Changable batteries, maybe, for the environment. But I've never used a phone long enough for this to matter because unoptimized software starts crippling phones after 4 years anyway.
This is absolute bollocks. Unless you are buying dogshit budget phones, they all continue to run fine after 4 years. I have phones from 2017 and 2018 that continue to operate without major issue today. Until very recently most Android phones weren't even receiving feature updates beyond 4 years so I suspect you've just completely fabricated this story to justify your upgrades.
If someone offers the slimmest phone, I have some doubts regarding structural integrity. Especially, the way I (unintentionally) often treat my phone, it'll probably bend or break within weeks.
Military grade impresses everyone but those who served.
In the mind of a soldier military grade is the cheapest, mass produced item that barely does the job, can be abandoned on the battlefield without regrets 😅
Is that a protected term where you live? In Germany a lot of products, including the cheapest and crappiest ones, are advertised as military grade and that doesn't give any indication on quality or durability.
The performance of phones are almost irrelevant these days for most people. What matters is how they look, their battery time and if they have a good user experience without forced shitty apps.
I've been realizing over the past weeks that phone weight in my hand significantly influences how I type, so I would indeed like a lighter phone. This one does catch my eye.