1.this smartwatch uses a 1.44-inch display, high-sensitivity touch screen can achieve various operations, call reminder, Bluetooth camera, steps, calories, sleep monitoring, heart rate and so on. 2.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. 3.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. 4.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. 5.The APP connection product distinguishes the exercise warm-up, the burning fat, the cardio-pulmonary enhancement and the like by drawing a curve of the data obtained by the monitoring..syi