Doesn't even come with predictive text?
My S4 seems to be quite well provisioned in this regard - when I'm typing SMS or email it's all predicty in a little bar above the keyboard. The fact that it also has slide-keyboard support built in is icing on the cake.
ps: Yes it's got a plastic back. This is a good thing rather than a bad thing, so when I inevitably put a honking great scratch in it I can replace it with another back from Ebay for 3 quid. Try that with an aluminium unibody. The only drawback with a plastic back is the frigging thing keeps getting stuck on my Clingo car mount.