How do I force-quit an individual app on Apple Watch?
Solution 1:
For watchOS 3 and newer:
- Press and hold the Side Button
- Press and hold the Digital Crown
For watchOS 2:
When the app that you would like to terminate is open:
- Press and hold the Side Button and wait until the shut down screen appear. Then let go of the side button.
- Press and hold the Side button again until the home screen appears.
Your formerly active app has now been terminated.
PS: The Side Button is the button below the Digital Crown.