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 Ricoh WG-M1 and Pentax S1 side-by-side from the front, back and top in their relative dimensions. Ricoh WG-M1 has external dimensions of 66 x 43 x 89 mm (2.6 x 1.69 x 3.5″) and weighs 190 g (0.42 lb / 6.70 oz) (including batteries). Pentax S1 has external dimensions of 114 x 58 x 28 mm (4.49 x 2.28 x 1.1″) and weighs 157 g (0.35 lb / 5.54 oz) (including batteries).
Below you can see the front-view size comparison of the Ricoh WG-M1 and the Pentax S1. Ricoh WG-M1 is 48mm narrower and 15mm shorter than Pentax S1 but it is also 61mm thicker.
Here is the back view size comparison of the Ricoh WG-M1 and Pentax S1.
Now lets look at the top view comparison of Ricoh WG-M1 and Pentax S1.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax S1 is significantly lighter (33g ) than the Ricoh WG-M1 which may become a big advantage especially on long walking trips.
Weather Sealing
Thanks to the weather-sealed body of the WG-M1, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the S1.
LCD Screen Size and Features
Pentax S1's 2.70" LCD screen is slightly larger than Ricoh WG-M1's 1.5 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.