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 Hero11 Black and GoPro Hero9 Black side-by-side from the front, back and top in their relative dimensions. GoPro Hero11 Black has external dimensions of 71 x 55 x 34 mm (2.8 x 2.17 x 1.34″) and weighs 127 g (including batteries). 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).
Below you can see the front-view size comparison of the GoPro Hero11 Black and the GoPro Hero9 Black. In this case, we can see that GoPro Hero11 Black and GoPro Hero9 Black have the exact same height, width and thickness.
Here is the back view size comparison of the GoPro Hero11 Black and GoPro Hero9 Black.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
GoPro Hero11 Black is significantly lighter (31g ) than the GoPro Hero9 Black which may become a big advantage especially on long walking trips.
Weather Sealing
LCD Screen Size and Features
GoPro Hero11 Black and GoPro Hero9 Black's LCD screens have the same diagonal size of 2.27 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.