Below you can see the front view size comparison of Canon G1 X III and Olympus E-M5 II. Canon G1 X III is 9mm narrower and 7mm shorter than Olympus E-M5 II but it is also 6mm thicker.
Canon G1 X III vs Olympus E-M5 II - Front View
Canon G1 X III vs Olympus E-M5 II - 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