Apple Watch Series 12 and Ultra 4 add new health detection system

heise.de (German)

Apple introduced the Apple Watch Series 12 and Ultra 4 at its iPhone event, featuring a new chip and redesigned health sensors for enhanced continuous health monitoring. Both watches include the new S11 chip and an upgraded sensor array, enabling continuous heart rate tracking every five seconds via larger green LEDs, plus a real-time heart rate complication. A new "Readiness" feature scores daily fitness from 0 to 10. The Readiness score analyzes activity, training load, and vital/sleep data to offer recovery recommendations, with algorithms developed using Apple Heart and Movement Study data. The watches retain their previous designs and sizes.


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