In Guide to Mirrorless, I’ve matched field of view for the dissimilar focal lengths to give a revealing look at the Nikon Coolpix A vs Fujifilm X100S vs Fujifilm X100 for good measure.
The Fujifilm X100S and Nikon Coolpix A have a nearly identical resolution, and both have 14% more sensor resolving power than the Fujifilm X100 (about 30% more pixels).
Fujifilm X100: 4288 X 2488 (10.66 megapixels)
Fujifilm X100S: 4896 X 3264 (15.98 megapixels) +14%
Nikon Coolpix A: 4928 X 3264 (16.08 megapixels) +14%