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 Olympus E-M1X and Sony A7 III side-by-side from the front, back and top in their relative dimensions. Olympus E-M1X has external dimensions of 144 x 147 x 75 mm (5.67 x 5.79 x 2.95″) and weighs 997 g (2.20 lb / 35.17 oz) (including batteries). Sony A7 III has external dimensions of 127 x 96 x 74 mm (5 x 3.78 x 2.91″) and weighs 650 g (1.43 lb / 22.93 oz) (including batteries).
Below you can see the front view size comparison of Olympus E-M1X and Sony A7 III. Sony A7 III is clearly the smaller of the two cameras. Its body is 17mm narrower, 51mm shorter and 1mm thinner than Olympus E-M1X.
Here is the back view size comparison of Olympus E-M1X and Sony A7 III.
Now lets look at the top view comparison of Olympus E-M1X and Sony A7 III.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sony A7 III is significantly lighter (347g ) than the Olympus E-M1X 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 Sony A7 III has a Full frame sensor and Olympus E-M1X has a smaller Four Thirds sensor, Olympus E-M1X's lenses for a similar focal length and aperture will generally be lighter and smaller than the Sony A7 III lenses.
Both E-M1X and A7 III have weather sealings in their body, making them resistant to water and dust.
LCD Screen Size and Features
Olympus E-M1X and Sony A7 III's LCD screens has the same diagonal size of 3".
Sony A7 III features a Tilting only screen
which is mostly only good for shooting from waist or over the head levels. On the other hand, Olympus E-M1X sports a Fully Articulated screen
which is more flexible and useful especially for taking Selfie shots and video.