Hiiiiiiiiiiiiiii as my experience sony is very good brand. and sony xperia M4 is demandable mobile. Sony Xperia M4 Aqua smartphone with 5.00-inch 720x1280 display powered by 1GHz processor alongside 2GB RAM and 13-megapixel rear camera.its function is good but this phone heated very soon and its sound is very low to be listen .