Make every beat count with Fitbit Charge 2—the heart rate and fitness wristband built for all-day, workouts and beyond. PurePulse continuous heart rate makes it easy to maximize workouts, better track calorie burn and get a snapshot of your cardio fitness level, while all-day activity and auto sleep tracking, lets you see how your whole routine adds up. Record your workouts with multi-sport modes to see real-time workout stats on screen, or rely on SmartTrack to automatically record select exercises for you.