How to tell if my iPhone 5 is a 5s or 5c?

How can i tell if my iPhone is a iPhone 5s or 5c

The 5c comes in different colors and the 5s comes in silver or gold

If it is a 5s it doesn't have a white square in the middle of the home button at the bottom

Does it have a colored plastic cover? If so, it's a c. If not, it's a s.

The 5S comes in Gold, Black, and Silver. The 5C comes in Blue, Green, Yellow, Red, and White. All 5C's will have a colored backing with a black face. On the 5S the front will be the same color as the metal part with the exception of the gold one where it is white. (where the Apple Logo and Etc are). The 5S has a one color touch ID button. The 5C will have a button with a little square (similar to every iphone/ipod touch before the 5C/5S). The volume buttons on the 5s are circular, while the 5c has buttons of a bold line like (like this - but longer and a little thicker).

5S is metal

This is it

How does this relate to Nissan CARS?!