There are plenty of fancy fitness trackers available for adults. Fitbit Ace is designed with kids in mind. It is a showerproof wristband that tracks steps, active minutes, and sleep. It is ideal for kids ages 8 and above. The device allows customizable step and active minute goals. The battery life lasts up to 5 days.
Ace allows parents to set up a family account to view activity and progress made by kids. The app allows users to see their stats and badges. Kids who have a smartphone can receive notifications on their wrist. The Fitbit Ace is available for under $100 at this time.[where to find it]