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-3 and Casio EX-H15 side-by-side from the front, back and top in their relative dimensions. Olympus TG-3 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). Casio EX-H15 has external dimensions of 101 x 60 x 28 mm (3.98 x 2.36 x 1.1″) and weighs 161 g (0.35 lb / 5.68 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus TG-3 and the Casio EX-H15. Casio EX-H15 is clearly the smaller of the two cameras. Its body is 11mm narrower, 6mm shorter and 3mm thinner than Olympus TG-3.
Here is the back view size comparison of the Olympus TG-3 and Casio EX-H15.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-H15 is significantly lighter (86g ) than the Olympus TG-3 which may become a big advantage especially on long walking trips.
Weather Sealing
Thanks to the weather-sealed body of the TG-3, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the EX-H15.
LCD Screen Size and Features
Olympus TG-3 and Casio EX-H15'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.