What would you prefer, a Xperia Z5 or an Xperia X?

Question

Now with Black Friday, I can find the Z5 for 399 euros or the Xperia X for about the same price, which rises to about 450 if we refer to Xperia X Performance (but does not have FM I look for it). I read terrible things about the Z5 and its Qualcomm 810, that's why I doubt it.

Answer 1

I have the Z5 Compact and the heat problem is already more than solved, besides this month (according to Sony) receives Nougat.