Sony always releases the latest flagship model on MWC every year, which seems a little different this year. According to foreign media, Sony Xperia Z4 will not appear in MWC 2015. In the exposed email, Sony said that it will not be released until May or even November. Of course, this is not to say that Sony will not participate in MWC 2015, but that it is always a bit sad without Xperia Z4.
Source
