The Z5 Compact seemed popular so thought this may be useful for some people - only available in Gold colour though.
UPDATE: Also available in white (thanks BargainHunter) http://www.ebay.com.au/itm/282100623892
Not sure about the heating issues related to the snapdragon 810 but pretty much the same as the Z5C except this is obviously bigger (5.2 inches vs 4.6 inches) and has more RAM (3gb vs 2gb).
Actually, they also have it in White http://www.ebay.com.au/itm/282100623892