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-S200 and Canon 600D side-by-side from the front, back and top in their relative dimensions. Casio EX-S200 has external dimensions of 100 x 55 x 18 mm (3.94 x 2.17 x 0.71″) and weighs 132 g (0.29 lb / 4.66 oz) (including batteries). Canon 600D has external dimensions of 133 x 100 x 80 mm (5.24 x 3.94 x 3.15″) and weighs 570 g (1.26 lb / 20.11 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-S200 and the Canon 600D. Casio EX-S200 is clearly the smaller of the two cameras. Its body is 33mm narrower, 45mm shorter and 62mm thinner than Canon 600D. As you can tell, actually this is not a fair size comparison since Casio EX-S200 has a built-in lens but Canon 600D doesn't. Once you put a lens on 600D, its thickness will increase significantly.
Here is the back view size comparison of the Casio EX-S200 and Canon 600D.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-S200 is significantly lighter (438g ) than the Canon 600D which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on 600D, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Casio Exilim EX-S200 nor Canon EOS 600D (EOS Rebel T3i / EOS Kiss X5) 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 Top DSLR Cameras with Weather Sealing
LCD Screen Size and Features
Canon 600D's 3.00" LCD screen is slightly larger than Casio EX-S200's 2.7 screen.
Moreover, Canon 600D 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. On the other hand, Casio EX-S200 has a fixed type screen which provides almost no flexibility in shooting positions compared to 600D.