Sony Xperia Z4 Release Date and Killer Features We Know So Far

The hype around Sony Xperia Z4 has gained momentum with its release date getting closer. Several features of the device have been leaked despite the Japanese electronics giant keeping mum all this while. Meanwhile, specifications of the Xperia Z4 have been leaked over the last few weeks. Here are killer features of the device we know so far. Dec 17, 2014