Temperature sensor provides retrospective ovulation estimates and advanced cycle tracking features⁴

Measure your blood oxygen with a powerful sensor and app²

Take an ECG anytime, anywhere¹

Get high and low heart rate, and irregular rhythm notifications¹

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 swimproof design, and increased durability for fitness and activity

Call, text, and email with just a few taps

Listen to your favorite music, podcasts, and audiobooks

Make purchases instantly and securely from your wrist with Apple Pay⁷

Large, Always-On, edge-to-edge display

All-day battery life and fast charging⁸

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