Apple Watch SE Key feature bullets ·Take calls and reply to texts, right from your wrist ·Up to 20% faster than the previous Apple Watch SE ·Advanced safety features, including Fall Detection, Emergency SOS, and Crash Detection ·Track your daily activity on Apple Watch, and see your trends in the Fitness app on iPhone ·Enhanced Workout app with more advanced ways to train · Get high and low heart rate and irregular rhythm notifications ·Listen to your favorite music, podcasts, and audiobooks ·Swimproof design ·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