Below you can see the front-view size comparison of the Fujifilm X-Pro2 and Fujifilm X100F. The Fujifilm X100F is clearly the smaller of the two cameras. Its body is 14 mm narrower, 8 mm shorter and 4 mm thinner than the Fujifilm X-Pro2.
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.