Apple Watch Series 8 features advanced health sensors and apps, so you can take an ECG¹, measure heart rate and blood oxygen², and track temperature changes³ for advanced insights into your menstrual cycle. 4 And with Crash Detection, sleep stages tracking and advanced workout metrics, it helps you stay active, healthy, safe and connected.Measure your blood oxygen with a powerful sensor and app. Take an ECG at any time, anywhere. Get high- and low-heart-rate and irregular rhythm notifications. Advanced safety features, including Fall Detection, Emergency SOS5 and Crash Detection.
Enhanced Workout app with more advanced metrics and ways to train. A completely redesigned Compass app with Waypoints and Backtrack. Track your daily activity on Apple Watch, and see your trends in the Fitness app on iPhone. The most crack-resistant front crystal yet on an Apple Watch, IP6X dust resistance and swim-proof design6, and increased durability for fitness and activity. All-day battery life8 and fast charging.Sleep stages tracking lets you see how much time you spend in REM, Core and Deep sleep. WatchOS 9 features an enhanced Workout app, a new Medications app, sleep stages and greater insights into heart health. Apple Watch comes with three months of Apple Fitness+, featuring 11 different workout types, from HIIT to Yoga, and even meditations. Apple Watch Series 8 requires an iPhone 8 or later with iOS 16 or later.