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 330 HS and Olympus E-PL5 side-by-side from the front, back and top in their relative dimensions. Canon ELPH 330 HS has external dimensions of 97 x 56 x 23 mm (3.82 x 2.2 x 0.91″) and weighs 144 g (0.32 lb / 5.08 oz) (including batteries). Olympus E-PL5 has external dimensions of 111 x 64 x 38 mm (4.37 x 2.52 x 1.5″) and weighs 325 g (0.72 lb / 11.46 oz) (including batteries).
Below you can see the front-view size comparison of the Canon ELPH 330 HS and the Olympus E-PL5. Canon ELPH 330 HS is clearly the smaller of the two cameras. Its body is 14mm narrower, 8mm shorter and 15mm thinner than Olympus E-PL5. As you can tell, actually this is not a fair size comparison since Canon ELPH 330 HS has a built-in lens but Olympus E-PL5 doesn't. Once you put a lens on E-PL5, its thickness will increase significantly.
Here is the back view size comparison of the Canon ELPH 330 HS and Olympus E-PL5.
Now lets look at the top view comparison of Canon ELPH 330 HS and Olympus E-PL5.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 330 HS is significantly lighter (181g ) than the Olympus E-PL5 which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on E-PL5, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Canon PowerShot ELPH 330 HS (IXUS 255 HS) nor Olympus PEN E-PL5 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 Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Canon ELPH 330 HS and Olympus E-PL5's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Olympus E-PL5 features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels whereas the Canon ELPH 330 HS has a fixed type screen which provides less flexibility in shooting positions compared to E-PL5.