Yup those are the kind of devices ive been looking at, problem with sony is their speakers are crap compared to other manufacturers and up until the xz2 you cannot use the fingerprint sensor in the USA. I have actually looked into custom rom's but cant find anything for my phone, im fine with 6.0 honestly just wasnt sure how important security updates were. I mainly use my phone for text/calls/chromecasting and watching twitch. (i have a gaming pc and dont game on my phone, specs i couldnt care less about lol)
Here is my phone:
https://www.gsmarena.com/alcatel_idol_3_(4_7)-7080.php
Iphone sized android with amazing speakers, really confusing why more manufacturers dont make stuff like this anymore. Even going with a xperia compact would be a downgrade, the speakers on this blow away what sony puts on theirs.