Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Casio EX-ZR400 and Olympus XZ-10 side-by-side from the front, back and top in their relative dimensions. 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). Olympus XZ-10 has external dimensions of 102 x 61 x 34 mm (4.03 x 2.41 x 1.35″) and weighs 221 g (0.49 lb / 7.80 oz) (including batteries).
Below you can see the front view size comparison of Casio EX-ZR400 and Olympus XZ-10. Casio EX-ZR400 is 2mm shorter and 5mm thinner than Olympus XZ-10 but it is also 3mm wider.
Here is the back view size comparison of Casio EX-ZR400 and Olympus XZ-10.
Now lets look at the top view comparison of Casio EX-ZR400 and Olympus XZ-10.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Casio EX-ZR400 is 16g lighter than the Olympus XZ-10 but we don't think this will make a significant difference.
Unfortunately neither Casio Exilim EX-ZR400 nor Olympus Stylus XZ-10 provides any type of weather sealing in their body, 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-ZR400 and Olympus XZ-10's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.