Last month I purchased this nokia lumia 830 mobile.i would say this is a completely smartphone.it fulfill my all requirement.the best thing you found this phone is its 10 mp rear camera.it capture best photo.it has also 0.9 mp front camera.i don’t like its front camera because it does not capture best selfies.it has also 5 inch display.it has also windows phone 8.1 operating system.its battery back up and resolution is quite good.it has also 1.2 quad core processor.this is one of best selling smartphone of Nokia.finally the best thing is it support 3G and 4G internet connection.i recommend this phone for my friends.