Confused about the new Iphone 5C and 5S?

For starters, I live in the UK.
People on Twitter have said about the Iphone 5C, so I looked it up, but on the apple website it says there's also an Iphone 5S. I thought this wasn't out until later?

Can someone explain what the IphoneC is, the UK price, and what it different from other Iphones?

The 5S hardware is twice as fast and is 64bit (and thats the only 64bit smartphone on the market today).It also has the aluminum casing, is a little larger (like 5) and fingerprint scanner which is what I like. I also like that you don't even press the home button (won't wear it out) as the fingerprint is automatically recognized when you just put it over it.

The iPhone 5s is Apple's high-end, luxury smartphone, with the aluminum build, fingerprint sensor, and 64-bit architecture to prove it. The iPhone 5c meanwhile, comes clad in five fun plastic colors, and starts at £65 less than the iPhone 5s.
iPhone 5c is £469 - £549
iPhone 5s is £549 - £709