Phones
Tablets, laptops and dongles
SIMs and Tariffs
Accessories and more
O2 for you
Saving you money
Perks and rewards
Stay connected
Live bigger with Volt
See all the reasons to choose O2
Help and support
Most popular
Useful links
Contact us
If your Apple Watch gets slow, there may be several causes of the problem.
Press and hold the Digital Crown.
Simultaneously, press and hold the Side button until your Apple Watch is restarted.
