Could a ring replace the sleep lab? new study tests home apnea detection
NCT ID NCT04885062
First seen Apr 18, 2026 · Last updated Jun 22, 2026 · Updated 13 times
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.
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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University Hospitals Cleveland Medical Center
Cleveland, Ohio, 44106, United States
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.
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.