Find your version of the ECG app
Due to regulations in your country or region, ECG version 1 or ECG version 2 might not be available. Here's how you can verify which version of the ECG app you have on your Apple Watch or iPhone.
On your Apple Watch
- Open the Settings app.
- Tap Heart, then tap ECG.
Your ECG app version number is displayed.
On your iPhone
- Open the Health app.
- Tap the Browse tab, then tap Heart.
- Tap ECG, then tap About.
Your ECG app version number is listed in the About section next to Feature Version.