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 Nikon 1 J4 and Panasonic G3 side-by-side from the front, back and top in their relative dimensions. 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). Panasonic G3 has external dimensions of 115 x 84 x 47 mm (4.53 x 3.31 x 1.85″) and weighs 336 g (0.74 lb / 11.85 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon 1 J4 and the Panasonic G3. Nikon 1 J4 is clearly the smaller of the two cameras. Its body is 15mm narrower, 24mm shorter and 18mm thinner than Panasonic G3.
Here is the back view size comparison of the Nikon 1 J4 and Panasonic G3.
Now lets look at the top view comparison of Nikon 1 J4 and Panasonic G3.
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 (104g ) than the Panasonic G3 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 Nikon 1 J4 nor Panasonic Lumix DMC-G3 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
Nikon 1 J4 and Panasonic G3's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Panasonic G3 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. Nikon 1 J4's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to G3.