diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6fafbc1ca9..d09937f81c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 # Unreleased
 
+* Feat: Automatically create transactions when navigating between screens (#643)
 # 6.2.2
 
 * Fix: ConcurrentModificationError in when finishing span (#664)
diff --git a/dart/lib/src/hub.dart b/dart/lib/src/hub.dart
index e533ef3501..b239e83bb7 100644
--- a/dart/lib/src/hub.dart
+++ b/dart/lib/src/hub.dart
@@ -3,7 +3,6 @@ import 'dart:collection';
 
 import 'package:meta/meta.dart';
 
-import 'noop_sentry_span.dart';
 import 'protocol.dart';
 import 'scope.dart';
 import 'sentry_client.dart';
@@ -340,6 +339,8 @@ class Hub {
     String operation, {
     String? description,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
     Map<String, dynamic>? customSamplingContext,
   }) =>
       startTransactionWithContext(
@@ -349,6 +350,8 @@ class Hub {
           description: description,
         ),
         bindToScope: bindToScope,
+        waitForChildren: waitForChildren,
+        autoFinishAfter: autoFinishAfter,
         customSamplingContext: customSamplingContext,
       );
 
@@ -357,6 +360,8 @@ class Hub {
     SentryTransactionContext transactionContext, {
     Map<String, dynamic>? customSamplingContext,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
   }) {
     if (!_isEnabled) {
       _options.logger(
@@ -380,8 +385,12 @@ class Hub {
         transactionContext = transactionContext.copyWith(sampled: sampled);
       }
 
-      final tracer = SentryTracer(transactionContext, this);
-
+      final tracer = SentryTracer(
+        transactionContext,
+        this,
+        waitForChildren: waitForChildren ?? false,
+        autoFinishAfter: autoFinishAfter,
+      );
       if (bindToScope ?? false) {
         item.scope.span = tracer;
       }
diff --git a/dart/lib/src/hub_adapter.dart b/dart/lib/src/hub_adapter.dart
index 11eb8044bd..3f7803fc29 100644
--- a/dart/lib/src/hub_adapter.dart
+++ b/dart/lib/src/hub_adapter.dart
@@ -102,11 +102,15 @@ class HubAdapter implements Hub {
     SentryTransactionContext transactionContext, {
     Map<String, dynamic>? customSamplingContext,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
   }) =>
       Sentry.startTransactionWithContext(
         transactionContext,
         customSamplingContext: customSamplingContext,
         bindToScope: bindToScope,
+        waitForChildren: waitForChildren,
+        autoFinishAfter: autoFinishAfter,
       );
 
   @override
@@ -115,6 +119,8 @@ class HubAdapter implements Hub {
     String operation, {
     String? description,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
     Map<String, dynamic>? customSamplingContext,
   }) =>
       Sentry.startTransaction(
@@ -122,6 +128,8 @@ class HubAdapter implements Hub {
         operation,
         description: description,
         bindToScope: bindToScope,
+        waitForChildren: waitForChildren,
+        autoFinishAfter: autoFinishAfter,
         customSamplingContext: customSamplingContext,
       );
 
diff --git a/dart/lib/src/noop_hub.dart b/dart/lib/src/noop_hub.dart
index 06163bac20..9963771496 100644
--- a/dart/lib/src/noop_hub.dart
+++ b/dart/lib/src/noop_hub.dart
@@ -4,7 +4,6 @@ import 'protocol.dart';
 import 'sentry_client.dart';
 import 'sentry_user_feedback.dart';
 import 'tracing.dart';
-import 'noop_sentry_span.dart';
 
 class NoOpHub implements Hub {
   NoOpHub._();
@@ -79,6 +78,8 @@ class NoOpHub implements Hub {
     String operation, {
     String? description,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
     Map<String, dynamic>? customSamplingContext,
   }) =>
       NoOpSentrySpan();
@@ -88,6 +89,8 @@ class NoOpHub implements Hub {
     SentryTransactionContext transactionContext, {
     Map<String, dynamic>? customSamplingContext,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
   }) =>
       NoOpSentrySpan();
 
diff --git a/dart/lib/src/protocol/breadcrumb.dart b/dart/lib/src/protocol/breadcrumb.dart
index e1ac8cd4fc..198942c2e4 100644
--- a/dart/lib/src/protocol/breadcrumb.dart
+++ b/dart/lib/src/protocol/breadcrumb.dart
@@ -1,7 +1,6 @@
 import 'package:meta/meta.dart';
 
 import '../utils.dart';
-import 'sentry_level.dart';
 import '../protocol.dart';
 
 /// Structed data to describe more information pior to the event captured.
diff --git a/dart/lib/src/protocol/sentry_span.dart b/dart/lib/src/protocol/sentry_span.dart
index abb0ed18a4..d262e85f30 100644
--- a/dart/lib/src/protocol/sentry_span.dart
+++ b/dart/lib/src/protocol/sentry_span.dart
@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import '../hub.dart';
 import '../protocol.dart';
 
@@ -17,6 +19,7 @@ class SentrySpan extends ISentrySpan {
 
   SpanStatus? _status;
   final Map<String, String> _tags = {};
+  void Function()? _finishedCallback;
 
   @override
   bool? sampled;
@@ -26,8 +29,10 @@ class SentrySpan extends ISentrySpan {
     this._context,
     this._hub, {
     bool? sampled,
+    Function()? finishedCallback,
   }) {
     this.sampled = sampled;
+    _finishedCallback = finishedCallback;
   }
 
   @override
@@ -45,6 +50,8 @@ class SentrySpan extends ISentrySpan {
     if (_throwable != null) {
       _hub.setSpanContext(_throwable, this, _tracer.name);
     }
+    _finishedCallback?.call();
+    await super.finish(status: status);
   }
 
   @override
diff --git a/dart/lib/src/protocol/sentry_transaction.dart b/dart/lib/src/protocol/sentry_transaction.dart
index 2d1496198e..2bbdbfc7bb 100644
--- a/dart/lib/src/protocol/sentry_transaction.dart
+++ b/dart/lib/src/protocol/sentry_transaction.dart
@@ -2,7 +2,6 @@ import 'package:meta/meta.dart';
 
 import '../protocol.dart';
 import '../sentry_tracer.dart';
-import 'sentry_span.dart';
 import '../utils.dart';
 
 @immutable
diff --git a/dart/lib/src/sentry.dart b/dart/lib/src/sentry.dart
index 4ded2d49ce..3d1a74f02b 100644
--- a/dart/lib/src/sentry.dart
+++ b/dart/lib/src/sentry.dart
@@ -229,6 +229,8 @@ class Sentry {
     String operation, {
     String? description,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
     Map<String, dynamic>? customSamplingContext,
   }) =>
       _hub.startTransaction(
@@ -236,6 +238,8 @@ class Sentry {
         operation,
         description: description,
         bindToScope: bindToScope,
+        waitForChildren: waitForChildren,
+        autoFinishAfter: autoFinishAfter,
         customSamplingContext: customSamplingContext,
       );
 
@@ -244,11 +248,15 @@ class Sentry {
     SentryTransactionContext transactionContext, {
     Map<String, dynamic>? customSamplingContext,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
   }) =>
       _hub.startTransactionWithContext(
         transactionContext,
         customSamplingContext: customSamplingContext,
         bindToScope: bindToScope,
+        waitForChildren: waitForChildren,
+        autoFinishAfter: autoFinishAfter,
       );
 
   /// Gets the current active transaction or span.
diff --git a/dart/lib/src/sentry_envelope.dart b/dart/lib/src/sentry_envelope.dart
index ac93c54b07..7c38fd63f8 100644
--- a/dart/lib/src/sentry_envelope.dart
+++ b/dart/lib/src/sentry_envelope.dart
@@ -6,8 +6,6 @@ import 'utils.dart';
 import 'sentry_attachment/sentry_attachment.dart';
 import 'sentry_envelope_header.dart';
 import 'sentry_envelope_item.dart';
-import 'protocol/sentry_event.dart';
-import 'protocol/sdk_version.dart';
 import 'sentry_user_feedback.dart';
 
 /// Class representation of `Envelope` file.
diff --git a/dart/lib/src/sentry_envelope_item.dart b/dart/lib/src/sentry_envelope_item.dart
index 69778046c9..b274334127 100644
--- a/dart/lib/src/sentry_envelope_item.dart
+++ b/dart/lib/src/sentry_envelope_item.dart
@@ -3,7 +3,6 @@ import 'protocol.dart';
 import 'utils.dart';
 import 'sentry_attachment/sentry_attachment.dart';
 import 'sentry_item_type.dart';
-import 'protocol/sentry_event.dart';
 import 'sentry_envelope_item_header.dart';
 import 'sentry_user_feedback.dart';
 
diff --git a/dart/lib/src/sentry_span_interface.dart b/dart/lib/src/sentry_span_interface.dart
index 4942fb736f..d59de3c0ed 100644
--- a/dart/lib/src/sentry_span_interface.dart
+++ b/dart/lib/src/sentry_span_interface.dart
@@ -24,9 +24,7 @@ abstract class ISentrySpan {
   void removeData(String key);
 
   /// Sets span timestamp marking this span as finished.
-  Future<void> finish({
-    SpanStatus? status,
-  });
+  Future<void> finish({SpanStatus? status}) async {}
 
   /// Gets span status.
   SpanStatus? get status;
diff --git a/dart/lib/src/sentry_tracer.dart b/dart/lib/src/sentry_tracer.dart
index 72880a4964..88988875e6 100644
--- a/dart/lib/src/sentry_tracer.dart
+++ b/dart/lib/src/sentry_tracer.dart
@@ -1,52 +1,65 @@
+import 'dart:async';
+
 import 'package:meta/meta.dart';
 
 import '../sentry.dart';
+import 'sentry_tracer_finish_status.dart';
 
 @internal
 class SentryTracer extends ISentrySpan {
   final Hub _hub;
+  late bool _waitForChildren;
   late String name;
 
-  // missing waitForChildren
-
   late final SentrySpan _rootSpan;
   final List<SentrySpan> _children = [];
   final Map<String, String> _extra = {};
+  Timer? _autoFinishAfterTimer;
+  var _finishStatus = SentryTracerFinishStatus.notFinishing();
 
-  SentryTracer(SentryTransactionContext transactionContext, this._hub) {
+  SentryTracer(SentryTransactionContext transactionContext, this._hub,
+      {bool waitForChildren = false, Duration? autoFinishAfter}) {
     _rootSpan = SentrySpan(
       this,
       transactionContext,
       _hub,
       sampled: transactionContext.sampled,
     );
+    _waitForChildren = waitForChildren;
+    if (autoFinishAfter != null) {
+      _autoFinishAfterTimer = Timer(autoFinishAfter, () async {
+        await finish(status: status ?? SpanStatus.ok());
+      });
+    }
     name = transactionContext.name;
   }
 
   @override
   Future<void> finish({SpanStatus? status}) async {
-    if (finished) {
-      return;
-    }
-
-    await _rootSpan.finish(status: status);
-
-    // finish unfinished spans otherwise transaction gets dropped
-    for (final span in _children) {
-      if (!span.finished) {
-        await span.finish(status: SpanStatus.deadlineExceeded());
+    _autoFinishAfterTimer?.cancel();
+    _finishStatus = SentryTracerFinishStatus.finishing(status);
+    if (!_rootSpan.finished &&
+        (!_waitForChildren || _haveAllChildrenFinished())) {
+      _rootSpan.status ??= status;
+      await _rootSpan.finish();
+
+      // finish unfinished spans otherwise transaction gets dropped
+      for (final span in _children) {
+        if (!span.finished) {
+          await span.finish(status: SpanStatus.deadlineExceeded());
+        }
       }
-    }
 
-    // remove from scope
-    _hub.configureScope((scope) {
-      if (scope.span == this) {
-        scope.span = null;
-      }
-    });
+      // remove from scope
+      _hub.configureScope((scope) {
+        if (scope.span == this) {
+          scope.span = null;
+        }
+      });
 
-    final transaction = SentryTransaction(this);
-    await _hub.captureTransaction(transaction);
+      final transaction = SentryTransaction(this);
+      await _hub.captureTransaction(transaction);
+    }
   }
 
   @override
@@ -110,18 +123,18 @@ class SentryTracer extends ISentrySpan {
     }
 
     final context = SentrySpanContext(
-      traceId: _rootSpan.context.traceId,
-      parentSpanId: parentSpanId,
-      operation: operation,
-      description: description,
-    );
-
-    final child = SentrySpan(
-      this,
-      context,
-      _hub,
-      sampled: _rootSpan.sampled,
-    );
+        traceId: _rootSpan.context.traceId,
+        parentSpanId: parentSpanId,
+        operation: operation,
+        description: description);
+
+    final child = SentrySpan(this, context, _hub, sampled: _rootSpan.sampled,
+        finishedCallback: () {
+      final finishStatus = _finishStatus;
+      if (finishStatus.finishing) {
+        finish(status: finishStatus.status);
+      }
+    });
 
     _children.add(child);
 
@@ -163,4 +176,13 @@ class SentryTracer extends ISentrySpan {
 
   @override
   SentryTraceHeader toSentryTrace() => _rootSpan.toSentryTrace();
+
+  bool _haveAllChildrenFinished() {
+    for (final child in children) {
+      if (!child.finished) {
+        return false;
+      }
+    }
+    return true;
+  }
 }
diff --git a/dart/lib/src/sentry_tracer_finish_status.dart b/dart/lib/src/sentry_tracer_finish_status.dart
new file mode 100644
index 0000000000..a5eca97948
--- /dev/null
+++ b/dart/lib/src/sentry_tracer_finish_status.dart
@@ -0,0 +1,17 @@
+import 'package:meta/meta.dart';
+
+import '../sentry.dart';
+
+@internal
+class SentryTracerFinishStatus {
+  final bool finishing;
+  final SpanStatus? status;
+
+  SentryTracerFinishStatus.finishing(SpanStatus? status)
+      : finishing = true,
+        status = status;
+
+  SentryTracerFinishStatus.notFinishing()
+      : finishing = false,
+        status = null;
+}
diff --git a/dart/lib/src/sentry_traces_sampler.dart b/dart/lib/src/sentry_traces_sampler.dart
index 3501ff64cc..9d981cca04 100644
--- a/dart/lib/src/sentry_traces_sampler.dart
+++ b/dart/lib/src/sentry_traces_sampler.dart
@@ -3,7 +3,6 @@ import 'dart:math';
 import 'package:meta/meta.dart';
 
 import '../sentry.dart';
-import 'tracing.dart';
 
 @internal
 class SentryTracesSampler {
diff --git a/dart/test/contexts_test.dart b/dart/test/contexts_test.dart
index 5bd97189d0..137795c716 100644
--- a/dart/test/contexts_test.dart
+++ b/dart/test/contexts_test.dart
@@ -6,7 +6,6 @@ import 'dart:convert';
 
 import 'package:collection/collection.dart';
 import 'package:sentry/sentry.dart';
-import 'package:sentry/src/protocol/sentry_gpu.dart';
 import 'package:test/test.dart';
 
 void main() {
diff --git a/dart/test/default_integrations_test.dart b/dart/test/default_integrations_test.dart
index 6ca1bb64ec..026025cb5e 100644
--- a/dart/test/default_integrations_test.dart
+++ b/dart/test/default_integrations_test.dart
@@ -1,5 +1,4 @@
 import 'package:sentry/sentry.dart';
-import 'package:sentry/src/noop_sentry_span.dart';
 import 'package:test/test.dart';
 
 import 'mocks/mock_hub.dart';
@@ -186,9 +185,12 @@ class PrintRecursionMockHub extends MockHub {
 
   @override
   ISentrySpan startTransactionWithContext(
-      SentryTransactionContext transactionContext,
-      {Map<String, dynamic>? customSamplingContext,
-      bool? bindToScope}) {
+    SentryTransactionContext transactionContext, {
+    Map<String, dynamic>? customSamplingContext,
+    bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
+  }) {
     return NoOpSentrySpan();
   }
 }
diff --git a/dart/test/http_client/failed_request_client_test.dart b/dart/test/http_client/failed_request_client_test.dart
index 80fce80fc1..342a7f00f1 100644
--- a/dart/test/http_client/failed_request_client_test.dart
+++ b/dart/test/http_client/failed_request_client_test.dart
@@ -3,7 +3,6 @@ import 'package:http/testing.dart';
 import 'package:mockito/mockito.dart';
 import 'package:sentry/sentry.dart';
 import 'package:sentry/src/http_client/failed_request_client.dart';
-import 'package:sentry/src/http_client/sentry_http_client.dart';
 import 'package:test/test.dart';
 
 import '../mocks.dart';
diff --git a/dart/test/http_client/sentry_http_client_test.dart b/dart/test/http_client/sentry_http_client_test.dart
index 390cc98561..697803b89c 100644
--- a/dart/test/http_client/sentry_http_client_test.dart
+++ b/dart/test/http_client/sentry_http_client_test.dart
@@ -3,7 +3,6 @@ import 'package:http/testing.dart';
 import 'package:mockito/mockito.dart';
 import 'package:sentry/sentry.dart';
 import 'package:sentry/src/http_client/failed_request_client.dart';
-import 'package:sentry/src/http_client/sentry_http_client.dart';
 import 'package:test/test.dart';
 
 import '../mocks/mock_hub.dart';
diff --git a/dart/test/hub_test.dart b/dart/test/hub_test.dart
index 32bf3ab1d9..2da153bf04 100644
--- a/dart/test/hub_test.dart
+++ b/dart/test/hub_test.dart
@@ -1,7 +1,5 @@
 import 'package:collection/collection.dart';
 import 'package:sentry/sentry.dart';
-import 'package:sentry/src/hub.dart';
-import 'package:sentry/src/noop_sentry_span.dart';
 import 'package:sentry/src/sentry_tracer.dart';
 import 'package:test/test.dart';
 
diff --git a/dart/test/mocks.dart b/dart/test/mocks.dart
index c9bd199512..cb36172d06 100644
--- a/dart/test/mocks.dart
+++ b/dart/test/mocks.dart
@@ -1,7 +1,6 @@
 import 'dart:async';
 
 import 'package:sentry/sentry.dart';
-import 'package:sentry/src/protocol.dart';
 import 'package:sentry/src/transport/rate_limiter.dart';
 
 final fakeDsn = 'https://abc@def.ingest.sentry.io/1234567';
diff --git a/dart/test/mocks/mock_hub.dart b/dart/test/mocks/mock_hub.dart
index b0e672abbd..5fddcff7f7 100644
--- a/dart/test/mocks/mock_hub.dart
+++ b/dart/test/mocks/mock_hub.dart
@@ -1,7 +1,5 @@
 import 'package:sentry/sentry.dart';
 import 'package:sentry/src/noop_hub.dart';
-import 'package:sentry/src/noop_sentry_span.dart';
-import 'package:sentry/src/sentry_user_feedback.dart';
 
 class MockHub implements Hub {
   List<CaptureEventCall> captureEventCalls = [];
@@ -127,6 +125,8 @@ class MockHub implements Hub {
     String operation, {
     String? description,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
     Map<String, dynamic>? customSamplingContext,
   }) {
     return NoOpSentrySpan();
@@ -137,6 +137,8 @@ class MockHub implements Hub {
     SentryTransactionContext transactionContext, {
     Map<String, dynamic>? customSamplingContext,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
   }) {
     return NoOpSentrySpan();
   }
diff --git a/dart/test/mocks/mock_sentry_client.dart b/dart/test/mocks/mock_sentry_client.dart
index f61e0f2360..8a9dbec36d 100644
--- a/dart/test/mocks/mock_sentry_client.dart
+++ b/dart/test/mocks/mock_sentry_client.dart
@@ -1,5 +1,4 @@
 import 'package:sentry/sentry.dart';
-import 'package:sentry/src/sentry_envelope.dart';
 
 class MockSentryClient implements SentryClient {
   List<CaptureEventCall> captureEventCalls = [];
diff --git a/dart/test/scope_test.dart b/dart/test/scope_test.dart
index a647ac0a1f..f01b4cf763 100644
--- a/dart/test/scope_test.dart
+++ b/dart/test/scope_test.dart
@@ -2,7 +2,6 @@ import 'dart:async';
 
 import 'package:collection/collection.dart';
 import 'package:sentry/sentry.dart';
-import 'package:sentry/src/noop_sentry_span.dart';
 import 'package:sentry/src/sentry_tracer.dart';
 import 'package:test/test.dart';
 
diff --git a/dart/test/sentry_envelope_item_test.dart b/dart/test/sentry_envelope_item_test.dart
index 65b7f915f1..35c553c468 100644
--- a/dart/test/sentry_envelope_item_test.dart
+++ b/dart/test/sentry_envelope_item_test.dart
@@ -4,7 +4,6 @@ import 'package:sentry/sentry.dart';
 import 'package:sentry/src/sentry_envelope_item_header.dart';
 import 'package:sentry/src/sentry_envelope_item.dart';
 import 'package:sentry/src/sentry_item_type.dart';
-import 'package:sentry/src/protocol/sentry_id.dart';
 import 'package:sentry/src/sentry_tracer.dart';
 import 'package:sentry/src/utils.dart';
 import 'package:test/test.dart';
diff --git a/dart/test/sentry_envelope_test.dart b/dart/test/sentry_envelope_test.dart
index 5a090e398f..bc28c508de 100644
--- a/dart/test/sentry_envelope_test.dart
+++ b/dart/test/sentry_envelope_test.dart
@@ -2,12 +2,10 @@ import 'dart:convert';
 import 'dart:typed_data';
 
 import 'package:sentry/sentry.dart';
-import 'package:sentry/src/sentry_envelope.dart';
 import 'package:sentry/src/sentry_envelope_header.dart';
 import 'package:sentry/src/sentry_envelope_item_header.dart';
 import 'package:sentry/src/sentry_envelope_item.dart';
 import 'package:sentry/src/sentry_item_type.dart';
-import 'package:sentry/src/protocol/sentry_id.dart';
 import 'package:sentry/src/sentry_tracer.dart';
 import 'package:sentry/src/utils.dart';
 import 'package:test/test.dart';
diff --git a/dart/test/sentry_envelope_vm_test.dart b/dart/test/sentry_envelope_vm_test.dart
index d3395a1d8a..b1bd880f91 100644
--- a/dart/test/sentry_envelope_vm_test.dart
+++ b/dart/test/sentry_envelope_vm_test.dart
@@ -1,13 +1,10 @@
 @TestOn('vm')
 import 'dart:io';
 
-import 'package:sentry/sentry.dart';
 import 'package:sentry/sentry_io.dart';
-import 'package:sentry/src/sentry_envelope.dart';
 import 'package:sentry/src/sentry_envelope_header.dart';
 import 'package:sentry/src/sentry_envelope_item_header.dart';
 import 'package:sentry/src/sentry_envelope_item.dart';
-import 'package:sentry/src/protocol/sentry_id.dart';
 import 'package:test/test.dart';
 
 void main() {
diff --git a/dart/test/sentry_event_test.dart b/dart/test/sentry_event_test.dart
index 2d57771254..2417ca5296 100644
--- a/dart/test/sentry_event_test.dart
+++ b/dart/test/sentry_event_test.dart
@@ -4,8 +4,6 @@
 
 import 'package:collection/collection.dart';
 import 'package:sentry/sentry.dart';
-import 'package:sentry/src/protocol/sentry_request.dart';
-import 'package:sentry/src/protocol/sentry_thread.dart';
 import 'package:sentry/src/version.dart';
 import 'package:sentry/src/utils.dart';
 import 'package:test/test.dart';
diff --git a/dart/test/sentry_span_test.dart b/dart/test/sentry_span_test.dart
index 90d9efe4b6..0a1b0f811a 100644
--- a/dart/test/sentry_span_test.dart
+++ b/dart/test/sentry_span_test.dart
@@ -1,6 +1,5 @@
 import 'package:sentry/sentry.dart';
 import 'package:sentry/src/sentry_tracer.dart';
-import 'package:sentry/src/protocol/sentry_span.dart';
 import 'package:test/test.dart';
 
 import 'mocks/mock_hub.dart';
@@ -171,6 +170,17 @@ void main() {
 
     expect(NoOpSentrySpan(), span);
   });
+
+  test('callback called on finish', () async {
+    var numberOfCallbackCalls = 0;
+    final sut = fixture.getSut(finishedCallback: () {
+      numberOfCallbackCalls += 1;
+    });
+
+    await sut.finish();
+
+    expect(numberOfCallbackCalls, 1);
+  });
 }
 
 class Fixture {
@@ -181,7 +191,7 @@ class Fixture {
   late SentryTracer tracer;
   final hub = MockHub();
 
-  SentrySpan getSut({bool? sampled = true}) {
+  SentrySpan getSut({bool? sampled = true, Function()? finishedCallback}) {
     tracer = SentryTracer(context, hub);
 
     return SentrySpan(
@@ -189,6 +199,7 @@ class Fixture {
       context,
       hub,
       sampled: sampled,
+      finishedCallback: finishedCallback,
     );
   }
 }
diff --git a/dart/test/sentry_tracer_test.dart b/dart/test/sentry_tracer_test.dart
index f58c84a1b9..39812f559c 100644
--- a/dart/test/sentry_tracer_test.dart
+++ b/dart/test/sentry_tracer_test.dart
@@ -170,6 +170,60 @@ void main() {
 
     expect(NoOpSentrySpan(), span);
   });
+
+  test('tracer finishes after auto finish duration', () async {
+    final sut = fixture.getSut(autoFinishAfter: Duration(milliseconds: 200));
+
+    expect(sut.finished, false);
+    await Future.delayed(Duration(milliseconds: 210));
+    expect(sut.status, SpanStatus.ok());
+    expect(sut.finished, true);
+  });
+
+  test('tracer finish needs child to finish', () async {
+    final sut = fixture.getSut(waitForChildren: true);
+
+    final child = sut.startChild('operation', description: 'description');
+
+    await sut.finish();
+    expect(sut.finished, false);
+
+    await child.finish();
+    expect(sut.finished, true);
+  });
+
+  test('tracer finish needs all children to finish', () async {
+    final sut = fixture.getSut(waitForChildren: true);
+
+    final childA = sut.startChild('operation-a', description: 'description');
+    final childB = sut.startChild('operation-b', description: 'description');
+
+    await sut.finish();
+    expect(sut.finished, false);
+
+    await childA.finish();
+    expect(sut.finished, false);
+
+    await childB.finish();
+    expect(sut.finished, true);
+  });
+
+  test('tracer without finish will not be finished when children are finished',
+      () async {
+    final sut = fixture.getSut(waitForChildren: true);
+
+    final childA = sut.startChild('operation-a', description: 'description');
+    final childB = sut.startChild('operation-b', description: 'description');
+
+    await childA.finish();
+    expect(sut.finished, false);
+
+    await childB.finish();
+    expect(sut.finished, false);
+
+    await sut.finish();
+    expect(sut.finished, true);
+  });
 }
 
 class Fixture {
@@ -177,6 +231,8 @@ class Fixture {
 
   SentryTracer getSut({
     bool? sampled = true,
+    bool waitForChildren = false,
+    Duration? autoFinishAfter,
   }) {
     final context = SentryTransactionContext(
       'name',
@@ -186,6 +242,8 @@ class Fixture {
     return SentryTracer(
       context,
       hub,
+      waitForChildren: waitForChildren,
+      autoFinishAfter: autoFinishAfter,
     );
   }
 }
diff --git a/flutter/example/android/app/src/main/AndroidManifest.xml b/flutter/example/android/app/src/main/AndroidManifest.xml
index da3c097241..c2029920e9 100644
--- a/flutter/example/android/app/src/main/AndroidManifest.xml
+++ b/flutter/example/android/app/src/main/AndroidManifest.xml
@@ -12,7 +12,8 @@
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
-            android:windowSoftInputMode="adjustResize">
+            android:windowSoftInputMode="adjustResize"
+            android:exported="true">
             <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user
                  while the Flutter UI initializes. After that, this theme continues
diff --git a/flutter/example/lib/main.dart b/flutter/example/lib/main.dart
index 2a60aaf177..e5bd062817 100644
--- a/flutter/example/lib/main.dart
+++ b/flutter/example/lib/main.dart
@@ -194,11 +194,12 @@ class MainScaffold extends StatelessWidget {
             RaisedButton(
               child: const Text('Capture transaction'),
               onPressed: () async {
-                final transaction = Sentry.startTransaction(
-                  'myNewTrWithError3',
-                  'myNewOp',
-                  description: 'myTr myOp',
-                );
+                final transaction = Sentry.getSpan() ??
+                    Sentry.startTransaction(
+                      'myNewTrWithError3',
+                      'myNewOp',
+                      description: 'myTr myOp',
+                    );
                 transaction.setTag('myTag', 'myValue');
                 transaction.setData('myExtra', 'myExtraValue');
 
@@ -479,11 +480,12 @@ class SecondaryScaffold extends StatelessWidget {
 }
 
 Future<void> makeWebRequest(BuildContext context) async {
-  final transaction = Sentry.startTransaction(
-    'flutterwebrequest',
-    'request',
-    bindToScope: true,
-  );
+  final transaction = Sentry.getSpan() ??
+      Sentry.startTransaction(
+        'flutterwebrequest',
+        'request',
+        bindToScope: true,
+      );
 
   final client = SentryHttpClient(
     captureFailedRequests: true,
diff --git a/flutter/lib/src/navigation/sentry_navigator_observer.dart b/flutter/lib/src/navigation/sentry_navigator_observer.dart
index 2193ab568d..4eaeb22a6a 100644
--- a/flutter/lib/src/navigation/sentry_navigator_observer.dart
+++ b/flutter/lib/src/navigation/sentry_navigator_observer.dart
@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:flutter/widgets.dart';
 import 'package:sentry/sentry.dart';
 import '../../sentry_flutter.dart';
@@ -30,21 +32,35 @@ const _navigationKey = 'navigation';
 ///   // other parameter ...
 /// )
 /// ```
+///
+/// The option [enableAutoTransactions] is enabled by default. For every new
+/// route a transaction is started. It's automatically finished after 3 seconds
+/// or when all child spans are finished, if those happen to take longer. The
+/// transaction will be set to [Scope.span] if the latter is empty.
+///
 /// Enabling the [setRouteNameAsTransaction] option overrides the current
-/// [Scope.transaction]. So be careful when this is used together with
-/// performance monitoring.
+/// [Scope.transaction] which will also override the name of the current
+/// [Scope.span]. So be careful when this is used together with performance
+/// monitoring.
 ///
 /// See also:
 ///   - [RouteObserver](https://api.flutter.dev/flutter/widgets/RouteObserver-class.html)
 ///   - [Navigating with arguments](https://flutter.dev/docs/cookbook/navigation/navigate-with-arguments)
 class SentryNavigatorObserver extends RouteObserver<PageRoute<dynamic>> {
-  SentryNavigatorObserver({Hub? hub, bool setRouteNameAsTransaction = false})
+  SentryNavigatorObserver(
+      {Hub? hub,
+      bool enableAutoTransactions = true,
+      bool setRouteNameAsTransaction = false})
       : _hub = hub ?? HubAdapter(),
+        _enableAutoTransactions = enableAutoTransactions,
         _setRouteNameAsTransaction = setRouteNameAsTransaction;
 
   final Hub _hub;
+  final bool _enableAutoTransactions;
   final bool _setRouteNameAsTransaction;
 
+  ISentrySpan? _transaction;
+
   @override
   void didPush(Route<dynamic> route, Route<dynamic>? previousRoute) {
     super.didPush(route, previousRoute);
@@ -54,6 +70,8 @@ class SentryNavigatorObserver extends RouteObserver<PageRoute<dynamic>> {
       from: previousRoute?.settings,
       to: route.settings,
     );
+    _finishTransaction();
+    _startTransaction(route.settings.name, route.settings.arguments);
   }
 
   @override
@@ -76,6 +94,11 @@ class SentryNavigatorObserver extends RouteObserver<PageRoute<dynamic>> {
       from: route.settings,
       to: previousRoute?.settings,
     );
+    _finishTransaction();
+    _startTransaction(
+      previousRoute?.settings.name,
+      previousRoute?.settings.arguments,
+    );
   }
 
   void _addBreadcrumb({
@@ -100,6 +123,33 @@ class SentryNavigatorObserver extends RouteObserver<PageRoute<dynamic>> {
       });
     }
   }
+
+  void _startTransaction(String? name, Object? arguments) {
+    if (!_enableAutoTransactions) {
+      return;
+    }
+    if (name == null) {
+      return;
+    }
+    _transaction = _hub.startTransaction(
+      name,
+      'ui.load',
+      waitForChildren: true,
+      autoFinishAfter: Duration(seconds: 3),
+    );
+    if (arguments != null) {
+      _transaction?.setData('route_settings_arguments', arguments);
+    }
+
+    _hub.configureScope((scope) {
+      scope.span ??= _transaction;
+    });
+  }
+
+  Future<void> _finishTransaction() async {
+    _transaction?.status ??= SpanStatus.ok();
+    return await _transaction?.finish();
+  }
 }
 
 /// This class makes it easier to record breadcrumbs for events of Flutters
diff --git a/flutter/lib/src/widgets_binding_observer.dart b/flutter/lib/src/widgets_binding_observer.dart
index 2cfc193d27..4af1789efe 100644
--- a/flutter/lib/src/widgets_binding_observer.dart
+++ b/flutter/lib/src/widgets_binding_observer.dart
@@ -1,7 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
-import 'package:flutter/widgets.dart';
-import 'sentry_flutter_options.dart';
 import '../sentry_flutter.dart';
 
 /// This is a `WidgetsBindingObserver` which can observe some events of a
diff --git a/flutter/pubspec.yaml b/flutter/pubspec.yaml
index 0ce15b6ab0..a35eb513f1 100644
--- a/flutter/pubspec.yaml
+++ b/flutter/pubspec.yaml
@@ -17,6 +17,7 @@ dependencies:
   package_info_plus: ^1.0.0
 
 dev_dependencies:
+  build_runner: ^2.1.5
   flutter_test:
     sdk: flutter
   mockito: ^5.0.16
diff --git a/flutter/test/default_integrations_test.dart b/flutter/test/default_integrations_test.dart
index 2f2be6e499..24e74187f5 100644
--- a/flutter/test/default_integrations_test.dart
+++ b/flutter/test/default_integrations_test.dart
@@ -1,14 +1,10 @@
-import 'dart:async';
-
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mockito/mockito.dart';
 import 'package:package_info_plus/package_info_plus.dart';
-import 'package:sentry/sentry.dart';
 import 'package:sentry_flutter/sentry_flutter.dart';
-import 'package:sentry_flutter/src/sentry_flutter_options.dart';
 
 import 'mocks.dart';
 import 'mocks.mocks.dart';
diff --git a/flutter/test/initialization_test.dart b/flutter/test/initialization_test.dart
index de10456975..11c2324b1b 100644
--- a/flutter/test/initialization_test.dart
+++ b/flutter/test/initialization_test.dart
@@ -1,7 +1,6 @@
 @TestOn('vm')
 
 import 'package:flutter_test/flutter_test.dart';
-import 'package:sentry/sentry.dart';
 import 'package:sentry_flutter/sentry_flutter.dart';
 
 import 'mocks.dart';
diff --git a/flutter/test/load_contexts_integrations_test.dart b/flutter/test/load_contexts_integrations_test.dart
index c034086c39..baca5ff99b 100644
--- a/flutter/test/load_contexts_integrations_test.dart
+++ b/flutter/test/load_contexts_integrations_test.dart
@@ -1,7 +1,6 @@
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:sentry_flutter/sentry_flutter.dart';
-import 'package:sentry_flutter/src/sentry_flutter_options.dart';
 
 import 'mocks.mocks.dart';
 
diff --git a/flutter/test/mocks.dart b/flutter/test/mocks.dart
index 3e7ae0e655..98aff4d1da 100644
--- a/flutter/test/mocks.dart
+++ b/flutter/test/mocks.dart
@@ -1,12 +1,30 @@
 import 'package:mockito/annotations.dart';
 import 'package:sentry/sentry.dart';
 import 'package:sentry/src/platform/platform.dart';
-import 'package:sentry/src/platform_checker.dart';
-import 'package:sentry/src/sentry_user_feedback.dart';
+
+import 'mocks.mocks.dart';
 
 const fakeDsn = 'https://abc@def.ingest.sentry.io/1234567';
 
-@GenerateMocks([Hub, Transport])
+// https://github.com/dart-lang/mockito/blob/master/NULL_SAFETY_README.md#fallback-generators
+ISentrySpan startTransactionShim(
+  String? name,
+  String? operation, {
+  String? description,
+  bool? bindToScope,
+  bool? waitForChildren,
+  Duration? autoFinishAfter,
+  Map<String, dynamic>? customSamplingContext,
+}) {
+  return MockNoOpSentrySpan();
+}
+
+@GenerateMocks([
+  Transport,
+  NoOpSentrySpan
+], customMocks: [
+  MockSpec<Hub>(fallbackGenerators: {#startTransaction: startTransactionShim})
+])
 void main() {}
 
 class MockPlatform implements Platform {
@@ -169,6 +187,8 @@ class NoOpHub implements Hub {
     String operation, {
     String? description,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
     Map<String, dynamic>? customSamplingContext,
   }) {
     return NoOpSentrySpan();
@@ -179,6 +199,8 @@ class NoOpHub implements Hub {
     SentryTransactionContext transactionContext, {
     Map<String, dynamic>? customSamplingContext,
     bool? bindToScope,
+    bool? waitForChildren,
+    Duration? autoFinishAfter,
   }) {
     return NoOpSentrySpan();
   }
diff --git a/flutter/test/mocks.mocks.dart b/flutter/test/mocks.mocks.dart
index 2ee6b6f00e..53e0f52cba 100644
--- a/flutter/test/mocks.mocks.dart
+++ b/flutter/test/mocks.mocks.dart
@@ -1,34 +1,130 @@
-// Mocks generated by Mockito 5.0.7 from annotations
-// in sentry_flutter/example/ios/.symlinks/plugins/sentry_flutter/test/mocks.dart.
+// Mocks generated by Mockito 5.0.16 from annotations
+// in sentry_flutter/test/mocks.dart.
 // Do not manually edit this file.
 
-import 'dart:async' as _i4;
+import 'dart:async' as _i6;
 
 import 'package:mockito/mockito.dart' as _i1;
-import 'package:sentry/src/hub.dart' as _i3;
-import 'package:sentry/src/protocol/breadcrumb.dart' as _i7;
-import 'package:sentry/src/protocol/sentry_event.dart' as _i5;
-import 'package:sentry/src/protocol/sentry_id.dart' as _i2;
-import 'package:sentry/src/protocol/sentry_level.dart' as _i6;
-import 'package:sentry/src/sentry_client.dart' as _i8;
-import 'package:sentry/src/sentry_envelope.dart' as _i10;
-import 'package:sentry/src/transport/transport.dart' as _i9;
+import 'package:sentry/src/hub.dart' as _i4;
+import 'package:sentry/src/protocol.dart' as _i3;
+import 'package:sentry/src/sentry_client.dart' as _i9;
+import 'package:sentry/src/sentry_envelope.dart' as _i7;
+import 'package:sentry/src/sentry_user_feedback.dart' as _i8;
+import 'package:sentry/src/tracing.dart' as _i2;
+import 'package:sentry/src/transport/transport.dart' as _i5;
 
+import 'mocks.dart' as _i10;
+
+// ignore_for_file: avoid_redundant_argument_values
+// ignore_for_file: avoid_setters_without_getters
 // ignore_for_file: comment_references
+// ignore_for_file: implementation_imports
+// ignore_for_file: invalid_use_of_visible_for_testing_member
+// ignore_for_file: prefer_const_constructors
 // ignore_for_file: unnecessary_parenthesis
+// ignore_for_file: camel_case_types
 
-// ignore_for_file: prefer_const_constructors
+class _FakeSentrySpanContext_0 extends _i1.Fake
+    implements _i2.SentrySpanContext {}
 
-// ignore_for_file: avoid_redundant_argument_values
+class _FakeDateTime_1 extends _i1.Fake implements DateTime {}
 
-class _FakeSentryId extends _i1.Fake implements _i2.SentryId {}
+class _FakeISentrySpan_2 extends _i1.Fake implements _i2.ISentrySpan {}
 
-class _FakeHub extends _i1.Fake implements _i3.Hub {}
+class _FakeSentryTraceHeader_3 extends _i1.Fake
+    implements _i3.SentryTraceHeader {}
+
+class _FakeSentryId_4 extends _i1.Fake implements _i3.SentryId {}
+
+class _FakeHub_5 extends _i1.Fake implements _i4.Hub {}
+
+/// A class which mocks [Transport].
+///
+/// See the documentation for Mockito's code generation for more information.
+class MockTransport extends _i1.Mock implements _i5.Transport {
+  MockTransport() {
+    _i1.throwOnMissingStub(this);
+  }
+
+  @override
+  _i6.Future<_i3.SentryId?> send(_i7.SentryEnvelope? envelope) =>
+      (super.noSuchMethod(Invocation.method(#send, [envelope]),
+              returnValue: Future<_i3.SentryId?>.value())
+          as _i6.Future<_i3.SentryId?>);
+  @override
+  String toString() => super.toString();
+}
+
+/// A class which mocks [NoOpSentrySpan].
+///
+/// See the documentation for Mockito's code generation for more information.
+class MockNoOpSentrySpan extends _i1.Mock implements _i2.NoOpSentrySpan {
+  MockNoOpSentrySpan() {
+    _i1.throwOnMissingStub(this);
+  }
+
+  @override
+  _i2.SentrySpanContext get context =>
+      (super.noSuchMethod(Invocation.getter(#context),
+          returnValue: _FakeSentrySpanContext_0()) as _i2.SentrySpanContext);
+  @override
+  DateTime get startTimestamp =>
+      (super.noSuchMethod(Invocation.getter(#startTimestamp),
+          returnValue: _FakeDateTime_1()) as DateTime);
+  @override
+  bool get finished =>
+      (super.noSuchMethod(Invocation.getter(#finished), returnValue: false)
+          as bool);
+  @override
+  set throwable(dynamic throwable) =>
+      super.noSuchMethod(Invocation.setter(#throwable, throwable),
+          returnValueForMissingStub: null);
+  @override
+  set status(_i3.SpanStatus? status) =>
+      super.noSuchMethod(Invocation.setter(#status, status),
+          returnValueForMissingStub: null);
+  @override
+  _i6.Future<void> finish(
+          {_i3.SpanStatus? status, Duration? autoFinishAfter}) =>
+      (super.noSuchMethod(
+          Invocation.method(#finish, [],
+              {#status: status, #autoFinishAfter: autoFinishAfter}),
+          returnValue: Future<void>.value(),
+          returnValueForMissingStub: Future<void>.value()) as _i6.Future<void>);
+  @override
+  void removeData(String? key) =>
+      super.noSuchMethod(Invocation.method(#removeData, [key]),
+          returnValueForMissingStub: null);
+  @override
+  void removeTag(String? key) =>
+      super.noSuchMethod(Invocation.method(#removeTag, [key]),
+          returnValueForMissingStub: null);
+  @override
+  void setData(String? key, dynamic value) =>
+      super.noSuchMethod(Invocation.method(#setData, [key, value]),
+          returnValueForMissingStub: null);
+  @override
+  void setTag(String? key, String? value) =>
+      super.noSuchMethod(Invocation.method(#setTag, [key, value]),
+          returnValueForMissingStub: null);
+  @override
+  _i2.ISentrySpan startChild(String? operation, {String? description}) =>
+      (super.noSuchMethod(
+          Invocation.method(
+              #startChild, [operation], {#description: description}),
+          returnValue: _FakeISentrySpan_2()) as _i2.ISentrySpan);
+  @override
+  _i3.SentryTraceHeader toSentryTrace() =>
+      (super.noSuchMethod(Invocation.method(#toSentryTrace, []),
+          returnValue: _FakeSentryTraceHeader_3()) as _i3.SentryTraceHeader);
+  @override
+  String toString() => super.toString();
+}
 
 /// A class which mocks [Hub].
 ///
 /// See the documentation for Mockito's code generation for more information.
-class MockHub extends _i1.Mock implements _i3.Hub {
+class MockHub extends _i1.Mock implements _i4.Hub {
   MockHub() {
     _i1.throwOnMissingStub(this);
   }
@@ -38,12 +134,12 @@ class MockHub extends _i1.Mock implements _i3.Hub {
       (super.noSuchMethod(Invocation.getter(#isEnabled), returnValue: false)
           as bool);
   @override
-  _i2.SentryId get lastEventId =>
+  _i3.SentryId get lastEventId =>
       (super.noSuchMethod(Invocation.getter(#lastEventId),
-          returnValue: _FakeSentryId()) as _i2.SentryId);
+          returnValue: _FakeSentryId_4()) as _i3.SentryId);
   @override
-  _i4.Future<_i2.SentryId> captureEvent(_i5.SentryEvent? event,
-          {dynamic stackTrace, dynamic hint, _i3.ScopeCallback? withScope}) =>
+  _i6.Future<_i3.SentryId> captureEvent(_i3.SentryEvent? event,
+          {dynamic stackTrace, dynamic hint, _i4.ScopeCallback? withScope}) =>
       (super.noSuchMethod(
               Invocation.method(#captureEvent, [
                 event
@@ -52,11 +148,11 @@ class MockHub extends _i1.Mock implements _i3.Hub {
                 #hint: hint,
                 #withScope: withScope
               }),
-              returnValue: Future<_i2.SentryId>.value(_FakeSentryId()))
-          as _i4.Future<_i2.SentryId>);
+              returnValue: Future<_i3.SentryId>.value(_FakeSentryId_4()))
+          as _i6.Future<_i3.SentryId>);
   @override
-  _i4.Future<_i2.SentryId> captureException(dynamic throwable,
-          {dynamic stackTrace, dynamic hint, _i3.ScopeCallback? withScope}) =>
+  _i6.Future<_i3.SentryId> captureException(dynamic throwable,
+          {dynamic stackTrace, dynamic hint, _i4.ScopeCallback? withScope}) =>
       (super.noSuchMethod(
               Invocation.method(#captureException, [
                 throwable
@@ -65,15 +161,15 @@ class MockHub extends _i1.Mock implements _i3.Hub {
                 #hint: hint,
                 #withScope: withScope
               }),
-              returnValue: Future<_i2.SentryId>.value(_FakeSentryId()))
-          as _i4.Future<_i2.SentryId>);
+              returnValue: Future<_i3.SentryId>.value(_FakeSentryId_4()))
+          as _i6.Future<_i3.SentryId>);
   @override
-  _i4.Future<_i2.SentryId> captureMessage(String? message,
-          {_i6.SentryLevel? level,
+  _i6.Future<_i3.SentryId> captureMessage(String? message,
+          {_i3.SentryLevel? level,
           String? template,
           List<dynamic>? params,
           dynamic hint,
-          _i3.ScopeCallback? withScope}) =>
+          _i4.ScopeCallback? withScope}) =>
       (super.noSuchMethod(
               Invocation.method(#captureMessage, [
                 message
@@ -84,40 +180,87 @@ class MockHub extends _i1.Mock implements _i3.Hub {
                 #hint: hint,
                 #withScope: withScope
               }),
-              returnValue: Future<_i2.SentryId>.value(_FakeSentryId()))
-          as _i4.Future<_i2.SentryId>);
+              returnValue: Future<_i3.SentryId>.value(_FakeSentryId_4()))
+          as _i6.Future<_i3.SentryId>);
   @override
-  void addBreadcrumb(_i7.Breadcrumb? crumb, {dynamic hint}) => super
+  _i6.Future<void> captureUserFeedback(_i8.SentryUserFeedback? userFeedback) =>
+      (super.noSuchMethod(
+          Invocation.method(#captureUserFeedback, [userFeedback]),
+          returnValue: Future<void>.value(),
+          returnValueForMissingStub: Future<void>.value()) as _i6.Future<void>);
+  @override
+  void addBreadcrumb(_i3.Breadcrumb? crumb, {dynamic hint}) => super
       .noSuchMethod(Invocation.method(#addBreadcrumb, [crumb], {#hint: hint}),
           returnValueForMissingStub: null);
   @override
-  void bindClient(_i8.SentryClient? client) =>
+  void bindClient(_i9.SentryClient? client) =>
       super.noSuchMethod(Invocation.method(#bindClient, [client]),
           returnValueForMissingStub: null);
   @override
-  _i3.Hub clone() => (super.noSuchMethod(Invocation.method(#clone, []),
-      returnValue: _FakeHub()) as _i3.Hub);
+  _i4.Hub clone() => (super.noSuchMethod(Invocation.method(#clone, []),
+      returnValue: _FakeHub_5()) as _i4.Hub);
   @override
-  _i4.Future<void> close() => (super.noSuchMethod(Invocation.method(#close, []),
-      returnValue: Future<void>.value(null),
-      returnValueForMissingStub: Future.value()) as _i4.Future<void>);
+  _i6.Future<void> close() => (super.noSuchMethod(Invocation.method(#close, []),
+      returnValue: Future<void>.value(),
+      returnValueForMissingStub: Future<void>.value()) as _i6.Future<void>);
   @override
-  void configureScope(_i3.ScopeCallback? callback) =>
+  void configureScope(_i4.ScopeCallback? callback) =>
       super.noSuchMethod(Invocation.method(#configureScope, [callback]),
           returnValueForMissingStub: null);
-}
-
-/// A class which mocks [Transport].
-///
-/// See the documentation for Mockito's code generation for more information.
-class MockTransport extends _i1.Mock implements _i9.Transport {
-  MockTransport() {
-    _i1.throwOnMissingStub(this);
-  }
-
   @override
-  _i4.Future<_i2.SentryId> send(_i10.SentryEnvelope? envelope) =>
-      (super.noSuchMethod(Invocation.method(#send, [envelope]),
-              returnValue: Future<_i2.SentryId>.value(_FakeSentryId()))
-          as _i4.Future<_i2.SentryId>);
+  _i2.ISentrySpan startTransaction(String? name, String? operation,
+          {String? description,
+          bool? bindToScope,
+          bool? waitForChildren,
+          Duration? autoFinishAfter,
+          Map<String, dynamic>? customSamplingContext}) =>
+      (super.noSuchMethod(
+              Invocation.method(#startTransaction, [
+                name,
+                operation
+              ], {
+                #description: description,
+                #bindToScope: bindToScope,
+                #waitForChildren: waitForChildren,
+                #autoFinishAfter: autoFinishAfter,
+                #customSamplingContext: customSamplingContext
+              }),
+              returnValue: _i10.startTransactionShim(name, operation,
+                  description: description,
+                  bindToScope: bindToScope,
+                  waitForChildren: waitForChildren,
+                  autoFinishAfter: autoFinishAfter,
+                  customSamplingContext: customSamplingContext))
+          as _i2.ISentrySpan);
+  @override
+  _i2.ISentrySpan startTransactionWithContext(
+          _i2.SentryTransactionContext? transactionContext,
+          {Map<String, dynamic>? customSamplingContext,
+          bool? bindToScope,
+          bool? waitForChildren,
+          Duration? autoFinishAfter}) =>
+      (super.noSuchMethod(
+          Invocation.method(#startTransactionWithContext, [
+            transactionContext
+          ], {
+            #customSamplingContext: customSamplingContext,
+            #bindToScope: bindToScope,
+            #waitForChildren: waitForChildren,
+            #autoFinishAfter: autoFinishAfter
+          }),
+          returnValue: _FakeISentrySpan_2()) as _i2.ISentrySpan);
+  @override
+  _i6.Future<_i3.SentryId> captureTransaction(
+          _i3.SentryTransaction? transaction) =>
+      (super.noSuchMethod(Invocation.method(#captureTransaction, [transaction]),
+              returnValue: Future<_i3.SentryId>.value(_FakeSentryId_4()))
+          as _i6.Future<_i3.SentryId>);
+  @override
+  void setSpanContext(
+          dynamic throwable, _i2.ISentrySpan? span, String? transaction) =>
+      super.noSuchMethod(
+          Invocation.method(#setSpanContext, [throwable, span, transaction]),
+          returnValueForMissingStub: null);
+  @override
+  String toString() => super.toString();
 }
diff --git a/flutter/test/not_initialized_widgets_binding_test.dart b/flutter/test/not_initialized_widgets_binding_test.dart
index 7ffebc982a..3919255506 100644
--- a/flutter/test/not_initialized_widgets_binding_test.dart
+++ b/flutter/test/not_initialized_widgets_binding_test.dart
@@ -1,6 +1,5 @@
 import 'package:flutter_test/flutter_test.dart';
 import 'package:sentry_flutter/sentry_flutter.dart';
-import 'package:sentry_flutter/src/sentry_flutter_options.dart';
 
 import 'mocks.mocks.dart';
 
diff --git a/flutter/test/sentry_flutter_test.dart b/flutter/test/sentry_flutter_test.dart
index 012f439eda..4827451cf6 100644
--- a/flutter/test/sentry_flutter_test.dart
+++ b/flutter/test/sentry_flutter_test.dart
@@ -1,9 +1,7 @@
 import 'package:flutter/foundation.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:package_info_plus/package_info_plus.dart';
-import 'package:sentry/sentry.dart';
 import 'package:sentry_flutter/sentry_flutter.dart';
-import 'package:sentry/src/platform_checker.dart';
 import 'package:sentry_flutter/src/integrations/debug_print_integration.dart';
 import 'package:sentry_flutter/src/version.dart';
 import 'mocks.dart';
diff --git a/flutter/test/sentry_navigator_observer_test.dart b/flutter/test/sentry_navigator_observer_test.dart
index 0ca5496d09..5f86a4ba35 100644
--- a/flutter/test/sentry_navigator_observer_test.dart
+++ b/flutter/test/sentry_navigator_observer_test.dart
@@ -1,3 +1,4 @@
+import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mockito/mockito.dart';
@@ -9,10 +10,217 @@ import 'mocks.mocks.dart';
 void main() {
   late Fixture fixture;
 
+  PageRoute route(RouteSettings? settings) => PageRouteBuilder<void>(
+        pageBuilder: (_, __, ___) => Container(),
+        settings: settings,
+      );
+
+  void _whenAnyStart(MockHub mockHub, ISentrySpan thenReturnSpan,
+      {String? name}) {
+    when(mockHub.startTransaction(
+      name ?? any,
+      any,
+      description: anyNamed('description'),
+      bindToScope: anyNamed('bindToScope'),
+      waitForChildren: anyNamed('waitForChildren'),
+      autoFinishAfter: anyNamed('autoFinishAfter'),
+      customSamplingContext: anyNamed('customSamplingContext'),
+    )).thenReturn(thenReturnSpan);
+  }
+
   setUp(() {
     fixture = Fixture();
   });
 
+  group('RouteObserverTransaction', () {
+    test('didPush starts transaction', () {
+      final currentRoute = route(RouteSettings(name: 'Current Route'));
+
+      final hub = _MockHub();
+      final span = MockNoOpSentrySpan();
+      _whenAnyStart(hub, span);
+      final sut = fixture.getSut(hub: hub);
+
+      sut.didPush(currentRoute, null);
+
+      verify(hub.startTransaction(
+        'Current Route',
+        'ui.load',
+        waitForChildren: true,
+        autoFinishAfter: Duration(seconds: 3),
+      ));
+
+      hub.configureScope((scope) {
+        expect(scope.span, span);
+      });
+    });
+
+    test('route with empty name does not start transaction', () {
+      final currentRoute = route(null);
+
+      final hub = _MockHub();
+      final span = MockNoOpSentrySpan();
+      _whenAnyStart(hub, span);
+      final sut = fixture.getSut(hub: hub);
+
+      sut.didPush(currentRoute, null);
+
+      verifyNever(hub.startTransaction(
+        'Current Route',
+        'ui.load',
+        waitForChildren: true,
+        autoFinishAfter: Duration(seconds: 3),
+      ));
+
+      hub.configureScope((scope) {
+        expect(scope.span, null);
+      });
+    });
+
+    test('no transaction on opt-out', () {
+      final currentRoute = route(RouteSettings(name: 'Current Route'));
+
+      final hub = _MockHub();
+      final span = MockNoOpSentrySpan();
+      _whenAnyStart(hub, span);
+      final sut = fixture.getSut(hub: hub, enableAutoTransactions: false);
+
+      sut.didPush(currentRoute, null);
+
+      verifyNever(hub.startTransaction(
+        'Current Route',
+        'ui.load',
+        waitForChildren: true,
+        autoFinishAfter: Duration(seconds: 3),
+      ));
+
+      hub.configureScope((scope) {
+        expect(scope.span, null);
+      });
+    });
+
+    test('do not bind to scope if already set', () {
+      final currentRoute = route(RouteSettings(name: 'Current Route'));
+
+      final hub = _MockHub();
+      hub.scope.span = NoOpSentrySpan();
+      final span = MockNoOpSentrySpan();
+      _whenAnyStart(hub, span);
+      final sut = fixture.getSut(hub: hub);
+
+      sut.didPush(currentRoute, null);
+
+      verify(hub.startTransaction(
+        'Current Route',
+        'ui.load',
+        waitForChildren: true,
+        autoFinishAfter: Duration(seconds: 3),
+      ));
+
+      hub.configureScope((scope) {
+        expect(scope.span, NoOpSentrySpan());
+      });
+    });
+
+    test('didPush finishes previous transaction', () {
+      final firstRoute = route(RouteSettings(name: 'First Route'));
+      final secondRoute = route(RouteSettings(name: 'Second Route'));
+
+      final hub = _MockHub();
+      final span = MockNoOpSentrySpan();
+      when(span.status).thenReturn(null);
+      _whenAnyStart(hub, span);
+      final sut = fixture.getSut(hub: hub);
+
+      sut.didPush(firstRoute, null);
+      sut.didPush(secondRoute, firstRoute);
+
+      verify(span.status = SpanStatus.ok());
+      verify(span.finish());
+    });
+
+    test('didPop finishes transaction', () async {
+      final currentRoute = route(RouteSettings(name: 'Current Route'));
+
+      final hub = _MockHub();
+      final span = MockNoOpSentrySpan();
+      when(span.status).thenReturn(null);
+      _whenAnyStart(hub, span);
+
+      final sut = fixture.getSut(hub: hub);
+
+      sut.didPush(currentRoute, null);
+      sut.didPop(currentRoute, null);
+
+      verify(span.status = SpanStatus.ok());
+      verify(span.finish());
+    });
+
+    test('didPop re-starts previous', () {
+      final previousRoute = route(RouteSettings(name: 'Previous Route'));
+      final currentRoute = route(RouteSettings(name: 'Current Route'));
+
+      final hub = _MockHub();
+      final previousSpan = MockNoOpSentrySpan();
+      when(previousSpan.status).thenReturn(null);
+      _whenAnyStart(hub, previousSpan, name: 'Previous Route');
+
+      final sut = fixture.getSut(hub: hub);
+
+      sut.didPop(currentRoute, previousRoute);
+
+      verify(hub.startTransaction(
+        'Previous Route',
+        'ui.load',
+        waitForChildren: true,
+        autoFinishAfter: Duration(seconds: 3),
+      ));
+
+      hub.configureScope((scope) {
+        expect(scope.span, previousSpan);
+      });
+    });
+
+    test('didPush push multiple finishes previous', () async {
+      final firstRoute = route(RouteSettings(name: 'First Route'));
+      final secondRoute = route(RouteSettings(name: 'Second Route'));
+
+      final hub = _MockHub();
+      final firstSpan = MockNoOpSentrySpan();
+      when(firstSpan.status).thenReturn(null);
+      final secondSpan = MockNoOpSentrySpan();
+      when(secondSpan.status).thenReturn(null);
+      _whenAnyStart(hub, firstSpan, name: 'First Route');
+      _whenAnyStart(hub, secondSpan, name: 'Second Route');
+      final sut = fixture.getSut(hub: hub);
+
+      sut.didPush(firstRoute, null);
+      sut.didPush(secondRoute, firstRoute);
+
+      verify(firstSpan.status = SpanStatus.ok());
+      verify(firstSpan.finish());
+    });
+
+    test('route arguments are set on transaction', () {
+      final arguments = {'foo': 'bar'};
+      final currentRoute = route(RouteSettings(
+        name: 'Current Route',
+        arguments: arguments,
+      ));
+
+      final hub = _MockHub();
+      final span = MockNoOpSentrySpan();
+      when(span.status).thenReturn(null);
+      _whenAnyStart(hub, span);
+
+      final sut = fixture.getSut(hub: hub);
+
+      sut.didPush(currentRoute, null);
+
+      verify(span.setData('route_settings_arguments', arguments));
+    });
+  });
+
   group('RouteObserverBreadcrumb', () {
     test('happy path with string route agrument', () {
       const fromRouteSettings = RouteSettings(
@@ -142,16 +350,12 @@ void main() {
   });
 
   group('SentryNavigatorObserver', () {
-    PageRoute route(RouteSettings? settings) => PageRouteBuilder<void>(
-          pageBuilder: (_, __, ___) => Container(),
-          settings: settings,
-        );
-
     RouteSettings routeSettings(String? name, [Object? arguments]) =>
         RouteSettings(name: name, arguments: arguments);
 
     test('Test recording of Breadcrumbs', () {
       final hub = MockHub();
+      _whenAnyStart(hub, NoOpSentrySpan());
       final observer = fixture.getSut(hub: hub);
 
       final to = routeSettings('to', 'foobar');
@@ -173,6 +377,7 @@ void main() {
 
     test('No arguments', () {
       final hub = MockHub();
+      _whenAnyStart(hub, NoOpSentrySpan());
       final observer = fixture.getSut(hub: hub);
 
       final to = routeSettings('to');
@@ -194,6 +399,7 @@ void main() {
 
     test('No arguments & no name', () {
       final hub = MockHub();
+      _whenAnyStart(hub, NoOpSentrySpan());
       final observer = fixture.getSut(hub: hub);
 
       final to = route(null);
@@ -236,6 +442,7 @@ void main() {
 
     test('route name as transaction', () {
       final hub = _MockHub();
+      _whenAnyStart(hub, NoOpSentrySpan());
       final observer = fixture.getSut(
         hub: hub,
         setRouteNameAsTransaction: true,
@@ -256,6 +463,7 @@ void main() {
 
     test('route name does nothing if null', () {
       final hub = _MockHub();
+      _whenAnyStart(hub, NoOpSentrySpan());
       final observer = fixture.getSut(
         hub: hub,
         setRouteNameAsTransaction: true,
@@ -272,6 +480,7 @@ void main() {
 
     test('disabled route as transaction', () {
       final hub = _MockHub();
+      _whenAnyStart(hub, NoOpSentrySpan());
       final observer =
           fixture.getSut(hub: hub, setRouteNameAsTransaction: false);
 
@@ -293,10 +502,12 @@ void main() {
 class Fixture {
   SentryNavigatorObserver getSut({
     required Hub hub,
+    bool enableAutoTransactions = true,
     bool setRouteNameAsTransaction = false,
   }) {
     return SentryNavigatorObserver(
       hub: hub,
+      enableAutoTransactions: enableAutoTransactions,
       setRouteNameAsTransaction: setRouteNameAsTransaction,
     );
   }
diff --git a/flutter/test/widgets_binding_observer_test.dart b/flutter/test/widgets_binding_observer_test.dart
index 501980701c..d92d0133e8 100644
--- a/flutter/test/widgets_binding_observer_test.dart
+++ b/flutter/test/widgets_binding_observer_test.dart
@@ -3,7 +3,6 @@ import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mockito/mockito.dart';
 import 'package:sentry_flutter/sentry_flutter.dart';
-import 'package:sentry_flutter/src/sentry_flutter_options.dart';
 import 'package:sentry_flutter/src/widgets_binding_observer.dart';
 
 import 'mocks.mocks.dart';