M.A&F's R09+ - Charging case Heart rate Blood oxygen

TCH R20 iRing - Health & Fitness Tracker Silver

TCH R20 iRing - Ring Size 7 Silver 220 mAh

TCH Smart Ring R10 - Blood Pressure Monitor Heart Rate Monitor SpO2 Monitor

TCH IRing R20 - Health & Fitness Tracker Sleep Monitoring Heart Rate

S SECRETTOP Fitness Tracker Ring - Heart Rate Blood Oxygen

AMOVAN R09 - Body Temperature Heart Rate Blood Oxygen

Anarow Smart Ring - Fitness Tracker Heart Rate SpO2

TCH iRing R20 - 13 220 mAh silver

NALACAL Smart Ring - Heart Rate Monitor Sleep Tracker

findtime Smart Ring - Heart rate monitor Blood oxygen saturation Sleep Monitoring