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 W320 and Sony W610 side-by-side from the front, back and top in their relative dimensions. 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). Sony W610 has external dimensions of 93 x 52 x 19 mm (3.66 x 2.05 x 0.75″) and weighs 113 g (0.25 lb / 3.99 oz) (including batteries).
Below you can see the front-view size comparison of the Sony W320 and the Sony W610. Sony W320 has the same height and width with Sony W610. On the other hand, with a thickness of 17mm, it is 2mm thinner.
Comparison image of the Sony W320 and the Sony W610 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Sony W320 and Sony W610.
Comparison image of the Sony W320 and the Sony W610 Size and Weight - Back View
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony W610 is 4g lighter than the Sony W320 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Sony Cyber-shot DSC-W320 nor Sony Cyber-shot DSC-W610 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 W320 and Sony W610'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.