To reset your Amazfit smartwatch, tap on the side button to wake up the watch. Then scroll up to go to Settings > System > Factory Reset. You’ll be presented with a warning that factory resetting your Smartwatch will wipe out all data on the watch. However, your historical data is stored on the cloud and can be accessed from the Amazfit Zepp smartphone App. After the reset, you’ll have to set up the watch afresh with your phone as if it was new.