- TURN ON WATCH:Â Press and hold the Power/Home button until the screen lights up and the Samsung logo is displayed.
Note: If you are unable to turn your device on, plug the device into a power source for 15 minutes and then try again. For information on charging your device, see the Charge the Battery tutorial. The SIM comes preinstalled and cannot be removed. - TURN OFF WATCH: Press and hold the Power/Home button.
- Select Power off.
Note: If you are unable to power your device off or if it becomes unresponsive, press and hold the Power/Home button for 10 seconds, until it reboots.