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 Sony WX9 and Sony NEX-3 side-by-side from the front, back and top in their relative dimensions. Sony WX9 has external dimensions of 95 x 56 x 20 mm (3.74 x 2.2 x 0.79″) and weighs (including batteries). Sony NEX-3 has external dimensions of 117 x 62 x 33 mm (4.61 x 2.44 x 1.3″) and weighs 297 g (0.65 lb / 10.48 oz) (including batteries).
Below you can see the front-view size comparison of the Sony WX9 and the Sony NEX-3. Sony WX9 is clearly the smaller of the two cameras. Its body is 22mm narrower, 6mm shorter and 13mm thinner than Sony NEX-3. As you can tell, actually this is not a fair size comparison since Sony WX9 has a built-in lens but Sony NEX-3 doesn't. Once you put a lens on NEX-3, its thickness will increase significantly.
Now lets look at the top view comparison of Sony WX9 and Sony NEX-3.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony WX9 is 297g lighter than the Sony NEX-3 but we don't think this will make a significant difference.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on NEX-3, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Sony Cyber-shot DSC-WX9 nor Sony Alpha NEX-3 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 Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Sony WX9 and Sony NEX-3's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Sony NEX-3 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 WX9 has a fixed type screen which provides less flexibility in shooting positions compared to NEX-3.