Kids can also work towards activity goals, and get rewarded with badges and celebratory messages when they meet them.
Kids will be able to compete against their friends or their family members with daily or weekend activity challenges.
Since Fitbit Ace does require the Fitbit app to set up, Fitbit says it has added special settings in its app to protect kids' privacy.
Parents will be able to check kids' activity and approve kids' friend requests in the app, as well as set limits on what their kids can see.
Fitbit Ace costs $100 and is available for preorder starting Tuesday.
The band will be available to buy on Fitbit's website and at Amazon, Best Buy, Target, and Kohl's sometime after April 2018.