Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Canon ELPH 530 HS and Pentax MX-1 side-by-side from the front, back and top in their relative dimensions. Canon ELPH 530 HS has external dimensions of 86 x 54 x 20 mm (3.39 x 2.13 x 0.79″) and weighs 163 g (0.36 lb / 5.75 oz) (including batteries). Pentax MX-1 has external dimensions of 122 x 61 x 51 mm (4.8 x 2.4 x 2.01″) and weighs 391 g (0.86 lb / 13.79 oz) (including batteries).
Below you can see the front view size comparison of Canon ELPH 530 HS and Pentax MX-1. Canon ELPH 530 HS is clearly the smaller of the two cameras. Its body is 36mm narrower, 7mm shorter and 31mm thinner than Pentax MX-1.
Here is the back view size comparison of Canon ELPH 530 HS and Pentax MX-1.
Now lets look at the top view comparison of Canon ELPH 530 HS and Pentax MX-1.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 530 HS is significantly lighter (228g ) than the Pentax MX-1 which may become a big advantage especially on long walking trips.
Unfortunately neither Canon PowerShot ELPH 530 HS (IXUS 510 HS) nor Pentax MX-1 provides any type of weather sealing in their body, 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 530 HS's 3.2" LCD screen is slightly larger than Pentax MX-1's 3" screen.
On the other hand, Pentax MX-1 LCD screen 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 530 HS has a fixed type screen which provides less flexibility in shooting positions compared to MX-1.