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 Panasonic S5 and Sigma fp side-by-side from the front, back and top in their relative dimensions. Panasonic S5 has external dimensions of 133 x 97 x 82 mm (5.24 x 3.82 x 3.23″) and weighs 714 g (1.57 lb) (including batteries). Sigma fp has external dimensions of 113 x 70 x 45 mm (4.45 x 2.76 x 1.77″) and weighs 422 g (0.93 lb / 14.89 oz) (including batteries).
Below you can see the front view size comparison of Panasonic S5 and Sigma fp. Sigma fp is clearly the smaller of the two cameras. Its body is 20mm narrower, 27mm shorter and 37mm thinner than Panasonic S5.
Here is the back view size comparison of Panasonic S5 and Sigma fp.
Now lets look at the top view comparison of Panasonic S5 and Sigma fp.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sigma fp is significantly lighter (292g ) than the Panasonic S5 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 have to also take into account the lenses that you will be using with these bodies. Since both Panasonic S5 and Sigma fp have the same Leica L lens mount and Full frame sized sensors, lenses will not be a differentiator on total size of the system.
Both S5 and fp have weather sealings in their body, making them resistant to water and dust.
LCD Screen Size and Features
Sigma fp's 3.2 LCD screen is slightly larger than Panasonic S5's 3" screen.
On the other hand, Panasonic S5 sports a Fully Articulated screen
which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over the head levels, and especially very useful for shooting selfies and video. On the other hand, Sigma fp has a fixed type screen which provides almost no flexibility in shooting positions compared to S5.