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 FujiFilm HS20 EXR and Olympus E-M10 III side-by-side from the front, back and top in their relative dimensions. FujiFilm HS20 EXR has external dimensions of 131 x 91 x 126 mm (5.16 x 3.58 x 4.96″) and weighs 730 g (1.61 lb / 25.75 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 FujiFilm HS20 EXR and the Olympus E-M10 III. Olympus E-M10 III is clearly the smaller of the two cameras. Its body is 9mm narrower, 7mm shorter and 76mm thinner than FujiFilm HS20 EXR. As you can tell, actually this is not a fair size comparison since FujiFilm HS20 EXR has a built-in lens but Olympus E-M10 III doesn't. Once you put a lens on E-M10 III, its thickness will increase significantly.
Here is the back view size comparison of the FujiFilm HS20 EXR and Olympus E-M10 III.
Now lets look at the top view comparison of FujiFilm HS20 EXR and Olympus E-M10 III.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Olympus E-M10 III is significantly lighter (320g ) than the FujiFilm HS20 EXR which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on E-M10 III, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the FujiFilm FinePix HS20 EXR (FinePix HS22 EXR) 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 Bridge Cameras with Weather Sealing Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
FujiFilm HS20 EXR and Olympus E-M10 III's LCD screens have the same diagonal size of 3.00 inches.
Both cameras feature
Tilting screens where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels.