- Get the power of continuous heart rate in Fitbit’s slimmest design yet-all day, during workouts and beyond
- With heart rate, you can better measure calorie burn, and use zones (Fat Burn, Cardio, and Peak) to find the right workout intensity for your goals.
- With sleep stages powered by PurePulse heart rate, automatically track your time spent in light, deep and REM sleep (coming soon) and take steps toward a better night’s rest.
- See how working out more can improve your health by comparing your resting heart rate trends to your activity.
- Automatically track your steps, distance, calories burned and active minutes with up to 7 days of battery life
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