SR2 Smart Ring IP67 Waterproof Health Monitoring Finger Ring with Charging Case - SilverandGold Edge or No.7 ¡¾Lightweight and Comfortable Design¡¿The smart ring offers a comfortable and lightweight wearing experience,making it a superior choice compared to traditional smart wearables ¡¾Comprehensive Health Monitoring¡¿Tracks multiple health parameters,including exercise,heart rate,sleep quality,and stress levels,providing detailed insights and professional analysis to help you stay on top of your health ¡¾Sleep Quality Analysis¡¿Monitors sleep patterns and provides in-depth analysis of deep sleep stages,enabling you to evaluate and improve your sleep habits for better overall well-being ¡¾24 or 7 Heart Rate Monitoring¡¿Equipped with high-precision sensors,the smart ring continuously tracks heart activity,offering accurate and real-time data to monitor your cardiovascular health ¡¾Advanced Fitness Tracking¡¿Supports various sports modes,including GPS and indoor or outdoor activities. Tracks steps,distance,calories,heart rate,and pace,while providing detailed exercise data and map tracking through the app for improved fitness goals Specifications: Waterproof: IP67 Material: Shell: titanium steel Weight: About 2.9g Chipset: Germany Dialog DA14531 Memory (ROMandRAM): 128kb ROM and 96kb RAM Expand memory: 8M G-Sensor: SC7A20C Bluetooth Version: 5.1 MobileAPP-GPS: Support Heartrate sensor: HX3602 Battery Type: Polymer Battery Operating temperature range: 0-50¡æ Battery Capacity: Ring: about 17.5mAh,Charging Case: about 200mAh Charging time: 1 Hour Theory Standby time: 10-15 days Normal using time: 7-8 days Charging: magnetic charging Compatible system: Supports Android 5.0 and above versions For Apple iOS 10.0 and above versions APP: JYOUPRO Size: (Thickness: 2.8mm) 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 Package included: 1 x Smart Ring 1 x Charging Case 1 x Charging Cable 1 x English User Manual