opens in new window PRESS RELEASE September 9, 2026 Introducing Apple Watch Series 12, with the all-new Health Sensing System Apple Watch Series 12 offers the most accurate heart rate sensing in a wearable, higher-frequency heart rate and HRV sensing, a readiness score, and Audio Intelligence features built with privacy at the core Apple Watch Series 12 delivers the most accurate heart rate sensing in a wearable, higher-frequency heart rate and heart rate variability sensing, and a readiness score. CUPERTINO, CALIFORNIA Apple today introduced Apple Watch Series 12 , engineered with advanced health sensors and all-new Apple silicon to deliver the most accurate heart rate sensing in a wearable, 1 and advanced health and fitness features. With the new Health Sensing System and S11 chip, Apple Watch Series 12 delivers higher-frequency heart rate and heart rate variability (HRV) measurements, which power an enhanced suite of health and fitness features including a new readiness score.…