I just saw a similar post here

https://lemm.ee/post/28680260

I still have a first generation iPod touch that works just fine…. It has one spot on the screen where the pixels are gone about the size of a finger where I’m guessing it has just been pushed too many times I dunno but I wonder if this is because they had not figured out how to integrate planned obsolescence into these gadgets because they were the first of their kind….

Love Veronica explains