Successor to the Fitbit Ace 2, the Ace 3 is specifically designed for kids, making it the obvious choice to top this list. It has a simple, tough design and straps specifically for small wrists, with a slim display to show the time and basic readouts.

It’s showerproof and the battery can last for up to eight days, meaning your kids can wear it all through the school week to keep an eye on their exercise.

There’s no heart rate monitor on the Ace 3, so if (or your child) want such functionality, you should consider the more able Inspire 3 tracker.

Fitbit recommends the Ace 3 for children over the age of six, with it tracking Steps, Active Minutes and basic Sleep, while also offering up Reminders to Move and basic notifications, like Caller ID. Bedtime Reminders, alarms, a timer and a stopwatch are all included extras too.

On the app side, Fitbit has created two Views exclusive to the Ace range: one for parents and another for the child. Just like adults, kids can win badges and trophies as they hit their activity goals. These family views are just for Ace. 

Fitbit also ensures all the data collected is private and not shared with its servers, keeping info about your kids safely with you and you only.

A Special Edition Ace 3 (at the same price) is based on the popular Minions movies.

If your child is a little too old for the look of the Fitbit Ace 3 then the Inspire 3 is the one to go for. it has a colour display and solid multi-day battery life to track steps and heart rate 24/7 – even in the shower or bath thanks to it being fully waterproof.

There are tons of fun and smart strap options available, but the tracking is where it excels. there’s no GPS for run route tracking, but if your child has a phone and wants to do that then the Inspire 3 can link to a smartphone’s GPS to provide that function. There are several exercise modes, and it even can detect irregular heart rhythms.

Wear it to bed and your child can see how they’ve been sleeping, and if you pay for Fitbit Premium the Fitbit app will even assign them a fun sleep animal that best mirrors their own sleep patterns.

Walking the line between the Inspire 2 and the Charge 5, the Luxe is a slim, lightweight tracker that doesn’t compromise on style.

While the jewellery-inspired special edition Gorjana model might not be the right fit for most kids, the standard Luxe still comes in an array of attractive finishes that make it look a little fancier and more grown-up compared to the similarly-sized Inspire 2.

The Luxe also features a colour display and while lacking an altimeter and integrated GPS (connected GPS is still part of the equation), it does retain a heart rate monitor, facilitating all the supported fitness features you’d expect.

The Luxe is equipped to help with stress management, Guided Breathing sessions and access to Health Metrics; such as breathing rate, heart rate variability (HRV), resting heart rate (RHR), skin temperature and oxygen saturation (SpO2).

It can track one of 20 exercise modes, plus it supports Active Zone Minutes and smartphone notifications, such as Caller ID and messages.

The Charge 5 is easily among Fitbit’s best all-round activity trackers. Fitbit has cherry-picked some of the best and brightest features from its latest trackers and smartwatches to create a Goldilocks product that delivers an impressive breadth of functionality for the price, not to mention wrapping it up in a lightweight and stylish package.

It covers all the basics – tracking steps, distance, calories burned, hourly activity, heart rate, swim-tracking and advanced sleep, not to mention it has most of the top-end exercise features too; including Active Zone Minutes. Its built-in GPS means it’s a tracker that can match the pricier smartwatches, though it can’t take calls, like the Sense and Versa 3 can.

There are a few missteps, however, like inconsistent performance, awkward device management, no altimeter (which the Charge 4 offers) and a few previously-available features that simply weren’t present on the Charge 5 at launch, when they really should have been.

If you want to splash more cash for a fully featured smartwatch, the Fitbit Versa 3 has just about everything.

The Versa 3 measures Steps, Distance, Calories Burned, Floors Climbed and Active Zone Minutes, as well as automatic Sleep and Activity Tracking. Of course, you get Reminders to Move and on-wrist notifications, including Caller ID, texts and calendar alerts.

It uses Fitbit’s improved PurePulse 2.0 heart-rate monitor and is even equipped to receive phone calls on-wrist, which might safely help keep your kid’s phone in her or his pocket when out and about.

It can also be set up with either Google Assistant or Amazon’s Alexa voice tools.

While the Ace 2 has obviously been replaced by the Ace 3, you can still find this model available online, and usually a bit cheaper.

The feature set is similar (Steps and Active Minutes, basic Sleep, Reminders To Move and Caller Notifications), but the screen is smaller and the overall design a little boxier.

While its five-day battery life is still decent, it’s not as long-lasting as the eight-day Ace 3.