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-M10 IV and Nikon 1 J4 side-by-side from the front, back and top in their relative dimensions. Olympus E-M10 IV has external dimensions of 122 x 84 x 49 mm (4.8 x 3.31 x 1.93″) and weighs 383 g (0.84 lb / 13.51 oz) (including batteries). Nikon 1 J4 has external dimensions of 100 x 60 x 29 mm (3.92 x 2.36 x 1.12″) and weighs 232 g (0.51 lb / 8.18 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus E-M10 IV and the Nikon 1 J4. Nikon 1 J4 is clearly the smaller of the two cameras. Its body is 22mm narrower, 24mm shorter and 20mm thinner than Olympus E-M10 IV.
Here is the back view size comparison of the Olympus E-M10 IV and Nikon 1 J4.
Now lets look at the top view comparison of Olympus E-M10 IV and Nikon 1 J4.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon 1 J4 is significantly lighter (151g ) than the Olympus E-M10 IV 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.
Weather Sealing
Unfortunately neither the Olympus OM-D E-M10 IV nor Nikon 1 J4 provides any type of weather sealing in their bodies, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Olympus E-M10 IV and Nikon 1 J4's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Olympus E-M10 IV features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels whereas the Nikon 1 J4 has a fixed type screen which provides less flexibility in shooting positions compared to E-M10 IV.