Can't stop alerts

Hi

How notifications behave depends on the status of your devices and your settings. With Wrist Detection enabled, in order to bring notifications to your attention as soon as possible:

• If your iPhone is unlocked, you will receive notifications on your iPhone instead of on your watch.
• If your iPhone is locked or asleep and your watch is unlocked (regardless of whether the watch screen is asleep or awake) and on your wrist, you will receive notifications on your watch.
• If your watch is locked or has Do Not Disturb enabled, notifications will go to your iPhone.

More information:

Notifications on your Apple Watch - Apple Support

If you turn off Wrist Detection (on your iPhone, in the Watch app, go to: My Watch > General > Wrist Detection), all notification alerts will be delivered to both devices.

However, you will then not be able to benefit from features including Apple Pay and a single unlock after placing your watch on your wrist.

The following steps may help:

On your iPhone, in the Watch app, go to: My Watch (tab) > Mail > choose Custom > turn off Show Alerts.

Close the Watch app and then restart both your iPhone and your watch:

• To close the Watch app on your iPhone, double-click the Home button, then swipe up on the Watch app preview.
• Turn both devices off together, then restart your iPhone first;
  • Restart your iPhone, iPad, or iPod touch - Apple Support
  • Restart your Apple Watch - Apple Support

If the issue persists, it may help to unpair and re-pair your watch:

• The Watch app on your iPhone takes a backup of your watch automatically when unpairing via the app. Choose to Restore from Backup during set up. Most data and settings will be restored, with some exceptions (eg Apple Pay cards, passcode).
• Unpair your Apple Watch and iPhone - Apple Support
• Set up your Apple Watch - Apple Support