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 Casio EX-ZR15 and Olympus TG-4 side-by-side from the front, back and top in their relative dimensions. Casio EX-ZR15 has external dimensions of 102 x 59 x 27 mm (4.02 x 2.32 x 1.06″) and weighs 176 g (0.39 lb / 6.21 oz) (including batteries). 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).
Below you can see the front-view size comparison of the Casio EX-ZR15 and the Olympus TG-4. Casio EX-ZR15 is clearly the smaller of the two cameras. Its body is 10mm narrower, 7mm shorter and 4mm thinner than Olympus TG-4.
Here is the back view size comparison of the Casio EX-ZR15 and Olympus TG-4.
Now lets look at the top view comparison of Casio EX-ZR15 and Olympus TG-4.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-ZR15 is significantly lighter (71g ) 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 EX-ZR15.
LCD Screen Size and Features
Casio EX-ZR15 and Olympus TG-4'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.