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 pure pulse 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 battery life up to 7 days