, The broadest range of all-day health monitoring features keeps track of your energy levels pulse ox (this is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition) , Easily download songs to your watch including playlists from Spotify 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 swimming and more , Get easy-to-follow animated workouts right on your watch screen including strength cardio yoga and Pilates , Battery life up to 8 days in smartwatch mode up to 6 hours in GPS and music mode