So recently I’ve been seeing the trend where Android OEMs such as Google, Samsung, etc. have been extending their software release times up to like five, six, and seven years after device release. Clearly, phone hardware has gotten to the point where it can support software for that long, and computers have been in that stage for a very long time. From what I can tell, the only OEM that does this currently might be Fairphone.
Edit: The battery is the thing that goes the fastest so manufacturers could just offer new batteries and that would solve a lot of the problem.
Well 15 years won’t quite work as well due to cell frequency changes and the occasional fundamental software changes, but people could really stand to keep their phones for like 5 years no problem. New stuff coming out isn’t usually “revolutionary” most of the time. AI isn’t cool enough to want right now, and picture stuff only ever gets a minor improvement. Same for battery life or screen quality.