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 SX230 HS and Canon S100 side-by-side from the front, back and top in their relative dimensions. Canon SX230 HS has external dimensions of 106 x 62 x 33 mm (4.17 x 2.44 x 1.3″) and weighs 223 g (0.49 lb / 7.87 oz) (including batteries). Canon S100 has external dimensions of 99 x 60 x 28 mm (3.9 x 2.36 x 1.1″) and weighs 198 g (0.44 lb / 6.98 oz) (including batteries).
Below you can see the front-view size comparison of the Canon SX230 HS and the Canon S100. Canon S100 is clearly the smaller of the two cameras. Its body is 7mm narrower, 2mm shorter and 5mm thinner than Canon SX230 HS.
Here is the back view size comparison of the Canon SX230 HS and Canon S100.
Now lets look at the top view comparison of Canon SX230 HS and Canon S100.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon S100 is 25g lighter than the Canon SX230 HS but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Canon PowerShot SX230 HS nor Canon PowerShot S100 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 SX230 HS and Canon S100'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.