Cosign
Health tracker

Wellue O2Ring

by Wellue

Last checked: Oct 21, 2026

What it does

A soft ring that tracks blood oxygen and heart rate through the night.

How it can be used at home

An adult who uses oxygen at night wears the ring to bed and brings the overnight report to their lung doctor.

Notes and limits

Regular price $152.90. Not a replacement for a doctor's sleep study. Oxygen sensors can read less accurately on darker skin, an issue the FDA has flagged, so treat readings as a guide and share them with a clinician.

Needs it covers

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