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-100 and Olympus SH-3 side-by-side from the front, back and top in their relative dimensions. Casio EX-100 has external dimensions of 119x67x50 mm and weighs 389 g (including batteries). Olympus SH-3 has external dimensions of 109 x 63 x 42 mm (4.29 x 2.48 x 1.65″) and weighs 271 g (0.60 lb / 9.56 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-100 and the Olympus SH-3. Olympus SH-3 is clearly the smaller of the two cameras. Its body is 10mm narrower, 4mm shorter and 8mm thinner than Casio EX-100.
Here is the back view size comparison of the Casio EX-100 and Olympus SH-3.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Olympus SH-3 is significantly lighter (118g ) than the Casio EX-100 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Casio Exilim EX-100 nor Olympus Stylus SH-3 provides any type of weather sealing in their bodies, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Casio EX-100's 3.50" LCD screen is slightly larger than Olympus SH-3's 3 screen.
In addition to the size advantage, Casio EX-100 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, Olympus SH-3 has a fixed type screen which provides less flexibility in shooting positions compared to EX-100.