Beautiful, bright amoled display and up to five-day battery life in smartwatch mode; Up to six hours in GPS and music mode The broadest range of all-day health monitoring features keeps track of your energy levels, respiration, menstrual cycle, stress, sleep, estimated heart rate and more Easily download songs to your watch, including playlists from Spotify, Amazon music or Deezer (may require a premium subscription With a third-party music provider), and connect with headphones (sold separately) for phone-free listening Record all the ways to move with more than 20 preloaded GPS and indoor sports apps, including yoga, running, pool swimming and more Get easy-to-follow, animated cardio, strength, yoga and Pilates workouts right on your watch screen. Smartphone compatibility-iPhone, Android