Apple Watch Ultra 4 Extends Battery to 50 Hours as £749 Upgrade Stays Modest
Updated
Updated · TrustedReviews · Oct 5
Apple Watch Ultra 4 Extends Battery to 50 Hours as £749 Upgrade Stays Modest
3 articles · Updated · TrustedReviews · Oct 5
Summary
Up to 50 hours of regular use and 18 hours of full-accuracy GPS make the Apple Watch Ultra 4 a clear endurance upgrade, though the review says it is not an essential jump for Ultra 3 owners.
A new health sensing system samples heart rate more frequently, enabling Readiness scores, HRV recovery insights and day-night Vitals views; testing found solid overall accuracy, with maximum heart rate still slightly underreported versus a chest strap.
The S11 chip also adds Audio Intelligence features including automatic sound recognition and faster Shazam, while Live Rewind and Siri Recap are still due later this year.
At £749, the 49mm titanium watch keeps the same basic design, remains iPhone-only and lands as Apple’s most capable smartwatch yet, but its familiar hardware and unfinished software features limit the upgrade case.