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 135 and Pentax Efina side-by-side from the front, back and top in their relative dimensions. Canon ELPH 135 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). Pentax Efina has external dimensions of 87 x 54 x 21 mm (3.43 x 2.13 x 0.83″) and weighs 91 g (0.20 lb / 3.21 oz) (including batteries).
Below you can see the front-view size comparison of the Canon ELPH 135 and the Pentax Efina. Canon ELPH 135 has the same height with Pentax Efina. On the other hand, with a width of 95mm, it is 8 wider and also with a thickness of 22mm, it is 1mm thicker than Pentax Efina.
Here is the back view size comparison of the Canon ELPH 135 and Pentax Efina.
Now lets look at the top view comparison of Canon ELPH 135 and Pentax Efina.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax Efina is significantly lighter (36g ) than the Canon ELPH 135 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon PowerShot ELPH 135 (IXUS 145) nor Pentax Efina 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 135's 2.70" LCD screen is slightly larger than Pentax Efina's 2.5" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.