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 HX9V and Sony RX100 III side-by-side from the front, back and top in their relative dimensions. Sony HX9V has external dimensions of 105 x 59 x 34 mm (4.13 x 2.32 x 1.34″) and weighs 245 g (0.54 lb / 8.64 oz) (including batteries). Sony RX100 III has external dimensions of 102 x 58 x 41 mm (4.02 x 2.28 x 1.61″) and weighs 290 g (0.64 lb / 10.23 oz) (including batteries).
Below you can see the front-view size comparison of the Sony HX9V and the Sony RX100 III. Sony RX100 III is 3mm narrower and 1mm shorter than Sony HX9V but it is also 7mm thicker.
Now lets look at the top view comparison of Sony HX9V and Sony RX100 III.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony HX9V is significantly lighter (45g ) than the Sony RX100 III which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Sony Cyber-shot DSC-HX9V nor Sony Cyber-shot DSC-RX100 III 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 HX9V and Sony RX100 III's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Sony RX100 III 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 HX9V has a fixed type screen which provides less flexibility in shooting positions compared to RX100 III.