Image: Apple · source
Apple Watch Ultra 4
The rugged watch moves to S11 with a 50-hour battery.
Overview
The fourth Ultra stays visually familiar, with its 49 mm titanium case, flat sapphire display and orange Action Button. What changes is the endurance: Apple rates normal use at up to 50 hours, and 84 hours in Low Power Mode, with a Max Extended Workout mode that stretches to 45 hours of tracking.
The S11 chip and 64 GB of storage run the latest watchOS 27 features, while the Health Sensing System offers frequent background heart readings. Fast charging reaches 80 percent in about 45 minutes, and a 15-minute top-up supplies roughly 18 hours of use.
It remains certified for 100 metres and recreational diving to 40 metres, and the case uses recycled titanium. 5G cellular and satellite emergency features carry over from the earlier model. Only the Ultra has the Action Button, so some workout shortcuts remain exclusive to it.
Why it mattered
Extends the Ultra's lead in battery life, reaching about two days between charges.
At a glance
- Announced
- September 9, 2026
- Released
- September 18, 2026
- Launch price
- $799
- Chip / processor
- Apple S11
- Display
- 1.97"
- Storage
- 64GB
- Status
- Available
Highlights
- Up to 50 hours battery
- S11 chip and 64GB storage
- 3,000-nit flat sapphire display
- Action Button and 100 m rating
- 5G and satellite connectivity
Tech specs
Specifications as published at launch. Some values (like battery life) are manufacturer estimates.
Display
- Case sizes
- 49 mm
- Type
- Always-On wide-angle LTPO3 OLED Retina, flat sapphire
- Brightness
- 3,000 nits peak
- Resolution
- 422 x 514
Chip
- Chip
- Apple S11 64-bit dual-core with 4-core Neural Engine
Memory
- Storage
- 64GB
Health
- Sensors
- Second-generation electrical heart sensor, always-on optical heart sensor, blood oxygen, temperature sensor, depth gauge, water temperature sensor, always-on altimeter, compass
Battery
- Battery life
- Up to 50 hours (84 hours in Low Power Mode)
- Charging
- About 80% in 45 minutes
Connectivity
- Cellular
- 5G (RedCap) and LTE (all models)
- Wi-Fi
- Wi-Fi 4 (802.11n, 2.4 and 5 GHz)
- Bluetooth
- Bluetooth 5.3
- GPS
- Precision dual-frequency GPS
- Satellite
- Emergency SOS and Find My via satellite
Design
- Materials
- Recycled titanium case, flat sapphire crystal
- Water resistance
- 100 metres; recreational diving to 40 metres
- Dimensions
- 49 x 44 x 12 mm
- Weight
- 63.0 g (Natural), 63.1 g (Black)
- Durability
- MIL-STD 810H tested
Software
- Launch OS
- watchOS 27
