Early Verdict
The Apple Watch Ultra 4 boasts a redesigned health sensor system for improved continuous heart rate and heart rate variability tracking. It also features better battery performance (up to 48 hours per charge), new health metrics like a daily Readiness Score and Health Age, and a faster, more modern processor. There are also a lot of new Siri AI-powered features, including Live Rewind and Siri Recap. However, the overall design and display are a match with last year's model.
Pros
+S-11 series chip
+Improved continuous heart rate monitoring
