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-600 UZ and Casio EX-ZR800 side-by-side from the front, back and top in their relative dimensions. Olympus SP-600 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-ZR800 has external dimensions of 108 x 60 x 31 mm (4.25 x 2.36 x 1.22″) and weighs 222 g (0.49 lb / 7.83 oz) (including batteries).
Below you can see the front-view size comparison of the Olympus SP-600 UZ and the Casio EX-ZR800. Casio EX-ZR800 is clearly the smaller of the two cameras. Its body is 2mm narrower, 30mm shorter and 60mm thinner than Olympus SP-600 UZ.
Here is the back view size comparison of the Olympus SP-600 UZ and Casio EX-ZR800.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-ZR800 is significantly lighter (233g ) than the Olympus SP-600 UZ which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Olympus SP-600 UZ nor Casio Exilim EX-ZR800 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-ZR800's 3.00" LCD screen is slightly larger than Olympus SP-600 UZ's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.