Watch Ultra 4 GPS+Cellular 49mm Black Case w/ Black Titanium Milanese Loop - L

The longest battery life of any Apple Watch with up to 50 hours. Cellular connectivity with carrier service to stay connected without iPhone. Health Sensing System delivers the most accurate heart rate sensing in a wearable. Personal readiness score: rest or put yourself to the test. More frequent HRV readings help provide insights on stress and recovery. Learn habits influencing Health Age and how to improve. Siri AI supports Audio Intelligence powered by S11 chip. Safety features such as SOS Fall detection and more.