I personally wear a Fitbit Blaze (which I love) but this Garmin is really designed for kids. There is no Fitbit designed for children under 13. These Garmins have fun features that are the same as Fitbit including: stopwatch / timer, clock, step counter, and easy to read display. The kids do not need the app to see their stats, unlike Fitbit. The app is for the parents mostly, to control the settings. The parents can monitor activity AND add in alarms, chores to earn "tokens", and reminders to do things like brushing teeth, etc. A major plus of this Garmin is what no Fitbit currently offers- is that it is waterproof. Fitbit Blaze is water resistant - this Vivo Jr can be worn while swimming!