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This link is only for overseas/cross-border use Attention NoticeThe factory only works with partner clients at factory prices. If purchased for personal use without shipping, 1: Support foreign e-commerce and live streaming platform collaborations. (Cross-border shipping can support label placement for delivery) 2: Support bulk customization, gift channels, and customized styles can be designed and developed according to your requirements. 3: E-commerce sales price control. 4: Customization (Contact Customer Service Directly) (Brand Authorization Available) (5ATTM grade waterproof)Can be worn for diving or snorkeling, supports depths above 50m meters, waterproof) (Ring has no touch or buttons; App initiates movement and function tests.) Multiple Sports Modes: No, running, cycling, hiking, swimming to obtain phone GPS sports data) (APP initiates heart rate test/all-day dynamics)⼼Heart Rate Trend and Data Analysis / Heart Rate Data Analysis / Recent 7 Heart Rate Measurements Trend / Heart Rate Historical Data Sleep Data Statistics, Sleep Ratio, Sleep Score, Sleep Analysis, Average Sleep Heart Rate etc. APP Initiated Blood Oxygen Test / Recent 7 Blood Oxygen Data / Recent 7 Blood Oxygen Saturation Measurement Trend / Blood Oxygen Historical Data Innovative Design, New Height of Selfie, One Finger Trigger Beautiful Smart Ring, Remote Control Photography, Let You Easily Become Your Own Professional PhotographerLet you easily capture beautiful moments anytime, anywhere. Connect to Apple Health and Fitness Language: Synchronized with the phone's country language r02 smart ring Please contact customer service for box dimensions This ring is an international size #7 (Inner Diameter 17.4mm) #8 (Inner Diameter 18.2mm) #9 (Inner Diameter 19.0mm) #10 (Inner Diameter 19.9mm) #11 (Inner Diameter 20.7mm) #12 (inner diameter 21.5mm) (you can choose the size based on the inner circumference) Ordering Instructions: (Regular shipment includes a magnetic charging cable set; if you want a box charger, please purchase the charging case separately (the box charger package does not include the cable; you can contact customer service for this) Customizable logo available