9 Top-Rated Fitness Trackers on Amazon

Fitbit Ace 3 Activity Tracker for Kids ($59, originally $79)

This fitness tracker is designed for ages six plus. It tracks sleep, activity, and is even water-resistant up to 50 meters. It has a fun animated clock feature that changes throughout the day, and it awards virtual badges and on-screen celebrations when goals are reached. The device comes in black and red (pictured here), blue and green, and yellow.