To reset an Apple Watch, open the Watch app on the connected iPhone and tap on "All Watches." Tap the "i" icon next to the watch in the menu followed by "Unpair Apple Watch." You'll be asked for your Apple ID password to remove Activation Lock. Or is it time to upgrade? Check out our tutorial on how to reset the Apple Watch. Works on both Series 1, 2 a Start by opening the Apple Watch app on your iPhone. 2. When on the 'My Watch' tab, tap 'All Watches' in the top-right corner. 3. From here, tap the 'i' icon next to the Apple Watch you wish to reset. Press and hold the side button until you see the Power Off slider on the screen. Drag the Power Off slider with your finger. Once your Apple Watch has turned off, press and hold the side button ZoLvS.