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 SP-800 UZ and Casio EX-100 side-by-side from the front, back and top in their relative dimensions. Olympus SP-800 UZ has external dimensions of 110 x 90 x 91 mm (4.33 x 3.54 x 3.58″) and weighs 455 g (1.00 lb / 16.05 oz) (including batteries). Casio EX-100 has external dimensions of 119x67x50 mm and weighs 389 g (including batteries).
Below you can see the front-view size comparison of the Olympus SP-800 UZ and the Casio EX-100. Casio EX-100 is 23mm shorter and 41mm thinner than Olympus SP-800 UZ but it is also 9mm wider.
Here is the back view size comparison of the Olympus SP-800 UZ and Casio EX-100.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-100 is significantly lighter (66g ) than the Olympus SP-800 UZ which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Olympus SP-800 UZ nor Casio Exilim EX-100 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 SP-800 UZ'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 SP-800 UZ has a fixed type screen which provides less flexibility in shooting positions compared to EX-100.