Phones
Tablets, laptops and dongles
SIMs and Tariffs
Accessories and more
Flexibility
Perks
Services
Connected
Live bigger with Volt
See all the reasons to choose O2
Top queries
Device help
Managing your account
Other ways to get help
See how to turn your Apple Watch on and off.
Press and hold the Side button until your Apple Watch is turned on.
Press and hold the Side button.
Press the power off icon.
Press and drag the power off icon right.