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 Pentax X-5 and Sony W550 side-by-side from the front, back and top in their relative dimensions. 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). Sony W550 has external dimensions of 94 x 56 x 19 mm (3.7 x 2.2 x 0.75″) and weighs 110 g (0.24 lb / 3.88 oz) (including batteries).
Below you can see the front-view size comparison of the Pentax X-5 and the Sony W550. Sony W550 is clearly the smaller of the two cameras. Its body is 25mm narrower, 30mm shorter and 88mm thinner than Pentax X-5.
Now lets look at the top view comparison of Pentax X-5 and Sony W550.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony W550 is significantly lighter (485g ) than the Pentax X-5 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Pentax X-5 nor Sony Cyber-shot DSC-W550 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 Bridge Cameras with Weather Sealing Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Pentax X-5 and Sony W550's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Pentax X-5 features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels whereas the Sony W550 has a fixed type screen which provides less flexibility in shooting positions compared to X-5.