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 Sony A9 and Leica SL2-S side-by-side from the front, back and top in their relative dimensions. Sony A9 has external dimensions of 127 x 96 x 63 mm (5 x 3.78 x 2.48″) and weighs 673 g (1.48 lb / 23.74 oz) (including batteries). Leica SL2-S has external dimensions of 146 x 107 x 83 mm (5.75 x 4.21 x 3.27″) and weighs 931 g (2.05 lb / 32.84 oz) (including batteries).
Below you can see the front-view size comparison of the Sony A9 and the Leica SL2-S. Sony A9 is clearly the smaller of the two cameras. Its body is 19mm narrower, 11mm shorter and 20mm thinner than Leica SL2-S.
Here is the back view size comparison of the Sony A9 and Leica SL2-S.
Now lets look at the top view comparison of Sony A9 and Leica SL2-S.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony A9 is significantly lighter (258g ) than the Leica SL2-S 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 both Sony A9 and Leica SL2-S have the same Full frame sized sensor, their lenses for a similar focal length and aperture will be similar in size and weight.
Weather Sealing
Both the A9 and the SL2-S have weather sealings in their bodies, making them resistant to water and dust.
LCD Screen Size and Features
Leica SL2-S's 3.20" LCD screen is slightly larger than Sony A9's 3 screen.
On the other hand, Sony A9 LCD screen has a
Tilting feature where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels. On the other hand, Leica SL2-S has a fixed type screen which provides less flexibility in shooting positions compared to A9.