FULLY FUNCTIONAL Use amazon Alexa built in to get quick news and information, check the weather, set timers and alarms, control your smart home devices through the sound of your voice (third party app may be required; amazon Alexa not available in all countries) Based on your heart rate, time asleep and restlessness, sleep score helps you better understand your sleep quality each night. Also track your time in light, deep and REM sleep stages and get personal insights With a larger display and an always on option, your information?s always a quick glance away (always on display requires more frequent charging) Play your favorite songs and playlists with Spotify app controls on your wrist. Also make secure purchases with Fitbit Pay and get called, text and smartphone app notifications.