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Last updated: Dec 8, 2021

Introduction to Belun® Ring

Belun® Ring helps you discover the quality of your sleep — at home, comfortably, by simply putting on your ring before bedtime. You will uncover the mysteries of Sleep apnea risk and Sleep quality.

Your Belun® Ring (BLR-100X) includes a Ring which you wear it during sleep to monitor your sleep, a Cradle for storing data and charging the Ring, spare Ring Arms of different sizes for fitting your index finger, a USB charging cable for charging the Cradle and a Finger Ruler for measuring your finger size.

Ring (with one Ring Arm installed)


Spare Ring Arm(s)

USB Charging Cable (Type-C to Type-A)

Finger Ruler