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 Olympus SP-800 UZ 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). Olympus SP-800 UZ has external dimensions of 110 x 90 x 91 mm (4.33 x 3.54 x 3.58″) and weighs 455 g (1.00 lb / 16.05 oz) (including batteries).
Below you can see the front-view size comparison of the Pentax WG-3 and the Olympus SP-800 UZ. Pentax WG-3 is 26mm shorter and 58mm thinner than Olympus SP-800 UZ but it is also 14mm wider.
Here is the back view size comparison of the Pentax WG-3 and Olympus SP-800 UZ.
Now lets look at the top view comparison of Pentax WG-3 and Olympus SP-800 UZ.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax WG-3 is significantly lighter (225g ) than the Olympus SP-800 UZ 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 SP-800 UZ.
LCD Screen Size and Features
Pentax WG-3 and Olympus SP-800 UZ'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.