Best fitness trackers 2024: Measure steps, sleep, calories and more

A woman checking one of the best fitness trackers during workout
(Image credit: Getty Images)

The best fitness trackers come in all shapes and sizes. While some smart wearables focus predominantly on tracking your vital stats — such as the budget-friendly Xiaomi Smart Band 7 or the innovative Oura ring — others can be a convenient one-stop shop for all your needs. For example, many of the best Garmin watches can map your running trails, tell the altitude, and even warn you when the weather conditions are about to change. Smartwatches like the Apple Watch Series 8, on the other hand, can act as a handy extension to your phone, thanks to smart features like contactless payment solutions, notification alerts or music playback.

The right fitness tracker can be invaluable to achieving your health and fitness goals. It is like having a pocket-sized personal trainer — it will help you make better fitness decisions and hold yourself accountable, Nathan Kennedy, a certified personal trainer, told Live Science. If you want to know more about the potential benefits of using fitness trackers, or how reliable they really are, scroll down to our Fitness tracker FAQs section to see what the experts say.

We know that picking the right fitness tracker can be tricky, especially now when plenty of models get discounted ahead of the Amazon Prime Day sale. This is why we have spent countless hours trying and testing some of the best fitness trackers on the market. We looked at design, features, comfort, durability and performance, as well as looks, ease of use, and connectivity with third-party devices. You can check our How we test section down below for more information on our fitness tracker testing protocol.

The quick list

The best fitness trackers we recommend in 2024: Fully tested by our expert team with hands-on, real-world experience

Why you can trust Live Science Our expert reviewers spend hours testing and comparing products and services so you can choose the best ones for you. Find out more about how we test.

The best fitness tracker for iPhone users

Best for iPhone users: This stylish all-rounder offers an impressive display, great tracking accuracy and rich app ecosystem.

Specifications

Screen: 1.6/1.34-inches and 1.77/1.49-inches OLED
Water resistance: 5ATM
GPS: Yes
Compatibility: iOS
Battery life: 18 hours

Reasons to buy

+
Software improvements fitness geeks will love
+
Good GPS and heart rate accuracy
+
Ovulation tracking is a thoughtful addition

Reasons to avoid

-
Short battery life, as usual
-
Not much change from last year
-
Costs more than much of the competition
Buy it if

✅ You want accurate health tracking features: You can trust Apple's sensors — particularly when it comes to their heart rate measurements.
✅ You need a great all-rounder: It comes with countless apps and additional features, and it is comfortable to wear, too.

You want to track your menstrual cycle: It features top-class temperature sensors and relevant software.

Don't buy it if

❌ You want a long battery life: It lasts just one day on a single charge.
❌ You are an Android user: Only compatible with other Apple devices.

If you are looking for great GPS and heart rate hardware, The Apple Watch Series 8 is a fantastic fitness tracker and our favorite of all the watches we have tested. We liked it so much that we gave this iconic wearable a massive 4.5 stars in our Apple Watch Series 8 review — and we even prefer it to the newer, more expensive Apple Watch models.

Apple really does offer best-in-class when it comes to health and safety features. In the Series 8, you will find an ECG monitor that can detect abnormal heart rhythms, a blood oxygen monitor and sleep tracking too. There is also an advanced gyroscope for fall detection, as well as ovulation tracking for those with a menstrual cycle. These are all features that you can find in other trackers, but in our experience the heart-tracking capabilities of Apple outstrip its competitors.

On top of that, the watch has an app library that’s bigger than all of its rivals put together. You can find second-party apps that will improve your yoga flows, help track your workouts and guide you on meditations. Compared with its predecessor, the Apple Watch Series 8 also offers more in-depth data on activities like running, including heart rate zones. You can even create custom workouts and save them to your watch.

But it is not without its faults; the watch is only compatible with iPhones and battery life only lasts for one day. Still, we think the model is the best combination of value, features and performance available on the market.

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Best smartwatch for tracking workouts

Best for tracking workouts: This feature-packed smartwatch is a great option for fitness fanatics

Specifications

Screen: 1.3-inches 260 x 260 MiP
Water resistance: 10ATM
GPS: Yes
Compatibility: iOS, Android
Battery life: 18 days

Reasons to buy

+
Long battery life
+
Good general data accuracy
+
Stacks of features and modes

Reasons to avoid

-
Expensive
-
Feels a little bulky for overnight wear
Buy it if

You want a detailed overview of your exercise performance: It is a great wearable for data-driven fitness fanatics.

You need accurate navigation systems: This watch boasts reliable GPS tracking and detailed on-watch maps.

You want long battery life: It can last up to 18 days on a single charge.

Don't buy it if

You are on a budget: It costs nearly $800.

You want an unobtrusive watch: This bulky wearable feels heavy on the wrist.

A Garmin Fenix 7 is the best fitness tracker to get if you want the most comprehensive set of built-in exercise features available. These stand out when you bring other hardware into the mix.

During our Garmin Fenix 7 Sapphire Solar review, we were thoroughly impressed with its performance and functionality. This rugged watch can connect to heart rate straps and foot pods, bike turbo trainers, and even Garmin’s bike lights. We liked that you can download continents’ worth of maps to the watch’s internal memory and plan hike, bike and run routes so you can leave your phone at home.

It lets you download music and podcasts from some of the most popular music services, including Spotify and Deezer. And the MiP screen only becomes clearer in bright sunlight, so tracked outdoor sessions won’t kill the long-lasting battery.

Its heart rate and GPS accuracy are great, and the presentation of stats like training load and VO2 Max seems tailored for the fitness enthusiast.

A Garmin Fenix 7 may be a bit much if you just want to track 5km runs a couple of times a week. It is not light and it is not cheap. The bulk isn’t ideal for sleep tracking, so consider Garmin’s Versa 2 if you like the sound of Garmin’s style but would prefer something smaller.

That said, Garmin’s watches are less intimidating than they once were. The Fenix 7 has a touchscreen and a quick swipe up from the watch face gives you a neat run-down of all your important daily stats. It has encyclopedic features, but works well for casual all-day tracking too.

Runner-up

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Best budget fitness tracker

Best under $50: This neat fitness band packs a load of features into its affordable price point.

Specifications

Screen: 1.62-inches AMOLED
Water resistance: 5ATM
GPS: Yes
Compatibility: iOS, Android
Battery life: 14 days

Reasons to buy

+
Advanced health monitoring includes blood oxygen and stress levels
+
110+ sport and fitness modes to choose from
+
Budget-friendly

Reasons to avoid

-
Some metric tracking isn’t accurate
-
The screen isn’t very responsive, particularly when sweaty
Buy it if

You are looking for great value for money: It strikes a great balance between functionality and affordability.

You want a long battery life: This watch can last up to two weeks on a single charge.

You want to track your menstrual cycle: It features an advanced period tracker.

Don't buy it if

You want highly accurate tracking features: Sleep and workout metrics may be imprecise.

You like high-intensity workouts: The screen may get unresponsive upon contact with sweat.

The Xiaomi Smart Band 7 has joined the flock of one of the most popular wearable brands in the world, offering users features often reserved for premium-priced wearables. It may not be the highest rated watch in this guide — it scored 3.5 stars in our Xiaomi Smart Band 7 review — but for $39.95, this fitness tracker is hard to beat for the sheer number of its features.

It looks good, too. Closely resembling the Fitbit in design, the crisp 1.62'' AMOLED high-resolution display is glare-resistant and 25% larger and brighter than its predecessor – the Xiaomi Smart Band 6.

The Smart Band 7 is iOS and Android compatible, pairing with its own Mi app to give access to data like heart rate, oxygen monitoring, sleep, and workout analysis. You can also follow guided meditations via the app and check in on your daily stress level data. Xiaomi has thrown the kitchen sink at fitness enthusiasts, offering GPS tracking and 110 sport and fitness modes, including swimming (the watch is 50 meters waterproof) and yoga.

We loved the female health management feature that allows you to track your periods and form patterns between your workout data and health stats. However, we found that a few features lacked accuracy, including sleep (and sleep stages) data and workout stats like calories and distance. The touchscreen also became unresponsive during sweaty workouts, which could be frustrating for activities like running or CrossFit.

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Best fitness tracker under $150

Best under $150: It is feather-weight, packed with tracking features, and it does not cost the earth.

Specifications

Screen: AMOLED 1.75-inches 390x450
Water resistance: 5ATM
Compatibility: Android, iOS
Battery life: up to 30 days
GPS: Yes
Heart rate monitor: Yes

Reasons to buy

+
Feather-light
+
30-day battery life
+
Accurate tracking features
+
Great value for money

Reasons to avoid

-
Feels plastic to the touch
-
Some features require a subscription
Buy it if

You want accurate health tracking: It does a good job at measuring heart rate, sleep and steps.

You want long battery life: This smartwatch can last up to 30 days on the battery-saving mode.

You are on a budget: It costs $129.99.

Don't buy it if

You are looking for exceptional durability: It features a rather delicate, plastic-feeling frame.

You want accurate strength training features: It may underestimate the amount of reps and sets.

Smartwatches tend to be pricier than fitness trackers, simply because they pack more features and have a more robust design. However, some models can still offer all the bells and whistles of premium smartwatches — but with a much more wallet-friendly price tag. The Amazfit Active is one of those rare exceptions.

There is plenty to like about this budget-friendly smartwatch. It is feather-light, compact, comfortable to wear, and packed to the brim with tracking features. During our Amazfit Active smartwatch review, it thoroughly impressed us with its long battery life — up to a whopping 30 days in the battery-saving mode — and the good accuracy of its heart rate and movement sensors. We also liked its intuitive controls and an exceptionally bright, detailed and colorful display.

The Amazfit Active measures your heart rate, heart rate variability, body temperature, blood oxygen, steps, breathing rate, stress level and sleep quality. This smartwatch can also track up to 120 sports activities, and thanks to its AI-powered coaching apps, even help you boost your exercise performance. Moreover, it features GPS navigation, compass, Alexa voice assistant, phone call extension, and a myriad of other apps.

However, the Amazfit Active may not perform well in challenging outdoor conditions. That is because this model comes with a rather delicate, plastic-feeling frame, and its display is not strengthened with Gorilla glass or Sapphire Crystal. In addition, some of its features are hidden behind a paywall.

Best running watch

Best running watch: This sleek wearable can be the key to boosting your running performance.

Specifications

Screen: 1.4-inches 454 x 454 OLED
Water resistance: 5ATM
GPS: Yes
Compatibility: iOS, Android
Battery life: Up to 23 days

Reasons to buy

+
Bursting with features
+
Significantly cheaper than the Epix 2
+
Good stat accuracy

Reasons to avoid

-
5ATM water resistance doesn’t match Garmin’s best
-
The design is friendlier than the price
-
Still mostly a plastic resin watch
Buy it if

You are looking for good value for money: It offers all the high-end Garmin features, but at a reasonable price.

You want a long battery life: This watch can last up to 23 days on a single charge.

You want accurate tracking features: It features an excellent GPS, and you can rely on its health sensors, too.

Don't buy it if

You are a keen swimmer: It will not survive deep dives.

You need an ultra-sturdy watch: Not as durable as more premium Garmin models.

The Garmin Forerunner 965 is an excellent choice for runners thanks to its user-friendly design, excellent navigation, and a wealth of features designed to boost your exercise performance. It is also more affordable than some of the more premium Garmin models — which is why we gave it a strong 4.5 stars in our Garmin Forerunner 965 review.

The Forerunner watches have won our seal of approval multiple times, even despite the ever-increasing retail prices. We loved the Garmin Forerunner 955, but had to admit it was slightly too expensive for a watch with a plastic shell. The Forerunner 965 has stepped up its design, though — while the main part of the shell is still made from a plastic “resin”, its bezel is now crafted from rock-hard titanium.

The Forerunner 965 screen boasts the biggest OLED Garmin has put into a watch to date, a 1.4in panel of 454 x 454 pixels. The display is also crisp, bright and colorful, making it easy to track your stats and follow the route on-the-go.

The Garmin Forerunner 965 is packed to the brim with features that can help you level up your running performance. There is a good range of reliable health and activity stats to give you valuable insights into your cardiovascular health, exercise performance and recovery time. The Forerunner 965 is also equipped with excellent navigation systems and detailed maps, so you'll not veer off the track and get lost when running through unfamiliar places. Mind you, this model currently has the 8.8GB Europe Topo maps pack installed, but you can freely install others if you like.

You also have 32GB on which to store any music you might want to carry around with you, smart notifications and handy workout suggestions to spruce up your exercise routine.

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Best fitness tracker for wellness

Best for wellness: Bust stress and improve sleep with this surprisingly affordable smartwatch.

Specifications

Screen: AMOLED 1.5-inches 480x480
Water resistance: 5ATM
GPS: Yes
Compatibility: iOS, Android
Battery life: 14 days

Reasons to buy

+
Accurate tracking features
+
Light and compact
+
Long battery life
+
Great value for money

Reasons to avoid

-
No Gorilla Glass or Sapphire Crystal on the screen
-
Some additional features are subscription-only
Buy it if

You are on a budget: This feature-packed smartwatch costs a reasonable $220.

You want a long battery life: This watch can last up to two weeks on a single charge.

You want accurate tracking features: Its heart rate and body composition sensors are top-class.

Don't buy it if

You are an outdoor adventurer: It may not be durable enough to survive extreme conditions.

You do not want to pay for extra subscriptions: Some features are behind a paywall.

The budget-friendly Amazfit Balance is a great option for those who want to better manage their sleep hygiene and stress levels. This sleek fitness tracker is packed to the brim with wellness apps and advanced health tracking features designed to help you boost your post-exercise recovery and live a more mindful lifestyle. It also comes with a whopping 14-day battery life, crisp AMOLED display, dual-band GPS navigation, compass, altimeter, and many other features typically reserved for more premium models.

During our Amazfit Balance review, it thoroughly impressed us with its performance and stylish, unobtrusive design. This smartwatch accurately measured our heart rate, breathing rate, heart rate variability, and body composition, and did a great job at picking up on our stress levels, sleep duration, and overall sleep quality.

We also liked its easy-to-use, colorful display and comfortable, buttery-soft strap. Not to mention, it was one of the lightest and most compact smartwatches we have ever tested.

For roughly two hundred dollars, the Amazfit Balance offers great value for money. However, some of its additional features, such as the AI-powered fitness coach chatbot, are locked behind a paywall. Moreover, the display in the Amazfit Balance does not feature Gorilla Glass or any other sturdy materials, so it may not be the best choice for those who engage in extreme sports or heavy manual tasks.