Description
Apple Watch Ultra 4: what you need to know
The Apple Watch Ultra 4 is Apple’s sports and adventure watch, with a 49mm Grade 5 titanium case, a flat sapphire front and the S11 chip. Apple says it has the longest battery life of any Apple Watch, and it supports satellite Emergency SOS and Find My.
Who it suits
It suits iPhone users who run, hike, dive recreationally or train for endurance events. This GPS + Cellular model can connect to a mobile network without the phone nearby.
Key facts
- 49mm Grade 5 titanium case, 63.1g in Black
- Always-On Retina wide-angle OLED display, up to 3,000 nits, flat sapphire crystal
- S11 SiP with 64GB storage
- Up to 50 hours of normal use, or 84 hours in Low Power Mode
- Water resistant to 100m (ISO 22810:2010), recreational scuba diving to 40m with a compatible app
- Cellular, satellite Emergency SOS and Find My, dual-frequency GPS
- Fast charge to 80% in about 45 minutes
Buying it in the UK
UK retailers list the Apple Watch Ultra 4 49mm GPS + Cellular at £749 (checked 29 October 2026). Our price is £713.95.
Our price includes UK import duty and VAT, so there is nothing more to pay when it arrives. Your estimated delivery dates are shown near the top of this page.
Apple Watch Ultra 4 is Apple’s rugged 49mm titanium smartwatch with the S11 chip, an Always-On Retina display with up to 3,000 nits peak brightness, precision dual-frequency GPS and 5G (RedCap) / LTE cellular. It offers up to 50 hours of normal use (up to 84 hours in Low Power Mode), 100m water resistance with recreational scuba diving to 40m, satellite Emergency SOS and the full Apple health sensor suite.
International version – please read
- This is an international model, not the UK version. Cellular works with UK networks that support Apple Watch (eSIM).
Specifications
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| Case size | 49mm (49 x 44 x 12 mm) |
| Case material | Grade 5 titanium (Natural or Black finish) |
| Weight | Natural 63.0g / Black 63.1g (case) |
| Display | Always-On Retina, wide-angle OLED, LTPO3, 1Hz refresh; 422 x 514 pixels, 326ppi; 1,245 sq mm |
| Brightness | Up to 3,000 nits peak, 1 nit minimum |
| Cover | Flat sapphire crystal |
| Chip | S11 SiP, 64-bit dual-core, 4-core Neural Engine |
| Storage | 64GB |
| Sensors | Electrical heart sensor (3rd gen), optical heart sensor, blood oxygen, temperature, depth gauge, water temperature, compass, always-on altimeter, high-g accelerometer, gyroscope, ambient light |
| Cellular | Model A3579: 5G NR RedCap and LTE (FDD-LTE bands 1/2/3/4/5/7/8/12/13/14/17/18/19/20/25/26/28/66/71) |
| Wi-Fi / Bluetooth | Wi-Fi 4 (802.11n) 2.4/5GHz; Bluetooth 5.3 |
| GPS | Precision dual-frequency GPS (GPS, Galileo, QZSS, BeiDou) |
| Other connectivity | Second-generation Ultra Wideband; Apple Pay; satellite Emergency SOS / Find My |
| Battery life | Up to 50 hours normal use; up to 84 hours Low Power Mode |
| Charging | Fast charge: up to 80% in about 45 minutes |
| Water / dust resistance | 100m (ISO 22810:2010); EN13319 dive to 40m; IP6X dust |
| Ruggedness | Tested to MIL-STD 810H |
| Audio | Three-mic array, dual speakers, 86dB siren |
| Controls | Action button, Digital Crown with haptics, side button, double tap / wrist flick gestures |
| Operating system | watchOS |
| Fits wrists | 130-210mm |
| Case finish | Black titanium |
What’s in the box
- Apple Watch Ultra 4
- Strap (Ocean Band)
- Apple Watch Magnetic Fast Charger to USB-C Cable (1m)
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