Get fit in style with fitbit blaze black silver - large, a smart fitness watch that helps you maximize every workout and every day. With advanced technology in a versatile design, this revolutionary device is built to track your workouts, monitor your performance stats, and gauge your progress. Pure pulse continuous heart rate and multi-sport modes enhance every exercise, while next generation features like connected gps and fit star workouts on your wrist help you take your fitness to the next level. All day activity and sleep tracking and call, text and calendar notifications help you track your day with ease and interchangeable band and frames and customizable clock faces on the hires color touchscreen let you personalize your style for every occasion. With all this and more, fit bit blaze has everything you need to reach your goals, packed into one sleek time piece. Key features - pure pulse heart rate, connected gps, on-screen workouts with fit star, call, text & calendar alerts, music control, all-day activity, multi-faceted clock faces, 5 day battery life, accessory bands + fitness, auto sleep tracking, silent alarms.