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 Nikon Z6 III and Sony A9 side-by-side from the front, back and top in their relative dimensions. Nikon Z6 III has external dimensions of 139 x 102 x 74 mm (5.47 x 4.02 x 2.91″) and weighs 760 g (1.68 lb / 26.81 oz) (including batteries). Sony A9 has external dimensions of 127 x 96 x 63 mm (5 x 3.78 x 2.48″) and weighs 673 g (1.48 lb / 23.74 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon Z6 III and the Sony A9. Sony A9 is clearly the smaller of the two cameras. Its body is 12mm narrower, 6mm shorter and 11mm thinner than Nikon Z6 III.
Comparison image of the Nikon Z6 III and the Sony A9 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Nikon Z6 III and Sony A9.
Comparison image of the Nikon Z6 III and the Sony A9 Size and Weight - Back View
Now lets look at the top view comparison of Nikon Z6 III and Sony A9.
Top View Comparison image of the Nikon Z6 III and the Sony A9 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony A9 is 87g lighter than the Nikon Z6 III but we don't think this will make a significant difference.
Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you also have to take into account the lenses that you will be using with these bodies. Since both Nikon Z6 III and Sony A9 have the same Full frame sized sensor, their lenses for a similar focal length and aperture will be similar in size and weight.
Weather Sealing
Both the Z6 Mark III and the A9 have weather sealings in their bodies, making them resistant to water and dust.
LCD Screen Size and Features
Nikon Z6 III's 3.20" LCD screen is slightly larger than Sony A9's 3 screen.
