How to reset apple watch to sell?

Hook your Apple Watch up to the charging cable and then press and hold the side button on the watch until the Power Off menu comes up. Press and hold the on screen “POWER OFF” button until the “Erase all contents and settings” screen pops up. read more

If you find yourself needing to reset an Apple Watch to factory default settings, perhaps to erase personal data from it, to start fresh, for troubleshooting purposes, lending to someone else, for resale, or whatever else, you’ll discover the entire procedure is performed on the Apple Watch itself. read more

On your Apple Watch, tap Settings > General > Reset > Erase All Content and Settings. For Apple Watch Series 3 (GPS + Cellular), choose to keep or remove your cellular plan. If you want to pair your Apple Watch and iPhone again, keep your plan. read more

Open the Apple Watch app on your iPhone. Go to the My Watch tab and tap your watch at the top of the screen. Tap next to the watch that you want to unpair. Tap Unpair Apple Watch. For Apple Watch Series 3 (GPS + Cellular), choose to keep or remove your cellular plan. If you want to pair your Apple Watch and iPhone again, keep your plan. read more