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 Nikon L31 and Sony WX9 side-by-side from the front, back and top in their relative dimensions. Nikon L31 has external dimensions of 96 x 59 x 29 mm (3.78 x 2.32 x 1.14″) and weighs 160 g (0.35 lb / 5.64 oz) (including batteries). Sony WX9 has external dimensions of 95 x 56 x 20 mm (3.74 x 2.2 x 0.79″) and weighs (including batteries).
Below you can see the front-view size comparison of the Nikon L31 and the Sony WX9. Sony WX9 is clearly the smaller of the two cameras. Its body is 1mm narrower, 3mm shorter and 9mm thinner than Nikon L31.
Comparison image of the Nikon L31 and the Sony WX9 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Nikon L31 and Sony WX9.
Comparison image of the Nikon L31 and the Sony WX9 Size and Weight - Back View
Now lets look at the top view comparison of Nikon L31 and Sony WX9.
Top View Comparison image of the Nikon L31 and the the Sony WX9 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony WX9 is 160g lighter than the Nikon L31 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Nikon Coolpix L31 nor Sony Cyber-shot DSC-WX9 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
Sony WX9's 3.00" LCD screen is slightly larger than Nikon L31's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.