well get the 6s its much faster than 5s it a verrrrryyyy big screen and the colors are amazing the camera quality i slightly better ios 9 will...
well you can get a codec for seroto etc but wma vs mp3 to me i don't really hear much of a difference but stick with mp3 if you cant get a codec
well ns6 to me is for begginners but if your advanced go for the ns7 2 but ya upgrade to ns7 its wayy better trust me
