Description
The Apple Watch Ultra 4 is Apple's most capable smartwatch, built around a 49mm Grade 5 titanium case, the new S11 chip and a bright Always-On Retina display protected by sapphire crystal. Its biggest step forward is battery life, now rated at up to 50 hours in normal use, alongside a new Health Sensing System and readiness score. It ships with watchOS 27 and pairs with iPhone 11 or later running iOS 27 or later.
Highlights
- Longer battery life. Rated at up to 50 hours in normal use and 84 hours in Low Power Mode. Fifteen minutes of fast charging gives up to 18 hours of use.
- Built for demanding conditions. The Grade 5 titanium case is WR100 rated for recreational scuba diving to 40 metres, IP6X dust resistant and tested to MIL-STD 810H.
- Advanced health tracking. The new Health Sensing System measures heart rate and HRV more often, and a new readiness score has been added.
- Navigation and safety. Dual-frequency GPS, the customisable Action button and satellite safety features support outdoor training and adventure.
- Works with your existing bands. All existing Ultra bands in 44, 45, 46 and 49mm sizes still fit.
Specifications
| Model | Apple Watch Ultra 4 |
|---|---|
| Case | 49mm Grade 5 titanium |
| Dimensions | 49 x 44 x 12mm |
| Display | Wide-angle LTPO3 Always-On Retina, 422 x 514 pixels, up to 3,000 nits |
| Display cover | Sapphire crystal |
| Chip | Apple S11 |
| Storage | 64GB |
| Battery life | Up to 50 hours normal use; 84 hours Low Power Mode |
| Workout tracking | Up to 45 hours; continuous GPS workout up to 18 hours |
| Fast charging | 15 minutes gives up to 18 hours of use |
| Connectivity | GPS + Cellular (eSIM), 5G capable, satellite features |
| Water resistance | WR100, recreational scuba diving to 40m |
| Dust resistance | IP6X |
| Durability | Tested to MIL-STD 810H |
| Operating system | watchOS 27 |
| Compatibility | iPhone 11 or later with iOS 27 or later |



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