Smart Ring Health Tracker for Women Men, Sleep Tracker
Smart Ring Health Tracker for Women Men, Sleep Tracker with Heart Rate and Blood Oxygen, Fitness Ring for Activity Monitoring, 15 Days Battery, No Subscription, Titanium Alloy (Gold, #8) 【Size before purchase】: Please measure your finger circumference first according to the wearing instructions on the detail page, and the rope wire should go around your fingers, not too tight, not...
