Kick Ring LL: A Multi-Sensor Ring Capturing Respiration, Electrocardiogram, Oxygen Saturation, and Skin Temperature¹

Area of Science:

• Biomedical Engineering
• Wearable Technology
• Health Monitoring

Background:

• The increasing adoption of wearable fitness trackers necessitates medical validation.
• Personalized health trends drive demand for accurate consumer health devices.

Purpose of the Study:

• To evaluate a novel smart-ring's capability in measuring key physiological metrics.
• To assess the clinical utility of wearable sensor technology for health tracking.

Main Methods:

• A smart-ring equipped with photoplethysmogram (PPG), electrocardiogram (ECG), and thermistor sensors was developed.
• The ring measured heart rate (HR), respiratory rate (RR), blood oxygen saturation (SpO2), and skin temperature.
• Experimental data was compared against established reference standards.

Main Results:

• Significant correlations were observed between the smart-ring's HR and RR measurements and their respective standards (p<0.05).
• Blood oxygen saturation (SpO2) measurements showed trial-dependent agreement with reference standards.
• Temperature readings were consistent with normal skin temperature ranges.

Conclusions:

• The smart-ring demonstrates reliable performance for heart rate and respiratory rate monitoring.
• Further validation is needed for blood oxygen saturation accuracy in diverse conditions.
• The device shows promise as a tool for personalized health and clinical monitoring.