Canon M6 weighs 390 g (0.86 lb / 13.76 oz) and has external dimensions of 112 x 68 x 45 mm (4.41 x 2.68 x 1.77″). Considering that the average weight of Mirrorless type cameras is 437g, its weight is about average in its class. With a thickness of 45mm, it also has an average thickness.
Here is the front and top view image of Canon M6 with the dimensions:
In order to give you a better idea about the real life size of Canon M6, we have added an image of how it looks next to a credit card and an AA type battery.
Now lets compare the weight and thickness of Canon M6 with its main competitors:
Canon M6 doesn't have any environmental sealings on its body so you got to be extra careful to protect it against water and dust. If you shoot under these conditions very often, consider checking Top Mirrorless Cameras with Weather Sealing page.