Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Fujifilm XQ2 and Sony W320 side-by-side from the front, back and top in their relative dimensions. Fujifilm XQ2 has external dimensions of 100 x 59 x 33 mm (3.94 x 2.32 x 1.3″) and weighs 206 g (0.45 lb / 7.27 oz) (including batteries). Sony W320 has external dimensions of 93 x 52 x 17 mm (3.66 x 2.05 x 0.67″) and weighs 117 g (0.26 lb / 4.13 oz) (including batteries).
Below you can see the front view size comparison of Fujifilm XQ2 and Sony W320. Sony W320 is clearly the smaller of the two cameras. Its body is 7mm narrower, 7mm shorter and 16mm thinner than Fujifilm XQ2.
Here is the back view size comparison of Fujifilm XQ2 and Sony W320.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sony W320 is significantly lighter (89g ) than the Fujifilm XQ2 which may become a big advantage especially on long walking trips.
Unfortunately neither Fujifilm XQ2 nor Sony Cyber-shot DSC-W320 provides any type of weather sealing in their body, 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
Fujifilm XQ2's 3" LCD screen is slightly larger than Sony W320's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.