Compact AND the Ultra Stamina mode are the reasons i will buy a Sony again; i don't care about all the apps garbage; just using it like a feature phone. i have a Z3 Compact and a Z5 Compact, mainly using the Z3 because of the glass backside.
And i have to add that Sony has an Open Minded approach to alternative OS . I'm just waiting for the Jolla release... As you might guess, i hate Google.
Don't mind spending on Sony hardware. Very good work.

Compact is the sole reason I stay with Sony. You question their decision of making them because you're a size queen and some of us aren't. My friend got outdated SE design cause he thought that even 6s was too big. It's actually a pity that everyone is making phablets cause other smaller phones have poor specs.