I’m still using my 2020 SE that has the same screen size. It’s needed a battery swap last year which set me back $50, but that was installed at the Apple Store.

Apple supports their phones for quite a few years. When they drop support for this phone I’ll be on the new small phone journey myself.

2022 iPhone SE Gen 3 will be the last 4.7 inch screen. Gen 4 is rumored to be a 6.1 inch.