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 Nikon S1100pj and Casio EX-Z450 side-by-side from the front, back and top in their relative dimensions. Nikon S1100pj has external dimensions of 101 x 68 x 24 mm (3.98 x 2.68 x 0.94″) and weighs 180 g (0.40 lb / 6.35 oz) (including batteries). Casio EX-Z450 has external dimensions of 81 x 56 x 21 mm (3.19 x 2.2 x 0.83″) and weighs 128 g (0.28 lb / 4.52 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon S1100pj and the Casio EX-Z450. Casio EX-Z450 is clearly the smaller of the two cameras. Its body is 20mm narrower, 12mm shorter and 3mm thinner than Nikon S1100pj.
Here is the back view size comparison of the Nikon S1100pj and Casio EX-Z450.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-Z450 is significantly lighter (52g ) than the Nikon S1100pj which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Nikon Coolpix S1100pj nor Casio Exilim EX-Z450 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
Nikon S1100pj and Casio EX-Z450's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.