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 S6100 and Pentax WG-3 side-by-side from the front, back and top in their relative dimensions. Nikon S6100 has external dimensions of 98 x 58 x 27 mm (3.86 x 2.28 x 1.06″) and weighs 175 g (0.39 lb / 6.17 oz) (including batteries). 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).
Below you can see the front-view size comparison of the Nikon S6100 and the Pentax WG-3. Nikon S6100 is clearly the smaller of the two cameras. Its body is 26mm narrower, 6mm shorter and 6mm thinner than Pentax WG-3.
Here is the back view size comparison of the Nikon S6100 and Pentax WG-3.
Now lets look at the top view comparison of Nikon S6100 and Pentax WG-3.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon S6100 is significantly lighter (55g ) 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 S6100.
LCD Screen Size and Features
Nikon S6100 and Pentax WG-3's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.