Best Smallest Fitness Trackers

Looking for the best fitness watch that can accompany you on your swim, read your blood oxygen levels, count your steps, and tell whether you are well-rested? Then, we at got you covered!

With so many fitness watches on the market, finding an ideal one for your fitness needs can be tricky! That is why we want to make the search easier for you by providing you with these best-dedicated fitness trackers through our practical knowledge!

In picking these fitness watches, we consider their sizes, functions/ features, and durability. Find your best fitness tracker below!

Top 7 Best Smallest Fitness Trackers for Small Wrists

Review Roundup

WeightSizeWristband MaterialWater-resistance depth
1. Polar A370 Fitness Tracker 0.34 Pounds13 x 27 mmElasticized-Fabric30 meters
2. Fitbit Charge 41.06 Ounces35.8mm x 22.7mm x 12.5mmelastomer Swimproof: up to 50 meters/ 164 feet
3. Fitbit Inspire 2 Health & Fitness Tracker1.06 Ounces/ 0.03kg.1.47 x 0.66 x 0.51 incheselastomer silicone50 meters
4. Amazon HaloSensor capsule: 0.63 ouncesBands: 0.18, 0.19, and 0.22 ouncesSensor capsule: 1.64 by 0.84 by 0.41 inches (LWH)silicone and soft-woven fabric bands50M (5 atm)
5. Huawei Band 3 Pro24grams45mm x 19mm x 11mmSilicon rubber5ATM(Swim or Shower in not-hot water)
6. Garmin Vivosmart 4 0.64 ounces0.75 InchesSilicon rubber50 meters
7. Apple Watch Series 61.08 Ounces40mm, 44mmSoft Woven Canvas Nylon50 meters

1. Polar A370 Fitness Tracker

Polar watches tend to focus more on workouts, battery life, and waterproofing. And this is evident in their Polar A370 Fitness Tracker.

After trying out this product, we discovered that while the fitness tracker is not particularly tacky; it is filled with features worthy of being one of the best fitness trackers nowadays.

It records daily activities and training sessions with confidence. There’s also a sleep tracking feature to do an in-depth sleep analysis. Moreover, it tracks your heart rate in every twist and turn that you do in your daily life.

There’s an assisted GPS to track distance and route and speed. The same GPS feature allows you to be notified of incoming messages and calls from the phone.

This fitness tracker is also unique because of 3Rd party compatibility, wherein it automatically sends exercise and activity data to services that you allow it. Most of all, we like that this fitness tracker is competitively priced!

  • Can be used as a heart rate sensor
  • With sleep tracking feature
  • With personalized exercise guidance
  • Waterproof - suitable for bathing and swimming (but may prevent heart rate measurement when submerged in water)
  • 3Rd party compatibility
  • Grainy screen
  • Clunky design
  • No onboard GPS

Like what you see? Buy this product here today!

2. Fitbit Charge 4

Our research shows that one of the best fitness trackers you can buy today is the Fitbit Charge 4 which has built-in GPS so you can track your walks and runs and simply leave your phone at home while you’re out.

It also allows contactless payments and if you brought your phone with you during a jog, it’s easy to control the Spotify from your Fitbit Charge 4 too!

It may look the same as the Fitbit Charge 3, but it is more advanced when it comes to features. Consider the Active Zone Minutes, for instance.

Such a feature measures activities that are faster than a brisk walk and the recommendations used by this fitness tracking watch are also based on different health organizations.

Packed with features, neat, and slim, the Fitbit Charge 4 is surely worth being on the least of the best fitness trackers in the market today!


  • Allows contactless payment with Fitbit Pay
  • With on-board GPS
  • Spotify controls
  • With the new Active Zone Minutes feature
  • Menus and icons on the fitness tracking watch are easy to understand and well-laid out
  • With a new intensity map after each workout that shows the heart-map of your activities
  • 7-day battery life
  • Allows synching for easy transfer of data to Fitbit app
  • Lack of color display

Interested? Click here to buy it!

3. Fitbit Inspire 2 Health & Fitness Tracker

The Fitbit Inspire 2 Health & Fitness Tracker is one of the best fitness trackers for beginners based on our observations, and it is small (1.47 x 0.66 x 0.51 inches) and lightweight.

This fitness tracker is equipped with Active Zone Minutes that counts your time spent in any heart-pumping activity as long as it is faster than a brisk walk.

The great thing about such a fitness tracking feature is that you earn Active Minutes as you progress in your activity. There are also more than 20 exercise modes to track your fitness goals, such as calories burned, distance, and more!

Although it is not exactly a cheap fitness tracker, it does what it does as an activity tracking watch. We also especially like that it measures deep and REM sleep. To better understand your sleep quality every night, simply check the Sleep score.

Its wristband is made of flexible elastomer silicone that’s easy to clean, sweat-resistant, and lightweight.


  • On-wrist notifications
  • Packed with high-end features
  • Tracks all-day activity
  • Measures calories burned
  • 10 days of battery life (varies with features used)
  • With heart-rate monitoring feature
  • Small display
  • No built-in GPS
  • No altimeter

Don’t miss out! Buy this product here before it’s gone!

4. Amazon Halo

Amazon Halo is a feature-packed fitness tracker that measures not only your activities, but also body composition, sleep, and even the tone of your voice. How cool is that!

As one of the best fitness trackers on our list, after putting it to the test, this fitness tracker is designed mainly for fitness purposes. From design to features, this watch avoids any distractions.

And what’s nice about this technology unlike other fitness trackers is that the Halo sensor is that it does not have a screen. Yep, like a breath of fresh air.

It is the best fitness tracker as well in terms of wristbands. It’s unobtrusive and features a fabric band with a removable sensor capsule and Velcro-like clasp. There are three color combinations overall: rose gold with a light pink band, silver with a gray band, and black on a black band. 

To set up your Amazon Halo, put the Halo wristband inside the USB charging clip. The button on the tracker should be facing out.

Wait for a few seconds and a small white light will then illuminate, an indication that it’s now ready to pair. Then, download the Amazon Halo app and follow the instructions to complete the setup process.


  • With tone analysis
  • Body composition analyzer
  • Workouts, nutrition, and meditation support
  • Activity tracker: applies to both sedentary and active time
  • With heart rate and sleep tracking features
  • Wristband: Available in 3 sizes from 5.25-to-6-inches (small wrists) to 6.75-to-7.75-inches (large wrists).
  • Water-resistant
  • Measures fat percentage in the body (better indicator than BMI)
  • Battery life - 7 days (tone disabled), 2 days (tone enabled).
  • No display screen
  • Limited option if you decided not to opt for Amazon’s Halo membership after six months

Ready to buy it? Check out this link today!

5. Huawei Band 3 Pro

If it’s the smallest fitness watch you’re looking for, you won’t go wrong with Huawei Band 3 Pro. Compared to other trackers, this model has both substance and style. It has a built-in optical heart rate monitor that is tailored towards exercise enthusiasts and athletes alike.

The Huawei Band 3 Pro also has a water-resistant design and has a swim-tracking feature. It recognizes your swimming posture when you set it in sports mode.

We have found from using this product that, it also counts your steps, distance covered, pace, and time on a workout. Its connected GPS is designed for long-distance runners as it consumes less power compared to other fitness trackers.

You’ll also like the sleep tracking feature called TrueSleep. This companion app tracks the duration and quality of your sleep. Overall, with its fitness tracking capabilities, this is one of the best fitness trackers you can buy if you’re on a strict budget.


  • Long battery life
  • With a built-in heart rate monitor and GPS (low power consumption)
  • With swim tracking and sleep-tracking capabilities
  • With 6-Axis Inertial Sensor
  • Huawei Health APP supports worldwide languages.
  • Durable metal body
  • HD screen
  • GPS feature can be slow
  • No pulse oximeter for tracking blood oxygen saturation

Convinced? You can buy the product here! 

6. Garmin Vivosmart 4

As per our expertise, the Garmin Vivosmart 4 is not your traditional fitness tracker. It has automatic exercise detection and also has rep counting features for gym workouts.

With a sleeker and slimmer look, we consider this as the best fitness tracker for those looking for stress and energy tracking with blood oxygen and deep sleep data.

By energy tracking, what we mean is the body battery energy monitoring to give you a better idea of how well prepared you are for your next activity.

It also has VO2 Max testing, which is a nice metric for people who love CrossFit and HIIT. In addition, there’s a pulse oximeter sensor to detect sleep apnea.

Most fitness trackers don’t have all these features in one sports watch and this is why the Vivosmart 4 is among our top fitness trackers on this list!


  • With improved fitness features compared to its predecessors
  • With stress tracking feature
  • Battery life - 7 days (varies if you use more features, like GPS tracking)
  • With heart rate monitor
  • Easy to connect to your phone’s GPS
  • Decent accelerometer-based run tracking app2.4 GHz Radio Frequency
  • Fashionable design
  • With relaxation breathing timer
  • Small fitness band
  • The detailed sleep tracking feature
  • Helpful for those dieting and doing a variety of gym exercises
  • No activity reminders 
  • Screen visibility not as good as other trackers

If you want to try it out, here’s where you can buy it! 

7. Apple Watch Series 6

The Apple Watch Series 6 may not be in the category of the best cheap fitness trackers, but it has plenty of support fitness applications. These include sleep monitor, voice assistant, heart rate monitor, and elevation.

As shown by our tests, this Apple Watch GPS model also allows you to take calls and even reply to messages from your wrists. Through the ECG app in your Apple Watch, you can also check your heart rhythm. With its always-on display, the screen of the Apple Watch is also 2.5x brighter outdoors.

This watch also has an always-on altimeter so you can see your elevation in real-time. 


  • Sleep tracking: yes
  • Faster processor
  • The always-on display is brighter when used outdoors
  • Swimproof design
  • Easy to sync your favorite podcasts, music, and audiobooks
  • GPS tracker gives you accurate data
  • Expensive than other fitness GPS watches
  • Screen size is not as small as other watches on this list

View Deal at Amazon

What to Look for the Smallest Best Fitness Trackers

Part of this best buying advice (tech-guide) are the features that you need to look for in a fitness tracker.


Aesthetics are important because it represents your personal image like the one wearing the watch. So, pick a fitness tracker with a design that fits your style, be that minimalist or elegant. 

Battery Life

Battery life is, arguably, one of the most important features you have to look for when buying the best fitness tracker. There are now fitness trackers that can last for up to 7 to 21 days, depending on the usage. The longer the battery life, the better so you can use the awesome features of the watch or use your favorite fitness app longer!

Your fitness tracker(s) GPS helps the watch determine your exact location. This is important if you are outdoors. The same features in both high-end and cheap fitness trackers also accurately record speed, elevation, and distance during activities, like cycling and running.

Final Verdict: Which One Should You Buy?

After testing out as many fitness trackers as our team could, our top pick from this list would be the Garmin Vivosmart 4. Don’t get us wrong, we do love the other fitness watches here. It’s just that the Garmin Vivosmart 4 stood out in terms of features, price, and of course the size.

It has a slim design, long battery life, is safe for showering and swimming, has a wrist-based Pulse Ox sensor, with a step-counting feature, and has dedicated activity timers for runs, walks, strength training, pool swims, yoga, and others! Please note, though, that the fitness monitoring tools of this watch and its health data are not intended for monitoring any medical condition.

If you like this article, you might want to read our other reviews at

Nathan Lloyd, MSc

I’m a personal trainer, based in Boulder, Colorado.
I service clients physically in the Boulder area, mainly in the ONE Boulder Fitness Gym, but am also available for online consulting and coaching.

If you’re interested in my personal coaching programs, please contact me via the contact page.

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