Garmin vivoactive 4S, Smaller-Sized GPS Smartwatch, Features Music, Body Energy Monitoring, Animated Workouts, Pulse Ox Sensors, Rose Gold with White Band 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), respiration, menstrual cycle, stress, sleep, estimated heart, hydration and more.Operating temperature range :From -20º to 60ºC (from -4º to 140ºF) 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, swimming and more. Get easy-to-follow, animated workouts right on your watch screen, including strength, cardio, yoga and Pilates Fits wrists with a circumference of 110-175 millimeter Battery life: Up to 7 days in smartwatch mode; Up to 5 hours in GPS and music mode