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 G3 and Olympus E-M10 III side-by-side from the front, back and top in their relative dimensions. 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). Olympus E-M10 III has external dimensions of 122 x 84 x 50 mm (4.8 x 3.31 x 1.97″) and weighs 410 g (0.90 lb / 14.46 oz) (including batteries).
Below you can see the front-view size comparison of the Panasonic G3 and the Olympus E-M10 III. Panasonic G3 is 7mm narrower and 3mm thinner than Panasonic G3 but they have the same height of 84mm.
Comparison image of the Panasonic G3 and the Olympus E-M10 III Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Panasonic G3 and Olympus E-M10 III.
Comparison image of the Panasonic G3 and the Olympus E-M10 III Size and Weight - Back View
Now lets look at the top view comparison of Panasonic G3 and Olympus E-M10 III.
Top View Comparison image of the Panasonic G3 and the Olympus E-M10 III Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic G3 is significantly lighter (74g ) than the Olympus E-M10 III 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 G3 and Olympus E-M10 III 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
Unfortunately neither the Panasonic Lumix DMC-G3 nor Olympus OM-D E-M10 Mark III 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
Panasonic G3 and Olympus E-M10 III's LCD screens have the same diagonal size of 3.00 inches.
Olympus E-M10 III features a
Tilting-only screen which is mostly only good for shooting from waist or over-the-head levels. On the other hand, Panasonic G3 sports a
Fully Articulated screen which is more flexible and useful, especially for taking selfies and video.