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

The specs are pretty much the same so why would you pay £100 more just to say you are superior? I'm digging the green 5c as it's my favorite colour and the plastic will protect my phone because I always drop my phone.

The 5c is using older/current hardware. The 5s is using newer processor, and newer screen tech.

IPhone 5s got the new processor + fingerprint sensor so the performance increases.