I can only speak for my experience with iPhones. I went from iPhone 4 -> 7 -> 11 -> 13. I upgraded on a shorter cycle from 11 to 13 so I could pass down my 11

I can only speak for my experience with iPhones. I went from iPhone 4 -> 7 -> 11 -> 13. I upgraded on a shorter cycle from 11 to 13 so I could pass down my 11 to my kids. In each instance, the image quality has improved tremendously. Going from 4 to 7 was a massive jump in terms of resolution. Going from 7 to 11 was a boost in color and clarity, despite being nearly the same MP. Going from 11 to 13 was a huge improvement in night mode and shooting speeds. Also, these are non-PRO phones, as I cannot afford the PRO ones. I imagine the improvement in the PRO iPhone cameras are nicer. Every iteration has been an improvement to me, and obviated the need for a DSLR in every day use.