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 X70 and Pentax X90 side-by-side from the front, back and top in their relative dimensions. Pentax X70 has external dimensions of 110 x 83 x 90 mm (4.33 x 3.27 x 3.54″) and weighs 410 g (0.90 lb / 14.46 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 X70 and the Pentax X90. Pentax X70 is clearly the smaller of the two cameras. Its body is 1mm narrower, 2mm shorter and 20mm thinner than Pentax X90.
Comparison image of the Pentax X70 and the Pentax X90 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Pentax X70 and Pentax X90.
Comparison image of the Pentax X70 and the Pentax X90 Size and Weight - Back View
Now lets look at the top view comparison of Pentax X70 and Pentax X90.
Top View Comparison image of the Pentax X70 and the Pentax X90 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Pentax X70 is 18g lighter than the Pentax X90 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Pentax X70 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 X70 and Pentax X90's LCD screens have the same diagonal size of 2.70 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.