The vivofit jr.3 isn\'t just a fitness tracker for kids, it\'s an interactive experience where your child\'s activity unlocks exciting Marvel Avengers app adventures! This red Iron Man design has your child ready for any S.H.I.E.L.D. mission with a colour display and multiple face options. This accessory has endless functions, from unlocking Marvel Avengers adventures and games, to parents managing chores and giving rewards. Not only does 60 minutes of daily activity unlock adventure, the more active minutes kids log, the more chances they’ll get to play the heart-pounding tap challenge game. Meeting their daily activity goals also rewards your kid with Infinity Stone points. They can use these points to reveal epic new images of the Avengers. This durable fitness tracker is swim friendly, and the easy-to-replace battery lasts up to 1 year.