These are really interesting. Thanks for putting them up. I took a look near the edge of the images and clearly the lenses are struggling because you can see from the enlargement below, the 12MP actually gives better detail/texture than the 48MP at the edge of the frame
View attachment 2075965
Yup, for example, in the 48 Mpixel image, the writing on the back of the white box seems to be a bit less readable. While it's contrasty stuff (unlike with the blue-on-blue CD covers I mentioned in the other thread), the lenses indeed struggled with this part too.
EDIT: a 24mm equiv ((under around 40mm equiv) the wider, the worse corner sharpness) mobile lens serving a BIIIG sensor - that's a bad omen with regards to corner sharpness
Nevertheless, the resolution of the lens in the non-extreme areas (corners etc.) is excellent. While I haven't officially compared it to my (two!) Nokia 808's, based on my past experience (pixel-level sharpness) with the Nokia, I'd say the iPhone is better. (And it should be, given that there has been 10,5 years(!) between the two models.)
What I'm also VERY interested in are 'pure' RAW files completely outside of the imaging chain (staking etc). While I'm certainly aware of the problems of such a small sensor (there'll be TONS of noise etc.), in certain conditions, it MAY be better (with proper post processing) than Apple's software pp "baked in" in these ProRAWs.