Description
Apple Watch Ultra 3: what you need to know
Apple Watch Ultra 3 is Apple’s outdoor and sports watch, with a 49mm Grade 5 titanium case and a flat sapphire crystal display. Apple rates it for up to 42 hours of normal use, or 72 hours in Low Power Mode.
Who it suits
Runners, hikers, swimmers and divers who want long battery life, dual-frequency GPS and a bright screen for outdoor use.
Key facts
- 49mm Grade 5 titanium case with flat sapphire crystal
- Always-On Retina display (LTPO3, wide-angle OLED), up to 3,000 nits
- S10 chip with 64GB storage
- Up to 42 hours of normal use; up to 72 hours in Low Power Mode
- Fast charge to 80% in about 45 minutes
- L1 and L5 dual-frequency GPS
- Water resistant to 100m (ISO 22810) and EN13319 rated for recreational scuba to 40m
Buying it in the UK
UK retailers list the Apple Watch Ultra 3 49mm GPS + Cellular with Milanese Loop at £749 (checked 15 October 2026). Our price is £718.95.
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.
The Apple Watch Ultra 3 is designed for athletes and outdoor enthusiasts who require maximum durability and functionality. The 49mm titanium case protects the advanced Always-On Retina display, which is optimized for readability even in harsh, direct sunlight or at night using a specialized Night Mode. The watch offers the best battery life of any Apple Watch, supporting multiple days of activity tracking. With 64 GB of storage, it can hold apps, music, and offline maps. The device includes advanced running metrics (running power, training load), specialized diving capabilities via the Oceanic+ app, and, for safety, satellite connectivity that enables messaging when outside of cellular range. The 5G cellular capability provides freedom from the iPhone for calls and data.
Specifications:
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| Network | GSM / HSPA / LTE / 5G 2G bands GSM 850 / 900 / 1800 / 1900 3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 4G bands 1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 5G bands SA/NSA |
| Speed | HSPA, LTE, 5G |
| Build | Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 5) |
| SIM | eSIM |
| Display Type | Retina LTPO3 OLED, 3000 nits (peak) |
| Size | 1.98 inches |
| Resolution | 514 x 422 pixels (~326 ppi density) |
| Protection | Sapphire crystal glass Wide-angle OLED |
| Operating System | watchOS 26, upgradable to watchOS 26.2.1 |
| Chipset | Apple S10 |
| CPU | Dual-core |
| GPU | PowerVR |
| Memory Card slot | No |
| Internal | 64GB |
| Camera | No |
| Loudspeaker | Yes, with dual speakers (86-decibel) |
| 3.5mm jack | No |
| WLAN | Wi-Fi 802.11 b/g/n, dual-band |
| Bluetooth | 5.3, A2DP, LE |
| Positioning | GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS |
| NFC | Yes |
| Radio | No |
| USB | No |
| Features | Accelerometer, gyro, heart rate, barometer, always-on altimeter (-500m to 9000m), compass, SpO2, VO2max, temperature (body), temperature (water) Temperature sensing (0.01? accuracy) Depth gauge (±1m accuracy) Ultra Wideband (UWB) support (gen2 chip) Emergency SOS via satellite IP6X certified 100m water resistant (22810:2010) 40m swimproof/diving (EN13319) MIL-STD-810H compliant ECG certified (region dependent SW application; HW available on all models) |
| Battery Type | Li-Ion 599 mAh |
| Charging | Wireless, 0-80% in 45 min |
| Dimensions | 49 x 44 x 12 mm (1.93 x 1.73 x 0.47 in) |
| Weight | 61.6 g or 61.8 g (black) (2.15 oz) |
Package Includes:
1 x Apple Watch Ultra 3 49mm (GPS+Cellular) (Natural Titanium Milanese Loop – L)
1 x 1-meter Apple Watch Magnetic Fast Charger to USB-C Cable
1 x Quick start guide
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