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Top 9 Smartwatches With Continuous SpO2 Blood Oxygen Monitor

There are tons of smartwatches with oxygen sensors on the market. However, only a few of them offer continuous or automatic SpO2 monitoring. You’ll get 24 x 7 heart rate tracking, but it’s rare to find the same for blood oxygen. Thankfully, for those interested, we’ve managed to curate a list of smartwatches with a continuous SpO2 blood oxygen monitor you can buy in India and the USA.

Best Smartwatches with Continuous SpO2 Blood Oxygen

Smartwatches with Continuous SpO2 Monitor

We have found the nine best smartwatches and smart bands that feature continuous SpO2 blood oxygen monitoring. Some measure blood oxygen levels 24 x 7 while others measure it during sleep. Read on.

1. Samsung Galaxy Watch 4

The Galaxy Watch 4 has an optical blood oxygen sensor embedded in the Samsung BioActive Sensor. It allows you to check your blood oxygen levels anytime through the watch. Along with that, it also has continuous SpO2 tracking while sleeping that you can enable from settings. This feature continuously measures your blood oxygen levels when you are sleeping.

Talking about other features, the Galaxy Watch 4 has body composition measurement, ECG and blood pressure monitoring, 5-ATM and IP68 water resistance, and advanced sleep monitoring. It is powered by Google’s Wear OS, making it a complete Android smartwatch with most Google services.

Galaxy Watch 4 With Blood Oxygen During Sleep

Key Features:

  • Display: 1.2″ & 1.4″ AMOLED
  • OS: Wear OS
  • RAM: 1.5GB
  • Storage: 16GB
  • Water/Dust Rating: 5-ATM & IP68
  • Special Features: ECG & Blood Pressure Monitoring


  • Impressive AMOLED Display
  • Built-in Speaker and Microphone
  • Advanced Health Tracking
  • Wear OS with Google Services


2. Huawei Band 6

The Huawei Band 6 comes with all-day SpO2 monitoring. It measures your blood oxygen throughout the day and notifies you with alert vibration if your SpO2 levels go too low. It has a built-in blood oxygen saturation system that helps to monitor the blood oxygen with a dedicated sensor.

Huawei Band 6 All-day SpO2 Monitoring

Some of the highlighting features of Huawei Band 6 include a rectangular AMOLED display, 24×7 heart rate and stress monitoring, sleep tracking, 96 workout modes, and up to 2 weeks of battery life.

Key Features:

  • Display: 1.47″ AMOLED
  • Battery Life: Up to 14 Days
  • Water/Dust Rating: 5-ATM
  • Workout Modes: 96


  • Bigger AMOLED Display
  • All Day SpO2 Monitoring
  • 96 Workout Modes
  • Up to 2 Weeks of Battery Life


3. Redmi Watch 2 Lite

Besides letting you manually measure your SpO2 anytime, the Redmi Watch 2 Lite features continuous SpO2 measurement during sleep. It measures your SpO2 level during sleep at intervals of 10 or 30 minutes, whatever you choose from the settings.

The Redmi Watch 2 Lite (review) has exciting features like a flat-edge display, multi-system standalone GPS, 5-ATM water resistance, up to 10 days battery life, stress and sleep monitoring, and over 100 sports modes.

Redmi Watch 2 Lite with Continuous SpO2 Tracking

Key Features:

  • Display: 1.55″ LCD
  • Battery Life: Up to 10 Days
  • Water/Dust Rating: 5-ATM
  • Workout Modes: 100+
  • GPS: Multi-System Standalone GPS


  • Large Display Area
  • Over 100 Sports Modes
  • Built-in GPS Tracking
  • Seamless Experience with Mi Fitness App


  • Lacks AMOLED Display
  • Slightly Laggy UI
  • No Adaptive Brightness

4. Oppo Smart Band

The Oppo Smart Band has continuous SpO2 monitoring during sleep. You can measure your blood oxygen saturation anytime during the day and enable continuous SpO2 monitoring, which will track the variability of oxygen levels during sleep.

Talking about the features, the Oppo Band has an AMOLED display, up to 12 days of battery life, 5-ATM water resistance, 12 workout modes, over 40 watch faces, and real-time heart rate monitoring.

Oppo Band Continuous SpO2 Monitor

Key Features:

  • Display: 1.1″ AMOLED
  • Battery Life: Up to 12 Days
  • Water/Dust Rating: 5-ATM
  • Workout Modes: 12


  • Impressive Display with 100% DCI-P3 Color Gamut
  • Comes with a Style Strap


  • Smaller Display Size

5. OnePlus Smart Band

The OnePlus Smart Band has an optical SpO2 blood oxygen sensor. You can track your SpO2 manually at anytime throughout your day. It also comes with continuous SpO2 monitoring while sleeping, which can be enabled from the app. It will also measure the blood oxygen levels variability during your sleep cycle.

The OnePlus Smart Band also offers useful features like sleep tracking, 5-ATM & IP68 water resistance, up to 14 days of battery life, 13 exercise modes, and seamless connectivity with the OnePlus Health app.

OnePlus Band Continuous Blood Oxygen Monitor

Key Features:

  • Display: 1.1″ AMOLED
  • Battery Life: Up to 14 Days
  • Water/Dust Rating: 5-ATM + IP68
  • Workout Modes: 13


  • Vibrant Display with Brighter Colors
  • Seamless App Connectivity


  • Smaller Display Size

6. GOQii Vital 4.0

GOQii Vital 4.0 is a smart fitness band with a dedicated continuous SpO2 blood oxygen monitor. It can measure your blood oxygen levels during sleep and gives you a better idea of variations in your blood oxygen levels.

The GOQii Vital 4.0 includes some very useful health-tracking features. You get 17 exercise modes, a body temperature monitor, blood pressure monitor, 24×7 heart rate monitor, and sleep tracking. This fitness tracker has an AMOLED display, up to 10 days of battery life, and IP68 water and dust resistant rating.

Key Features:

  • Display: AMOLED (120×240 pixels)
  • Battery Life: Up to 10 Days
  • Water/Dust Rating: IP68
  • Workout Modes: 17
  • Special Feature: Connect with Doctors and Coaches via GOQii App


  • Better Colorful AMOLED Display
  • Personal Training by Official Coaches through GOQii App
  • Features Blood Pressure and Body Temperature Monitoring


  • Laggy UI
  • Comes with Bluetooth Version 4.0

7. Xiaomi Mi Band 7

The Mi Band 7 is the latest offering by Xiaomi. As an upgrade over Mi Band 6, the brand has added the continuous SpO2 blood oxygen monitoring feature this time. It can measure your blood oxygen levels continuously and send low oxygen levels alerts with vibration.

Talking about other features, the Mi Band 7 has a pill-shaped AMOLED display with the always-on display feature and 2.5D glass. It has connected GPS, up to 15 days of battery life, a PAI health assessment system, 5-ATM water resistance, and 120 sports modes.

Mi Band 7 Continuous SpO2 Monitor

Key Features:

  • Display: 1.62″ AMOLED
  • Battery Life: Up to 15 Days
  • Water/Dust Rating: 5-ATM
  • Workout Modes: 120
  • GPS: Connected GPS


  • Crisp and Vibrant Display with Smooth Scrolling
  • Enough Sports Modes
  • Seamless App Experience with Mi Fitness
  • Always-on Display


  • Still No Physical Button for Easy Access
  • No Built-in GPS

8. Garmin Fenix 7

The Garmin Fenix 7 is a premium smartwatch with an advanced health monitoring system. It also has a continuous SpO2 monitoring feature that can measure your blood oxygen levels during sleep and can be enabled directly from the watch.

Fenix 7 is not an ordinary smartwatch. It features a large 1.3″ display and 47 mm fiber-reinforced polymer case and is tested to U.S. military standards for thermal, shock, and water resistance. Moreover, it has a built-in Multi-GNSS satellite tracking system that shows you an accurate path for travel.

Garmin SpO2 History Graph

Along with these features, it can give up to 57 days of battery life in power-saving mode and up to 18 days in smartwatch mode.

Key Features:

  • Display: 1.3″ AMOLED
  • Battery Life: Up to 18 Days in Smartwatch mode
  • Water/Dust Rating: 10-ATM
  • GPS: Multi-GNSS Satellite System
  • Special Feature: Store and Play Up to 2000 Songs on the Watch


  • Wrist-based Pulse Oximeter and Heart Rate Monitor
  • Long-Lasting Battery Life
  • Dedicated Modes for Hiking, Climbing, Biking, etc.
  • Real-time Stamina Monitoring
  • Access More Than 42,000 Golf Course Maps Around the World


  • Comes at an Expensive Price Tag
  • No Voice Control Support
  • Limited Smartwatch Features Compared to Apple Watch/Galaxy Watch

9. Realme TechLife Watch R100

The Realme TechLife Watch R100 is one of the latest smartwatches with continuous SpO2 blood oxygen monitoring. You can turn on the app’s automatic blood oxygen measurement feature, which will measure your SpO2 levels frequently when you are in a static state, sleeping, or at a high altitude.

You can also enable a low blood oxygen level reminder and set the reminder value manually, after which you will receive reminders on the watch when your blood oxygen level goes below the set value. The Watch R100 has other useful features like Bluetooth calling, built-in Alexa, IP68 water resistance, over 100 sports modes, a circular metallic dial, and up to 7 days of battery life.

Realme Watch Blood Oxygen History

Key Features:

  • Display: 1.32″ TFT LCD
  • Battery Life: Up to 7 Days
  • Water/Dust Rating: IP68
  • Workout Modes: 100+
  • Special Features: Built-in Amazon Alexa


  • Good Built Quality
  • Built-in Speaker and Microphone
  • Supports Bluetooth Calling
  • Built-in Amazon Alexa Voice Assistant


  • Sluggish UI
  • The app could have been better

Wrapping Up

These are the top nine smartwatches with continuous SpO2 blood oxygen monitors that you should consider buying. We have shown you the best options, ranging from budget to expensive, in the market. Which smartwatch or smart band did you like the most? Tell us in the comments below, and stay tuned with WearablesToUse for more helpful listicles!


Himanshu Kansal

Himanshu roams around the Internet to find the latest happenings in Tech Industry to stay updated about everything Tech. Apart from being a Tech Writer, he also makes content on YouTube and is passionate about Smartphones and Gadgets.