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 Q-P and Sigma DP2 Quattro side-by-side from the front, back and top in their relative dimensions. Leica Q-P 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). 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).
Below you can see the front-view size comparison of the Leica Q-P and the Sigma DP2 Quattro. Sigma DP2 Quattro is 13mm shorter and 11mm thinner than Leica Q-P but it is also 31mm wider.
Here is the back view size comparison of the Leica Q-P and Sigma DP2 Quattro.
Now lets look at the top view comparison of Leica Q-P and Sigma DP2 Quattro.
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-P which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Leica Q-P nor Sigma DP2 Quattro 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
Leica Q-P and Sigma DP2 Quattro'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.