Here is another fitness tracker that helps you exercise in the right heart zone to maximize your results. The Fitbit Alta HR Fitness Tracker has a slim design and accurate heart rate tracking. It can be used to track your sleep and workouts. It measures calorie burn and lets you know when you are in fat burn, cardio, and peak zones.
The device tracks steps, distance, calories burned and active minutes for up to 7 days on battery. It has interchangeable bands and reminds you to move.