I am using Lumia 535 since two years. The worst mobile I have never seen before. It is very difficult to handle it is not user friendly. It is works on Windows operating system. H sound reception is also very low. Dody design is somewhat good. Very low camera quality. performance is not good its hanging when using internet. And there is very less number of application. No 4g support. Battery backup is low. Very bad mobile. Waste of money.