Samsung A50, the cheapest smart phone I could find 5 years ago and it's still going strong. I really don't get the flagship phone craze. I, as I think most people, only use my phone to browse the web, check emails, sometimes watch a youtube video and well, phone people. This little guy has been perfect for that and has no sign of getting slower. The battery still easily gets me through a day with music listening (love the jack btw), web browsing and even some light GPS use.
Not gonna lie, I sometimes miss having a good camera with me, but after buying a half decent DSLR I'm still at or a bit below what a flagship costs nowadays.
When this phone dies a couple years from now I'll probably just get the new cheapest phone in Samsung's lineup lol.
Ubuntu in the early 2000s. My dad bought a little netbook that had it pre-installed. I was hooked, I was using Windows XP up to that point and it was something entirely different. My dad was kind of a techie at the time but none of us had any experience with Linux up to that point, still, we got the hang of it rather quickly and Linux had a lot more not so obvious problems at that time.
That's why I'm saying a long time now, Linux is good enough as it is. It has been good enough for a long time. If you give it to people it works. But you have to give it to them. Normal people don't install their OS', as far as they are concerned it's a part of the machine itself. Linux will only take off if it gets pre-loaded on systems as Windows and Mac was/is to this day. I Canonical wouldn't have partnered with some laptop OEMs back in the day and I wouldn't have gotten linux in my hand it maybe would have took years before I got to know linux and I don't know if I would have installed it on my own.