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 ELPH 510 HS and Canon S110 side-by-side from the front, back and top in their relative dimensions. Canon ELPH 510 HS has external dimensions of 99 x 59 x 22 mm (3.9 x 2.32 x 0.87″) and weighs 206 g (0.45 lb / 7.27 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 the Canon ELPH 510 HS and the Canon S110. Canon ELPH 510 HS has the same height and width with Canon S110. On the other hand, with a thickness of 22mm, it is 5mm thinner.
Here is the back view size comparison of the Canon ELPH 510 HS and Canon S110.
Now lets look at the top view comparison of Canon ELPH 510 HS 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 8g lighter than the Canon ELPH 510 HS but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Canon ELPH 510 HS (IXUS 1100 HS) nor Canon PowerShot S110 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 ELPH 510 HS's 3.20" LCD screen is slightly larger than Canon S110's 3" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.