Apple Watch Series 3, Elevated in every way. Measure your workouts, from running and cycling to new high-intensity interval training. Track and share your daily activity, and get the motivation you need to hit your goals. Better manager everyday stress and monitor your heart rate more effectively. Automatically sync your favorite playlists. And stay connected to the people and info you care about most. GPS and a barometric altimeter track how far and high you go. New dual-core processor for faster app performance. Ultimate sports watch and intelligent activity tracker. Swimproof so you're always ready for the pool or ocean. Aluminum case. WatchOS 4 is even more intuitive and intelligent.