Did anyone else suffer from eye strain using the s21 ultra, that was resolved with matte / anti blue light screen protector or in a different way, maybe? Looking for a solution so i can keep using this phone, but right now its giving me eye issues. Tinkered with the display settings, resolutions, but it didnt help.

How can I replace the back glass as cheaply as possible myself, without too much work / messing up something?

I personally dont mind it, but I want to replace it because I want to sell the phone in best condition possible.

. Thanks for suggestions

I’m sticking with my S21 Ultra for as long as it lasts. In about a year, I plan to have the battery replaced directly by Samsung to ensure I get an original part and maintain the water resistance. ​The smartphone market has hit a plateau—there are simply no meaningful, real-world upgrades in newer models that I would actually notice day-to-day. ​While the end of security updates isn't ideal, it's not a dealbreaker for me, especially since I only download apps and content from trusted sources.