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-H20G and Olympus VR-320 side-by-side from the front, back and top in their relative dimensions. Casio EX-H20G has external dimensions of 103 x 68 x 29 mm (4.06 x 2.68 x 1.14″) and weighs 216 g (0.48 lb / 7.62 oz) (including batteries). Olympus VR-320 has external dimensions of 101 x 58 x 29 mm (3.98 x 2.28 x 1.14″) and weighs 158 g (0.35 lb / 5.57 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-H20G and the Olympus VR-320. Olympus VR-320 is 2mm narrower and 10mm shorter than Casio EX-H20G but they have the same thickness of 29mm.
Here is the back view size comparison of the Casio EX-H20G and Olympus VR-320.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Olympus VR-320 is significantly lighter (58g ) than the Casio EX-H20G which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Casio Exilim EX-H20G nor Olympus VR-320 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-H20G and Olympus VR-320'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.