Mobile phone might, but battery will go bad in 3-4 years and if it's OLED screen it will show ghosting for sure after same period of time. Earbuds no chance. They will die much sooner, at least battery will.
The good news is any phone repair shop will be able to replace your battery for a reasonable price. Same with the screen but obviously that is a lot more expensive. My pixel 3 and pixel 1 hasn't shown any ghosting in the screen yet but I don't think I use apps with persistent UI often. Word of advice is use gesture navigation instead of the 3 buttons because the 3 buttons will burn in.
My SO watches a lot of YouTube so his 3a had burn in where the video usually is (like the top 1/3 of the device).
Yea, my 2nd gen Airpods are cooked after 4½ years of use. I get maybe 45min to an hour of battery and they’re tinny and quiet and the microphones speed working. A far cry from their performance when they were new but for listening to podcasts on the go they’re still good enough…
I'd consider 4.5 years quite good to be honest. I still dislike the idea of built-in expiration date, but it's still a good time. Average is probably lower and closer to 2 years. LiIon batteries usually survive around 600-1000 charge cycles, more if you don't use top 20% of the voltage range but no one is doing that these days. Maximum capacity starts dropping really fast, after some 2-3 months of use, as it's frequently noticed with laptop batteries. So I'd say 4.5 years is about at the tail end of that expected maximum life. Wish they made batteries replaceable. But soon they will be thanks to EU.
I mean, let’s be honest, earbuds have always kind of been consumables. Before wireless, when the cable eventually broke, you had to get new ones. Now, it’s when the battery dies. The difference is, AirPods 2 are 150€ and EarPods, which are basically the same thing, just wired, are 20€…
Always online displays are more prone to this. Manufacturers mitigate this by moving numbers around, like screen saver. Simply put OLED screens emit light, instead of filtering it like LCD. Am not quite sure why they degrade over time, but they do... especially blue diodes. But how fast this forms really depends on usage patterns. Whether you like bright screen or not, whether you have AOD, whether there's elements always visible on screen (back button, clock, etc). With my own devices at 3 years of use there wasn't any signs but they start showing after that. My mom who uses the same device, after changing the screen, has this happen to her not even a year in.