Photo 1 of VBAOFOO Smart Ring for Men & Women, Health Tracker Fitness Ring with Heart Rate, Blood Oxygen, Sleep Tracker, Step Counter and IP68 Waterproof & Long Endurance, No APP Subscription (Silver,10#)

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Photo 1 of VBAOFOO Smart Ring for Men & Women, Health Tracker Fitness Ring with Heart Rate, Blood Oxygen, Sleep Tracker, Step Counter and IP68 Waterproof & Long Endurance, No APP Subscription (Silver,10#)Photo 2 of VBAOFOO Smart Ring for Men & Women, Health Tracker Fitness Ring with Heart Rate, Blood Oxygen, Sleep Tracker, Step Counter and IP68 Waterproof & Long Endurance, No APP Subscription (Silver,10#)