As far as the KeepB2 bracelet is concerned, it is only a qualified bracelet product, and neither hardware nor function can be compared with other brands of smart bracelets. The basic functions of the smart bracelet are basically complete, but the function is single and weak. Not everyone has professional sports knowledge, and it is too expensive to go to the gym to teach privately. In this case, it may be a breakthrough attempt to add keepAPP to the Keep bracelet.