S9 2-in-1 TWS Bluetooth Earphones 1.53inch Round Screen Sports Smart Watch - Silver The watch can intelligently monitor and evaluate heart rate, blood pressure, and blood oxygen status anytime and anywhere, saying goodbye to traditional time-consuming, and laborious methods and keeping track of your body changes When you return home, the watch can be used to unlock the door. Just lift the watch on your wrist and approach it with NFC to quickly open the door Pressure-sensitive push type, rejection of sensitive touch for precise control is more convenient It supports a variety of sports modes such as mountain climbing, running, and cycling, and can monitor important data such as heart rate, distance, speed, and calories burned in real time, helping you explore a larger world and continuously expand your boundaries Ultra-low power consumption chip allows your watch to last longer and run more efficiently. Ultra-low power consumption chip, the best choice for smart life Specifications: Basic Parameter Bracelet Size?mm? 55*51.6*15.6mm Weight 71g Major function Bluetooth dual headset call, pedometer, message push, heart rate monitor, sleep monitor, blood pressure measurement, weather, 1.53" Hardware parameter Chipset Supplier AC Chipset AC7012A6 APP LookFit Compatible System Android5.1(include) above, IOS8.0(include) above FLASH memory Not Support Type TFT screen size 1.53 Inch Rouch Screen Resolution 360*360 Touch Type Full round touch screen Local MP3 playback Not Support Local calls Not Support Connection parameter BT BT5.0 WIFI Not Support NFC Support G-Sensor SC7A20 Heart Rate Metaphase 8007 (Detectable Black) Battery Type Polymer lithium ion Capacity 300mAh Charging Method 5V