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 Canon A2100 IS and Canon S200 side-by-side from the front, back and top in their relative dimensions. Canon A2100 IS has external dimensions of 102 x 64 x 32 mm (4.02 x 2.52 x 1.26″) and weighs 185 g (0.41 lb / 6.53 oz) (including batteries). Canon S200 has external dimensions of 100 x 59 x 26 mm (3.94 x 2.32 x 1.02″) and weighs 181 g (0.40 lb / 6.38 oz) (including batteries).
Below you can see the front-view size comparison of the Canon A2100 IS and the Canon S200. Canon S200 is clearly the smaller of the two cameras. Its body is 2mm narrower, 5mm shorter and 6mm thinner than Canon A2100 IS.
Here is the back view size comparison of the Canon A2100 IS and Canon S200.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon S200 is 4g lighter than the Canon A2100 IS but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Canon PowerShot A2100 IS nor Canon PowerShot S200 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
Canon A2100 IS and Canon S200'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.