Samsung tried this phone with its own os and it was an utter flop as we dont have any required apps running on it. The graphic interface is also not fine. The games which are available on the store are of low and cheap quality. Better go with some other brands with good features of the same price. What is the use of giving from cam which is of cheap quality better not to give that. And coming to the wifi they said 100mbps speed will support. But the download speed over wifi is very slow.