https://support.fairphone.com/hc/en-us/articles/9979180437393-Fairphone-s-Operating-System

They promise 8 years (possibly 10), so at least until late 2031.

Im pretty sure it will end up being cheaper for me on the long run, especially compared to an iPhone. Im kind of amazed that its not more expensive considering they probably spend like twice as much for the components (or rather for the conditions they are produced under), while still being more or less competitive. But I guess its possible if you dont go for 200% profit margin.

It’s the Sam Vimes theory of socioeconomic unfairness, often called simply the boots theory.

The reason that the rich were so rich, Vimes reasoned, was because they managed to spend less money.

Take boots, for example. He earned thirty-eight dollars a month plus allowances. A really good pair of leather boots cost fifty dollars. But an affordable pair of boots, which were sort of OK for a season or two and then leaked like hell when the cardboard gave out, cost about ten dollars. Those were the kind of boots Vimes always bought, and wore until the soles were so thin that he could tell where he was in Ankh-Morpork on a foggy night by the feel of the cobbles.

But the thing was that good boots lasted for years and years. A man who could afford fifty dollars had a pair of boots that’d still be keeping his feet dry in ten years’ time, while the poor man who could only afford cheap boots would have spent a hundred dollars on boots in the same time and would still have wet feet.
– Men at Arms

Personally I’ve started buying generation or two behind high-mid range phones as refurbished. I get a highish end phone for about what I used to pay for a lower end phone. There are better materials which go into higher end devices (I learned this when I worked for a phone manufacturer. Kinda shocking but also makes perfect sense at the same time)