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Apple Watch Ultra 4 hands-on: Longer battery, sharper heart tracking, new health tools

tomsguide.com — September 9, 2026 at 11:01 PM UTC

Apple unveiled the Apple Watch Ultra 4 on September 9, 2026, featuring a redesigned health sensor system, improved battery life, and new AI-powered tools, with preorders opening immediately and retail availability set for September 18. The Ultra 4 maintains the same titanium design and display as its predecessor but upgrades its processor to the S11 chip, boosts battery life from 42 to 50 hours, and samples heart rate 60 times more frequently. New health metrics include a daily Readiness Score and Health Age, while Siri AI adds features like Live Rewind and Siri Recap. Priced at $799, the watch offers 18 hours of GPS workout tracking or 45 hours in a new Max Extended mode. However, a redesigned Health app with long-term trend reporting won't arrive until later this year, and the reviewer advises waiting for full testing before purchasing.

With a significance score of 1.6, this news ranks in the top 35% of today's 33866 analyzed articles.

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