The first is wearing. Smart bracelets usually use materials with good texture, which are extremely elastic and more friendly to human skin. At the same time, the wristband has passed the anti-corrosion test, and the skin care products will not cause corrosion to the wristband. Secondly, we can see that there are holes in the bracelet. As long as you aim at the card hole and press the metal buckle hard, you can find the size that suits your wrist. Later, when charging the smart bracelet, we can see that there are two metal contacts at the front end of the main body, which can be charged by connecting the charger. Finally, after connecting the smart bracelet with Bluetooth, you can set the function. You can set the target, indicator color, wearing mode and other related functions.