I bought a Nokia X around 2 months back and it is one of the worst phones I have ever used and a total waste of money(I bought it for 7500!).It is NOT AN ANDROID PHONE as advertised.
You can just download and use some of the android apps through third party apps. Often you cannot upgrade them. Gmail, youtube nothing can be used as app on this phone. In fact, you cant access youtube even on the browsers. It is a disgusting phone. Even small brand phones are much better than this one!