Watch Series 12 GPS+Cellular, 42mm Black Aluminum Case w/ Black Sport Band S/M

Health Sensing System delivers the most accurate heart rate sensing. Get Personal readiness score. Cellular connectivity to stay connected without iPhone using a carrier plan. 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 Health Age. Siri AI and Audio Intelligence. Heath and fitness tracker with safety features. S11 Chip. Up to 24 hours of battery life. 42mm Aluminum case: 42mm x 42mm x 9.7mm.