Specs in the document look the same as these of Xperia XZ2 Premium, except for the accumulator. This 3400mAh battery is what suggests that it may be in fact certificate of the upcoming Pro smartphone. On the other hand it can always turn out that this is just some variant of the Premium version, maybe a China-exclusive one. Lets hope that this is after all a Pro version, and that it will breathe a new life into the tad ossified Xperia series.