Collection: Fitbit Ace 3 Bands

They are made for children's wrists, fitting roughly 122mm to 173mm, with adjustment holes along the strap to size it down. The Ace 3 is designed for ages six and up, though the band will also go round a small adult wrist. Measure just above the wrist bone before ordering rather than guessing by age.

No. The Ace 2 clips into its band at the sides, while the Ace 3 sits inside a moulded cradle in the back of the strap, so the two do not swap. Our Fitbit Ace 2 bands and Fitbit Ace bands collections cover the earlier trackers.

Both hold the tracker the same way and fasten with a buckle. The plain straps come in single colours and are the cheaper option, while the printed range adds patterns such as camouflage, flowers and pawprints, along with double security loops. Choose printed if your child likes picking their own.

The tracker sits embedded in the back of the band rather than clipping on, so it cannot pop out on its own, and the strap fastens with a buckle like a watch rather than a clasp. The printed range adds double security loops to hold the loose end down. Check the buckle pin is through a hole, not just tucked.

Yes. The charger cable and the Refuel stand on this page are listed for both, so one charger covers a household with a kid's tracker and an adult one. The Ace 2 uses a different charger again. Bands do not cross over - our Fitbit Inspire 2 bands collection covers the adult tracker.