condition for loading storyboard for iphone 6 without autolayout

is it work for iphone 6 in potrait view without autolayout?

CGRect screenBounds = [[UIScreen mainScreen] bounds];
     if (screenBounds.size.height >= 568) {
     // code for iphone5 and iphone 6 is it work for different frame etc set? 
     }
     else {
     // code for iphone4
     }