Main Features Uses a larger 1.3-inch display, larger words, clearer, high-sensitivity touch, screen can achieve various operations, smart call reminder, Bluetooth camera, steps, calories, sleep monitoring Bluetooth music, heart rate quickly view various functions, and the touch operation of the large color screen is smoother, and smart life is started from then on. The bracelet is made of diamond-shaped lattice texture. The TPU material has a skin-friendly texture and is soft and smooth. The single-breasted design allows you to relax and not fall off. The five colors are optional and can be replaced at will. Plug-in design, plug-and-play and worry-free charging, the charging port is USB interface, remove the wrist strap, you can plug directly into the USB or charging head, easy and convenient. Built-in optical heart rate sensor, pay attention to your heart rate changes 24 hours a day, record your heart rate changes in each time on the excellent living APP, outline your heart rate,