Best Overnight Oximeter

Peter | 05-09-2025

With so many Best Overnight Oximeter brands on the market – from prominent names like Wellue,EMAY,Zacurate to smaller manufacturers – making the right choice can feel overwhelming. But we’re here to help simplify your search for the best product.

We extensively tested and evaluated dozens of top-rated Best Overnight Oximeter across various price points, spending over 100 hours comparing the contenders side-by-side. Based on our in-depth first-hand research, we compiled this list of stand-out Best Overnight Oximeter to consider. Our top recommendation is Wellue Best Overnight Oximeter for its uncompromising quality and performance.

Below you’ll discover more of our favorite Best Overnight Oximeter picks. And be sure to consult our buying guide for expert insights on selecting the ideal product for your individual needs and budget. With us guiding your decision, you can shop confidently knowing you’ve chosen an exceptional Best Overnight Oximeter you’ll truly love.

Editor's Choice
Zacurate 500BL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Batteries and Lanyard
Zacurate 500BL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Batteries and Lanyard
Premium Pick
SleepO2 Wrist Recording Pulse Oximeter by EMAY | Continuous Pulse Oximeter to Record Blood Oxygen
SleepO2 Wrist Recording Pulse Oximeter by EMAY | Continuous Pulse Oximeter to Record Blood Oxygen
Budget Pick
Wellue O2Ring Pulse Oximter, Bluetooth SPO2 Blood Oxygen Saturation Monitor - Wearable O2 Ring
Wellue O2Ring Pulse Oximter, Bluetooth SPO2 Blood Oxygen Saturation Monitor - Wearable O2 Ring

Top 10 Best Overnight Oximeter

We researched and compared the top products in the Best Overnight Oximeter category to provide you with these recommendations.

1. Wellue O2Ring Pulse Oximter, Bluetooth SPO2 Blood Oxygen Saturation Monitor - Wearable O2 Ring

  • COMFORTABLE SOFT RING SENSOR: The lightest, smallest ring sensor for continuous tracking, durable and adapt to most fingers.
  • DETAILED APP & PC REPORT: Free APP & PC software provides graphic report and trends of data, reviewing real-time data in APP dashboard. Unlimited sharing of PDF and CSV reports.
  • UNUSUAL DATA MARKING: If the SpO2 level is lower than the preset threshold and heart rate is lower or higher than the preset threshold, the device will mark it in the report.
  • UNLIMITED STORAGE IN APP: When the device is connected to the APP via Bluetooth, the data will be uploaded automatically. The built-in memory can store 4 groups of 10 hours of data on device.
  • RECHARGEABLE: The device runs automatically when you wear it, up to 16 hours for a full charge.
  • NOTE: It's not a medical device. This device is for Sports and Aviation use only and not intended for medical use.
  • It is suitable for customers with a finger perimeter of 2-3.2 inch, roughly the size of an adult's finger

2. EMAY Sleep Oxygen Monitor with App for iPhone & Android | Track Overnight & Continuous Blood Oxygen

  • With a 40 hours' built-in data memory, the EMAY Oxygen Monitor allows you to record O2 & heart rate continuously.
  • Record First, Sync Later! The oximeter records continuously without real-time connection to the app. Just put it on to record and take it off to sync later at your convenience.
  • Free iOS/Android app to review your historical data second by second, and export summary report to share with your physician.
  • Accurately determine your blood oxygen and pulse rate. Display it on a large and rotating digital LCD display. You do not need to twist your neck trying to see it.
  • This device is intended for sports & aviation use only, not for medical or diagnostic purpose.

3. Wellue Bluetooth Pulse Oximeter Fingertip PC-60FW, Blood Oxygen Saturation Monitor with Free APP,

  • ACCURATE AND RELIABLE: Our oximeter finger with pulse accurately measures SpO2 and Pulse Rate in 8 seconds. Automatically powers on/off.
  • FREE APP for ANDROID & iOS: Automatically receive data from the finger oxygen monitor in real-time, and store the received data. View the stored data at any time. Only synchronize and store data while opening the APP.
  • BUILD-IN MEMORY: Up to 12 groups data of Oxygen Level, Pulse Rate and Perfusion Index in record list screen. Quickly view your last 12 times historical data with one click.
  • SMART REMINDER: If O2 level or pulse rate exceeds the preset limit, the device will beep to remind you automatically and the readings will flash on the screen.
  • COME WITH ACCESSORIES: Includes 2 x AAA batteries placed and removed easily, a carry pouch to protect the oxygen reader, and a lanyard for convenient carry.
  • NOTE: It's not a medical device. This device is for Sports and Aviation use only and not intended for medical use.

4. SleepO2 Wrist Recording Pulse Oximeter by EMAY | Continuous Pulse Oximeter to Record Blood Oxygen

  • Most lightweighted wrist pulse oximeter in the market, it weighs only 20 gram that one can sleep with comfortably. Patented silicone soft probe to wear comfortably, never slip off your finger.
  • Record your blood oxygen saturation (SpO2) & heart rate every second continuously and accurately throughout the night.
  • Stand-alone wrist pulse oximeter with built-in recording feature. Just wear it to record overnight, and take it off to sync with app in the morning.
  • Intelligent app allows you to review data second by second, and generate a professional sleep report with valuable data including ODI4% and trend graphs.
  • Rechargeable lithium battery, 12 hours' battery life. The device is for sports/wellness reference use only, not for medical or diagnostic purpose.

5. Wellue O2 Pulse Oximeter with Smart Reminder | Blood Oxygen Saturation Monitor for SpO2 and Heart

  • Free APP&Software for Android, iOS&PCThe "Vihealth" App and "O2 Insight Pro" Software allow you to share all-day data and trend easily, or watch your real-time O2 level and heart rate on your phone, tablet or computer. Please download "Vihealth" from Apple Store or Google Play.
  • Smart Vibration & Audio ReminderThe adjustable vibration and audio reminder stirs you to wake gently if blood O2 saturation falls below your defined level.
  • All-day MonitoringCheckme O2 Max records your O2 level (blood O2 saturation level), pulse rate, and motion with extremely accuracy.
  • Comfort Patented Ring SensorSoft silicone ring sensor won't make your finger numb and never slips from your finger, which completely frees your finger.
  • Up To 72Hrs Long-lasting UseNo AAA batteries required, without keeping batteries nearby, continuous using up to 9 nights(72 hours) after one charge, with an one-year warranty.
  • Built-in Memory O2Max oxygen reader stores four groups of 10-hour data. When the device is connected to the APP via Bluetooth, the data will be uploaded automatically.
  • NOTE: It's not a medical device. This device is for Sports and Aviation use only and not intended for medical use.

6. Zacurate Pro Series 500DL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Silicone

Zacurate Pro Series 500DL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Silicone
7.9

Zacurate

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  • ACCURATE AND RELIABLE - Accurately determines your SpO2 (blood oxygen saturation levels), pulse rate and pulse strength in 10 seconds and displays it conveniently on a large digital LED display.
  • FULL SPO2 VALUE - The ONLY LED pulse oximeter that can read and display SpO2 up to 100%.
  • SPORTS/HEALTH ENTHUSIASTS - For sports enthusiasts like mountain climbers, skiers, bikers, and anyone needing to monitor their SpO2 and pulse rate. The pulse oximeter LED display faces the user for an easy read.
  • ACCOMODATES WIDE RANGE OF FINGER SIZES - Finger chamber with SMART Spring System. Works for ages 12 and above.
  • LOADED WITH ACCESSORIES - Includes 2 x AAA BATTERIES, allowing the pulse oximeter to be used right out of the box; a SILICONE COVER to protect from dirt and physical damage; and a LANYARD for convenience. Comes with a 12-month WARRANTY and USA based technical phone support.

7. Innovo FSA/HSA Eligible iP900BP-B Fingertip Pulse Oximeter, Blood Oxygen Monitor with Free App,

  • Accurate and Reliable - The Innovo iP900BP-B Finger Pulse Oximeter is a premium model with an improved LED and sensor, allowing SpO2 and pulse rate measurement even at low blood perfusion.
  • Wireless Bluetooth Connection - Connect with your iPhone or Android via Bluetooth using the 'Beyond Oximeter' App. Record readings, visualize SpO2 Waveform, and check Perfusion Index.
  • Patented Multi-Directional Display - Choose from 6 layout options for easy viewing of blood oxygen and pulse. Switch display orientation at the push of a button for user or caregiver.
  • Plethysmograph and Perfusion Index - Ensure accurate SpO2 and Pulse Rate readings. Eliminate doubts about reliability or reading issues.
  • Sports Enthusiasts, Aviation or Home Use - Ideal for climbers, skiers, bikers, aviators, and on-the-go SpO2 and pulse rate tracking. Use pre- or post- exercise, remaining still during measurement. *Not designed for continuous overnight monitoring/recording.

8. Zacurate 500BL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Batteries and Lanyard

Zacurate 500BL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Batteries and Lanyard
9.8

Zacurate

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  • ACCURATE AND RELIABLE - Accurately determine your SpO2 (blood oxygen saturation levels), pulse rate and pulse strength in 10 seconds and display it conveniently on a large digital LED display.
  • SPORT/HEALTH ENTHUSIASTS - For sports enthusiasts like mountain climbers, skiers, bikers or anyone interested in measuring their SpO2 and pulse rate. SpO2 and Pulse Rate now faces instead of away from the user for easy read.
  • EASY TO USE - Taking a reading is easy, just clip it on to your finger and turn it on at the press of a button. In the product details section of this page, please refer to the application guide, product documentation, troubleshoot guide and quick start guide for important information to know before using this item.
  • ACCOMODATES WIDE RANGE OF FINGER SIZES - Finger chamber with SMART Spring System. Works for ages 12 and above.
  • LOADED WITH ACCESSORIES - Include 2X AAA BATTERIES that will allow you to use the pulse oximeter right out of the box and a LANYARD for convenience. Comes with 12 months WARRANTY and USA based technical phone support.

9. Wellue O2Ring Oxygen Monitor with Vibration Reminder - Bluetooth O2 Pulse Oximeter Rechargeable,

  • All-day Monitoring: It can be used continuously tracking of blood oxygen level, pulse rate and body motion for the whole day. (Up to 16 hours)
  • Smart Readings Reminder: If the O2 level is lower than the preset threshold and heart rate is lower or higher than the preset threshold, the device and the APP will virbate to notify you and mark it in the report.
  • Detailed APP & PC Reports: Free APP & PC software provides graphic O2, PR report and trends of data. Unlimited sharing of PDF and CSV reports. APP compatible with iOS 9.0 or above, iPhone 4s/ iPad 3 or above, Android 5.0 or above, with Bluetooth 4.0 BLE.
  • Built-in Memory: O2ring device stores four groups of 10-hour data.When the device is connected to the APP via Bluetooth, the data will be uploaded automatically.
  • User Friendly: The O2ring runs automatically when you wear it.The patented comfortable soft silicon sensor ring is light and convenient.
  • Rechareable: Long battery life. It can be used for up to 12-16 hours after fully charged.
  • With an one-year warranty, all kinds of suggestions and comments are welcome, we will try our best to give you a solution that satisfies you.
  • NOTE: It's not a medical device. This device is for Sports and Aviation use only and not intended for medical use.

10. EMAY SleepO2 Pro - Wrist Pulse Oximeter with SpO2 & Flow Tracking Overnight | Wrist Sleep Oxygen

  • Wear it on your wrist to record your blood oxygen saturation level, heart rate & flow continuously.
  • Specially designed soft silicone O2 sensor, stays on your finger comfortably and never slips during the whole night.
  • Soft-touch tube to monitor flow, designed to minimize discomfort. The gentle nature allows for a longer term of use per tube without experiencing discomfort.
  • Our powerful and free PC software allows you to download, review and analyze your overnight data and events. Export the report (AHI & ODI) as PDF to share with your physician easily. (For Windows PC only)
  • No AAA batteries, rechargeable device with huge data storage for up to 8G. Accessaries includes 1 device , 1 oxygen sensor, 2 nasal tubes, 1 usb cable, 1 power adapter, 1 user manual.

Peter

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