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 Typ 262 and Leica Q side-by-side from the front, back and top in their relative dimensions. Leica M Typ 262 has external dimensions of 139 x 80 x 42 mm (5.47 x 3.15 x 1.65″) and weighs 600 g (1.32 lb / 23.99 oz) (including batteries). Leica Q has external dimensions of 130 x 80 x 93 mm (5.12 x 3.15 x 3.66″) and weighs 640 g (1.41 lb / 22.58 oz) (including batteries).
Below you can see the front-view size comparison of the Leica M Typ 262 and the Leica Q. As you can tell, actually this is not a fair size comparison since Leica Q has a built-in lens but Leica M Typ 262 doesn't. Once you put a lens on M Typ 262, its thickness will increase significantly.
Here is the back view size comparison of the Leica M Typ 262 and Leica Q.
Now lets look at the top view comparison of Leica M Typ 262 and Leica Q.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Leica M Typ 262 is 40g lighter than the Leica Q but we don't think this will make a significant difference.
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 Typ 262, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Leica M (Typ 262) nor Leica Q (Typ 116) provides any type of weather sealing in their bodies, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Mirrorless Cameras with Weather Sealing Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Leica M Typ 262 and Leica Q's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.