Carbon Fiber Smart Ring

Features Smart ring with carbon fiber texture finish in black, silver, and rose gold Tracks heart rate, blood oxygen (SpO2), and sleep patterns Monitors steps, distance, calories, and daily activity Supports basic fitness tracking and movement analysis Lightweight design (~4.7g) for comfortable all-day wear IP68 water and dust resistance for everyday use Seamless synchronization with mobile devices Compatible with Android and iOS systems Specifications Brand: KUNNWELL Model: SY02 Battery Capacity: 16mAh Weight: 4.7g Sizes: #7–#13 (17.8mm / 19.8mm / 21.5mm) Material: Stainless steel with carbon fiber pattern coating Compatibility: Android 5.1+, iOS 8.0+ Functions: Heart rate monitoring, blood oxygen, sleep tracking, step count, distance, calorie calculation Waterproof: IP68 (suitable for daily water exposure) Charging Method: Magnetic charging Package Includes: Smart ring, charging cable, manual, packaging Colors: Black carbon fiber, Silver carbon fiber, Rose gold carbon fiber