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-S12 and Fujifilm F800EXR side-by-side from the front, back and top in their relative dimensions. Casio EX-S12 has external dimensions of 95 x 60 x 23 mm (3.74 x 2.36 x 0.91″) and weighs 111 g (0.24 lb / 3.92 oz) (including batteries). Fujifilm F800EXR has external dimensions of 105 x 63 x 36 mm (4.13 x 2.48 x 1.42″) and weighs 232 g (0.51 lb / 8.18 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-S12 and the Fujifilm F800EXR. Casio EX-S12 is clearly the smaller of the two cameras. Its body is 10mm narrower, 3mm shorter and 13mm thinner than Fujifilm F800EXR.
Here is the back view size comparison of the Casio EX-S12 and Fujifilm F800EXR.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-S12 is significantly lighter (121g ) than the Fujifilm F800EXR which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Casio Exilim EX-S12 nor Fujifilm FinePix F800EXR 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
Fujifilm F800EXR's 3.00" LCD screen is slightly larger than Casio EX-S12's 2.7 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.