Jonathan,
The screen resolutions are exactly what you need:
Jonathan,
The screen resolutions are exactly what you need:
320 x 480 = iPhone 4/4S
320 x 568 = iPhone 5/5S
375 x 667 = iPhone 6
414 x 736 = iPhone 6+
When you look at the devices by screen resolution, these help tell you what model they are. Do return to the article above as it’s all explained there!