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The Best Wellue O2Ring of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Wellue O2Ring of 2023. Check our ranking below.

2,716 Reviews Scanned

Rank No. #1

Wellue O2Ring Oxygen Monitor with Vibration Reminder - Bluetooth O2 Pulse Oximeter Rechargeable, Continuous Recording of SpO2 & PR, Blood Oxygen Saturation Tracker with Free APP & PC Reports

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 vibrate 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.

Rank No. #2

Wellue Wearable Pulse Oximeter - Rechargeable O2ring Bluetooth Oxygen Saturation Monitor with Reminder, Continuous Tracking of Oxygen Level and Pulse Rate with Free APP & PC Software

RELIABLE AND ACCURATE: Continuously track Oxygen Level, Pulse rate and Perfusion index in every second.
FREE APP: Data can be transferred to smart phone for more detailed information. It supports to share JPG or CSV reports with others for free. APP compatible with iOS 9.0 or above, iPhone 4s/ iPad 3 or above, Android 5.0 or above, with Bluetooth 4.0 BLE.
EASY TO MANAGE: O2ring stores four sets of 10-hour data. It supports synchronizing the data to the software for management via Bluetooth.
INTELLIGTNT AND RECHARGABLE: Long battery life. It can be used for 16 hours after fully charged.
SMART REMINDER: If your oxygen level is lower, or heart rate is lower / higher than the threshold you preset, the O2Ring will vibrate to notify you and mark it in the report.

SaleRank No. #3

Wellue O2Ring Wearable Pulse Oximter, SPO2 Blood Oxygen Saturation Monitor - Bluetooth O2 Meter Ring Sensor with Vibration Reminder, Free APP & PC Report, Rechargeable

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 tell you and 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.

Rank No. #4

Wellue Fingertip Pulse Oximeter, Blood Oxygen Staturation Monitor, O2 Meter & Heart Rate Monitor with Lanyard & Batteries

【ACCURATE AND RELIABLE】Accurately measures your SpO2, pulse rate, pulse strength and pulse waveform and conveniently displays them on a large OLED screen.
【UNUSUAL WARNING】The value on screen will flash when your O2 level or PR value exceeds the preset limit.
【PORTABLE & EASY TO USE】Light-weight and compact, easy to handle and to carry with you for results at home or outdoors.
【SUITABLE FOR ALL AGES】This device allows for almost all size of fingers from children to adults due to the finger chamber design. The recommended finger thickness should be between 8-25.4mm.
【LOADED WITH ACCESSORIES】Package includes 2-AAA Batteries to power up the Pulse Oximeter. Come with 1-YEAR WARRANTY.

Rank No. #5

Wellue O2 Pulse Oximeter with Smart Reminder | Blood Oxygen Saturation Monitor for SpO2 and Heart Rate Tracking Continuously, Bluetooth Finger Ring with Free APP &PC Report

【Free APP&Software for Android, iOS&PC】The "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 Reminder】The oximeter vibrates and keeps making a "drip" sound if blood O2 saturation falls below your defined level. Vibration and sound intensity can be adjusted.
【All-day Monitoring】Checkme O2 Max records your O2 level (blood O2 saturation level), pulse rate, and motion with extremely accuracy.
【Comfort Patented Ring Sensor】Soft 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 Use】No AAA batteries required, without keeping batteries nearby, continuous using up to 3 days (72 hours) after one charge, with an one-year warranty.

Rank No. #6

Vibeat OxyRing Continuous Oxygen Monitor - Bluetooth Pulse Oximeter with Real-time Reminder & Free PC Report, Wearable Finger Oxygen Meter for 16hrs Oxygen Level & Heart Rate Recording

All Day Continuous Recording -- It can be used to do continuous tracking of blood oxygen level, heart rate and body motion for up to 12-16 hours after fully charged. The patented soft silicon ring sensor is light, convenient and portable for all day use. ( The perimeter of the OxyRing is 2.0"-3.2"/ 50-82mm.) HSA/FSA approved, use your HSA/FSA funds to purchase the OxyRing oxygen monitor.
Real-time Reminder -- If the blood oxygen saturation level is lower than the preset threshold and heart rate is lower or higher than the preset threshold, the device will vibrate, and the APP will beep to notify you. Easily adjust the alarm threshold and intensity on the APP.
Detailed APP Report & PC Report -- Free APP and PC Software provides graphic records for trends of oxygen level, heart rate and body motion. Unlimited downloading and sharing of PDF, CSV and Binary records, including O2 score, Max/Min/Avg O2 & PR. Integrate with Apple Health.
Easy to Use -- The OxyRing O2 meter runs automatically when you wear it, auto display off and easily check your blood oxygen readings again by raising your hand. The brightness of the screen can be adjusted through the APP.
Built-in Memory -- OxyRing stores four groups of 10-hour data on device. When the device is connected to the APP via Bluetooth, the data will be uploaded automatically.(unlimited store in APP)

SaleRank No. #7

Wellue Bluetooth Pulse Oximeter Fingertip, Blood Oxygen Saturation Monitor with Free APP, Batteries, Carry Bag & Lanyard

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.

Rank No. #8

Wellue Pulse Oximeter Fingertip| Bluetooth Blood Oxygen Saturation (SpO2) & Heart Rate Monitor| O2 Meter 20F, Batteries and Lanyard Included

【High Accuracy】Features the research-grade photoplethysmograph technology that uses infrared light to sense body movement and gather the necessary information to determine high-precision reliable signs.
【Instant to Start】Press the button to start. Measures O2 reading, Pulse Rate in 8 seconds and display it on the OLED screen.
【Works with APP】Automatically receive data from the oxygen monitor and store the received data (only recorded when the app is running) to view real-time data, graphical reports, blood oxygen saturation, and heart rate trends, both iOS and Android supported.
【Reading Reminder】If your blood oxygen is lower or your pulse rate is lower/higher than the preset threshold, the corresponding reading will flash to remind you.
【What You Get】1* finger pulse oximeter, 1* lanyard, 2*AAA batteries.

Rank No. #9

Wellue Wearable Monitor KidsO2 Ring, Kids Portable Pulse oximeter, Bluetooth Children's All-day Monitor with Reminder, Free APP& PC Report for PR & SpO2 Level(Upgraded Version)

Wireless Real-Time Monitor: PI histogram on the dashboard helps you adjust the position to get the strongest signal. KidsO2 and APP will beep when O2 level drops lower than the threshold you pre-set, remind you the unusual condition of your kids timely.
Continuous Tracking: Run automatically when wear it, accurately and continuously track and record kid's oxygen level, heart rate and body movement, intelligible analysis results and diagrams help you to know the body status of your kid.
Free APP And PC Software: Sync the data to your smart phone or computer, know the overall trends via graph, observe detailed readings with magnifying glass. One-click sharing from APP, exportable PDF/CSV from PC, sharing your report conveniently.
Specially Designed for Kids: Different with traditional sensor, patented soft finger ring sensor is more friendly and comfortable to the kid's finger. Oval shape with adorable star theme make the kids fall in love with it.
You Will Get: 12 month Worry-Free Warranty, Lifetime technical support, Top grade customer service of fast response within 12h. （The Size is 38X30X27 mm.）

Rank No. #10

LPOW Bluetooth Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor (SpO2) with Pulse Rate, Perfusion Index with Alarm, OLED Display, APP for Smart Tracking, Batteries and Lanyard Included

ACCURATE AND RELIABLE: Accurately measure your blood oxygen saturation SpO2, pulse rate, perfusion index, pulse waveform and easily display them on the OLED screen.
ABNORMAL READING ALARM: If your blood oxygen is lower or your pulse rate is lower/higher than the threshold, this finger pulse oximeter will remind you with a buzzer, and the corresponding reading will flash.
ANDROID and IOS FREE APPS: Automatically receive data from the oxygen monitor and store the received data (only recorded when the app is running) to view real-time data, graphical reports, blood oxygen saturation, and heart rate trends.
EASY TO USE: Read in an easy-to-use way. Just clip it to your finger and press a button to open it. This pulse oximeter can measure your SpO2, pulse rate, and pulse index in 8 seconds.
EQUIPPED WITH ACCESSORIES: The package includes a pulse oximeter fingertip, a user manual, 2 AAA batteries and a hanging lanyard for convenience. Note: this device is only used for sports and aviation purposes.

Rank No. #11

Wellue SleepU Wrist Pulse Oximeter - Wearable Oxygen Monitor with Finger Sensor with Smart Reminder for Low O2| SpO2 & Pulse Rate Recording Continuously, Free Shareable APP&PC Report

Designed for oximetry monitoring：Continuously track your oxygen level, pulse rate and body movement all-day, collecting data every 4 seconds. Accurate and reliable.
Smart Reminder: Support you to adjust the threshold and vibration intensity on the mobile phone Vihealth APP. If your oxygen reading exceeds the set threshold, SleepU vibrates intelligently to remind you.
Powerful APP&PC reports: Transfer data to smart phone APP and PC software for more detailed information.It supports manage, review, analyze historical data and sharing JPG or CSV reports with others.
Free your fingers: The patented comfortable soft silicon RING sensor is light and convenient, and will not easily slip off your fingers during sleep. The probe can be replaced.
Built-in memory: SleepU can store 4 groups of data, each group can up to 10 hours. The data is automatically synchronized to the APP via Bluetooth, and the APP can store unlimited groups of data.

Rank No. #12

Wellue Oxylink Wireless Wearable Blood Oxygen Monitor, Bluetooth Pulse Meter with Audio Reminder in Free App - Wearable O2 Monitor Rechargeable

FREE APP FOR iOS AND ANDROID: Unlimited storage in App Vihealth, viewing real-time blood O2 & heart rate in App Dashboard. Connect the device with APP via Bluetooth.
AUDIO REMINDER IN APP DASHBOARD: The audio reminder in App Dashboard will be triggered when O2 level falls below the pre-set threshold. The reminder works only when your phone stayed in Dashboard and not locked.
AUDIO REMINDER IN DEVICE: The audio reminder in device will be triggered when the O2 level falls below the pre-set threshold, prevent from a low-O2 status. You can adjust the volume and O2 threshold in APP.
COMFORTABLE SOFT RING SENSOR: The lightest, smallest ring sensor for all-day continuous tracking, durable and adapt to most fingers.
ALL-DAY TRACKING: Continuously tracking and recording oxygen level, heart rate and motion every minute, continuously using up to 16 hours.

Rank No. #13

Wellue WearO2 Wearable Oxygen Monitor Bluetooth Pulse Meter with Vibration, Free APP, Continuously Track O2 Level & Heart Rate

Wearable Real-Time Monitor: Soft ring sensor makes it comfortable and never goes off from your finger for home daily use. WearO2 don't provide readings during sport.
Body Care: Continuously tracking and recording O2 level, heart rate and motion, continuous using up to 16 hours. Built-in memory for easy on the go.
Free APP for Android and iOS: The ViHealth APP shows the graphic reports and trends of O2, heart rate and motion. Data analysis can help you to avoid uncomfortable conditions and improve your lifestyle.
Smart Reminder for Low O2 Level: WearO2 can detect changes of O2 level, active a reminder to stir your finger when o2 level drops lower than the threshold, prevent a low-O2 status.
What You Get: Wellue WearO2, USB cable, User guide, 1 year worry-free warranty and our friendly customer service.

Rank No. #14

Wellue Wrist Pulse Oximeter for Oxygen Level and Pulse Rate, Continuous Blood Oxygen Monitor With Vihealth APP, Bluetooth Finger Meter O2 Sensor

ADVANCED & RELIABLE-- Continuously track your O2 level, heart rate and body motion in every 4 seconds.
FREE APP and PC REPORT in CSV/PDF-- Data can be transferred to smart phone and PC software for more detailed information. Easily to manage all historical data and supports sharing JPG or CSV reports with others.
SMART VIBRATION REMINDER-- The smart vibration system tracks your SpO2. It allows to set the threshold and the intensity of the vibration reminder on the device or Vihealth APP according to your own needs. If an irregular 02 level is detected, it will vibrate
SOFT RRING SENSOR-- Equipped with a patented ring-type blood oxygen probe, it is light and compact. It won't make your fingers bulky ( compare with duckbill probes), and it's comfortable to wear all night long.
RECHARGEABLE and PORTABLE-- Super battery duration, work up to 16 hours on one charge. Light and small. Suitable for home use and travel.

Rank No. #15

Wellue Charging Cable About Oxylink, WearO2 and Oxyfit

Rank No. #16

LOOKEE Ring-Pro Wearable Oxygen Monitor with Vibration Reminder for Low O2 | Bluetooth & Continuous Pulse Oximeter | Rechargeable Blood Oxygen Saturation Tracker for SpO2 & PR, Free APP & PC Reports

ALL-DAY MONITORING: The LOOKEE Ring enables you to continuously track your blood oxygen level, pulse rate, and body motion throughout the day. With a battery life of up to 16 hours on a single charge, the LOOKEE Ring allows you to track your data around the clock without interruption.
SMART VIBRATION REMINDER: The LOOKEE Ring provides a smart vibration reminder that gently alerts you when your blood oxygen level falls below the preset threshold
DETAILED APP & PC REPORTS: Get detailed insights into your data with the free Mobile App and PC software. The app and software provide graphic O2 and PR reports and data trends, and you can easily share unlimited PDF and CSV reports with others. The app is compatible with iOS 9.0 or above, iPhone 4s/iPad 3 or above, and Android 5.0 or above, and can connect to the LOOKEE Ring via Bluetooth 4.0 BLE, giving you complete control over your data.
BUILT-IN MEMORY: Never lose track of your data with LOOKEE Ring's built-in memory that can store up to four sets of 10-hour data. And when you connect to the app via Bluetooth, all your data is automatically uploaded, so you don't have to worry about losing your progress.
INTUITIVE DESIGN: The LOOKEE Ring is user-friendly and intuitive, designed with a patented soft silicon sensor ring that is lightweight, comfortable, and easy to wear. Its sleek and modern design makes it a convenient and enjoyable device to wear while tracking your data.

Rank No. #17

Vibeat OxyRing Pulse Oximeter | Wearable Finger Oxygen Meter with Notification | Bluetooth Blood Oxygen Saturation Monitor with Free APP and Exportable Report | Continuous Tracking

HEART RATE MONITOR AND O2 - OxyRing blood oxygen saturation monitor built in high performance motion sensor, automatically monitors your oxygen level, heart rate and moniton in real time up to 12-16 hours, help you better grasp changes for your O2 level and record accurate O2 data.
DETAILED APP AND REPORTS - Free APP provides graphic recording for trends of oxygen level, heart rate and body motion every 4 seconds. Easily share the report (PDF/CSV/Binary form) with others by one click.
SMART NOTIFICATION - When your blood saturation oxygen level exceeds the preset threshold, the device will vibrate and the phone will beep to remind you. You can adjust the notification threshold (80% - 95%) and intensity (5 levels) on the APP, or to turn off the notification of device.
SUITABLE FOR MOST PEOPLE - The patented comfortable silicon sensor is light, convenient and portable. The perimeter of the OxyRing is 2.0"-3.2"/ 50-82mm.
BUILT IN MEMORY - The built-in memory can store 4 session data of 10 hours. When the device is connected to the APP via Bluetooth, the data will be uploaded automatically.

Rank No. #18

Wellue Children Pulse Oximeter Fingertip, Blood Oxygen Saturation Monitor for kid, Low Oxygen Level Reminder, Heart Rate & SpO2 Monitor with Batteries & Lanyard (Pink)

【Reliable and Accurate Pulse Oximeter】 -- Specially designed for children(age 2-12 years). Suitable for children with finger diameter of 0.3 "-0.44". The calculation of the device can accurately reflect the blood oxygen level and pulse rate.
【Easy to Operate】 -- Just put the finger in to measure, press the button to start, take out the finger to automatically shut down. Your kids can learn to use pulse oximeter fingertip easily. (Please do not measure on the same finger for more than five minutes.)
【Remind You When Neccessary】 -- Smart reminder will let you know when O2 level is lower than 88%, and the pulse rate is higher than 120bpm or lower than 40bpm. Don't worry about missing any unusual readings.
【OLED Display to Show Clear Results】 -- The product is lighter, low energy consumption, and high brightness. The low battery indicator is very friendly for monitoring the SpO2 of children. (Please do not use it under strong sunlight, otherwise there will be measurement errors.)
【What You Get】 -- A penguin-looking kids pulse oximeter that appeals to your child. A free lanyard that can be hung around your child's neck and 2 free AAA batteries. The after-sales team will serve you.

Rank No. #19

LOOKEE Ox-Minder Ring Continuous Pulse Oximeter | Bluetooth & Wearable Oxygen Monitor with Vibration Reminder for Low O2 | Rechargeable Blood Oxygen Saturation SpO2 Tracker - Free APP with Reports

ALL-DAY MONITORING: Never miss a beat with LOOKEE Ring's continuous track of blood oxygen level, pulse rate, and body motion monitoring capabilities. Its long-lasting battery can provide up to 16 hours of continuous use.
SMART READINGS REMINDER: With LOOKEE Ring's intelligent reminder system and its customizable threshold ensures that you always receive timely notifications if your oxygen level falls below the limit.
DETAILED APP REPORTS: LOOKEE Ring's free App provides detailed reports on your blood oxygen level, pulse rate, and body motion trends. You can also share unlimited PDF and CSV Reports. Its user-friendly interface makes it easy to track your progress and monitor your data.
BUILT-IN MEMORY: LOOKEE Ring's built-in memory can store up to four groups of 10-hour data, which is automatically uploaded to the App when connected via Bluetooth.
USER-FRIENDLY: Our patented silicone sensor ring is designed for maximum comfort and convenience, so you can wear it all day without even noticing it's there.

Rank No. #20

Wellue Smart Pulse Oximeter for Adults and Infant, Handheld Oxygen Monitor for SpO2&HR&body temperature, Rotatable Touchscreen, Free APP&PC Software (checkmepro)

Accurate and Easy to Use：It comes with SpO2 probe and temperature probe, you can easily monitor oxygen level, Pulse Rate (PR), Perfusion Index(PI) and body temperature. Reading comes in 10 seconds or less.
Wireless Real-Time Monitoring: Once the monitor is connected to the app via Bluetooth, you can use your phone as a wireless display in real time. It is convenient in this way to monitor the body status of you and your families.
Good for Baby : The infant SpO2 sensor is a welcome addition to the monitor, providing accurate and comfortable oxygen level measuring for toddlers. With the special design, you can easily wear it on your baby's foot for SpO2 measurement.
APP AND PC SOFTWARE: Data can be transferred to smart phone and PC software for more detailed information. It supports to share JPG or CSV reports with others for free.
Comprehensive APP: Easily monitor all your body data on the dashboard. You can also review and share your history record of your oxygen level, PR and body temperature. The free app is compatible with android and iOS (Please note that the PDF report is available ONLY on smartphone APP; PC APP is only used to view the data).

Last update on 2023-07-29 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best Wellue O2Ring?

Do you get stressed out thinking about shopping for a great Wellue O2Ring? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Wellue O2Ring, which is why we have assembled a comprehensive list of the greatest Wellue O2Ring available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Wellue O2Ring that you consider buying. Your questions might include the following:

Is it worth buying an Wellue O2Ring?
What benefits are there with buying an Wellue O2Ring?
What factors deserve consideration when shopping for an effective Wellue O2Ring?
Why is it crucial to invest in any Wellue O2Ring, much less the best one?
Which Wellue O2Ring are good in the current market?
Where can you find information like this about Wellue O2Ring?

We’re convinced that you likely have far more questions than just these regarding Wellue O2Ring, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Wellue O2Ring, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Wellue O2Ring. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Wellue O2Ring buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Wellue O2Ring currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of Wellue O2Ring has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an Wellue O2Ring?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your Wellue O2Ring.
Customer Ratings: Number ratings grade Wellue O2Ring objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Wellue O2Ring.
Product Quality: You don’t always get what you pay for with an Wellue O2Ring, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an Wellue O2Ring is should be an indication of how long it will work out for you.

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FAQ:

Q: How does the wellue o2ring smart ring oxygen monitor work?

A: The Wellue O2Ring Smart Ring Oxygen Monitor runs automatically when the user wears it. It accurately and continuously tracks and records the blood oxygen levels, heart rate and body movement. The technical specifications are mentioned below: It has a oxygen level range of 70%-99%.

Q: What does the O2 score on wellue mean?

A: FAQs-O2Ring – Wellue Health. What is O2 Score? O2 Score is a measure of oxygen shortage during whole sleep. It combines frequency, duration, and depth of oxygen drops. A higher score means oxygen is richer. If it’s yellow or red, please ask your doctor for advice.

Q: Can you wear the wellue o2ring on your thumb?

A: Although the Wellue O2Ring is large, I found it to be comfortable to wear on my thumb all night long. After a minute or two I forgot I was wearing it and it didn’t cut off the circulation or make my finger numb. The ring can also be worn on your pinkie or another finger.

Q: How long does the battery on the wellue o2ring last?

A: The rechargeable battery on the Wellue O2Ring lasts for up to 16 hours, so you don’t necessarily need to charge it every day – though that’s probably a good idea. The built-in memory works together with the app and you can collect information on the things which matter most to you.