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 150 IS and Pentax X-5 side-by-side from the front, back and top in their relative dimensions. Canon ELPH 150 IS has external dimensions of 95 x 57 x 24 mm (3.74 x 2.24 x 0.94″) and weighs 142 g (0.31 lb / 5.01 oz) (including batteries). Pentax X-5 has external dimensions of 119 x 86 x 107 mm (4.69 x 3.39 x 4.21″) and weighs 595 g (1.31 lb / 20.99 oz) (including batteries).
Below you can see the front-view size comparison of the Canon ELPH 150 IS and the Pentax X-5. Canon ELPH 150 IS is clearly the smaller of the two cameras. Its body is 24mm narrower, 29mm shorter and 83mm thinner than Pentax X-5.
Now lets look at the top view comparison of Canon ELPH 150 IS and Pentax X-5.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 150 IS is significantly lighter (453g ) than the Pentax X-5 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon PowerShot ELPH 150 IS (IXUS 155) nor Pentax X-5 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 Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Pentax X-5's 3.00" LCD screen is slightly larger than Canon ELPH 150 IS's 2.7 screen.
In addition to the size advantage, Pentax X-5 LCD screen also has a
Tilting feature where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels. On the other hand, Canon ELPH 150 IS has a fixed type screen which provides less flexibility in shooting positions compared to X-5.