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-ZR300 and Canon ELPH 510 HS side-by-side from the front, back and top in their relative dimensions. Casio EX-ZR300 has external dimensions of 105 x 59 x 29 mm (4.13 x 2.32 x 1.14″) and weighs 205 g (0.45 lb / 7.23 oz) (including batteries). 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).
Below you can see the front-view size comparison of the Casio EX-ZR300 and the Canon ELPH 510 HS. Casio EX-ZR300 has the same height with Canon ELPH 510 HS. On the other hand, with a width of 105mm, it is 6 wider and also with a thickness of 29mm, it is 7mm thicker than Canon ELPH 510 HS.
Here is the back view size comparison of the Casio EX-ZR300 and Canon ELPH 510 HS.
Now lets look at the top view comparison of Casio EX-ZR300 and Canon ELPH 510 HS.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-ZR300 is 1g lighter than the Canon ELPH 510 HS but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Casio Exilim EX-ZR300 nor Canon ELPH 510 HS (IXUS 1100 HS) 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 Casio EX-ZR300's 3 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.