Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Fujifilm X100F and Ricoh GR III side-by-side from the front, back and top in their relative dimensions. Fujifilm X100F has external dimensions of 127 x 75 x 52 mm (5 x 2.95 x 2.05″) and weighs 469 g (1.03 lb / 16.54 oz) (including batteries). Ricoh GR III has external dimensions of 109 x 62 x 33 mm (4.29 x 2.44 x 1.3″) and weighs 257 g (0.57 lb / 9.07 oz) (including batteries).
Below you can see the front view size comparison of Fujifilm X100F and Ricoh GR III. Ricoh GR III is clearly the smaller of the two cameras. Its body is 18mm narrower, 13mm shorter and 19mm thinner than Fujifilm X100F.
Here is the back view size comparison of Fujifilm X100F and Ricoh GR III.
Now lets look at the top view comparison of Fujifilm X100F and Ricoh GR III.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Ricoh GR III is significantly lighter (212g ) than the Fujifilm X100F which may become a big advantage especially on long walking trips.
Unfortunately neither Fujifilm X100F nor Ricoh GR III provides any type of weather sealing in their body, 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
LCD Screen Size and Features
Fujifilm X100F and Ricoh GR III's LCD screens has the same diagonal size of 3.00".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.