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 V and Sony H400 side-by-side from the front, back and top in their relative dimensions. Sony RX100 V has external dimensions of 102 x 58 x 41 mm (4.02 x 2.28 x 1.61″) and weighs 299 g (0.66 lb / 10.55 oz) (including batteries). Sony H400 has external dimensions of 130 x 95 x 122 mm (5.1 x 3.74 x 4.81″) and weighs 628 g (1.38 lb / 22.15 oz) (including batteries).
Below you can see the front-view size comparison of the Sony RX100 V and the Sony H400. Sony RX100 V is clearly the smaller of the two cameras. Its body is 28mm narrower, 37mm shorter and 81mm thinner than Sony H400.
Here is the back view size comparison of the Sony RX100 V and Sony H400.
Now lets look at the top view comparison of Sony RX100 V and Sony H400.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony RX100 V is significantly lighter (329g ) than the Sony H400 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Sony Cyber-shot DSC-RX100 V nor Sony Cyber-shot DSC-H400 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 Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Sony RX100 V and Sony H400's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Sony RX100 V 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 H400 has a fixed type screen which provides less flexibility in shooting positions compared to RX100 V.