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 GoPro Hero9 Black and Sony HX400V side-by-side from the front, back and top in their relative dimensions. GoPro Hero9 Black has external dimensions of 71 x 55 x 34 mm (2.8 x 2.17 x 1.34″) and weighs 158 g (0.35 lb / 5.57 oz) (including batteries). 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).
Below you can see the front-view size comparison of the GoPro Hero9 Black and the Sony HX400V. GoPro Hero9 Black is clearly the smaller of the two cameras. Its body is 59mm narrower, 38mm shorter and 69mm thinner than Sony HX400V.
Here is the back view size comparison of the GoPro Hero9 Black and Sony HX400V.
Now lets look at the top view comparison of GoPro Hero9 Black and Sony HX400V.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
GoPro Hero9 Black is significantly lighter (502g ) than the Sony HX400V which may become a big advantage especially on long walking trips.
Weather Sealing
With its weather-sealed body, we believe that the Hero9 Black has a big advantage over the HX400V which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Sony HX400V's 3.00" LCD screen is slightly larger than GoPro Hero9 Black's 2.27″ screen.
In addition to the size advantage, Sony HX400V LCD screen also has a
Tilting feature where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels. On the other hand, GoPro Hero9 Black has a fixed type screen which provides less flexibility in shooting positions compared to HX400V.