Essential features to help you stay connected, active, healthy, and safe.Perfect for kids and older adults using Family SetupTake calls and reply to texts, right from your wristUp to 20% faster than the previous Apple Watch SEAdvanced safety features, including Fall Detection, Emergency SOS and Crash DetectionTrack your daily activity on your Apple Watch, and see your trends in the Fitness app on iPhoneEnhanced Workout app with more advanced ways to trainGet high and low heart rate and irregular rhythm notificationsMake purchases instantly and securely from your wrist with Apple PaySwimproof designSleep 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 meditationsApple Watch SE requires an iPhone 8 or later with iOS 16 or later.