Could a ring on your finger detect sleep apnea?
NCT ID NCT04121923
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested a wearable ring device (Belun Ring) to see if it can accurately screen for obstructive sleep apnea. 70 adults wore the ring during a standard overnight sleep test. The ring measures oxygen levels, pulse, and movement to estimate breathing disruptions. Researchers compared the ring's results to the standard sleep lab measurements to check its accuracy.
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 Pulse Oximeter (wearable device)
- What this could lead to
- If successful, this device could offer a simpler, more accessible way to screen for sleep apnea at home or in clinics.
- What could go wrong
- This is a small, completed validation study (70 participants). The device may not be as accurate as standard sleep lab tests, and results may not apply to people with certain lung or sleep disorders.
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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Mountain Sleep Diagnostics
Denver, Colorado, 80231, United States
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