Programmer Humor

Not sure why you get Apple into this. Apps on iOS have been natively compiled from the beginning and they are amazing at running stuff on older hardware. My current iPhone 12 Mini is over three years old and smoothly runs everything I throw at it. Before that I had a 2016 iPhone SE for about four years and only replaced it because I wanted something with a better camera (I'm a semi-professional photographer so I want something decent for when I see something cool and don't have my big camera with me). I gave the SE to my mom and she used it for another two years until she decided she needed a bigger screen. It probably still works and it got its last OS update just two months ago.

As long as you don't run something super hardware hungry, you can easily use an iPhone for at least five years without any problems. Even if the battery dies halfway through, there are lots of repair shops around that will replace it for a reasonable price in case you're not comfortable with opening up the phone on your own.