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 S120 and Canon S110 side-by-side from the front, back and top in their relative dimensions. Canon S120 has external dimensions of 100 x 59 x 29 mm (3.94 x 2.32 x 1.14″) and weighs 217 g (0.48 lb / 7.65 oz) (including batteries). Canon S110 has external dimensions of 99 x 59 x 27 mm (3.9 x 2.32 x 1.06″) and weighs 198 g (0.44 lb / 6.98 oz) (including batteries).
Below you can see the front view size comparison of Canon S120 and Canon S110. Canon S120 has the same height with Canon S110. On the other hand, with a width of 100mm, it is 1 wider and also with a thickness of 29mm, it is 2mm thicker than Canon S110.
Here is the back view size comparison of Canon S120 and Canon S110.
Now lets look at the top view comparison of Canon S120 and Canon S110.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon S110 is 19g lighter than the Canon S120 but we don't think this will make a significant difference.
Unfortunately neither Canon PowerShot S120 nor Canon PowerShot S110 provides any type of weather sealing in their body, 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 S120 and Canon S110's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.