Below you can see the front-view size comparison of the Canon G9 X and Leica D-Lux Typ 109. The Canon G9 X is clearly the smaller of the two cameras. Its body is 20mm narrower, 8 mm shorter and 24 mm thinner than the Leica D-Lux Typ 109.
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.