This mobile is amazing work as compare other Samsung under series of s5 .in s5 all features are more upgrade in this version .also add many sensor .sound quality improve. .video quality also increase. all of this makes me curious why is samsung refusing to give the consumers what they want .namely a metal chassis Samsung galaxy s5 is a more solid phone than the galaxy s4 that for sure and looks more well packaged thanks to the wider back and yhe grippier pock marked battery cover amazing features ever.