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R1-S in Stock Black, Rose Gold, Silver, Size 7-Size 13 Health, Steps Distance Calorie Counting Heart Rate Blood Oxygen Sleep Monitoring Smart Ring, Find Details and Price about Smart Rings Health Rings from R1-S in Stock Black, Rose Gold, Silver, Size 7-Size 13 Health, Steps Distance Calorie Counting Heart Rate Blood Oxygen Sleep Monitoring Smart Ring - Shenzhen Jingyun Iot Technology Co.,Ltd