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-2 GPS and Nikon P7800 side-by-side from the front, back and top in their relative dimensions. Pentax WG-2 GPS has external dimensions of 122 x 61 x 30 mm (4.8 x 2.4 x 1.18″) and weighs 198 g (0.44 lb / 6.98 oz) (including batteries). Nikon P7800 has external dimensions of 119 x 78 x 50 mm (4.69 x 3.07 x 1.97″) and weighs 399 g (0.88 lb / 14.07 oz) (including batteries).
Below you can see the front-view size comparison of the Pentax WG-2 GPS and the Nikon P7800. Pentax WG-2 GPS is 17mm shorter and 20mm thinner than Nikon P7800 but it is also 3mm wider.
Here is the back view size comparison of the Pentax WG-2 GPS and Nikon P7800.
Now lets look at the top view comparison of Pentax WG-2 GPS and Nikon P7800.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax WG-2 GPS is significantly lighter (201g ) than the Nikon P7800 which may become a big advantage especially on long walking trips.
Thanks to the weather-sealed body of the WG-2 GPS, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the P7800.
LCD Screen Size and Features
Pentax WG-2 GPS and Nikon P7800's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Nikon P7800 sports a Fully Articulated screen
which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over-the-head levels, and especially very useful for shooting selfies and video. Pentax WG-2 GPS's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to P7800.