Could a ring replace the sleep lab? new study tests home apnea detection

NCT ID NCT04885062

Completed Diagnosis Sponsor: Belun Technology Company Limited Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether a ring-shaped device worn on the finger can accurately diagnose obstructive sleep apnea compared to the standard overnight sleep lab test. 136 adults suspected of having sleep apnea wore the Belun Ring while also undergoing standard lab testing. The goal was to see if the ring's measurements of breathing pauses during sleep matched the lab results closely enough to be used at home.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Belun Ring (ring-shaped pulse oximeter with analytic algorithm)
What this could lead to: If accurate, this ring could offer a simpler, more comfortable way to diagnose sleep apnea at home instead of in a sleep lab.
What could go wrong: This is a small, completed study comparing the ring to lab tests. The ring may not be as accurate in real-world home use or in people with other health conditions.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

obstructive sleep apnea syndrome sleep apnea syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

SLEEP ARCHITECTURE SLEEP DISORDERED BREATHING

Contacts and locations

Locations

University Hospitals Cleveland Medical Center

Cleveland, Ohio, 44106, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.