Recommendations for fitbit / fitness tracker for a child please

[Pollaidh]

DD would like a fitbit or similar to monitor step count. It would need to be a wrist one, and she'd probably like it if it came in a colour that wasn't black. She is very very skinny so would need to fit a very slim wrist.

(No issues around eating disorders in case anyone's concerned, just genetic slimness, and she's quite sporty.)

Can anyone recommend one that's reliable, accurate, easy to use for a pre-teen, and comes in around the £40-£100 mark please?

Thanks.

We've just got our child the new Fitbit ace, designed for children and he is really pleased with it. £80 I think it was.

Thanks!

My son (8) just got a Fitbit Ace, having previously had a Garmin Vívofit Junior. I think the Vívofit was actually better (waterproof, bit more robust) but the app is quite babyish. He wanted to be able to compete with other family members who have Fitbits. He is very skinny and the small Fitbit bracelet for the Ace is fine.

DC1 had the Garmin vivofit junior as a birthday present and is getting along great guns with it. I like that you can add chores and they get prizes for completing things. They come in loads of designs & with a stretchy band as well.