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The Wellue O2Ring: Oximeter & Low Oxygen Alert Ring


For people who suffer with snoring, sleep apnoea, COPD, asthma and other conditions that affect breathing during normal waking hours or sleep, monitoring oxygen levels is essential, and can often be life-saving.

One of the problems faced by device manufacturers has been the wearability and durability of a monitoring device. The duck-billed monitor, for example (which is the small device that is worn/clipped over the finger usually when visiting a doctor), can usually be attached to a watch or other monitoring aid, and worn while the user is asleep. The primary issue is the monitor falling off the finger or becoming disconnected as the user naturally moves around in their sleep.

Benefits Of The Wellue O2Ring

The Wellue O2Ring is different. The FDA listed, patented device is a ring, designed to be worn with no discomfort when the user is asleep. The ring is designed to be comfortable, and continuously monitors blood oxygen saturation, heart rate and body movement during sleep, which is stored for later analysis. The most important feature, however, is a warning vibration alert when oxygen levels fall too low (sleep apnoea).

O2Ring - Oximeter Alert Ring

As oxygen (O2) levels decrease, heart rate becomes abnormal, or hypoxic events occur, the Wellue O2Ring vibrates; the subtle vibration is not enough to wake the user, but instead, alerts them into moving their sleeping position, and return blood oxygen saturation levels to normal.

Better, Restful Sleep

Besides the obvious safety features, the user will find that their sleep quality is much better, and they do not feel the usual tiredness that is associated with sleep apnoea and snoring. Natural movement during sleeping hours, thanks to the Wellue O2Ring, ensures their sleep is uninterrupted and a restful night is possible.

Abnormal Heart Rate Alert

Another intelligent alert system monitors for abnormal heart rate, and will produce a vibration if a low or high heart rate is detected. These symptoms can be a sign of underlying conditions, and the provided data can be extremely useful for medical professionals.

Helpful, Intelligent Data

O2 Ring Data Analysis

The user can check the data that is stored in the Wellue O2Ring with the accompanying iOS/Android smartphone app, using helpful high-resolution charts. These charts are medical grade and can be shared with doctors and consultants who are treating the user.

The user can share the data from the Wellue O2Ring PC or Mac software to enable them to share the data easily and quickly, exporting in CSV format for analysis.

Intelligent Smartphone App

Control various features in the smartphone app, such as the vibration levels, heart rate level alerts, SpO2 level alerts and usability features.

O2 Ring App
O2 Ring App
O2 Ring App Data


  • Overnight Tracking
  • Where At Work Or During The Day
  • Silent Vibration Alarm
  • Low Oxygen Alarm
  • Abnormal Heart Rate Alert
  • Bluetooth Data Transmission
  • Free iOS/Android App
  • Free Mac/PC Software App
  • Rechargeable
  • Built-In Memory

Technical Specifications

Wellue O2Ring

Find out more / purchase the Wellue O2Ring here.

MODEL: Wellue O2Ring
WEIGHT: 0.53 oz / 15g
DEVICE DIMENSIONS: 1.5” x 1.2” x 1.5”
RING PERIMETER: 2.0” – 3.2”/ 50-82mm
WIRELESS: Bluetooth 4.0 BLE
BATTERY LIFE: Rechargeable lithium-polymer, 3.7 Vdc; 12-16 hours for typical use
VIBRATION SOURCE: Low oxygen levels, high/low pulse rate
RECORDED PARAMETERS: Oxygen levels, pulse rate, motion
COMPATIBLE COMPUTER SYSTEM: Windows 7/8/10; macOS 10.15.3 or above
COMPATIBLE WITH: iOS 9.0 or above, iPhone 4s/iPad 3 or above; Android 5.0 or above, with Bluetooth 4.0 BLE
PULSE RATE RANGE: 30 to 250 bpm
BUILT-IN MEMORY: 4 sessions, up to 10 hours for each session
O2 Ring Reports


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Written By

Mark Byrne is the Co-Founder and Senior Editor at He is a lover of all things technology, a champion of the developer, and the brains behind the web development side of the website. He will be found wandering the pages of, writing what he believes is "solid content". Without Grammarly and spell check, he would be doomed, however. Mark is based in the North of England, and has recently changed all of his laptop's language options to USA English.

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