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-820UZ and Casio EX-10 side-by-side from the front, back and top in their relative dimensions. Olympus SP-820UZ has external dimensions of and weighs 485 g (1.07 lb / 17.11 oz) (including batteries). Casio EX-10 has external dimensions of 120 x 68 x 49 mm (4.72 x 2.67 x 1.91″) and weighs 384 g (0.85 lb / 13.55 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus SP-820UZ and the Casio EX-10. Casio EX-10 is 10mm shorter and 44mm thinner than Olympus SP-820UZ but it is also 3mm wider.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-10 is significantly lighter (101g ) than the Olympus SP-820UZ which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Olympus Stylus SP-820UZ nor Casio Exilim EX-10 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-10's 3.50" LCD screen is slightly larger than Olympus SP-820UZ's 3" screen.
In addition to the size advantage, Casio EX-10 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-820UZ has a fixed type screen which provides less flexibility in shooting positions compared to EX-10.