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-G1 and Canon SD780 IS side-by-side from the front, back and top in their relative dimensions. Casio EX-G1 has external dimensions of 104 x 64 x 20 mm (4.09 x 2.52 x 0.79″) and weighs 154 g (0.34 lb / 5.43 oz) (including batteries). Canon SD780 IS has external dimensions of 87 x 56 x 18 mm (3.43 x 2.2 x 0.71″) and weighs 155 g (0.34 lb / 5.47 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-G1 and the Canon SD780 IS. Canon SD780 IS is clearly the smaller of the two cameras. Its body is 17mm narrower, 8mm shorter and 2mm thinner than Casio EX-G1.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-G1 is 1g lighter than the Canon SD780 IS but we don't think this will make a significant difference.
Weather Sealing
Thanks to the weather-sealed body of the EX-G1, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the SD780 IS.
LCD Screen Size and Features
Casio EX-G1 and Canon SD780 IS's LCD screens have the same diagonal size of 2.50 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.