GSM Arena [1] shows it as 330 dpi, calculation seems to confirm it: x:= 640 / 330 => 1,(93) y:= 960 / 330 => 2,(90) sqrt(x^2 + y^2) => 3,496 inches 1. http

GSM Arena [1] shows it as 330 dpi, calculation seems to confirm it: x:= 640 / 330 => 1,(93) y:= 960 / 330 => 2,(90) sqrt(x^2 + y^2) => 3,496 inches 1. http://www.gsmarena.com/apple_iphone_4-3275.php http://www.gsmarena.com/apple_iphone_4-3275.php