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 Sony W510 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). Sony W510 has external dimensions of 96 x 54 x 20 mm (3.78 x 2.13 x 0.79″) and weighs 119 g (0.26 lb / 4.20 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus TG-870 and the Sony W510. Sony W510 is clearly the smaller of the two cameras. Its body is 17mm narrower, 10mm shorter and 8mm thinner than Olympus TG-870.
Here is the back view size comparison of the Olympus TG-870 and Sony W510.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony W510 is significantly lighter (102g ) than the Olympus TG-870 which may become a big advantage especially on long walking trips.
Weather Sealing
Thanks to the weather-sealed body of the TG-870, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the W510.
LCD Screen Size and Features
Olympus TG-870's 3.00" LCD screen is slightly larger than Sony W510'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, Sony W510 has a fixed type screen which provides less flexibility in shooting positions compared to TG-870.