Reliability Test

We thoroughly tested GloRing and compared it to other smart rings and devices.

The test was conducted by an adult male (43 years old), in bed from 1:00 AM to 8:00 AM.

GloRing Smart ring Competitors
Photodetector 6 2 – 4
LEDs 18 4
Weight 1.7 g 6 g
Waterproof
Heart Rate 24/7 24/7
Blood Oxygen
Sleep monitoring
Connectivity with Apple Health
Stress Monitoring
HRV during sleep
Reactivity >80 <50

Compare Popular Features

See how GloRing's product features compare to other smart ring options

Test GloRing Oura Ring Ultrahuman Ring Apple Watch
Sleep Start 1:02 1:03 1:16 1:03
Sleep End 7:51 7:43 7:42 7:54
Total Time Asleep 5H58M 5H50M 5H55M 5H53M
Total Sleep Duration 6H53M 6H37M 6H57M 6H55M
Sleep Latency 4M 3M 12M 5M
Sleep Efficiency 95% 92% 91% 89%
Sleep Score 74 72 77 79
Awake 26M 29M 25M 26M
REM 1H9M 1H31M 1H7M 1H12M
Light Sleep 3H38M 4H27M 3H14M 3H33M
Deep Sleep 2H10M 1H22M 1H34M 0H53M
Avg SpO2 97% 94% 95% 97%
Avg HRV 85ms 30ms 78ms 89ms
Avg HR 67 64 66 67
Temperature Change -0.1 / / -0.12

Blood Oxygen Test

Measurement Environment: To validate the accuracy of GloRing’s blood oxygen monitoring, tests were conducted in both normal oxygen conditions and in a controlled low-oxygen environment using a professional-grade hypoxic generator (commonly used for altitude training simulations).

Results: GloRing delivered highly precise SpO₂ readings, with results closely matching those of traditional medical-grade oximeters. This minimal variance demonstrates the ring’s exceptional accuracy and reliability.

Reliability Test

Consistency Criteria: To ensure measurement reliability, GloRing’s resting heart rate readings were compared against those from a standard professional heart rate clip. For consistency, results were considered accurate if they matched or were within ±5 BPM (beats per minute) of the reference device.

Results: GloRing demonstrated excellent performance in monitoring resting heart rate, delivering results nearly identical to professional-grade monitors. When worn correctly, the ring consistently captured precise readings—reinforcing its reliability as a trusted tool for daily health tracking and cardiovascular awareness.

Accuracy Test

Test Purpose: This test evaluated GloRing’s ability to track heart rate across varying levels of physical activity—from a resting state, through high-intensity exercise, and back to a recovery phase. The goal was to observe how accurately the ring reflects real-time cardiovascular changes during dynamic movement.

Results: When graphed alongside data from a professional-grade HRM chest belt, GloRing’s heart rate readings showed a strong correlation, closely following the same pattern throughout the exercise cycle. This consistent performance in high-motion scenarios confirms GloRing’s effectiveness as a reliable tool for fitness tracking, making it a valuable companion for both everyday workouts and peak performance monitoring.

GloRing is an elegant and precise accessory for measuring your well-being and health.
It is not a medical device and should not be used for medical purposes.