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-S7 and Olympus XZ-1 side-by-side from the front, back and top in their relative dimensions. Casio EX-S7 has external dimensions of 97 x 57 x 20 mm (3.82 x 2.24 x 0.79″) and weighs 121 g (0.27 lb / 4.27 oz) (including batteries). Olympus XZ-1 has external dimensions of 111 x 65 x 42 mm (4.37 x 2.56 x 1.65″) and weighs 275 g (0.61 lb / 9.70 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-S7 and the Olympus XZ-1. Casio EX-S7 is clearly the smaller of the two cameras. Its body is 14mm narrower, 8mm shorter and 22mm thinner than Olympus XZ-1.
Here is the back view size comparison of the Casio EX-S7 and Olympus XZ-1.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-S7 is significantly lighter (154g ) than the Olympus XZ-1 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Casio Exilim EX-S7 nor Olympus XZ-1 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
Olympus XZ-1's 3.00" LCD screen is slightly larger than Casio EX-S7's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.