The BEST youth (under 10) fitness tracker with rewards out there - essentially the same as the vivo fit jr (original) the vivo fit jr. 2 comes with an adjustable strap and a bit nicer display. phone app used to track chores and award points is fairly well designed and somewhat flexible. watch is 100% waterproof which is a big factor for longevity and fun and preventing loss (never has to come off). Had the original when our daughter was 6 but hr wrist quickly out grew it by 7. It has a clock, alarms, rewards, step tracker, graphic notifications and although we don't use this - can be set up to track competitiveness between friends who have the same watch. HIGHLY RECOMMENDED.