小米手环本身只能记录睡眠也运动，没有社交功能，我通过一些手段（非黑客技术）控制着小米手环的振动和灯光，并实现了社交功能， 但是由于时间问题没有去把他做成一个app应用，如果你有兴趣改造它，请联系我
Miband Bracelet itself can only record the sleep is also sports, no social function, I through some means (non hacker technology) to control the vibration and lighting of millet bracelet, and achieve social functions,But because of the time problem did not go to put him into a app application, if you are interested in it, please contact me