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-100 and Casio EX-ZR400 side-by-side from the front, back and top in their relative dimensions. Casio EX-100 has external dimensions of 119x67x50 mm and weighs 389 g (including batteries). Casio EX-ZR400 has external dimensions of 105 x 59 x 29 mm (4.13 x 2.32 x 1.14″) and weighs 205 g (0.45 lb / 7.23 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-100 and the Casio EX-ZR400. Casio EX-ZR400 is clearly the smaller of the two cameras. Its body is 14mm narrower, 8mm shorter and 21mm thinner than Casio EX-100.
Here is the back view size comparison of the Casio EX-100 and Casio EX-ZR400.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-ZR400 is significantly lighter (184g ) than the Casio EX-100 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Casio Exilim EX-100 nor Casio Exilim EX-ZR400 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-100's 3.50" LCD screen is slightly larger than Casio EX-ZR400's 3" screen.
In addition to the size advantage, Casio EX-100 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, Casio EX-ZR400 has a fixed type screen which provides less flexibility in shooting positions compared to EX-100.