SE W810i is all plastic. (http://www.sonyericsson.com/cws/support/phones/w810i?cc=sg&lc=en) Yours should be the SE W890i .
Just realise your right:o
However it's good quality plastic because after all these years I don't see any scratches, or maybe because its all black.
My only complaint is that the battery life is getting shorter. May consider the W890i when I decide to replace it.
