Personal | Business

Sign in or Register

Shop
Phones
Phones
Upgrades
Apple iPhone
iPhone 16
Android phones
Refurbished phones
Tablets, laptops and dongles
Tablets
Apple iPad
Android tablets
Laptops
Dongles and mobile WiFi
SIMs and Tariffs
Pay Monthly SIMs
Pay As You Go SIMs
Tariffs
International
Top-up
Essential Plan
Accessories and more
Tech and accessories
Apple Watch
Smartwatches
AirPods
Great deals
Summer Sale
Why O2
O2 for you
Flexible tariffs
Upgrade with O2 Switch Up
Fair Deal for O2 customers
Peace of mind with O2 Insure
Tech news and inspiration
Saving you money
Data rollover
Sell with O2 Recycle
Auto-save plans
Multisave discounts
Virgin Media and O2 benefits
Perks and rewards
Priority Tickets and offers
Pick your O2 Extras
Collect Airtime Rewards
Perks at O2 venues
Pay As You Go Rewards
Stay connected
Travel with EU roaming
Check your coverage
Our cutting-edge network
5G is here
Free O2 WiFi hotspots
Live bigger with Volt
Discover extra benefits
See all the reasons to choose O2
Why join O2?
Help
Help and support
Account
Products and services
Device guides
Network and international
Safety and security
Most popular
Activating your SIM
eSIM
How to track your order
Payment support
Understanding your bill
Useful links
Store locator
Network status
Faulty device
Virgin Media O2
Fraud help
Contact us
O2 Community
My O2 App
Contact us

My O2
Search
Basket

Help
Device Help
Samsung
Galaxy Watch8 Classic
Set up and first use
Turn your smartwatch on and off

How to turn your Samsung Galaxy Watch8 Classic on or off

See how to turn your smartwatch on and off.

Press and hold the Home key until your smartwatch is turned on.

Press and hold the Home key until your smartwatch is turned on.

Press and hold the Home key until your smartwatch is turned on.

Slide your finger downwards starting from the top of the screen.

Slide your finger downwards starting from the top of the screen.

Slide your finger downwards starting from the top of the screen.

Press the power off icon.

Press the power off icon.

Press the power off icon.

Press the power off icon.

Press the power off icon.

Press the power off icon.

Slide 1 is active

Find a store
Check our network
Sign in to My O2
Track my order
Search

Popular in shop

iPhone 16 Pro Max
iPhone 16 Pro
iPhone 16
Apple Watch Series 10
Apple iPad A16
Samsung Galaxy S25 Ultra
Samsung Galaxy S25
Samsung Galaxy Z Flip7
Google Pixel 9 Pro XL
Google Pixel 9 Pro
SIM Only Deals
Virgin Media broadband deals

Help and Support

Help home
Contact us
My O2
Collection and delivery

Shop

Phones
Tablets
Pay Monthly SIM
Pay As You Go SIM
Virgin Media O2 Joint Venture

Facebook
Youtube
X
Instagram

About O2
Better Connections Plan
Careers
News & PR
Sponsorship
Virgin Media and O2

Accessibility
Terms & Conditions
Privacy policy
Cookie policy
Modern Slavery Statement

©2025 Telefonica UK Limited

In relation to consumer credit, Telefónica UK Limited is authorised and regulated by the Financial Conduct Authority (Reference Number 718822)