I bought lumia 638 from amazon at the price 5399, in june 2015.After taking many search on internet I bought it from amazon at the best price during that timr.(ADVANTAGES) 1snapdragon 400 2 1.2 ghz quad core processor 3 play and record easily hd videos 4 responsive touchscreen as goood.
It is just five day to purchase it for my brother.my requirment was 3g with camera and android supported what I get that in all in this phone I would say that truly. It has 1.2 ghz proccesser and 1 gb ram.its resolution was just great.it support 480*854 display.it also 5 mp camera with memory .