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Apple Watch Series 12 and Ultra 4 Launch with Advanced Health Sensors

hodinkee.com — September 9, 2026 at 09:01 PM UTC

Apple announced the Apple Watch Series 12 and Ultra 4 at an event in Cupertino, featuring new health sensors and software but no major physical redesign. The watches are available for pre-order today, with general release on September 18th. The Series 12 introduces a Health Sensing System with the S11 chip, taking heart rate readings every five seconds and measuring HRV more frequently, which Apple claims is the most accurate wearable heart rate sensor. A new Readiness score (0-10) updates throughout the day, and battery life remains 24 hours for daily use, with outdoor tracking improved to 10 hours. New ceramic options in pearl white and night blue are available, alongside aluminum and titanium cases. The Ultra 4 keeps last year's 3D-printed titanium case but adds the same health system and Readiness score, with battery life extended to 50 hours for daily use and up to 45 hours in a new Max Extended Workout mode. Pricing starts at $399 for aluminum Series 12, $699 for titanium, and $899 for ceramic, with a Hermès Ultra 4 option at $2,199.

With a significance score of 1.5, this news ranks in the top 38% of today's 33866 analyzed articles.

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