Both the Samsung Galaxy S6 and the HTC One M9 have already been released but Sony remains reluctant to share anything about the upcoming Xperia Z4. The last time Sony spoke, they revealed that the Z3 and Z3 Compact is going to stick around longer.
In other words, this means that Sony has reverted back to making annual releases for its Xperia devices instead of launching a new smartphone once every 6 months. Hence, we can expect the Z4, Z4 Compact and Z4 Tablet to all get announced in the coming months before making their respective debut later this year.
While Sony has not made any indications on this yet, we are confident that the Z4 is going to run on the 2.8GHz Snapdragon 810 processor with 4GB of RAM.
