You asked
Fujifilm x100vi vs ricoh gr iii hdf?
Both are fixed-lens APS-C compacts with in-body or in-lens stabilisation, so the choice comes down to framing and feel.
The Fujifilm X100VI has a 23mm f/2 lens (about 34mm on full frame) and a 40.2-megapixel sensor. You get a hybrid viewfinder and dials for everything, which I love for slowing down and shooting deliberately.
The Ricoh GR III HDF has an 18mm f/2.8 lens (about 27mm on full frame) and 24.2 megapixels. It's the wider, more pocketable of the two, and the switchable highlight diffusion filter is the main reason to pick it.
If you want a tighter, more classic street view with more resolution, I'd go Fujifilm. If you want wide and pocketable, go Ricoh. The street picks explain why these compacts suit that kind of shooting.
Written by Claude from this site's pages.