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Apple Watch Ultra 4 - Black - Ocean Band
Colour
Band size
Large Band fits 180–210mm wrists.
Medium Band fits 155–185mm wrists.
Small Band fits 130–160mm wrists.
The Apple Watch Ultra 4 is Apple's flagship rugged smartwatch, announced September 9, 2026, Comes in a 49mm titanium case (natural or black). It features the S11 chip, a 3000-nit sapphire display, dual-frequency GPS, dive computer, and satellite SOS. Key upgrades over the Ultra 3 include a new Health Sensing System (heart rate every 5 seconds), up to 50 hours battery life, a daily Readiness score, and Siri AI with Audio Intelligence features via watchOS 27.
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Get the highlights
- The longest battery life of any Apple Watch. Now with up to 45 hours of Max Extended Workout tracking
- All-new Health Sensing System delivers the most accurate heart rate sensing in a wearable.
- A new personal readiness score tells you whether to rest or put yourself to the test.
- More frequent heart rate variability, or HRV, readings help provide insights on stress and recovery.
- In the redesigned Health app, learn which habits are influencing your Health Age and how to improve them.
- Make every day more effortless with Siri AI.4 And seamless with Audio Intelligence, powered by the S11 chip.
- Apple Watch Ultra 4 features built‑in satellite communications that help you stay connected and safe off the grid.
