[mensetmanusman]

It would be a noisy high-resolution image. If the pixels aren’t big enough to pick up enough statistical photons, then you get a mess.

[dzhiurgis]

I've played with a friends Samsung S21 Ultra 108 MP and it blows out of the water my iPhone 12 Pro Max, provided you can keep it stable - portraits were insanely realistic, yet I was unable to capture a single photo of my toddler!