I purchased infocous M530 about 8 months it have kitkat installed in it can’t be upgraded to lolipop or masmallow it have heating problem and it charging time is very slow its abouts 3& 4 hours it have corning gorilla glass 3 but it brock up very very easily in my case it speaker quality is not very good and it speaker is burst while playing games it automatically switched off.
Its battery is not good because if you restart the phone its battery level gets down very fast.
So at last I think its price must be some low so that you can buy it with full satisfaction.