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 Nikon S9100 and Pentax WG-10 side-by-side from the front, back and top in their relative dimensions. Nikon S9100 has external dimensions of 105 x 62 x 35 mm (4.13 x 2.44 x 1.38″) and weighs 214 g (0.47 lb / 7.55 oz) (including batteries). Pentax WG-10 has external dimensions of and weighs 167 g (including batteries).
Below you can see the front view size comparison of Nikon S9100 and Pentax WG-10. Pentax WG-10 is 3mm shorter and 6mm thinner than Nikon S9100 but it is also 11mm wider.
Here is the back view size comparison of Nikon S9100 and Pentax WG-10.
Now lets look at the top view comparison of Nikon S9100 and Pentax WG-10.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Pentax WG-10 is significantly lighter (47g ) than the Nikon S9100 which may become a big advantage especially on long walking trips.
LCD Screen Size and Features
Nikon S9100's 3" LCD screen is slightly larger than Pentax WG-10's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.