Features: 1. Large color touch screen: Use a larger 1.3-inch AMOLED display to get better clarity and personality. The high-sensitivity touch screen can perform different operations, such as smart call reminder, Bluetooth camera, step recording, calories, sleep detection, Bluetooth and heart rate recording. 2. USB charging: The charging interface of this bracelet is a USB interface. After removing the strap, it can be directly connected to a device with a USB interface or a charging head for charging, which is convenient to carry. 3. Fashion design: The smart mosquito repellent bracelet adopts a diamond texture design, which is sturdy and stylish. The strap is soft and smooth. The single-row design allows you to train freely without falling. 4. Application information display: After this smart mosquito repellent bracelet is connected to the mobile phone APP, it can monitor heart rate changes 24 hours a day, and scientifically record training steps and calories. 5. Wide range of applic