My children 11 and 14 years old want a Fitbit - what to get ?

[Notmariepoppins]

I don't want to spend a lot of money but I want 2 good enough. Any suggestions ? Thank you :)

It depends what they want ir for.
I got a fitbit alta when my last watch died and it's good for general all round info. I don't have the heart rate function but that's because I have a Garmin monitor for that.

I bought an Alta for my 11 year old - it's great and she loves it. Obsessed with it actually so I'd recommend that. Very easy to use.