9 Best Smartwatches with Blood Oxygen Sensors

If you’re looking for a smartwatch or fitness tracker with a built-in blood oxygen sensor, then you’ve come to the correct place. An optical blood oxygen monitor is included in the majority of smartwatches and fitness trackers.

You may learn a lot about your health and well-being by tracking your daily oxygen intake. However, going to the doctor regularly for a pulse oximetry test to assess your oxygen levels is not an alternative.

Fortunately, today’s smartwatches include an oxygen sensor that can tell you how much oxygen is flowing through your blood.

As a result, we’ve compiled a list of the 9 best smartwatches with blood oxygen sensors now available on Amazon. So let’s get started!

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Top 9 Best Smartwatches with Blood Oxygen Sensor

Smartwatches with an oxygen sensor don’t only have an oxygen sensor; they also have many other excellent functions.

We’ll go through the key characteristics of each watch on the list so you can make an informed decision.

Let’s take a closer look at them.

1. New Apple Watch Series 6

smartwatch with blood oxygen sensor

In every model, Apple comes up with new and unique concepts and services. Apple has finally included an oxygen sensor in the Apple Watch Series 6.

The only Apple smartwatch featuring a blood oxygen sensor is the Series 6 Apple Watch. It features an oxygen sensor, heart rate, and ECG monitoring, making it an excellent fitness tracker.

It also saves a screenshot of the data to review and analyze your oxygen levels later, which helps record your SpO2 levels.

However, because it is not 100 per cent accurate, people may not utilize it for therapeutic purposes. However, it is helpful for routine checkups.

Other Features

Aside from fitness and health monitoring, this watch is a terrific purchase because it features a powerful processor that speeds up everything on the watch.

It also has a beautiful always-on display and robust metal construction. You can use this wristwatch to send text messages, make calls, and listen to Apple music.

Unfortunately, the Apple Watch’s main flaw is that it can only work with an iPhone. Due to this, Android users will be unable to utilize this luxury smartwatch.

Overall, if you’re looking for the best smartwatch with an oxygen sensor, the Apple Watch with a pulse oximeter is a fantastic choice.

  • Always-on display
  • Sleek design
  • FDA Approved ECG
  • Water resistance up to 50 meters
  • Built-in GPS
  • Expensive
  • Poor battery life
  • It only works with iPhone

2. SAMSUNG Galaxy Watch Active2

watch with blood oxygen sensor

The Samsung Watch Active 2 is the best choice for a quality Samsung smartwatch with an oximeter that works with Android devices. It contains a SpO2 sensor so you can observe how much oxygen your blood is consuming.

It has a simple and classy design that looks great on the wrist. The watch has 4GB of internal storage, which is helpful to download music from Spotify to keep you entertained while you work out.

The Samsung Galaxy Watch Active 2 is also the most sophisticated health and fitness wristwatch on the market. Step counting, sleep tracking, heart rate tracking, GPS, ECG, and much more are all included in this watch.

It measures blood pressure using similar technology as the Galaxy Watch3. It also provides a precise reading in terms of accuracy.

The Samsung Galaxy Watch Active 2 also has a feature that tracks how long you haven’t moved and then reminds you to do so. It also includes exercises with the same goal in mind.

It also has GPS tracking and is water-resistant up to 50 feet, so you don’t have to remove it when swimming or bathing.

Therefore, the Samsung Galaxy Watch Active 2 could be a good option if you’re seeking the best smartwatch for SpO2 monitoring.

  • Sleek design
  • Fall detection
  • Built-in GPS
  • Great durability
  • Built-in music storage
  • Compatible with Android and Apple
  • Irregular heart rate alert
  • Costly


3. Garmin Forerunner 245

watches having blood oxygen sensor

When it comes to smartwatches, Garmin is the sole leader. Although the brand is recognized for its sports and fitness tracking capabilities, it also prioritizes health aspects.

If you want to evaluate your running, jogging, or cycling activities, the Garmin Forerunner 245 is the watch for you. It has a SpO2 sensor that measures the oxygen level in your blood, which is very useful when running.

It’s an excellent alternative for anyone who wishes to monitor their blood oxygen level at any time during the day, especially sprint triathlons.

Other Features

It has a 5 ATM water-resistant rating. As a result, you may swim up to 50 meters underwater with this timepiece.

Because it has a built-in GPS, you can use it for outdoor activities like trekking, long-running, and other sports that demand regular SpO2 monitoring.

Furthermore, the heart rate tracking and SpO2 capabilities assist this smartwatch in precisely measuring sleep patterns.

Also, it offers a 7-day battery backup. Depending on the settings and functions you utilize, the battery life may change.

Thus, the Forerunner 245 running watch is perfect for runners of all levels because it has many advanced functions.

  • Accurate Blood Oxygen level monitoring
  • Good battery life
  • Durable
  • Water resistance of 5 ATM
  • Built-in GPS
  • No altimeter
  • Misses mobile payment app

4. Fitbit Sense Advanced Smartwatch

smartwatches having oxygen sensor

In 2021, Fitbit Sense is another best smartwatch with blood oxygen sensor SpO2. It is the most recent addition to the Fitbit family. It is Fitbit’s latest technologically advanced smartwatch to date.

This smartwatch detects your blood oxygen level correctly and keeps you informed about your health. It also tells you about your cardiac health.

Moreover, it correctly measures your heart rate. The Fitbit ECG app can also be used to track the rhythm of the heart.

When it comes to fitness, this timepiece can help you out a lot. It keeps track of your activity as well as your calorie intake.

When you sleep, it also checks and analyses your skin temperature from your wrist. As a result, the watch is exceptionally dependable and performs admirably in terms of fitness tracking.

It’s also waterproof to a depth of 50 meters. When compared to Apple wearables, its battery life of 6 days is highly excellent.

built-in microphone and speaker are also included with the Fitbit sense. It’s also equipped with GPS. Furthermore, you can use the watch to answer calls and send texts without having to take your phone out of your pocket.

Ultimately, this watch delivers excellent results and is considered the best smartwatch for oxygen measurement.

  • ECG App approved by the FDA
  • Premium design
  • Shows accurate oxygen levels
  • Built-in GPS
  • Sleep tracking
  • On-board music storage
  • Pricey

5. Garmin Venu 2

If you’re searching for the top smartwatch with an oxygen sensor, the Garmin Venu 2 is a good option.

This smartwatch has an integrated oxygen sensor that provides an accurate readout of your blood oxygen concentration. It also has a feature for sleep tracking and stress assessment.

The Garmin Venu 2 is composed of high-quality materials and has a stylish appearance. The watch has a great fit and is relatively light, making it very comfortable to wear.

It has a 1.1-inch AMOLED always-on display that makes it very easy to view the display whether you’re inside or outside.

It also comes with Corning Gorilla Glass 3 to help protect the gadget from damage done by collisions.

The Venu 2 is built for outdoor use, much like any other Garmin wearable. It contains several functions for tracking outdoor activities, including riding, jogging, skiing, and climbing.

Furthermore, you may receive phone notifications, message alerts, email, and even social media updates immediately on your wrist when you wear this wristwatch.

The Garmin watch’s <span data-preserver-spaces=”true”>battery lasts up to 10 days in smartwatch mode, while battery saver mode lasts 11 days.

Consequently, it’s the best watch with a pulse oximeter that also includes all of the fitness monitoring sensors you’ll need to keep track of your daily sports activities.

  • Always-on display
  • Built-in GPS
  • Stylish
  • Comfortable to wear
  • Accurate heart monitoring
  • Very Expensive
  • No map

6. Ticwatch Pro 3 GPS Smart Watch

If you’re looking for a high-quality smartwatch for blood pressure monitoring, the Ticwatch Pro 3 is a great choice. It also has many other features, such as heart rate monitoring and sleep tracking.

This powerful smartwatch is equipped with all of the necessary sensors to monitor your active lifestyle. Furthermore, the heart rate and SpO2 sensors are pretty precise compared to other fitness smartwatches on the market today.

This fitness smartwatch can also keep track of your sleep. It takes health monitoring to another level with powerful sleep-tracking functions. Users can even use this smartwatch to detect sleep disorders.

In addition, this smartwatch helps make calls and send texts. It also has a unique dual-screen, with an LCD panel placed on top of the wristwatch screen. It also has Google Maps built-in.

It also integrates with more than 13 sports applications to monitor both indoor and outdoor activities. You don’t need to carry a phone when cycling or swimming because it has integrated GPS.

The Tic Watch Pro 3 has a battery that lasts two days in regular mode and 45 days in primary mode. It is twice the battery life of any other Wear OS smartwatch.

It is, in the end, the best smartwatch with a blood oxygen sensor.

  • Dual display
  • Water-resistant up to 50 meters
  • Google pay
  • Built-in speaker
  • Accurately monitors heart rate
  • NO ECG
  • Lacks blood pressure monitoring
  • Not a durable watch


The Polar Vantage M is the last smartwatch on our list. It’s another excellent smartwatch with a slew of health and smart abilities. It contains a SpO2 sensor that monitors your blood oxygen levels while you’re doing different activities.

The Polar Vantage M is a less expensive alternative to a high-end fitness smartwatch.

It offers all of the essential functions, such as fitness and heart rate tracking, and enough unique training options to keep runners thrilled. It also includes some enjoyable features, such as meditation and stretching exercises.

Thanks to its sleek, primary, and compact design, it’s also pleasant to wear all day.

Furthermore, the Polar Vantage M is a multisport GPS smartwatch that tracks your activities and assists you in improving your health.

The smartwatch’s battery life is also rather impressive. After each recharge, the battery can last up to 30 hours.

So, you should not look even further than this if you want the ultimate fitness tracker with an oximeter.

  • 130+ sport options
  • Changeable straps
  • Extended battery life
  • Affordable price
  • Sleek and simple
  • On-board GPS
  • Lacks touch screen

Amazfit GTS 2 Mini Smartwatch

smartwatch with blood oxygen sensor

No doubt, Amazfit GTS 2 Mini is a more helpful smartwatch than most of its competitors because of the SpO2 sensor.

Therefore, you can perform this test quickly, and the results will be substantially identical to those obtained with a certified oximeter.

When it comes to displaying, the GTS 2 Mini is available in black, pink, and green, with a 40mm case and an 8.95mm thickness. Polycarbonate and an aluminum alloy are the building material of its casing.

You’ll also get dozens of stunning watch faces, with the majority of them featuring a unique Always-on Display.

Moreover, a GPS tracker allows you to track routes and make your trip more convenient and enjoyable.

Other Features

The Amazfit GTS2 Mini has a 50m water-resistant rating. It means you can wear it while showering or swimming for brief periods.

Aside from that, it can keep track of your steps. So you can see how many steps you’ve taken and how many calories you’ve burned.

It can also track the quality of your sleep and your stress level.

The watch has an Alexa built-in so that you may control it with your voice. Users may also use this watch to make and receive phone calls.

The watch boasts a 14-day maximum runtime, which is a fantastic feature. Furthermore, charging the entirely exhausted battery took 1:45 hours.

Overall, this timepiece will be the best smartwatch with a blood oxygen sensor in 2021.

  • Stylish look
  • Vibrant AMOLED display
  • Monitor heart rate
  • Long-term durability
  • Sleep tracking
  • No third-party app support

Yamay Smartwatch

YAMAY should be at the top of your list if you’re looking for a smartwatch with an oxygen sensor at a reasonable price. The watch is reasonably priced, but the functions it offers are pretty sophisticated.

This watch’s build quality and design are both elegant and long-lasting. 

It has a smooth round screen with no protruding bezel, giving it a luxurious and attractive appearance. The watch has a sensitive touch screen and a 1.28′′ TFT display.

The strap is silicone rubber and has a typical ardillon buckle, making it very pleasant to use daily.

Its oxygen sensor can detect the amount of oxygen in your blood, and the reading you’ll obtain is relatively accurate. Still, because the watch is inexpensive, you shouldn’t compare it to a specialist oximeter.

Other Features

Aside from the oxygen sensor, the watch contains other health-tracking capabilities such as heart monitoring, sleep tracking, and blood pressure monitoring. As a result, you’re receiving a lot more value for your money.

The battery life of the watch is quite impressive. It runs efficiently for 10 to 12 days on a single charge. The battery lasts a long time, so you don’t have to charge it every day.

Overall, it’s the most affordable SpO2 smartwatch.

  • Affordable
  • IP68 Waterproof
  • Comfortable to wear
  • Extended battery life
  • Durable
  • Lacks always-on display

Best Smartwatch with Oxygen Sensor – Buyer’s Guide

When choosing an oxygen sensor watch, there are several factors to consider. These aspects will assist you in achieving more consistent results, which will allow you to live a better life.

Oxygen Sensor

The oxygen sensor is the most crucial feature, especially if you are searching for a smartwatch with an oxygen sensor; hence it is a must-have in the smartwatch.

Some watches can only record blood oxygen saturation at night, while others can measure it continually. 

If you have respiratory problems, you should invest in a wristwatch that can measure blood oxygen levels at any time.

Display and Design

While purchasing an oxygen sensor smartwatch, always check that the fitness tracker is light and comfortable to wear. 

A lightweight and compact fitness tracker will be more convenient because you’ll be wearing it for an extended period.

Also, make sure the display is visible to you, mainly if you are a senior or have visual issues.


Please don’t buy a smartwatch until you’re sure it’ll operate with your phone. The best oxygen sensor watches, on the other hand, must work with both Android and iOS devices.


A smartwatch is worthless if it is not accurate. Before purchasing any watch with blood oxygen sensor, ensure that it is accurate. 

The majority of smartwatches have poor sensors and produce misleading results, which might be problematic in the future.

Additional Functions

Fitness watches routinely measure many things in the body. The watch should track blood pressure, sleep quality, and stress levels with an oxygen sensor. 

It should also have a GPS tracker to help you with your travels. As a result, select the smartwatch that best suits your needs and lifestyle.

Battery life

The battery life of any smartwatch is essential. Pick a watch with longer battery life if you don’t want to charge it every 2-3 hours of use.

Please note that the quantity of usage impacts how long a device’s battery lasts.


Finally, here are seven of the best smartwatches with blood oxygen sensors. These watches can be used to determine your blood oxygen level. These watches, however, cannot be used in place of certified medical devices.

Finally, if you want a smartwatch with an oxygen sensor for your Apple mobile, the New Apple Watch Series 6 is the ideal watch for you. The Samsung Galaxy Watch Active 2 or Fitbit Sense <span data-preserver-spaces=”true”>are the two best options for Android phone users.

I hope you found this article on the best smartwatch with a blood oxygen sensor helpful in your search for a new fitness watch.

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