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 Pentax WG-3 and Panasonic S2 side-by-side from the front, back and top in their relative dimensions. Pentax WG-3 has external dimensions of 124 x 64 x 33 mm (4.9 x 2.5 x 1.3″) and weighs 230 g (0.51 lb / 8.11 oz) (including batteries). Panasonic S2 has external dimensions of 98 x 57 x 21 mm (3.86 x 2.24 x 0.83″) and weighs 112 g (0.25 lb / 3.95 oz) (including batteries).
Below you can see the front-view size comparison of the Pentax WG-3 and the Panasonic S2. Panasonic S2 is clearly the smaller of the two cameras. Its body is 26mm narrower, 7mm shorter and 12mm thinner than Pentax WG-3.
Here is the back view size comparison of the Pentax WG-3 and Panasonic S2.
Now lets look at the top view comparison of Pentax WG-3 and Panasonic S2.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic S2 is significantly lighter (118g ) than the Pentax WG-3 which may become a big advantage especially on long walking trips.
Weather Sealing
Thanks to the weather-sealed body of the WG-3, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the S2.
LCD Screen Size and Features
Pentax WG-3's 3.00" LCD screen is slightly larger than Panasonic S2's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.