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-Z90 and Olympus XZ-10 side-by-side from the front, back and top in their relative dimensions. Casio EX-Z90 has external dimensions of 90 x 52 x 19 mm (3.54 x 2.05 x 0.75″) and weighs 121 g (0.27 lb / 4.27 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-Z90 and Olympus XZ-10. Casio EX-Z90 is clearly the smaller of the two cameras. Its body is 12mm narrower, 9mm shorter and 15mm thinner than Olympus XZ-10.
Here is the back view size comparison of Casio EX-Z90 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-Z90 is significantly lighter (100g ) than the Olympus XZ-10 which may become a big advantage especially on long walking trips.
Unfortunately neither Casio Exilim EX-Z90 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
Olympus XZ-10's 3" LCD screen is slightly larger than Casio EX-Z90's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.