1. As I understand if I fix the width and height of a UI element it can look really big on iPhone 4 and really small on iPhone 6 Plus. So is it better to use relation to the full screen via Equal Height and Equal Width? What do you usually do?
2. If I have an image that is half width and half height size of iPhone 6 Plus screen (621x1104), and then use Equal Height and Equal Width and set it for example 0.5 of width and 0.5 of height of the main UIView, doesn't it mean that the picture will look perfect on iPhone 6 Plus but will be distorted on iPhone 4, because the relation between width and height are different on those devices? So how do you handle this situation?