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 180 and Canon ELPH 140 IS side-by-side from the front, back and top in their relative dimensions. Canon ELPH 180 has external dimensions of 95 x 54 x 22 mm (3.74 x 2.13 x 0.87″) and weighs 126 g (0.28 lb / 4.44 oz) (including batteries). Canon ELPH 140 IS has external dimensions of 95 x 54 x 22 mm (3.74 x 2.13 x 0.87″) and weighs 127 g (0.28 lb / 4.48 oz) (including batteries).
Below you can see the front-view size comparison of the Canon ELPH 180 and the Canon ELPH 140 IS. In this case, we can see that Canon ELPH 180 and Canon ELPH 140 IS have the exact same height, width and thickness.
Here is the back view size comparison of the Canon ELPH 180 and Canon ELPH 140 IS.
Now lets look at the top view comparison of Canon ELPH 180 and Canon ELPH 140 IS.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 180 is 1g lighter than the Canon ELPH 140 IS but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Canon PowerShot ELPH 180 nor Canon PowerShot ELPH 140 IS (IXUS 150) 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 180 and Canon ELPH 140 IS's LCD screens have the same diagonal size of 2.70 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.