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 Nikon S100 and Ricoh WG-20 side-by-side from the front, back and top in their relative dimensions. Nikon S100 has external dimensions of 99 x 65 x 18 mm (3.9 x 2.56 x 0.71″) and weighs 175 g (0.39 lb / 6.17 oz) (including batteries). Ricoh WG-20 has external dimensions of 114 x 58 x 28 mm (4.49 x 2.28 x 1.1″) and weighs 164 g (0.36 lb / 5.78 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon S100 and the Ricoh WG-20. Nikon S100 is 15mm narrower and 10mm thinner than Ricoh WG-20 but it is also 7mm taller.
Here is the back view size comparison of the Nikon S100 and Ricoh WG-20.
Now lets look at the top view comparison of Nikon S100 and Ricoh WG-20.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Ricoh WG-20 is 11g lighter than the Nikon S100 but we don't think this will make a significant difference.
Weather Sealing
Thanks to the weather-sealed body of the WG-20, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the S100.
LCD Screen Size and Features
Nikon S100's 3.50" LCD screen is slightly larger than Ricoh WG-20's 2.7 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.