Great condition- get your child motivated to move! Tracks steps, active minutes and sleep and shows stats on a bright, tap display Rewards kids for hitting goals with celebratory messages and achievement badges. Kids can challenge others to step competitions plus send each other messages or cheers A showerproof tracker that survives splashes and spills with a secure, adjustable wristband for growing kids (one size) and Fits wrists 4.6 inch to 6.1 inch in circumference Syncs stats wirelessly and automatically to iOS & Android devices and has a battery life up to 5 days (varies with use and other factors) In the Fitbit app, parents create an account for their child under a family account (family account and parental consent required for children 12 and under) Operating temperature: -10° to 45° C