PRODUCT OVERVIEWApple Watch Series 8 features advanced health sensors and apps, so you can take an ECG¹, measure heart rate¹ and blood oxygen², and track temperature changes³ for advanced insights into your menstrual cycle⁴. And with Crash Detection, sleep stages tracking, and advanced workout metrics, it helps you stay active, healthy, safe, and connected. See Dimension section below for band sizing information.KEY FEATURESWith cellular, stay connected even without your iPhone nearby¹⁰Stream or sync your favorite music, podcasts, and audiobooksSet up and manage an Apple Watch for each family member, right from your iPhone, with Family Setup¹¹Temperature sensor provides retrospective ovulation estimates and advanced cycle tracking features⁴Measure your blood oxygen with a powerful sensor and app²Take an ECG anytime, anywhere¹Get high and low heart rate, and irregular rhythm notifications¹Advanced safety features, including Fall Detection, Emergency SOS⁵, and Crash DetectionA completely redesigned Compass app with waypoints and BacktrackTrack your daily activity on Apple Watch, and see your trends in the Fitness app on iPhoneThe most crack-resistant front crystal yet on an Apple Watch, IP6X dust resistance and swimproof design, and increased durability for fitness and activityCall, text, and email with just a few tapsMake purchases instantly and securely from your wrist with Apple Pay⁷Large, Always-On, edge-to-edge displayAll-day battery life and fast charging⁸Sleep stages tracking lets you see how much time you spend in REM, core, and deep sleepwatchOS 9 features an enhanced Workout app, a new Medications app, sleep stages, and greater insights into heart healthApple Watch comes with 3 free months of Apple Fitness+, featuring 11 different workout types, from HIIT to Yoga, and even meditations⁹¹Apple Watch Series 8 requires an iPhone 8 or later with iOS 16 or later.²The ECG app and irregular rhythm notification require the latest versions of watchOS and iOS and are