You should download and explore WeChat (微信）. It seems like facebook at this point is now chasing functionality that's been present in Chinese apps for several years. WeChat lets you order food, buy train tickets, etc in addition to the messaging. The comparison I've heard is that in software B2C China is ahead by 5 years, B2B USA leads by 5 years. And China is defining new C2C and O2O. Hardware is a toss-up.