Why Sony releasing many phone after a couple of month? In my opinion they wanted to deliver that Sony Xperia is well balanced phone. And it's up to the loyal Sony fans to choose whatever they wanted depending on budget of course.
they've discontinued the Z series of phones for the new X series.. and wow it looks the same, I guess no one in the Sony Mobile division has a clue what is going on in there, all these phones are pretty much the same design same camera with horrible software, the same 1080p triluminos display since the Z2 I believe. I think they should just exit the mobile industry as they bring nothing each year to this space.