RingConn Gen 2 Air Smart Ring - Size 9 (Galaxy Silver)

RingConn Gen 2 Air (Galaxy Silver, SIZE 9) To ensure the perfect fit, we strongly recommend ordering the 'Sizing Kit' first to determine your correct ring size before making a purchase, as we cannot accept returns once the package has been opened. Alternatively, you can add a Sizing Kit to your ring purchase for just $5. We'll send the kit first, then wait for your size confirmation before shipping your perfectly fitted ring. The RingConn Gen 2 Air is an ultra-light smart ring, weighing just 2.5g, designed for seamless 24/7 health tracking. With AI-powered insights, it monitors heart rate, sleep, and SpO2, offering up to 10 days of battery life. Sleek, subscription-free, and packed with advanced features, it’s your everyday wellness companion. Features: Ultra-Light Design: Weighs only 2.5g for all-day comfort. Health Tracking: Monitors heart rate, sleep patterns, and SpO2 levels. AI-Powered Insights: Delivers personalized wellness data and trends. Long Battery Life: Up to 10 days on a single charge. Subscription-Free: No recurring fees for full functionality. Sleek & Durable: Stylish design built for everyday wear. 24/7 Monitoring: Continuous tracking for comprehensive health insights. Specificiation Power Supply Battery type: 3.7 V Lithium Battery for charge case, Rechargeable 3.8 V Lithium Battery for smart ring, Rechargeable Charge input: Charge case: DC 5V ±10% ≤500mA Smart Ring: DC 5V ±10% ≤16mA SpO2 parameter SpO2 range: 70% to 100% SpO2 Accuracy (Arms): 90%-100%: ±2% 80%-89%: ±2% 70%-79%: ±3% 0%-69%: not defined PR range: 30bpm to 240 bpm PR accuracy: ±2 bpm or ±2%, whichever is greater Wave length: 640nm-940nm Red light: 640nm ±20nm Infrared light: 940nm ±20nm Weight: 3g-5g Dimension: As model list named Operate environment: 5 °C – 40 °C Transportation and Storage Condition: Temperature: -20 °C to 60°C Humidity: 10% to 95% RH Atmospheric: 700hPa to 1060hPa Mobile APP Wireless: Bluetooth 5.0 BLE IOS: IOS 14.0 or above Android: Android 8.0 or above, with Blu