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 Sigma DP2 Quattro and Leica Q side-by-side from the front, back and top in their relative dimensions. Sigma DP2 Quattro has external dimensions of 161 x 67 x 82 mm (6.34 x 2.64 x 3.23″) and weighs 395 g (0.87 lb / 13.93 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 Sigma DP2 Quattro and the Leica Q. Sigma DP2 Quattro is 13mm shorter and 11mm thinner than Leica Q but it is also 31mm wider.
Here is the back view size comparison of the Sigma DP2 Quattro and Leica Q.
Now lets look at the top view comparison of Sigma DP2 Quattro and Leica Q.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sigma DP2 Quattro is significantly lighter (245g ) than the Leica Q which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Sigma DP2 Quattro 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 Compact Cameras with Weather Sealing
LCD Screen Size and Features
Sigma DP2 Quattro 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.