[michrassena]

I haven't finished the article, but it seems like using the flash on the iPhone might have been enough to lower the ISO for the photo. Lower ISO = lower noise. The end results look like a typical noise reduction process. For screen-sized images, the new phones do quite well. But zoom in and it's often a painterly-blur.

[nomel]

Or, use the tools provided, to get the raw image: https://support.apple.com/guide/iphone/take-apple-proraw-pho...