For me the move from my old Samsung note to Sony Z4 tablet was a bad decision, my bootloader is not allowed to be unlocked, so cant root, so my backups are useless, there are apps on it, that I cant remove or disable, by removing half of it, and adding loads of bloat wear, I cant ever turn off auto brightness, so brightness goes up and down. As for the keyboard, I never use it, as it just gets in the way. Also I thought Samsung devises were laggy wait until you try the z4. They’ve turned a good machine crap, or should I say into a i-pad, their locked down to.
Pixels density is not so good in Z4 tab. as comapred to ipad mini 4. Not good at all on price we can go for further tablets in market at the price of sony tablet z4.