Fitbit Ace 2 Kids Activity Tracker – Night Sky/ Neon YellowActivity tracker for kids 6+Night Sky + Neon YellowTracks activitySwimproof*Up to 5 days battery life**Tracks sleepGoal celebrations & badgesReminders to moveFun clock facesParental controls in your family accountsInterchangeable bands (sold separately)*Water-resistant up to 50 meters**Battery life varies based on use and other factors