Features
Apple Watch Series 3 with cellular
Elevated in every way.
Smart activity coaching. An enhanced Heart Rate app. Your favourite playlists right on your wrist. A built-in altimeter. And a more powerful processor that lets Siri speak to you. Apple Watch Series 3. Now you can be more active, motivated and connected than ever.1
Ultimate Sports Watch
Take your
workouts further.
GPS and Altimeter
See how far and high you go.
Music
Stream 45 million songs with Apple Music right from your wrist.2
Swimproof
Always ready for the pool or ocean.3
Workout App
Track a casual walk, an intense ride and everything in between.
Intelligent Activity Tracker
Three rings.
One goal.
Move, Exercise, Stand
Make closing all three Activity rings your goal each day.
Smart Coaching
A nudge when you need it.
Activity Sharing
Stay motivated by competing with and cheering on your friends.
Achievements
Apple Watch celebrates each milestone with you.
Powerful Health Tool
Keep your body top of mind.
Heart Rate App
Keep tabs on your resting, walking and workout recovery heart rate.
Breathe App
Quiet your mind. Relax your body.
Third-Party Health Apps
Drink more water. Improve your sleep. Be a healthier you.
Health App on iPhone
One app for all your health and fitness data.
All-Day Assistant
Run your day.
Right from your wrist.
Phone and Messages
Send messages, make calls, get meeting invitations.
Siri
Siri is faster and smarter. And speaks from your watch.
Watch Faces
All kinds of faces. All customisable.
Apps and Notifications
Never miss what matters.
Reviews
Why O2?

Get help with your device.
Find the answers to your questions on our help and support pages. Get help with your device, O2 account and more.

It’s good to be back.
From unique prize draws to unforgettable moments, Priority gives you invite-only access to gigs, perks and experiences.

Manage your account 24/7.
Keep an eye on your bills and data usage and add a Bolt On if you need it. Get an upgrade, make a bill payment or top up your credit. You can do all this and more, wherever you are, with My O2. Sign in online or get the free My O2 app.
FAQs
- What are the Apple Watch Series 3 specs? Collapsed link
With Apple Watch Series 3 you can stay connected with just your watch. Send and receive texts, make and answer calls, receive notifications and stream music.
The Gyroscope app tracks your health and the optical heart sensor alerts you if your heart rate is too low or high.
This model has a Sport Band, designed for being active - it is durable, yet comfortable against the skin.
The watch has a water resistant rating of up to 50 metres.
- Is the Apple Watch Series 3 waterproof with the Sport Band? Collapsed link
Apple Watch Series 3 is water resistant for up to 50 meters, meaning this model is ideal for shallow water activities.
The Sport Band strap that comes with it is the best strap for water resistance.
- What iPhone is compatible with Apple Watch Series 3? Collapsed link
The Apple Watch Series 3 is compatible with the iPhone 6s and newer models that have iOS 13 or later.
- What is the Apple Watch Series 3 storage capacity? Collapsed link
The storage capacity of Apple Watch Series 3 is 8GB, enough to store 200 songs, and 75MB of photos.
- What is the Apple Watch battery life like on the Series 3 model? Collapsed link
The battery life of the Apple Watch Series 3 lasts up to 18 hours after a full charge.
- Is there an Apple Watch pay monthly option available? Collapsed link
Yes. Spread the cost over a series of months with Apple Watch 0% finance options at O2.
The legal bit
Terms and conditions
- Irregular rhythm notification requires the latest versions of watchOS and iOS. It is not intended for use by people under 22 years old or those who have been previously diagnosed with atrial fibrillation (AF).
- ISO standard 22810:2010. Designed for shallow-water activities like swimming. Submersion below shallow depth and high-velocity water activities not recommended.
- To use Emergency SOS, your iPhone needs to be nearby. If your iPhone isn’t nearby, your Apple Watch needs to be connected to a known Wi-Fi network and you must set up Wi-Fi Calling