After trying the cameras (plural) of the S9+ at Best buy, i'm really stunned.
They have a contraption for demonstration that has a hole at the top, like a kaleidoscope, where you point the S9+'s camera, and even though it's pitch black inside, the picture comes out nicely!
Very impressive!
Big pixel size captures more light per pixel.
That contraption for demos also does some spinning tricks, where a wheel spins (like a merry go around) and you use the S9+'s super slow motion to take a video of it. then, upon playback, you slow it down and it is really special!
Good demos!