Nokia lumia series is the one of the revolution in the industry of mobile lumia series such as Nokia Lumia 520 and many other products were a hit, now coming on to this windows phone so it comprises window 8.1 with a very smooth functions in this we can directly handle our presentation, upload our pics to one drive use cortana and many more function, this WP got many remarkable features witch we only dream of Its like a laptop if own a windows phone like this then I can bet u don’t need a laptop for proper handling of your work.