I have an iPhone X (2017). My partner has an iPhone 12 (2020). The difference is very noticeable across those three years. I think often a single year's improv

I have an iPhone X (2017). My partner has an iPhone 12 (2020). The difference is very noticeable across those three years. I think often a single year's improvements are negligible but real, so any given two year's improvements are much more noticeable.