Apple Watch is a smartwatch which can connect with your iPhone, making it possible to use your Apple smart Watch to do all sorts of things like make calls, send and receive texts, make payments, track your exercise, and more.
Smartwatch Pairing
Connect and share allowances between your iPhone and Apple Watch. Get 6 months free pairing on a 24-month Smartwatch Pairing plan.
All our Apple Watch plans
Buy your new Apple Watch on Three and pair it with iPhone 6s or later models for the ultimate connectivity. If you’re new to Three or you don’t have a compatible iPhone, you can buy or upgrade to a new iPhone with us and add Apple Watch to your Pay Monthly plan.
Apple Watch Series 10 (GPS + Cellular)
Biggest display. Thinnest design. Ever.
- Advanced health insights. Track your heart rate, sleep and more
- A powerful fitness partner on your wrist. Comes with 3 months of Apple Fitness+ free¹
- Incredible durability – crack resistant, IP6X-certified dust resistant, and swimproof with 50m water resistance²
Apple Watch Ultra 2 (GPS + Cellular)
New finish. Never quit.
- Rugged titanium case, now available in satin black • Up to 36 hours of battery life
- Up to 36 hours of battery life and 72 hours in Low Power Mode³
- Biggest, brightest display yet
If your Apple Watch is Cellular + GPS, you can connect your Apple Watch to your iPhone on Three and share your plan allowances with our Smartwatch Pairing plan.
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Got your Apple Watch sorted?
If your Apple Watch is Cellular + GPS, it’ll have an Apple Watch eSIM, which means you can pair it with your Three iPhone.
Need an iPhone that works with your Apple Watch?
Choose from a range of smartwatch-compatible iPhones, and find an iPhone deal that’s right for you.
*Apple Watch requires iPhone 6s or later with iOS 15 or later to work alongside our Smartwatch Pairing Plan.
News and articles
Need more information before you decide on your Apple Watch? Find out about Smartwatch Pairing.
Frequently asked questions
There are 2 versions of Apple Watch: Apple Watch GPS and Apple Watch cellular + GPS. You’ll need the cellular version if you want to call and text when you don’t have your iPhone with you. You can buy GPS + cellular Apple Watch on Three. We sell the latest Apple Watch Series 10 and Apple Watch Ultra 2, Apple Watch Series 9, and Apple Watch SE.
Apple Watch cellular + GPS will automatically connect to the nearest Wi-Fi. That will enable you to use it to call, text and use data. If you want to be able to leave your phone at home and still enjoy these features, you need our Smartwatch Pairing Plan.
No, you don’t need an Apple Watch SIM as it has an eSIM built into it. An eSIM is a virtual SIM card that’s embedded into a device. If you buy our Smartwatch Pairing Plan, you can connect your Apple Watch to our network and pair it with your phone.
If you’ve got a Smartwatch Pairing Plan with us, your Apple Watch will automatically switch to the Three network. If it doesn't, follow the steps in the question below.
It’s simple to pair your Apple Watch with your iPhone. Firstly, make sure you have an iPhone 6S or newer, with iOS 15 installed.
Make sure your iPhone has Bluetooth turned on, and that it's connected to Wi-Fi or a mobile network.
- Turn on your Apple Watch
- Press and hold the side button until you see the Apple logo
- Place your iPhone near your Apple Watch and wait for the Apple Watch pairing screen to appear on your iPhone
- Tap Continue
- You should then follow the on-screen instructions to set up the cellular service by logging in with your My3 account details.
No, you can’t pair an Android device with Apple Watch. You’ll need an iPhone 6S or newer to pair your phone with your Apple Watch. If you’ve got a Samsung phone and would like to add a cellular smartwatch to your plan, take a look at our range of Samsung Galaxy Watches.
New customers can add an Apple Watch to their contract by choosing one of our Three Your Way plans. Existing customers can also buy an Apple Watch and add it to their account. You can do this by contacting our Contact Centre, visiting one of our stores, or by using our website.
Yes, if you’re an existing customer with iPhone 6S or above, you can add an Apple Watch to your existing plan with Smartwatch Pairing.
It depends whether you prefer a larger or smaller watch face.
Apple advises that the smaller options are generally more comfortable for smaller wrists, but it’s worth remembering that Apple Watch is a touchscreen, and you’ll need to read texts and alerts on the display.
Although the larger versions might weigh a few grams more, they’ve got more pixels, and the text appears slightly larger in some places.
Here are the size details:
Apple Watch Series 10
This comes in 2 sizes - 42mm high and 46mm high. The 42mm device has around 374 x 446 pixels, and the 46mm holds 416 x 496 pixels. In terms of width, the 42mm version is 36mm wide and the 46mm is 39mm wide.
If you’re on a Three Your Way plan you can add Apple Watch Series 10 to your contract. Check online or ask in-store for details.
Apple Watch Ultra 2
Apple Watch Ultra 2 is 49mm high and the display has around 410 x 502 pixels.
If you’re on a Three Your Way plan you can add Apple Watch Ultra 2 to your contract. Check online or ask in-store for details.
Apple Watch SE
This comes in 2 sizes - 44mm and 40mm high. The 44mm device has around 448 x 368 pixels, and the 40mm holds 394 x 324 pixels. In terms of width, the 44mm version is 38mm wide and the 40mm is 34mm wide.
If you’re on a Three Your Way plan you can add Apple Watch SE to your contract. Check online or ask in-store for details.
Apple Watch Series 2 and later have a water-resistance rating of 50 metres under ISO standard 22810:2010.
Apple Watch Ultra and later have a water-resistance rating of 100 metres under ISO standard 22810:2010 and are EN13319-compliant.
Apple Watch Series 7 and later are rated IP6X dust resistant. Apple Watch Ultra and later are rated IP6X dust resistant.
Put simply, 1st Generation Apple Watch models aren’t built to be submerged in water, but Apple Watch 2 and above are ok to be used in shallow water like swimming in a pool.
The latest Apple Watch models are Apple Watch Series 10 and Apple Watch Ultra 2 which all launched in September 2024.
Yes, if you’ve got the Sleep app on Apple Watch, your watch will be able to tell you roughly how well you slept, how long you slept for, and what your sleep patterns are.
With the latest Apple Watch Series 10 and Apple Watch Ultra 2 you can track sleep and even get notifications if signs of sleep apnoea are detected.⁴
Why choose Three?
Based on analysis by Ookla® of Speedtest Intelligence® data for Q3-Q4 2024. Ookla trademarks used under license and reprinted with permission.
¹ Offer available to new subscribers who purchase an eligible device after 7 September 2022. [Local Pricing]/month after trial. Only one offer per Apple Account and only one offer per family if you’re part of a Family Sharing group, regardless of the number of devices you or your family purchases. This offer is not available if you or your family have previously subscribed to Apple Fitness+. Offer valid for three months after eligible device activation. Plan automatically renews until cancelled. Restrictions and other terms apply.
² Apple Watch Series 10 has a water resistance rating of 50 metres under ISO standard 22810:2010. This means it may be used for shallow-water activities like swimming in a pool or ocean. Apple Watch Series 9 should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth. Water resistance is not a permanent condition and can diminish over time. For additional information, see support.apple.com/HT205000. Apple Watch Series 9 is also rated IP6X dust resistant.
³ Battery life varies by use and configuration. See apple.com/uk/batteries for more information.
⁴ The Sleep Apnoea Notification Feature is available on Apple Watch Series 9 and later and Ultra 2. It is intended to detect signs of moderate to severe sleep apnoea for people 18 years old or older without a diagnosis of sleep apnoea.