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-10 and Nikon S9900 side-by-side from the front, back and top in their relative dimensions. 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). Nikon S9900 has external dimensions of 112 x 66 x 40 mm (4.41 x 2.6 x 1.57″) and weighs 289 g (0.64 lb / 10.19 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-10 and the Nikon S9900. Nikon S9900 is clearly the smaller of the two cameras. Its body is 8mm narrower, 2mm shorter and 9mm thinner than Casio EX-10.
Here is the back view size comparison of the Casio EX-10 and Nikon S9900.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon S9900 is significantly lighter (95g ) than the Casio EX-10 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Casio Exilim EX-10 nor Nikon Coolpix S9900 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 Nikon S9900's 3 screen.