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 HX400V and Sony HX100V side-by-side from the front, back and top in their relative dimensions. Sony HX400V has external dimensions of 130 x 93 x 103 mm (5.1 x 3.67 x 4.06″) and weighs 660 g (1.46 lb / 23.28 oz) (including batteries). Sony HX100V has external dimensions of 122 x 87 x 93 mm (4.8 x 3.43 x 3.66″) and weighs 577 g (1.27 lb / 20.35 oz) (including batteries).
Below you can see the front-view size comparison of the Sony HX400V and the Sony HX100V. Sony HX100V is clearly the smaller of the two cameras. Its body is 8mm narrower, 6mm shorter and 10mm thinner than Sony HX400V.
Here is the back view size comparison of the Sony HX400V and Sony HX100V.
Now lets look at the top view comparison of Sony HX400V and Sony HX100V.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony HX100V is 83g lighter than the Sony HX400V but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Sony Cyber-shot DSC-HX400V nor Sony Cyber-shot DSC-HX100V 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 Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Sony HX400V and Sony HX100V'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.