Where can I find the non-retina iPhone Simulator running iOS 7.0 in Xcode 5?

How do I test my website in Xcode Iphone Simulator?

Viewing & Testing. When you're in the simulator, click open Safari, click on the URL bar, and you can paste the testing URL using ^⌘V (Edit > Paste Text), then hit enter.

There is no iOS 7 non-retina iPhone simulator as iOS 7 is only supported by retina iPhones. If you want the non-retina because of screen space you can use Window -> Scale -> 75% or 50%.