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 X100T and Olympus PEN-F side-by-side from the front, back and top in their relative dimensions. Fujifilm X100T has external dimensions of 127 x 74 x 52 mm (5 x 2.91 x 2.05″) and weighs 440 g (0.97 lb / 15.52 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 X100T and the Olympus PEN-F. Olympus PEN-F is clearly the smaller of the two cameras. Its body is 2mm narrower, 2mm shorter and 15mm thinner than Fujifilm X100T. As you can tell, actually this is not a fair size comparison since Fujifilm X100T 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 X100T and Olympus PEN-F.
Now lets look at the top view comparison of Fujifilm X100T 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 13g lighter than the Fujifilm X100T but we don't think this will make a significant difference.
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
Unfortunately neither the Fujifilm X100T nor Olympus PEN-F 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 Compact Cameras with Weather Sealing Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Fujifilm X100T and Olympus PEN-F's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Olympus PEN-F 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. Fujifilm X100T's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to PEN-F.