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 Panasonic GH3 and Panasonic G7 side-by-side from the front, back and top in their relative dimensions. Panasonic GH3 has external dimensions of 133 x 93 x 82 mm (5.24 x 3.66 x 3.23″) and weighs 550 g (1.21 lb / 19.40 oz) (including batteries). Panasonic G7 has external dimensions of 125 x 86 x 77 mm (4.92 x 3.39 x 3.03″) and weighs 410 g (0.90 lb / 14.46 oz) (including batteries).
Below you can see the front-view size comparison of the Panasonic GH3 and the Panasonic G7. Panasonic G7 is clearly the smaller of the two cameras. Its body is 8mm narrower, 7mm shorter and 5mm thinner than Panasonic GH3.
Here is the back view size comparison of the Panasonic GH3 and Panasonic G7.
Now lets look at the top view comparison of Panasonic GH3 and Panasonic G7.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic G7 is significantly lighter (140g ) than the Panasonic GH3 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. Since both Panasonic GH3 and Panasonic G7 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.
Weather Sealing
With its weather-sealed body, we believe that the GH3 has a big advantage over the G7 which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Panasonic GH3 and Panasonic G7's LCD screens have the same diagonal size of 3.00 inches.
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 Selfies and video.