I have bought nokia lumia 630 in june 2014 it is the firts windows phone having dual sim and ship with windows 8.1 os.
The design of the phone is very much same as the other windows phone like lumia 520, 620 the phone doesn’t look sleeky and good to hold .the material of the back cover is made of polycarbonet and available in black white blue and green colours.
The camara is 5mp which takes very great photos the only dissappointing is no secondary camara
As compare to other phones like android they provide more specification than that but windows phone atleast donot lags even in 512 mb ram and virus free and its battery is asusual nokia has good battery backup.
The screen is gorilla glass 3 and it is very very good. my phone many a times falls but it never damage
This phone has some limitations as compare to other android phones but it doesnot disappoint at this price
Today it has 3 years to the phone and doesnot have any repairing and it operates smooth as the 1st time I bought