Watch Series 12 GPS 46mm Black Aluminum Case w/ Black Sport Band M/L

Health Sensing System delivers the most accurate heart rate sensing. Get Personal readiness score. More frequent heart rate visibility or HRV readings for insights. Optical heart rate sensor enables high-frequency heart rate tracking every five seconds. Learn which habits are influencing your Health Age and how to improve. Siri AI and Audio Intelligence. Heath and fitness tracker with built-in safety features. S11 Chip. Up to 24 hours of battery life. 46mm Aluminum case: 46mm x 46mm x 9.7mm.