Photo 1 of **USED***Fitness Ring, Waterproof Activity with Heart Rate, Pedometer, Sleep Tracking, Oxygen Monitor & Step Calorie Counter, Smart Ring Health for Women Men (Black No. 20)

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Photo 1 of **USED***Fitness Ring, Waterproof Activity with Heart Rate, Pedometer, Sleep Tracking, Oxygen Monitor & Step Calorie Counter, Smart Ring Health for Women Men (Black No. 20)Photo 2 of **USED***Fitness Ring, Waterproof Activity with Heart Rate, Pedometer, Sleep Tracking, Oxygen Monitor & Step Calorie Counter, Smart Ring Health for Women Men (Black No. 20)Photo 3 of **USED***Fitness Ring, Waterproof Activity with Heart Rate, Pedometer, Sleep Tracking, Oxygen Monitor & Step Calorie Counter, Smart Ring Health for Women Men (Black No. 20)