Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Leica M-Monochrom and Panasonic GX8 side-by-side from the front, back and top in their relative dimensions. Leica M-Monochrom has external dimensions of 139 x 80 x 37 mm (5.47 x 3.15 x 1.46″) and weighs 600 g (1.32 lb / 21.16 oz) (including batteries). Panasonic GX8 has external dimensions of 133 x 78 x 63 mm (5.24 x 3.07 x 2.48″) and weighs 487 g (1.07 lb / 17.18 oz) (including batteries).
Below you can see the front-view size comparison of the Leica M-Monochrom and the Panasonic GX8. Panasonic GX8 is 6mm narrower and 2mm shorter than Leica M-Monochrom but it is also 26mm thicker.
Here is the back view size comparison of the Leica M-Monochrom and Panasonic GX8.
Now lets look at the top view comparison of Leica M-Monochrom and Panasonic GX8.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic GX8 is significantly lighter (113g ) than the Leica M-Monochrom which may become a big advantage especially on long walking trips.
Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you also have to take into account the lenses that you will be using with these bodies. Since Leica M-Monochrom has a Full frame sensor and Panasonic GX8 has a smaller Four Thirds sensor, Panasonic GX8's lenses for a similar focal length and aperture will generally be lighter and smaller than the Leica M-Monochrom lenses.
Weather Sealing
Thanks to the weather-sealed body of the GX8, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the M-Monochrom.
LCD Screen Size and Features
Panasonic GX8's 3.00" LCD screen is slightly larger than Leica M-Monochrom's 2.5 screen.
Moreover, Panasonic GX8 sports a
Fully Articulated screen which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over-the-head levels, and especially very useful for shooting selfies and video. On the other hand, Leica M-Monochrom has a fixed type screen which provides almost no flexibility in shooting positions compared to GX8.