@jacqueline I have an iPhone 11 from 2019 and I fear I'll have to replace it eventually. I feel like this phone could last at least ten years. For my laptops, I've set myself similar targets. I'm happy to pay CHF 800 for this phone and if we get 10 years out of it I'd say it was a good deal. The way it works with me, my wife and her parents is that the older phones often get handed down, so the oldest phone that's still working is an iPhone 6 from around 2014 that I originally owned. So it looks as if we might be making that 10 year goal with our phones.
(All dates from the Wikipedia page.)