Leica M8 weighs 591 g (1.30 lb / 20.85 oz) and has external dimensions of 139 x 80 x 37 mm (5.47 x 3.15 x 1.46″). Considering that the average weight of Mirrorless type cameras is 422g, Leica M8 is a significantly heavy camera for its class. On the other hand, with a thickness of only 37mm, it is quite small, 11mm thinner than the average of its class.
Here is the front and top view image of Leica M8 with the dimensions:
In order to give you a better idea about the real life size of Leica M8, 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 Leica M8 with its main competitors:
Leica M8 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.