Is there really much of a difference between the iphone 5 and the 5s?

Is there really much of a difference between the iphone 5 and the 5s?

The 5S hardware is a 100 times better.

Yes.
The 5s has a Way faster processor chip, the 5s comes in gold, 5s comes in space grey, 5s has a fingerprint scanner built into the home button.

The iPhone 5 has none of these things

The iPhone 5 is more closely related to the iPhone 5c. Same phone, just a different body for the most part.