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Black / Black
Black / Black
Natural / Anchor Blue
Capacity:
64GB
Choose your plan
Unlimited
CLASSIC PLAN
-What's this?48 month contract
£1.00
UPFRONT
+
£22.75
MONTHLY
Total monthly cost increasing to:
From Apr 2027 bill
£23.50
From Apr 2028 bill
£24.25
Monthly cost breakdown:
£15.75 Device + £7.00 Airtime
Features
Tech Specs
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49mm
Smartwatch Screen Size
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Up to 24 hours
Battery Life
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5G
Data Connectivity
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61.8.9g
Weight
Brand:
Apple
Weight (g):
61.6g (Natural) / 61.8g (Black)
Battery (eComm):
Up to 24 hours of normal use
Processor:
S10 SiP
Dimensions (mm):
49 x 44 x 12mm
Screen Size (inches):
42mm
Standby Time (hrs):
Up to 36 hours
What's In The Box:
Apple Watch Ultra 3, Strap, Apple Watch Magnetic Fast Charger to USB-C Cable (1m)
Accessibility:
Yes
Internal Storage (GB):
64GB
Operating System (eComm):
watchOS
Water Resistance (IP Rating):
Yes - 50m
Removable battery:
No
Expandable Storage:
No
Facial Recognition:
No
Fingerprint Recognition:
No
GPS:
Yes
NFC (eComm):
No
Wi-Fi:
No
Dual Sim:
No
FM Radio:
No
Bluetooth:
Yes
Fast Charging:
Yes
Charger in box:
Yes
Wireless Charging (eComm):
Yes
Wi-Fi and 4G Calling:
No
Type Of Charger Connector:
USB-C magnetic fast charge
Music Player:
No
Why O2 ?
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Here to help you
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.
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Get Priority
From unique prize draws to unforgettable moments. Priority gives you invite-only access to gigs, perks and experiences.
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My O2
Check your bill, view your balance, add Bolt Ons and more. Anytime, anywhere.
FAQs
It was announced on 9 September, 2025 and launched on 19 September, 2025. Buy now on a Pay Monthly plan at O2.
Apple Watch Ultra 3 comes in a 49mm aerospace-grade titanium case with a choice of bands from S/M (130-200mm wrists) to M/L (140-245mm wrists).
Apple Watch Ultra 3 comes in a 49mm aerospace-grade titanium case with a choice of bands from S/M (130-200mm wrists) to M/L (140-245mm wrists).
Maximise performance for epic adventures in an Ocean Band and Trail Loop. Or, stand out in a sophisticated style with the stunning metal Milanese Loop.
Watch Ultra design is the epitome of durability and sophistication in two stunning finishes: Natural Titanium and Black Titanium.
Apple Watch Ultra 3 packs advanced tech into its rugged design. Experience 5G for faster connectivity, satellite communications for off-grid SOS, messaging and location sharing, and blood pressure (hypertension) trend detection for the first time on an Apple Watch. Powered to be even more efficient and responsive.
Built for performance and wellbeing, featuring advanced sensors for everything from running and cycling to open-water swimming, with precision dual-frequency GPS for accurate routes. Sleep tracking helps you understand time spent in each stage, from light sleep to REM. Advanced sleep scores rate your sleep quality. Protect your health with Crash Detection and Fall Detection, which can automatically alert emergency services if needed. And with Apple Intelligence, you’ll get smarter coaching prompts, personalised workout insights, and predictive health alerts. Watch Ultra 3 can even detect conditions like Sleep Apnoea to help prevent related diabetes and cardiac issues.
Workout Buddy is your AI health coach, offering feedback and motivation to take you to new heights in your journey to optimise wellness.
Almost. It’s water resistant to 100 metres and tested for diving up to 40 metres. Perfect for swimming, surfing, high-pressure water activities, or underwater exploration.
Experience the biggest and brightest screen yet. The 49mm x 44mm wide-angle OLED display offers a sharper 422 x 514 resolution and large screen area for better outdoor and indoor visibility. The ultimate companion for accessibility, workouts, maps, and everyday life.
Absolutely. Stream music, make calls, and receive notifications without your iPhone nearby on a cellular O2 plan.
Buy Apple Watch Ultra 3 right here at O2 on a flexible plan. Choose a Pay Monthly contract to unlock cellular connectivity and benefit from O2 perks from travel to entertainment.
The legal bit
Custom plans
Direct purchases only. Pay the cash price for your device or spread the cost over 3 to 36 months (excludes dongles). Certain device costs available to be spread over 3 to 48 months. The cost of your Device will be the same however long you choose. There may be an upfront cost. For customers who took out an O2 Refresh custom plan on or after 17 December 2021, your Airtime Plan and Device plans unlink after 24 months. This means that if you are in the first 24 months of your Device Plan you will have to pay off your Device Plan in full if you decide to end your Airtime Plan. After 24 months you can: keep your Airtime and Device Plans without changing anything Cancel your Airtime Plan and keep paying off your Device Plan instalments or, Cancel your Airtime Plan and pay off your Device Plan in full. For customers who took out an O2 Refresh custom plan before the 17 December 2021 the Airtime and Device Plans remain linked for the duration of the Device Plan, this means you will have to pay off your Device Plan in full if you decide to end your Airtime Plan at any point.
UK calls/texts to standard UK landlines and mobiles and when roaming in our Europe Zone. Fair Usage policy applies. Special and out of bundle numbers chargeable. 4G phone required to access 4G. 4G available in selected areas.
Change your airtime tariff after 30 days and then once every billing month during your minimum contract period, choosing from a selected family of tariffs. Some tariff extras are only available on the starting tariff, are not transferable, and may be lost if you change to an ineligible tariff. Devices are subject to availability.
0% APR. Finance subject to status and credit checks, 18+, Direct Debit. Credit provided by Telefonica UK Ltd, 500 Brook Drive, Reading, RG2 6UU, UK. Terms apply, see o2.co.uk/terms.
Get Unlimited Data
Unlimited Data available on O2 Custom Plans on selected handsets and selected SIM Only tariffs. Fair use policy applies, personal and non-commercial usage only. This policy asks that you only use our services or SIM cards for private, personal and legitimate consumer purposes, and not for business purposes. See more at www.o2.co.uk/fair-usage-policy. If you regularly use 650GB of data per month or tether 12 or more devices we may consider this to be non permitted use and have the right to move you to a more suitable plan. EU roaming capped at 25GB per month. For full terms see www.o2.co.uk/terms.
Subject to Annual Price Increase
Monthly price of your Airtime Plan will increase by £2.50 each April, except Data Only and Smartwatch Plans which will increase by 75p. Out of bundle charges increase by 5% every 1 April.