【Screenless Minimal Design】Eliminates screen distractions for a focused workout and heart health monitoring experience with lightweight and comfortable wearing. 【ECG Heart Monitoring】Side electrode sensor enables on-demand ECG detection with AI-assisted analysis for early arrhythmia risk screening. 【24/7 Health Tracking】Continuously monitors heart rate, SpO2, body temperature, blood pressure and stress levels with real-time data sync to the HealthWear APP. 【IP68 Waterproof Rating】Full dustproof and deep waterproof protection supports swimming and daily water exposure with a breathable sweat-resistant woven strap. 【GPS Sports Tracking】Precise GPS positioning automatically records outdoor running and hiking routes, mileage, and duration with professional sports reports and multi-sport modes. Specifications: Product Model: TK35 Pro Product Dimensions: 42mm x 27mm x 8mm Main Control Chip: JL7073A8 Gravity Sensor: SC7A20H Body Temperature Sensor: NTC Optical Chip: GH3228T+GH3220S Heart Rate/SpO2 Chip: GH3228T+GH3220S Bluetooth: Bluetooth-compatible LE 5.3 LCD: Screenless Control Method: Mobile APP Control Motor: Supported Charging Method: Magnetic Charging Waterproof Rating: IP68 Battery Capacity: 180mAh High-Density Polymer Lithium Battery Battery Life: 7-10 Days Daily Usage, Over 30 Days Standby Body Material: Metal Alloy + PC + ABS Plastic + Heart Rate Lens + Woven Strap Strap Circumference: 260mm Multi-Sport Modes: Step Counter, Calorie Burn, Mileage, Trend Charts APP Name: HealthWear OTA Upgrade: Supported APP Languages: Simplified Chinese, Traditional Chinese, English, Japanese, German, Russian, Italian, French, Spanish, Portuguese, Thai, Czech, Greek, Polish, Vietnamese, Turkish, Romanian, Hungarian, Danish, Finnish, Arabic, Ukrainian, Hebrew, Persian, Irish, Slovak, Norwegian, Korean, Croatian, Swedish, Indonesian APP System: Android 8.0 and Above, iOS 13.0 and Above Package included 1 x Smart Wristband 1 x Charging Cable 1 x English User Manual Specifications Brand N/A Certificate CE-RED,CE-RoHS Color Gold Packaging Type Colored Box Plug Type (For Supply) N/A User Manual (Language) English Gross Weight 0.168kg Volume Weight 0.120kg Package Length 16.500cm Package Width 13.000cm Package Height 2.500cm