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 Olympus TG-870 and Pentax WG-10 side-by-side from the front, back and top in their relative dimensions. Olympus TG-870 has external dimensions of 113 x 64 x 28 mm (4.45 x 2.52 x 1.1″) and weighs 221 g (0.49 lb / 7.80 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 the Olympus TG-870 and the Pentax WG-10. Olympus TG-870 is 3mm narrower and 1mm thinner than Pentax WG-10 but it is also 5mm taller.
Here is the back view size comparison of the Olympus TG-870 and Pentax WG-10.
Now lets look at the top view comparison of Olympus TG-870 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 (54g ) than the Olympus TG-870 which may become a big advantage especially on long walking trips.
Weather Sealing
LCD Screen Size and Features
Olympus TG-870's 3.00" LCD screen is slightly larger than Pentax WG-10's 2.7" screen.
In addition to the size advantage, Olympus TG-870 LCD screen also has a
Tilting feature where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels. On the other hand, Pentax WG-10 has a fixed type screen which provides less flexibility in shooting positions compared to TG-870.