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 RX100 IV and Sony HX80 side-by-side from the front, back and top in their relative dimensions. Sony RX100 IV has external dimensions of 102 x 58 x 41 mm (4.02 x 2.28 x 1.61″) and weighs 298 g (0.66 lb / 10.51 oz) (including batteries). Sony HX80 has external dimensions of 102 x 58 x 36 mm (4.02 x 2.28 x 1.42″) and weighs 245 g (0.54 lb / 8.64 oz) (including batteries).
Below you can see the front-view size comparison of the Sony RX100 IV and the Sony HX80. Sony RX100 IV has the same height and width with Sony HX80. On the other hand, with a thickness of 41mm, it is 5mm thicker.
Here is the back view size comparison of the Sony RX100 IV and Sony HX80.
Now lets look at the top view comparison of Sony RX100 IV and Sony HX80.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony HX80 is significantly lighter (53g ) than the Sony RX100 IV which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Sony Cyber-shot DSC-RX100 IV nor Sony Cyber-shot DSC-HX80 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 RX100 IV and Sony HX80's LCD screens have the same diagonal size of 3.00 inches.
Both cameras feature
Tilting screens where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels.