Select City

What is SpO2 in a smartwatch? Are Smartwatches with Spo2 Reliable?


Smartwatches with Spo2 help you keep track of your health and fitness. Oximeters, which are used to monitor oxygen saturation levels, are flying off the shelves in medical stores as the coronavirus pandemic enters its new wave. Continue reading to find out if these smartwatches with SpO2 are even worth it and also a curated list of the best smartwatches with a SpO2 monitor.

- Updated: 23rd Feb 2023, 03:57 IST
  • 1
    What do you understand by SpO
  • 2
    How does a smartwatch with SpO2 measure blood oxygen?
  • 3
    Best 5 smartwatches with SpO2 to monitor your blood oxygen levels
    • Apple Watch Series 7
    • Samsung Galaxy Watch 3
    • Noise ColorFit Pro 3
    • OnePlus Smartwatch
    • Amazfit Bip U
  • 4

If you’re a big fan of smartwatches, you’re probably aware that SpO2 monitoring is now a standard feature. It’s beneficial when tracking your sleep or when you’re at a high altitude. It can also detect sleep apnea and other respiratory conditions requiring medical treatment. We’ve compiled a list of the best blood oxygen monitoring smartwatches.

Also Read: This Vivo Device Goes Silently Official in Singapore – Price & Specs

What do you understand by SpO2?

SpO2 sensors, also called pulse oximeters, measure blood oxygen levels or oxygen saturation in your blood. It is undoubtedly one of the most critical vital signs to monitor in a medical setting because, as you may know, oxygen is essential to humans, and its absence can be fatal. As a result, wearables such as activity trackers and smartwatches now include the technology to measure this vital health indicator. In this sense, the smartwatch is concerned with Sp02, or peripheral oxygen saturation, which is critical for continuous blood oxygen level assessment.

SpO2 levels are measured in percentages, and a standard level should be between 95 and 100 per cent for most people. Normal values might range from 88-92 per cent for people with chronic lung diseases such as chronic obstructive pulmonary disease.

Also read: Looking For The Best Mini Laptop? Here Are Our Top Picks

How does a smartwatch with SpO2 measure blood oxygen?

Another form of SpO2 technology used by smartwatches is reflectance pulse oximetry, which simply counts light reflected rather than light flowing through the body. In contrast to the transmissive approach, blood oxygen levels can be measured in different areas of the body, such as the chest and wrist.

The light transmitted to the human surface is reflected from the subcutaneous tissue or bone to the wristwatch sensor, which uses the difference between the light emitted and reflected to measure blood oxygen level. As a result, smartwatches can use it to detect blood SpO2.

It’s crucial to note that a lower measurement can occasionally be caused by the device not being used or appropriately calibrated. If you have a smartwatch that shows you have low SpO2 readings, it’s always a good idea to seek medical help right away if you’re feeling sick or short of breath.

Best 5 smartwatches with SpO2 to monitor your blood oxygen levels

We live in a world that has become sophisticated in every way, and smartphones have made them a requirement for everyone. Smartwatches are one of the handiest smart devices that most of us would like to have. In many ways, these smartwatches are excellent companions. However, selecting the ideal one is never easy with so many smartwatches on the market. As a result, we’ve curated a list of the best smartwatches with a SpO2 monitor.

Apple Watch Series 7₹53,900
Samsung Galaxy Watch 3 ₹15,990
OnePlus Smartwatch₹14,999
Noise ColorFit Pro 3 ₹3,499
Amazfit Bip U₹2,999

Apple Watch Series 7

Smartwatches with SpO2

The Apple Watch Series 7 is the most popular and best smartwatch with SpO2 in the world w. Hence it’s first on the list. The popular wearable now has an IP68 certification, which means it can withstand dust and water, allowing you to swim with it. The Always-On mode will enable you to preserve more battery life without sacrificing performance or features. This Apple Watch can run apps, take calls, and respond to messages.  You can activate e-SIM and use most of its functions on its own if you have the cellular variant. All of the features perform as claimed, and the Apple Watch’s 18-hour battery life sets it apart from the competition. You will have to pay a premium, but it is well worth it.

Samsung Galaxy Watch 3

Smartwatches with SpO2

The Samsung Galaxy Watch 3 is powered by an Exynos 9110 CPU and has a circular 1.4-inch Super AMOLED display with Corning Gorilla Glass DX protection. It is one of the best smartwatches with a SpO2 monitor with an accelerometer, heart rate sensor, gyroscope, and 8GB of internal memory. It measures your SpO2 levels using a red LED and infrared rays, allowing you to keep track of your blood oxygen saturation. It has a fall detection feature that sends an SOS message to your emergency contacts.

Also read: 5 Most Expensive Laptops to Buy in India[January 2022]

Noise ColorFit Pro 3

Smartwatches with SpO2

The Noise Colorfit Pro 3 has a complete touch interface and a rectangular 1.55-inch HD LCD screen. It has an accelerometer, gyroscope, heart rate sensor, and blood oxygen monitoring. It’s water and dust resistant to IP68 standards and lets you manage calls, view notifications, control music playback, and more. It has a battery life of up to 10 days on a single charge. This also has one of the best smartwatches with a SpO2 monitor.

Also Read: Nokia 5.4 Review – Style Packed With Stock Android

OnePlus Smartwatch

Smartwatches with SpO2

The OnePlus Smart Watch with a SpO2 monitor is reported to have seamless Bluetooth 5.0 connectivity. It has a 1.39-inch AMOLED display that alerts you to incoming calls and messages. It should also allow you to make calls without using your hands. Over 110 training kinds are available on the smartwatch, allowing you to track your fitness objectives with daily information. With features like SpO2 monitoring, a heart rate tracker, a stress tracker, and a sedentary reminder, the OnePlus Watch can help you keep track of your health.

Amazfit Bip U

amazfit bip u

A 1.43-inch always-on display is included on the Amazfit Bip U smartwatch. An optical heart rate sensor, SpO2 monitoring, 3-axis accelerometer, and barometer are all included. It has a water resistance rating of 5 ATM and can be worn when swimming. It has a battery life of up to 5 days when used heavily and 9 days when used moderately. This is yet another smartwatch with a SpO2 monitor.

Also read: 5 Best Laptop Under 50000 to Buy in India [January 2022]


While it is convenient to check your blood oxygen level on your wrist at any time, the reflectance-based oximetry used by smartwatches is less developed than the transmissive approach. Aside from that, detecting blood oxygen levels on smartwatches falls short of clinical standards.

The SpO2 monitor in smartwatches, in reality, has no medical accreditation, indicating that it is not intended for diagnosis or wellness. It’s more for fitness purposes because the findings are usually inaccurate. Stay still when taking SpO2 measures on your smartwatch to achieve the best results.

Also read: Xiaomi Working on 200MP Camera Smartphone.


Featured Videos

iPhone 15 Wonderlust Launch Event: What To Expect And How To Watch?
11th Sep 2023
Apple Watch Series 9: Here Is All That Happened In The Wonderlust Event
10th Aug 2023
Samsung Games Portal: Everything You Need to Know
12th Jul 2023
Here’s The Best Way To Buy Refurbished Samsung Galaxy Note 20 Now!
11th Jul 2023
Apple MacBook Air 15 Inch: An Expensive Yet Unbeatable Laptop Choice In 2024
10th Jul 2023

Highlights of the Story

  • Many fitness trackers now have a SpO2 sensor to detect your blood oxygen saturation.
  • If you have a smartwatch that shows you have low SpO₂ readings, it’s always a good idea to seek medical help right away if you’re feeling sick or short of breath.
  • We’ve curated a list of the best smartwatches with a SpO2 monitor.