Revolutionary design with fitness in mind. PurePulse technology allows continuous heartrate tracking - without an uncomfortable chest strap. Hit your fitness goals with on-screen FitStar workouts and coaching on your wrist. Colour touchscreen with music control. See notifications on screen for calls, text, calendar events, and get push notfications from Gmail and Facebook. Auto sleep tracking helps you to tailor your habits for a better sleep. Model FB502GPKL.