Really though, what's the point?
http://www.engadget.com/2014/09/03/sony-xperia-z3-hands-on/
It seems to have the same specs as the Z2, but is slightly thinner and lighter
Does coming out with a phone every 6 months not annoy the distributors who have to buy these and send to retailers?
They are auctioning original Xperia Z's on Grays Online brand new by the truck load for under $300, so it's obvious that a distributor has had to get rid of their worthless stock quickly
{MOD EDIT : SP : We have 3 different Sony Xperia Z3 family threads which despite their respective original specific topics, all ended up as general discussions for a particular model so I have done some tidying up.
Sony Xperia Z3 Discussion & Owners Thread
Sony Xperia Z3 Compact Discussion & Owners Thread
Sony Xperia Z3 Tablet Compact Discussion & Owners Thread}