Key Features: Kids spend less time charging and more time moving with up to 8 days of battery. Animated clock faces grow and develop as kids move more throughout the day. All-day activity tracking shows how healthy habits add up to a healthier life. Help kids form healthy sleep habits with sleep tracking, bedtime reminders and silent alarms. Bring on the tumbles, adventures or lunchtime spills-Fitbit Ace 3 is water-resistant. Kids can challenge their family to step competitions & send each other messages or cheers in-app. Kids earn virtual badges and fun on-screen celebrations when they reach their goals. A family account lets parents manage kid's Ace 3 and their own watch or tracker from one easy place.