The appearance of smart bracelet products are much too strange, but in fact combined there mainly are two styles on shape: round and square, or is to imitate the classic watch shape, or NBA players liked wear sports bracelet shape. Taking into account that short battery life has become a difficult problem for whole industry, most of smart bracelets now adopt a no screen design, only through the form of led dot matrix lights to display information, somewhat similar to the old MP3 ... Read more