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 Pentax X90 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). Pentax X90 has external dimensions of 111 x 85 x 110 mm (4.37 x 3.35 x 4.33″) and weighs 428 g (0.94 lb / 15.10 oz) (including batteries).
Below you can see the front-view size comparison of the Pentax X-5 and the Pentax X90. Pentax X90 is 8mm narrower and 1mm shorter than Pentax X-5 but it is also 3mm thicker.
Now lets look at the top view comparison of Pentax X-5 and Pentax X90.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax X90 is significantly lighter (167g ) 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 Pentax X90 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
LCD Screen Size and Features
Pentax X-5's 3.00" LCD screen is slightly larger than Pentax X90'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, Pentax X90 has a fixed type screen which provides less flexibility in shooting positions compared to X-5.