The Fitbit Ace 2 doesn't break the mould for what a kids' fitness tracker can do, but unlike its predecessor it puts everything into a more child-proof package. This feels like a tracker built for kids, but also one that has strong core features and the ability to adapt when Ace 2 owners get bored...

Waterproof design; New goal celebrations; More distinctive look

Great product, tough for the kids. Can keep an eye on how they are going through the app.

This FitBit is great for kids. The strap is very soft, comfortable on the wrist and easily adjustable. The daily challenges and goals are motivating and engaging. The fun clock faces are a nice feature for children.

The black piece pops out and is a horrible design for kids. We have owned it for a little over 4 months. My kid is 7 and can be fidgety at times. Honestly he pops it in and out sometimes. So I guess he stretched it out. So at swimming lessons the pebble came out on its own.

As I have seen other reviews, I purchased this for my 9-year-old grandson. The tracker works fine, but the band broke only after 2-3 months. The tracker was also falling out of the bottom portion of the band. I think that Fitbit needs to redesign a band that works for children.

Built with the intention of making sure your young ones are as active as possible, the Fitbit Ace 2 improves on the previous model with a more eye-catching design, better screen and improved water resistance. To top it all off, it's slightly cheaper than the original, too.

Colorful design; Changeable straps; Swim-proof;

Feels a bit cheap; Somewhat expensive; App can be fiddly to set up