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 SX410 IS and Pentax VS20 side-by-side from the front, back and top in their relative dimensions. Canon SX410 IS has external dimensions of 104 x 69 x 85 mm (4.09 x 2.72 x 3.35″) and weighs 325 g (0.72 lb / 11.46 oz) (including batteries). Pentax VS20 has external dimensions of 111 x 61 x 38 mm (4.37 x 2.4 x 1.5″) and weighs 235 g (0.52 lb / 8.29 oz) (including batteries).
Below you can see the front-view size comparison of the Canon SX410 IS and the Pentax VS20. Pentax VS20 is 8mm shorter and 47mm thinner than Canon SX410 IS but it is also 7mm wider.
Here is the back view size comparison of the Canon SX410 IS and Pentax VS20.
Now lets look at the top view comparison of Canon SX410 IS and Pentax VS20.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax VS20 is significantly lighter (90g ) than the Canon SX410 IS which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon PowerShot SX410 IS nor Pentax Optio VS20 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 SX410 IS and Pentax VS20'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.