SY01 Smart Ring with Display, Touch Charging Dock, Page Turning Photo Taking - Heart Rate/Blood Oxygen/Sleep Monitoring

Item No. : R20 Size :8, Inner diameter: 18.2mm Size:9,Inner diameter: 19mm Size:10,Inner diameter: 19.9mm Size: 11,Inner diameter: 20.7mm Size: 12,Inner diameter: 21.5mm Size: 13,Inner diameter: 22.3mm Size: 14,Inner diameter: 23.0mm Model :R20 Applicable groups: Elderly people, teenagers, men, women Battery capacity :16 mah Product weight :3.2g Listing time :2025 Wearing method: Ring Applicable systems :IOS, Android Packaging list: ring, charging case, instruction manual, charger, packaging box Origin : Mainland China Important Notes: 1. Due to variations in lighting and screen calibration, the actual product color may appear slightly different from the images displayed. 2. As the measurements are taken manually, please allow for a tolerance of 0.1–0.3 cm. We sincerely appreciate your visit and hope you enjoy your shopping experience with us.