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 Canon SX20 IS and Casio EX-G1 side-by-side from the front, back and top in their relative dimensions. Canon SX20 IS has external dimensions of 128 x 88 x 87 mm (5.04 x 3.46 x 3.43″) and weighs 600 g (1.32 lb / 21.16 oz) (including batteries). 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).
Below you can see the front view size comparison of Canon SX20 IS and Casio EX-G1. Casio EX-G1 is clearly the smaller of the two cameras. Its body is 24mm narrower, 24mm shorter and 67mm thinner than Canon SX20 IS.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Casio EX-G1 is significantly lighter (446g ) than the Canon SX20 IS which may become a big advantage especially on long walking trips.
LCD Screen Size and Features
Canon SX20 IS and Casio EX-G1's LCD screens has the same diagonal size of 2.5".
On the other hand, Canon SX20 IS sports a Fully Articulated screen
which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over the head levels, and especially very useful for shooting selfies and video. Casio EX-G1's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to SX20 IS.