Promote a healthy, active lifestyle for your children with this fun, motivating activity tracker. Fitbit app compatible - parents set up a family account to view progress. The Fitbit app also has a secure Kid View. Tracks steps, active minutes, sleep and sets reminders to move. Receive celebration messages and virtual badges. Kids can also compare and compete with friends. 10 fun clock-face designs to choose from. Syncs automatically to iOS and Android devices (not included). IPX7 showerproof but not swimproof. Battery provides up to 5 days of life. Adjustable band fits wrists 5" to 6.34" in circumference.