【24/7 Professional Health Monitoring】Continuous HRV monitoring, 24-hour high-precision heart rate tracking with real-time abnormal heart rate alerts, and blood oxygen monitoring for comprehensive health insights. 【Multi-dimensional Sleep Analysis】Advanced sleep structure analysis with multi-dimensional data tracking provides scientific improvement recommendations for better sleep quality. 【100+ Sports Modes】Supports running, cycling, swimming, and over 100 sports modes with real-time data analysis for evidence-based fitness tracking. 【Ultra-lightweight Design】Slim and comfortable design with zero-burden wearing experience, perfect for daily commuting and sports activities. 【Extended Battery Life】One charge provides up to 15 days of usage time and over 25 days of standby time, minimizing charging frequency. 【IP68 Waterproof Rating】Professional waterproof protection against sweat, daily water exposure, and rain for worry-free use in any environment. Specifications: Chip: Taiwan Pixart PAR2860 Memory: 512KB Material: Nylon Loop Strap Bluetooth-compatible Version: BT 5.2 Battery Capacity: 130mAh Lithium Polymer Battery Standby Time: >25 days Working Time: >15 days Heart Rate Sensor: HX3918H Vibration: Support Charging Method: Magnetic Charging Waterproof Level: IP68 App Support Languages: English, Arabic, Bulgarian, Burmese, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Javanese, Korean, Latin, Latvian, Malay, Marathi, Norwegian Bokmål, Persian, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese Compatible System: Android 5.0 and above, iOS 10.0 and above Sleep Monitoring: Support Notification Push: Support Heart Rate Monitoring: Support Female Menstrual Cycle: Support Time Sync: Support Alarm: Support GPS: No Support Motor: Support Product Size: 43mm x 24.5mm x 12mm Package included 1 x Wristband 1 x English and Chinese User Manual 1 x Cable Specifications Brand N/A Certificate CE-RED,CE-RoHS,FCC-SDoC Color Black Packaging Type Colored Box Plug Type (For Supply) N/A User Manual (Language) English and Chinese Gross Weight 0.118kg Volume Weight 0.078kg Package Length 14.400cm Package Width 9.300cm Package Height 2.600cm