Photo 1 of HitTopss Ultra Thin Smart Ring, Fitness Tracking Smart Ring with Calories/Heart Rate/Blood Oxygen/Sleep Monitoring, 5ATM Waterproof, No APP Subscription, Compatible with iOS/Android

Double tap image to zoom

Photo 1 of HitTopss Ultra Thin Smart Ring, Fitness Tracking Smart Ring with Calories/Heart Rate/Blood Oxygen/Sleep Monitoring, 5ATM Waterproof, No APP Subscription, Compatible with iOS/AndroidPhoto 2 of HitTopss Ultra Thin Smart Ring, Fitness Tracking Smart Ring with Calories/Heart Rate/Blood Oxygen/Sleep Monitoring, 5ATM Waterproof, No APP Subscription, Compatible with iOS/Android