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-4 and Sony W310 side-by-side from the front, back and top in their relative dimensions. Olympus TG-4 has external dimensions of 112 x 66 x 31 mm (4.41 x 2.6 x 1.22″) and weighs 247 g (0.54 lb / 8.71 oz) (including batteries). Sony W310 has external dimensions of 95 x 55 x 19 mm (3.74 x 2.17 x 0.75″) and weighs 137 g (0.30 lb / 4.83 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus TG-4 and the Sony W310. Sony W310 is clearly the smaller of the two cameras. Its body is 17mm narrower, 11mm shorter and 12mm thinner than Olympus TG-4.
Here is the back view size comparison of the Olympus TG-4 and Sony W310.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony W310 is significantly lighter (110g ) than the Olympus TG-4 which may become a big advantage especially on long walking trips.
Weather Sealing
Thanks to the weather-sealed body of the TG-4, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the W310.
LCD Screen Size and Features
Olympus TG-4's 3.00" LCD screen is slightly larger than Sony W310's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.