Which is better to get and why? The iphone 5s or 5c?

I'm selling my blackberry z10 and looking to get an iphone, I don't know what the differences are between the 5s and 5c besides the fact the 5c is in colours. Which one is better to get and why?

5c is built with the same processor as 4s- no point. Buy 5s, it's faster, with a fingerprint lock, better quality graphics.

5c and 5s have the same cpu.
There's no real difference other than build quality. 5c plastic, 5s metal.
I think the 5c has a smaller internal memory option too. Up to 64gb I think, 5s 128gb.
imo, buy android.