What's the difference between iPhone 5 and iPhone 5c?

What's the difference between iPhone 5 and iPhone 5c?

5c is made out of plastic, and it is also cheaper.

The reviews on the 5C are actually really good, they say plastic case but apparently its very hard to break and is really durable, many websites show examples of how hard it is to break whatever they used to make that casing. 5C has a better battery also then the original 5 had.

For the function, almost the same.
Different appearance.

Is there any reason that dozens of people have to post this same question separately?

IPhone 5c is a little longer and bigger.
iPhone 5: 123.8 x 58.6 x 7.6 mm (4.87 x 2.31 x 0.30 in)
iPhone 5c: 124.4 x 59.2 x 9 mm (4.90 x 2.33 x 0.35 in)

iPhone 5 is with 4 colors: Black/Slate, White/Silver
iPhone 5c is with 5 color: White, Blue, Green, Yellow, Pink

iPhone 5 has more accessories for choice than iPhone 5C in the market.
iPhone 5 also can turn into 5C by the colorful sticker as below.