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-M5 III and Sony A7c 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). Sony A7c has external dimensions of 124 x 71 x 60 mm (4.88 x 2.8 x 2.36″) and weighs 509 g (1.12 lb / 17.95 oz) (including batteries).
Below you can see the front view size comparison of Olympus E-M5 III and Sony A7c. Sony A7c is 1mm narrower and 14mm shorter than Olympus E-M5 III but it is also 10mm thicker.
Here is the back view size comparison of Olympus E-M5 III and Sony A7c.
Now lets look at the top view comparison of Olympus E-M5 III and Sony A7c.
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 (95g ) than the Sony A7c 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 A7c has a Full frame 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 Sony A7c lenses.
Both E-M5 Mark III and A7c have weather sealings in their body, making them resistant to water and dust.
LCD Screen Size and Features
Olympus E-M5 III and Sony A7c's LCD screens has the same diagonal size of 3.