Smart activity coaching. An enhanced Heart Rate app. Your favorite playlists right on your wrist. And a built-in altimeter. Introducing Apple Watch Series 3. Now you can be more active, motivated, and connected than ever. With built-in GPS and a new altimeter, Apple Watch Series 3 tracks all your outdoor workouts. An updated Workout app includes High-Intensity Interval Training and auto-sets for swimming laps. You can also take more music than ever on your wrist for endless amounts of musical motivation. With Apple Watch Series 3, you can take more music with you wherever you go. Your favorite Apple Music playlists are automatically synced to your watch so you’ll have the motivation you need to power through every workout.