The best fitness trackers under £100 in 2024

The Fitbit Inspire 3 happens to be one the best Fitbits overall, as well as one of the best fitness trackers under £100 – and with good reason. Fitbit is a leading brand in the world of health and fitness tracking, with years of research and development behind it. The Inspire 3 is one of the smallest and most affordable of their devices, and yet it still offers an impressive list of features. These include heart rate, sleep, step and blood oxygen monitoring, and estimated calorie burn.

The Fitbit app is extremely user friendly, and gives access to detailed insights into overall health and fitness, and any trends over time. The app is essential to help get the most out of your Fitbit. It isn’t as advanced as some of Fitbit’s more expensive models, but its 10-day battery life is better than most Fitbits and holds its own against most other fitness trackers as well. It’s a polished device that doesn’t cost a fortune.

Xiaomi’s Smart Band 8 Pro is a device that looks more like a smartwatch than a traditional fitness tracker. And while it may lack many of the features of a "true" smartwatch (such as apps) one feature that really makes this device stand out is built-in GPS. Most budget fitness trackers rely on connecting to your phone’s GPS. But this device has its own GPS connection, which allows you to leave your mobile behind when you’re off for a run or a bike ride. 

In addition, the Band 8 Pro will track your heart rate, blood oxygen, sleep, step counts, and calorie burn. There are also advanced training metrics such as VO2 Max, training effect and recovery time, and cadence and stride length when running. The large AMOLED screen is bright and easy to read, and you’ll get around six days between charges.

The Huawei Band 9 packs a punch, despite being incredibly affordable. In return for an RRP of £49.99 you’re getting a vibrant, 1.47-inch OLED screen, that still somehow manages to weigh just 14g. And in terms of its health and fitness tracking, there isn’t much missing either. 

Features include sleep tracking, heart rate and blood oxygen measurements, stress, and women’s health tracking including period reminders and fertility window predictions.

It can also track over 100 different activity types, and its 5ATM water resistance makes it safe to take swimming. It also claims to be able to monitor your stroke count, stroke rate, and SWOLF (which measures your swimming efficiency) while you’re in the water.

The app is there to collate all the data and provide regular insights into your health and wellbeing. There are some potential concerns about its accuracy, but if you want something inexpensive that covers almost everything you could want in a fitness tracker, it’s a great option.

With a 1.64-inch HD AMOLED display, the Huawei Watch Fit SE has one of the largest displays of any device on this list. It also offers a wide array (over 10,000) of watch faces to choose from. But it's more than just a pretty face.

The Watch Fit SE tracks sleep, heart rate, blood oxygen, steps and estimates calorie burn. It also has over 100 workout modes for tracking your exercise, and a "scientific" running program that monitors metrics such as VO2 Max, training load, recovery time, and running ability. It also has built-in GPS, to deliver accurate tracking of outdoor activities.  

There are also features such as weather reports, a stopwatch, music controls, and even a torch function. And despite the large screen, the battery will still give you somewhere between six and nine days of usage between charges. It's a well-stocked device, and still manages to come in at £89.99 (RRP), which is very competitive given all it has to offer.

Fitness tracker battery life can be variable, but typically you should expect at least five days between charges. The Xiaomi Band 9 offers a whopping 21 days. This will vary slightly depending on how heavy your usage is, but overall, there aren’t many fitness trackers that can compete – especially at this price. 

You’ll still get heart rate, blood oxygen, sleep and stress tracking, training metrics like VO2 Max, recovery time, training load and training effect, menstrual cycle tracking, and around 150 sports that can be tracked. You’ll also get a large, 1.62-inch AMOLED display that’s twice as bright as the Band 8 this model replaces, and easy to read. 

There’s also something called Pebble Mode. This allows you to remove the tracker from its strap and put it on your show via an attachment (sold separately) and use it as a running pod. If you're a keen runner, this feature may be particularly appealing. 

There are some compromises to be made – it isn’t the most accurate device on the market (although Xiaomi claims that new sensors mean this has improved by up to 16 per cent), and it doesn’t have the most polished app. But if you just want to track the basics without worrying about charging it all the time, the Xiaomi Band 9 could be the perfect choice, especially given its competitive RRP of £34.99.

The Amazfit GTS 4 Mini is probably the closest device on our list to being a fully-fledged smartwatch, and it certainly looks the part. But in performance terms, it is much more like a conventional fitness tracker, with a few extra smartwatch features to boot. 

With its stylish design, and a bright, 1.65-inch AMOLED display, this watch has over 120 sports tracking modes, and built-in GPS, making it great for anyone who wants to accurately track their outdoor runs, walks or bike rides, without having to take their phone with them. It also tracks steps, heart rate, blood oxygen, and stress, while the 5ATM water resistance rating means that it's fine to take for a swim. 

Add to all that an impressive 15-day battery life, built-in Alexa voice assistant, a music app, to-do-list, stopwatch, torch, and weather reports, and this tracker tries hard to cram as much in as possible. An RRP of £99 means it won’t break the bank either.

While the Honor Band 7 has an RRP of £49.99, we’ve often seen it available for as little as £39.99, making this the best value fitness tracker on our list. It offers many of the features you will find on more expensive trackers, including heart rate, blood oxygen, stress and sleep tracking. It also offers breathing exercises, tracks 96 different sports, as well as step counting and calorie burn estimation. 

The screen is an impressively large 1.47-inch AMOLED, which is crystal clear and easy to read. And despite such a large display, the Band 7 still provides a battery life of up to 14 days between charges. You won’t need to worry about whether it’s going to run out of charge midway through your next workout.

Tracking is perhaps less reliable than the top-performing fitness trackers, and there’s no built-in GPS. But for the price, it’s hard to argue that anything else represents better value for money.

The Vivosmart 4 isn’t Garmin’s newest fitness tracker, having been replaced by the Vivosmart 5 in 2022. And in fact, the Vivosmart 4 has been around since 2018. But despite its age it remains one of the few Garmin devices that costs less than £100 (RRP £99.99, and often available for considerably less than this).  

The compromise of an older device means a smaller screen, no built-in GPS, and slightly less accurate sensors. But you still get a very neat and comfortable fitness tracker which allows you access to Garmin’s considerable expertise, including metrics such as Body Battery. It also tracks heart rate, blood oxygen, sleep, stress, step count, and provides estimates of your VO2 Max and fitness age (which tells you how fit you are compared to your chronological age). 

Battery life is a solid seven days, and the Garmin Connect app is one of the best companion apps in the business. It provides plenty of data that’s easy to understand and looks great. If you want a Garmin for under a hundred pounds, this is still a contender.

While it doesn’t have all the health and fitness features Fitbits for adults offer, the Fitbit Ace 3 still provides lots of the essentials to help keep track of health and wellbeing. The Ace 3 counts steps, tracks time spent being active, and sleep. It’s also water resistant to 50-metres. The device will remind kids to get moving, and offers badges, animated clock faces and avatars as rewards for being active. 

Best of all, the companion app allows parents and children to keep track of their stats, without exposing children to potentially unwanted data such as calories burned. And while it’s suitable for kids from the age of six, its design means that it won’t start to look babyish as your child enters their teenage years, meaning that this should have some longevity.

Battery will last up to eight days, and the interchangeable silicon strap will help protect the screen from damage. If you’re looking for a basic fitness tracker to help encourage a child to get active, this has an RRP of £69.99, but is often available for less than £50.