Some good fitness tracker bands are the Fitbit Charge HR, Jawbone UP2, Moov Now, and Fitbit Surge, according to Wareable. These fitness trackers track metrics such as numbers of steps and heart rate, and they each offer various features.
The Fitbit Charge HR tracks steps, active and resting heart rate, and sleep cycle. Its OLED screen also shows caller ID from the user's smartphone. The Jawbone UP2 tracks steps and sleep, and it offers an alarm clock feature. Moov Now is best for tracking running and cycling data, as it is worn around the leg and pairs with a smartphone. The Fitbit Surge tracker has a built-in heart rate monitor and a GPS.