What is the Belun® Ring?
How does the Belun® Ring help?
A medical-grade, wearable device allows users to manage their sleep health at home with sleep-lab quality.
The accuracy of the sleep apnea report is as high as 90%.
Users need only to wear the ring on a finger while asleep.
Use the ring at home rather than spending nights in a sleep clinic.

The data collected is uploaded to Belun’s cloud-based, proprietary, artificial intelligence system, where it allows physicians and consumers to non-invasively measure various health data.
Light (only 10 grams), radiation-free, and ergonomically designed, the ring is comfortable and unobtrusive enough to be worn continuously during sleep.
The ring is available in six different sizes.
What is Sleep Apnea?
People suffering from sleep apnea will stop breathing during sleep. It may occur hundreds of times every night, each time lasting from 10 seconds to several minutes. The patients suffer from hypoxia and often wake up in their sleep.(1)
Sleep apnea is associated several chronic diseases:
Test Your Sleep Health
These are the symptoms of sleep apnea.
For a quick check, please click here.

15 – 25% of people over the age of 40 have sleep apnea.
Unfortunately, 80% of them are undiagnosed.
Source: click here
The Belun® Ring measures
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Oxygen Saturation (SpO2)
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Pulse Rate (PR)
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Apnea Hypopnea Index (bAHI)
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Sleep stages
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Autonomic Nervous System Response (ANS)
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Motion
We empower you to discover your sleep mysteries through our Belun Sleep Platform.
How to use?
Put the ring on before sleep.
A sleep report will be generated automatically in the morning, displaying a sleep apnea risk assessment with apnea hypopnea index (bAHI), autonomous nervous response, and sleep stages.
The Belun Ring helps you discover the quality of your sleep — at home, comfortably, by simply putting on your ring before sleep. You will uncover the mysteries of:
- Risk of sleep apnea
- Sleep quality
The Belun Ring equips its users with information that empowers them to change their daily habits — such as activities, exercise, alcohol intake, and medication — to improve their sleep health.

Certifications and Awards

World’s first FDA 510(k) cleared wearable ring for SpO2 measurement

ISO 13485 medical devices quality management system