Photo 1 of POBOVi Smart Ring for Women Men- Sleep/Fitness/Stress/Heart Rate Tracker- Menstrual Records - 7 Days Battery Life - Wireless Charging - No APP Subscription - iOS & Android Compatible (Black, Size 11)

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Photo 1 of POBOVi Smart Ring for Women Men- Sleep/Fitness/Stress/Heart Rate Tracker- Menstrual Records - 7 Days Battery Life - Wireless Charging - No APP Subscription - iOS & Android Compatible (Black, Size 11)Photo 2 of POBOVi Smart Ring for Women Men- Sleep/Fitness/Stress/Heart Rate Tracker- Menstrual Records - 7 Days Battery Life - Wireless Charging - No APP Subscription - iOS & Android Compatible (Black, Size 11)Photo 3 of POBOVi Smart Ring for Women Men- Sleep/Fitness/Stress/Heart Rate Tracker- Menstrual Records - 7 Days Battery Life - Wireless Charging - No APP Subscription - iOS & Android Compatible (Black, Size 11)