Disney Minnie Mouse Activity Tracker for Kids with Themed App Adventure. Features:. Swim-friendly kids activity tracker with Disney Minnie Mouse theme. Kid-tough stretchy band, features a customizable color screen and 1+ year battery life; no recharging needed. Syncs with free mobile app, which includes chore management and schedule alert tools for parents. Kids advance in Mickey’s Birthday Surprise: A Disney Adventure app adventures by meeting 60-minute daily activity goals. Tracks steps, sleep and 60 minutes of daily recommended activity. Stretchy band comfortably fits a wrist 147 mm in circumference; choose an adjustable band for a larger size. Specifications: Strap material - silicone. Physical size: Stretchy bands accommodate wrists up to 147 mm (ages 4-7), adjustable bands fit 130-175 mm (ages 6+), compatible with vívofit jr. and vívofit 3 bands. Weight: 17.5 g. Water rating: 5 ATM. Display type: sunlight-visible, transflective 8-color memory-in-pixel (MIP). Display size: 0.43'' x 0.43'' (11 x 11 mm). Display resolution: 88 x 88 pixels. Color display: Yes. Battery life: Up to 1 year (1 x CR1632 user-replaceable). Memory/History 4 weeks of activity data