User Guide of Fitbit Alta HR description

Fitbit motivates you to reach your health and fitness goals by tracking your activity, exercise, sleep, weight etc. It is a solid fitness tracker for someone that wants to stay in shape.
Fitbit Alta HR Features
# 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
# See how working out more can improve your health by comparing your resting heart rate trends to your activity