Anti-theft: Apple Watch on watchOS 4

Devices with Apple watchOS 4 have anti-theft and may affect how you are able to master reset. To turn on or off the device anti-theft, you must unpair your Watch from your iPhone.



  • Unpairing will erase all data from your Watch.
  • When you unpair your device, your iPhone automatically creates a backup of your Watch.
  • Keep your Apple Watch and iPhone close together as you unpair them.
  • If your Apple Watch is unpaired while out of range of your iPhone, the backup won’t be created.


To unpair you Apple device, follow these steps:

  1. Open the Apple Watch app on your iPhone.
  2. Tap My Watch > Apple Watch, then tap Unpair Apple Watch.
  3. Tap again to confirm.
  4. Your Watch information is backed up to your iPhone, then the Watch is erased.