9-fold AI precise positioning Remote trajectory tracking a childs location is always known 1.89-inch color large screen Dazzl large screen with delicate colors Waterproof and sweatproof Daily handwashing does not require taking off a watchnbsp HD video Calling High definition video call ReaI time communication visible Soft silicone Strap Adjustable elastic band, suitable for various types of hand shapes, comfortable to wear Specifications Shell Material PCABS CPU Spreadtrum 8541 Quad-Core Available Memory 1GB16GB Touch Panel Tempered Glass Main Screen 1.89-inch landscape screen with 284240 pixels Vibration Supported Camera Dual cameras, 300,000 pixels Charging Magnetic suction charging Heart Rate Supported Blood Oxygen Supported algorithm reference Blood Pressure Supported algorithm reference Bluetooth Function and Version BT4.2 Alarm Supported Calculator Supported Real-Time Steps Supported Call Frequency Bands 2G B2B3B5B8, 3G B1, 4G FDD B1B3B7B20, TDD B38394041 Battery Capacity 720mAh Location Method GPSWIFILBS base station positioning Real-Time Positioning Supported Historical Trajectory Supported Voice Calls Supported Voice Messaging Supported Video Calls Supported SOS Emergency Call Supported Block Unknown Calls Supported Class Mode Supported Alipay Supported WeChat Supported QQ Supported TikTok Supported App Downloads Supported Android Version Android 9.0 Battery Life Standby for 4 days, normal usage for 2 days, continuous use for over 5 hours Language English, Russian, Traditional Chinese, Vietnamese, French, German, Spanish, Arabic, Thai, Romanian, Hindi, Simplified Chinese, Dutch, Filipino, Czech, Polish, Japanese, Turkish, Portuguese, Slovak, Ukrainian, Greek, Indonesian, Korean Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.