TechSpot published Sony Xperia X Performance
A quote from the article:
The new Xperia X series may not carry the same name as its predecessor, the Xperia Z, but there's no mistaking these products for a revolutionary change. I've been testing the the top-end Xperia X Performance for a few weeks now and I've found it to be remarkably similar to the Xperia Z5, sadly this design is getting stale.Sony Xperia X Performance Review @ TechSpot