US
Wellue

Wellue O2Ring Bluetooth Oxygen Monitor

  • SpO2, pulse rate and motion, recorded continuously
  • Up to 16 hours of monitoring per session
  • 12 to 16 hours per full charge, rechargeable
  • Vibration alert at preset low O2 or pulse thresholds
  • Four 10-hour sessions stored onboard
  • Bluetooth 4.0 BLE, iOS 9.0 or Android 5.0 and above
  • PDF and CSV reports via free app and PC software
  • Not a medical device: sports and aviation use only

Updated 20 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A comfortable way to log blood oxygen and pulse over long sessions, with vibration alerts and detailed reports. It is sold for sports and aviation use, not as a medical device.

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ASIN: B08VW3VQKWModel: O2RingCategory: Pulse Oximeters

Overview

A soft silicone sensor ring on the finger records blood oxygen, pulse rate and body motion continuously, switching on by itself when worn. Data uploads over Bluetooth to a free app and PC software, and the ring vibrates when readings cross thresholds you set.

Continuous, hands-free recording with vibration alerts and exportable reports is the reason to choose this ring. It is labeled for sports and aviation only, so it does not replace a medical-grade device, and the fit range suits adult fingers.

Who it's for

Pilots and athletes tracking oxygen levels over long stretches get a wearable log plus shareable reports. Children with small fingers and anyone needing clinical monitoring fall outside its intended use.

Pros and cons

Pros
  • Continuous oxygen, pulse and motion tracking
  • Vibration alert at preset thresholds
  • Starts recording automatically when worn
  • Free app and PC reports
Cons
  • Not intended for medical use
  • Fits adult-sized fingers only
  • Charging time not listed

Performance notes

Readings rely on steady contact between the silicone sensor and the finger. Alerts fire only when levels pass the thresholds you preset, so those settings govern how often it buzzes. Data waits in onboard memory until the app connects, then uploads automatically.

Specifications

BrandWellue
ModelO2Ring
Dimensions & fit
Display Size1 inch
Item Weight0.03 pounds
Item Dimensions L X W X H1.5 × 1.2 × 1.5 inches
SizeMedium
Power & efficiency
Battery Average Life16 hours
Battery DescriptionLithium-Ion
Construction & materials
ColorBlack
Material TypeSilicone
Compatibility & installation
Compatible DevicesSmartphones
Included components
Unit Count1
Warranty & support
Software Update Supported To Dateunknown
Other details
Sensor TypeOptical
Number Of Items1

Frequently asked questions

Will the Wellue O2Ring fit my finger?

It suits a finger perimeter of 2.17 to 3.15 inch, roughly the size of an adult finger.

Does the Wellue O2Ring work with my phone?

The app needs iOS 9.0 or above on iPhone 4s or iPad 3 and newer, or Android 5.0 or above, with Bluetooth 4.0 BLE.

What if my phone is not nearby while wearing the O2Ring?

The ring stores data in built-in memory and uploads it automatically once it connects to the app over Bluetooth.

Can I share Wellue O2Ring reports?

Yes. The free app and PC software allow unlimited sharing of PDF and CSV reports.