Stay connected without your iPhone nearby with this cellular item. Stream or sync music, podcasts, and audiobooks. Set up and manage an Apple Watch for each family member with Family Setup. Temperature sensor offers retrospective ovulation estimates and advanced cycle tracking. Measure your blood oxygen with a powerful sensor and app. Take an ECG anytime, anywhere. Get high and low heart rate notifications and irregular rhythm notifications. Advanced safety features include Fall Detection, Emergency SOS, and Crash Detection. Enhanced Workout app with more advanced metrics and ways to train. A completely redesigned Compass app with waypoints and Backtrack.