Below you can see the front-view size comparison of the Fujifilm XQ1 and Fujifilm X-T10. The Fujifilm XQ1 is clearly the smaller of the two cameras. Its body is 18mm narrower, 24 mm shorter and 8 mm thinner than the Fujifilm X-T10.
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.