diff --git a/.github/actions/test-ios-rntester/action.yml b/.github/actions/test-ios-rntester/action.yml
index d11790ca3d3306..c500f0ef2cd729 100644
--- a/.github/actions/test-ios-rntester/action.yml
+++ b/.github/actions/test-ios-rntester/action.yml
@@ -118,16 +118,7 @@ runs:
         bundle install
         bundle exec pod install
     - name: Build RNTester
-      if: ${{ inputs.run-unit-tests != 'true' && inputs.run-e2e-tests == 'false' }}
       shell: bash
-      run: |
-        xcodebuild build \
-          -workspace packages/rn-tester/RNTesterPods.xcworkspace \
-          -scheme RNTester \
-          -sdk iphonesimulator
-    - name: Build RNTester (E2E Tests)
-      shell: bash
-      if: ${{ inputs.run-e2e-tests == 'true' }}
       run: |
         xcodebuild \
           -scheme "RNTester" \
diff --git a/.github/workflows/test-all.yml b/.github/workflows/test-all.yml
index 508865cc311b37..3a49ebea3a550b 100644
--- a/.github/workflows/test-all.yml
+++ b/.github/workflows/test-all.yml
@@ -169,6 +169,14 @@ jobs:
       matrix:
         jsengine: [Hermes, JSC]
         architecture: [NewArch, OldArch]
+        flavor: [Debug, Release]
+        exclude: # We don't want to test the Old Arch in Release for E2E
+          - jsengine: Hermes
+            architecture: OldArch
+            flavor: Release
+          - jsengine: JSC
+            architecture: OldArch
+            flavor: Release
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -181,6 +189,7 @@ jobs:
           use-frameworks: StaticLibraries
           hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
           react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
+          flavor: ${{ matrix.flavor }}
 
   test_e2e_ios_rntester:
     if: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}