Below you can see the front-view size comparison of the Panasonic LS5 and Fujifilm X-T10. The Panasonic LS5 is clearly the smaller of the two cameras. Its body is 21mm narrower, 21 mm shorter and 14 mm thinner than the Fujifilm X-T10.
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.