X100S/T/F is a nice camera, probably slightly larger than you are looking for but usefully smaller than (say) an X-Pro 1/2.
With that said, an X-Pro 2 with the F1.4 23mm is a significantly different proposition to the X100F with the F2 23mm.
@Dammit started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
X100S/T/F is a nice camera, probably slightly larger than you are looking for but usefully smaller than (say) an X-Pro 1/2.
With that said, an X-Pro 2 with the F1.4 23mm is a significantly different proposition to the X100F with the F2 23mm.