It's not unknown that the iPhone 4 is definitely a lot slower than the brand-new iPhone 5S. But, just how much slower is it?
The iPhone 4 with the A4 processor is the oldest iPhone that Apple currently supports with iOS 7, with the iPhone 5S with the M7 64-bit processor being the newest.
The results aren't too shocking; the iPhone 5S is definitely a lot faster than the iPhone 4. However, the iPhone 4 is a lot slower than I sure expected compared to the iPhone 5S! Watch the video below to see the difference.