Below you can see the front view size comparison of Leica Q and Canon 5DS. Leica Q is 22mm narrower and 36mm shorter than Canon 5DS but it is also 17mm thicker.
Leica Q vs Canon 5DS - Front View
Leica Q vs Canon 5DS - Top View
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.
Camera Size Comparison
Select Two Cameras for Size Comparison