How to factory reset Apple Watch

Before doing a factory reset with your Apple Watch, make sure to back it up if you want to restore your data on a new watch. If you backup your iPhone with iCloud or a Mac, an Apple Watch backup is automatically created. Keep in mind that iPhone backups on Mac need to be encrypted for all data to be saved for Apple Watch.

How to factory reset Apple Watch
Reset Apple Watch with your iPhone
Make sure your Watch is nearby your iPhone it’s paired with and open the Watch app

Swipe down and choose General
Swipe to the bottom and tap Reset
Tap Erase Apple Watch Content and Settings
Tap Erase All Content and Settings two times to confirm
If you have a cellular Apple Watch, you’ll need to choose whether to keep or remove the plan (still a good idea to double-check with your carrier that it was successfully canceled)

Factory reset directly on Apple Watch

Open the Settings app on your Apple Watch
Tap General
Swipe down to the bottom and tap Reset
Tap Erase All Content and Settings
If you’re using a passcode, enter it when prompted
Swipe down and tap Erase All or Erase All & Keep Plan if you have a cellular watch

Forgot your passcode?
You can also reset your Apple Watch if you can’t remember your passcode. Follow these steps: