Hi
Whilst I can't say that is happening, it may help to follow these steps:
If you have not yet done so, also update your iPhone to the latest software:
Close certain apps and then restart (normally) both your iPhone and your Apple Watch:
- Close the Watch app, Activity app and Health app (if open) on your iPhone:
- Double-click the Home button, then swipe up on each app preview to close the apps.
- Close the Workout app, Activity app and Heart Rate app on your Apple Watch:
- Turn both devices off together, then restart your iPhone first:
If you have previously used any third-party fitness tracking, sleep tracking or heart rate monitoring apps, then check whether there is an active or paused session within any of them.
- If there is, then end that session from within that app on your Apple Watch.
- If in doubt, it may help to remove any such third-party apps from your Apple Watch, at least temporarily.
If the issue persists, then it may help to unpair and re-pair your Apple Watch:
If the issue persists, then I suggest that you contact Apple Support (remote diagnostics and/or mail-in service may be available, if required), make a Genius Bar reservation or visit an Apple Authorised Service Provider for assistance: