Hi,
As I have a Nexus 9 - I want to free up my Xperia Z which I purchased last year from Sydney Airport. Comes fully boxed with receipt / foldable Poetic cover / screen protector added / chargers etc. The tablet was not used much so the battery life and hold is excellent. I typically get 8-9 hours of screen on time.
Less than 5mm thickness, water and dust proof. I believe it is going to get the Lollipop update also. Sony has been pretty good with OS updates.
$300 firm.