Best Fitness Tracker With Vo2 Max – Top Choices in 2021

As a professional trainer, having the ability to measure vo2max is very useful, thus, I have decided to write on the best fitness tracker with Vo2 Max.

Today the world is being ruled by technology. The daily invention of new gadgets is mesmerizing. So much that it has taken over the health and fitness industry too.
Many modern health apps and gadgets are assisting us to maintain health records
Today we can measure our blood sugar, blood pressure, heart rate, pulse, body temperature all using electronic gadgets.
For many years these measurements have been considered to be important or as they are called “vital signs” of a healthy body.
However, nowadays there is an emerging trend of recording your VO2 Max. Wondering what is VO2max and how can you record it? Let’s get to know about it below.

Best Fitness Tracker With VO2 MAX

Before I give you a list of some of the best fitness trackers which capable of tracking vo2max accurately, let’s try to understand what it is and why is it important.

What is VO2 max?

VO2max is a measure of cardiorespiratory rate. Also known as aerobic respiration rate, it is a measure of the rate of oxygen taken in by the lungs and delivered to the bloodstream during exercise. Its normal value is 35 to 40 mL/kg/min.

The main idea beyond a VO2 Max test is to check how fit you are.

The declining capacity for oxygen transport is alarming. Thus, it can not only tell the current health status but also predict future risks.

As I myself experienced, in labs measuring VO2max is a difficult process. The patient has to go through some cumbersome tasks like an exhausting 12 minutes of treadmill or other heavy exercises using an oxygen mask.

I would prefer wearing a gadget and doing my routine exercise while it measures all the needed information. Let’s have a look at some amazing gadgets that will do this job for you.

Vo2 Max stats on Garmin(left) and Apple apps

How Do Fitness Trackers track Vo2 Max?

The modern wearable fitness trackers are tracking Vo2 Max by using an algorithm that uses a formula that includes data such as your resting heart rate, age, sex, weight, and other personal information.

The Vo2 Max test done by the trackers is different for each brand however, in general, it will require a 10 to 20 minutes run or walk outdoors while using a built-in or connected GPS.

All the fitness trackers are giving an estimation of your Vo2 Max level based on the data that you provide and that is being collected.

You can read more on VO2 Max Estimate here on the Garmin support center.

How accurate is the VO2 Max tracking done by the fitness trackers is and which brand is the most accurate?

First of all, using a chest strap will always give a more accurate HR data than a wrist-based HR monitor – better HR tracking means better and more accurate VO2 Max reading.
You can read more about the best fitness trackers with a chest strap here on my website.

As for the Vo2 Max accuracy of the modern fitness trackers.
I have read some researches and comparisons done by different groups and my main conclusion is that all the fitness trackers will not give 100 percent accuracy.
And it varies from one individual to another.

In fact, you should expect a deviation of 5 points up or down.

Some researches showed Garmin as the most accurate, others Apple and some Fitbit and it will be hard to determine which brand is more accurate.

My personal preference brand when it comes to a sports watch that measures Vo2 Max would be Garmin.

Here are other Garmin’s devices that can measure Vo2 Max:

Product ImageProduct NameOur Rating
Fenix 3 HR9.8
Fenix 5/5S/5X/69.8
Garmin vívoactive 3 & 49.7
Garmin vívosmart 49.8

Pairing your Garmin device with Garmin Chest Strap HRM will make it a very accurate and serious tracking device.

Another point that I had noticed and it is worth to talk about is the fact that Vo2 Max tracking becomes more accurate after a few months.
It seems that the watch is learning you for the first 2-3 months and after you ran a few runs with it, using the GPS, it becomes more accurate.

Here are some tips from Garmin for measuring Vo2 Max

My main conclusion is that, yes, none of the fitness trackers will give you 100 percent accuracy Vo2 Max, however, it will serve great as a tool that shows improvement.

Using the same watch for a period of time will give you a good comparison of your Vo2 Max measured in previous months from which you will be able to get your fitness progression.

And these are some of the best fitness trackers that track Vo2 Max

Product ImageProduct NameOur Rating
Fitbit Ionic9.7
Garmin Forerunner 9359.8
Jabra Sport Elite Smart Earbuds9.7
Apple watch series 4 & 59.8
ViATOM Wearable Oxygen Monitor9.8

1. Fitbit Ionic – A Fitbit device with a built-in GPS and Vo2 Max

VO2max can be measured more precisely if the gadget also measures GPS. This is because then it will know your amount of activity.

I have reviewed the Ionic here on my website so if you want to read more about you are more than welcome to do so.

Fitbit ionic is an all in one product offering multiple features. Having a built-in GPS, it measures your heart rate and VO2max and presents it in the app as a cardio fitness score.

Also, it has a personalized coaching feature and can store all your favorite music and apps. What else can one ever wish for?

The Ionic is available on Amazon, Check out its current price.


  • Crisp Graphics and Durable Design
  • Comes in three color variations
  • Get personalized coaching
  • Measures sleep stages, resting heart rate, VO2max and track women health
  • Build in GPS
  • Water resistance
  • Stores and plays music
  • Connects with blue tooth
  • Gets your Notifications and offers quick reply features
  • Multiday battery


  • Quick reply feature only available for android

2. Garmin Forerunner 935 – Best Garmin Device With Vo2 Max

Forerunner 935 is a wearable smartwatch by Garmin which measures heart rate and VO2max. It is my most loved fitness assistant.

Check out the Garmin Forerunner 935 on Amazon.

It takes care of my fitness goals and helps me achieve them on a daily basis. Moreover, it keeps a record of my fitness level by measuring heart rate. With an amazing battery life of two weeks, it is always there for me.


  • Comfortable and lightweight (49grams)
  • Uses a training status tool to measure training history and recovery and show if you are overreaching.
  • Anaerobic training effect lets you know if you are pushing the limits
  • The training load feature measures your average exercise load.
  • It also measures your vertical ratio and verticle oscillation to determine your training technique
  • It provides options to switch between activities like swimming, racing or cycling.
  • Offers smart connect features with which you can share your fitness routine with friends or even in groups.
  • Sets daily fitness goals
  • The unbelievable battery life of two weeks in smartwatch mode.


  • Activity and fitness tracking might vary a bit from the original.

3. Jabra Sport Elite Smart Earbuds – Fitness Tracking Ear Buds With Vo2 Max

I have recently mentioned those in my article on the best wireless earbuds with a heart rate monitor.

Who doesn’t have a workout playlist? But what about those tangling wires of your earphones coming in your way? Not a problem now when you have Jabra Sport Elite Smart earbuds. While listening to your favorite tunes you can tone your muscles well.

Who doesn’t have a workout playlist? But what about those tangling wires of your earphones coming in your way? Not a problem now when you have Jabra Sport Elite Smart earbuds. While listening to your favorite tunes you can tone your muscles well.

Check out the Jabra Sport Elite Smart Earbuds on Amazon.

Its sound cancellation feature frees you of your surroundings. It’s stylish, trendy as well as smart. What’s more? it uses Jabra Sport Life App to record your heart rate and VO2 max. Also, it provides online coaching.


  • 4.5 hours of battery life with a portable charger
  • Comfortable fitting options for all-day use.
  • Provides both options either cancel surrounding sounds or be more aware with hear through the feature.
  • Measures heart rate and VO2max
  • Audio coaching
  • Waterproof
  • 3-year warranty
  • Available in 2 colors


  • Cost depends on the features it provides other than regular earphones

4. Apple watch series 4 & 5

The popular Apple watch can also track Vo2 Max.

I have found a nice article that will explain more about it.

5. ViATOM Wearable Oxygen Monitor

Another device that was brought to my attention recently is this new VO2 max monitor by Viatom.

This device in opposite to the others of this list will fit on your finger like a ring and by the reviews that it gets, it looks like an accurate monitor.

Another advantage of this device is the free adapted app – The Vihealth APP, which is very easy to use and will give you data on your HR, Vo2, and motion in graphic reports and trends.

You can check it out on Amazon.

More popular watches with VO2 MAX

Product ImageProduct NameOur Rating
Withings/Nokia Steel HR Sport9.8
Huami Amazfit Stratos9.7
Amazfit Bip9.7


All these gadgets serve as an excellent fitness partner. They not only measure VO2 Max or heart rate but also track other fitness metrics. Besides, some of them provide live coaching too. Indeed, they are a must-have in your collection. But be careful that they cannot replace medical professionals. In case of any health issue do not rely on them completely and get regular checkups.

I hope that I helped you with finding the best fitness tracker with vo2 max.
If you have any comments, please share it with us in the comments section below.