If the 5 inch phone that I posted yesterday is not enough for you then it's 5.5 inch version might be your next target.
It has the same Mediatek MT6735 64-bit quad-core processor with LTE but it has 5.5 inch HD display, 13 MP rear camera, 2 GB RAM and 16 GB ROM.
It also has 2.5D glass. As I got more time than it's 5 inch version, I was able to check it's audio quality by watching Eraserheads' 1995 music video on Youtube and boy, the audio is something that I didn't expect for a 64-bit Mediatek SoC.
As a nice addition, I checked out that it has USB OTG capability. No information yet on it's possible price range and release date.