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 Olympus E-M5 III and Samsung Galaxy NX side-by-side from the front, back and top in their relative dimensions. Olympus E-M5 III has external dimensions of 125 x 85 x 50 mm (4.92 x 3.35 x 1.97″) and weighs 414 g (0.91 lb / 14.60 oz) (including batteries). Samsung Galaxy NX has external dimensions of 137 x 101 x 26 mm (5.39 x 3.98 x 1.02″) and weighs 495 g (1.09 lb / 17.46 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus E-M5 III and the Samsung Galaxy NX. Olympus E-M5 III is 12mm narrower and 16mm shorter than Samsung Galaxy NX but it is also 24mm thicker.
Here is the back view size comparison of the Olympus E-M5 III and Samsung Galaxy NX.
Now lets look at the top view comparison of Olympus E-M5 III and Samsung Galaxy NX.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Olympus E-M5 III is significantly lighter (81g ) than the Samsung Galaxy NX 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 Samsung Galaxy NX has an APS-C sized sensor and Olympus E-M5 III has a smaller Four Thirds sensor, Olympus E-M5 III's lenses for a similar focal length and aperture will generally be lighter and smaller than the Samsung Galaxy NX lenses.
Weather Sealing
With its weather-sealed body, we believe that the E-M5 Mark III has a big advantage over the Galaxy NX which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Samsung Galaxy NX's 4.80" LCD screen is slightly larger than Olympus E-M5 III's 3 screen.
On the other hand, Olympus E-M5 III 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, Samsung Galaxy NX has a fixed type screen which provides almost no flexibility in shooting positions compared to E-M5 Mark III.