The swim proof activity tracker for kids 6+, Fitbit ace 2 makes family time more fun. It is full of motivating challenges, up to 5 days of battery, sleep tracking and inspiring ways to connect with parents, siblings and friends. There is nothing more meaningful than building healthy habits together and Centauri kids is the perfect way to get the whole family moving & making memories. Parents set up a family account and create child accounts accordingly. In parent view, they can easily see kids' activity and approve their connections.