I would not put OLEDs for the reasons you mentioned, but also because it would drain the battery in 1 day vs 1 week. Steel is likely better and surely stronger

I would not put OLEDs for the reasons you mentioned, but also because it would drain the battery in 1 day vs 1 week. Steel is likely better and surely stronger, but manufacturers charge 2x more for steel alloy machining. At that price level, titanium also becomes an interesting option.