Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Ricoh WG-6 and Leica M-Monochrom side-by-side from the front, back and top in their relative dimensions. Ricoh WG-6 has external dimensions of 118 x 66 x 33 mm (4.65 x 2.6 x 1.3″) and weighs 246 g (0.54 lb / 8.68 oz) (including batteries). 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).
Below you can see the front view size comparison of Ricoh WG-6 and Leica M-Monochrom. Ricoh WG-6 is clearly the smaller of the two cameras. Its body is 21mm narrower, 14mm shorter and 4mm thinner than Leica M-Monochrom. As you can tell, actually this is not a fair size comparison since Ricoh WG-6 has a built-in lens but Leica M-Monochrom doesn't. Once you put a lens on M-Monochrom, its thickness will increase significantly.
Comparison image of Ricoh WG-6 and Leica M-Monochrom Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Ricoh WG-6 and Leica M-Monochrom.
Comparison image of Ricoh WG-6 and Leica M-Monochrom Size and Weight - Back View
Now lets look at the top view comparison of Ricoh WG-6 and Leica M-Monochrom.
Top View Comparison image of Ricoh WG-6 and Leica M-Monochrom Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Ricoh WG-6 is significantly lighter (354g ) than the Leica M-Monochrom which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on M-Monochrom, the total kit will weigh much higher.
Weather Sealing
Thanks to the weather sealed body of WG-6, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to M-Monochrom.
LCD Screen Size and Features
Ricoh WG-6's 3.00" LCD screen is slightly larger than Leica M-Monochrom's 2.5 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.