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 S1 and Olympus PEN-F side-by-side from the front, back and top in their relative dimensions. Fujifilm S1 has external dimensions of 133 x 91 x 110 mm (5.24 x 3.58 x 4.33″) and weighs 680 g (1.50 lb / 23.99 oz) (including batteries). Olympus PEN-F has external dimensions of 125 x 72 x 37 mm (4.92 x 2.83 x 1.46″) and weighs 427 g (0.94 lb / 15.06 oz) (including batteries).
Below you can see the front-view size comparison of the Fujifilm S1 and the Olympus PEN-F. Olympus PEN-F is clearly the smaller of the two cameras. Its body is 8mm narrower, 19mm shorter and 73mm thinner than Fujifilm S1. As you can tell, actually this is not a fair size comparison since Fujifilm S1 has a built-in lens but Olympus PEN-F doesn't. Once you put a lens on PEN-F, its thickness will increase significantly.
Here is the back view size comparison of the Fujifilm S1 and Olympus PEN-F.
Now lets look at the top view comparison of Fujifilm S1 and Olympus PEN-F.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Olympus PEN-F is significantly lighter (253g ) than the Fujifilm S1 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 PEN-F, the total kit will weigh much higher.
Weather Sealing
With its weather-sealed body, we believe that the S1 has a big advantage over the PEN-F which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Fujifilm S1 and Olympus PEN-F'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.