Sure, you can always swipe down from the top of the Apple Watch screen, tap each notification individually, and then choose to Dismiss them one by one, but there is a better solution if you’re aiming to quickly clear out all notifications on the Apple Watch. Instead of manually dismissing them, you’ll use the Apple Watch Force Touch display to summon a lesser known Clear All function.
The Clear All Notifications feature is easily accessed on Apple Watch, available when the little red notification dot is visible at the top of the screen:
1. Swipe down from the top of the Watch face to access notifications as usual
2. Tap and press firmly to initiate a Force Touch on the Notifications screen, then tap on “Clear All” when it appears
Choosing Clear All will instantly dismiss all notifications on Apple Watch, preventing you from having to manually clear each one.