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 XG-1 and Nikon A900 side-by-side from the front, back and top in their relative dimensions. Pentax XG-1 has external dimensions of 119 x 89 x 98 mm (4.69 x 3.5 x 3.84″) and weighs 567 g (1.25 lb / 20.00 oz) (including batteries). Nikon A900 has external dimensions of 113 x 67 x 40 mm (4.45 x 2.64 x 1.57″) and weighs 289 g (0.64 lb / 10.19 oz) (including batteries).
Below you can see the front-view size comparison of the Pentax XG-1 and the Nikon A900. Nikon A900 is clearly the smaller of the two cameras. Its body is 6mm narrower, 22mm shorter and 58mm thinner than Pentax XG-1.
Comparison image of the Pentax XG-1 and the Nikon A900 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Pentax XG-1 and Nikon A900.
Comparison image of the Pentax XG-1 and the Nikon A900 Size and Weight - Back View
Now lets look at the top view comparison of Pentax XG-1 and Nikon A900.
Top View Comparison image of the Pentax XG-1 and the Nikon A900 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon A900 is significantly lighter (278g ) than the Pentax XG-1 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Pentax XG-1 nor Nikon Coolpix A900 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 XG-1 and Nikon A900's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Nikon A900 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 Pentax XG-1 has a fixed type screen which provides less flexibility in shooting positions compared to A900.