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 350 HS and Pentax RZ18 side-by-side from the front, back and top in their relative dimensions. Canon ELPH 350 HS has external dimensions of 100 x 58 x 23 mm (3.94 x 2.28 x 0.91″) and weighs 147 g (0.32 lb / 5.19 oz) (including batteries). Pentax RZ18 has external dimensions of 97 x 61 x 33 mm (3.82 x 2.4 x 1.3″) and weighs 178 g (0.39 lb / 6.28 oz) (including batteries).
Below you can see the front-view size comparison of the Canon ELPH 350 HS and the Pentax RZ18. Canon ELPH 350 HS is 3mm shorter and 10mm thinner than Pentax RZ18 but it is also 3mm wider.
Here is the back view size comparison of the Canon ELPH 350 HS and Pentax RZ18.
Now lets look at the top view comparison of Canon ELPH 350 HS and Pentax RZ18.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 350 HS is significantly lighter (31g ) than the Pentax RZ18 which may become a big advantage especially on long walking trips.
Weather Sealing
Thanks to the weather-sealed body of the RZ18, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the 350 HS.
LCD Screen Size and Features
Canon ELPH 350 HS and Pentax RZ18's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.