[kuschku]

Take a look at the RAW images at full scale. Compare that with even a cheap Sony APS-C camera's RAW images.

The quality difference is massive, and not in favour of the iPhone. Apple has awesome algorithms to post-process these images, but garbage in, garbage out, you can only fix so much.

A larger sensor means you naturally get much better low light capabilities, much better bokeh, and the ability to increase the dynamic range without losing resolution.

What e.g. Google Pixels call "HDR+" is what high end Canon cameras can do at 24 frames a second, due to the higher dynamic range of their sensors and the integration of two independent gain circuits.