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 HX7V and Sony W730 side-by-side from the front, back and top in their relative dimensions. Sony HX7V has external dimensions of 102 x 58 x 29 mm (4.02 x 2.28 x 1.14″) and weighs 208 g (0.46 lb / 7.34 oz) (including batteries). Sony W730 has external dimensions of 93 x 52 x 22 mm (3.66 x 2.05 x 0.87″) and weighs 122 g (0.27 lb / 4.30 oz) (including batteries).
Below you can see the front-view size comparison of the Sony HX7V and the Sony W730. Sony W730 is clearly the smaller of the two cameras. Its body is 9mm narrower, 6mm shorter and 7mm thinner than Sony HX7V.
Here is the back view size comparison of the Sony HX7V and Sony W730.
Now lets look at the top view comparison of Sony HX7V and Sony W730.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony W730 is significantly lighter (86g ) than the Sony HX7V which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Sony Cyber-shot DSC-HX7V nor Sony Cyber-shot DSC-W730 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 HX7V's 3.00" LCD screen is slightly larger than Sony W730's 2.7 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.