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-M1 III and Olympus E-M1 II side-by-side from the front, back and top in their relative dimensions. Olympus E-M1 III has external dimensions of 134 x 91 x 69 mm (5.28 x 3.58 x 2.72″) and weighs 580 g (1.28 lb / 20.46 oz) (including batteries). Olympus E-M1 II has external dimensions of 134 x 91 x 67 mm (5.28 x 3.58 x 2.64″) and weighs 574 g (1.27 lb / 20.25 oz) (including batteries).
Below you can see the front view size comparison of Olympus E-M1 III and Olympus E-M1 II. Olympus E-M1 III has the same height and width with Olympus E-M1 II. On the other hand, with a thickness of 69mm, it is 2mm thicker.
Now lets look at the top view comparison of Olympus E-M1 III and Olympus E-M1 II.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Olympus E-M1 II is 6g lighter than the Olympus E-M1 III but we don't think this will make a significant difference.
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 Olympus E-M1 III and Olympus E-M1 II have the same Micro Four Thirds lens mount and Four Thirds sized sensors, lenses will not be a differentiator on total size of the system.
Both E-M1 III and E-M1 II have weather sealings in their body, making them resistant to water and dust.
LCD Screen Size and Features
Olympus E-M1 III and Olympus E-M1 II's LCD screens has the same diagonal size of 3".
Both cameras feature Fully Articulating screens
where you can change the angle of the screen to make it easier to shoot from waist or over the head levels. Fully articulating screens are also useful for taking Selfie shots and video.