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 Canon R8 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). Canon R8 has external dimensions of 133 x 86 x 70 mm (5.24 x 3.39 x 2.76″) and weighs 461 g (1.02 lb / 16.26 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon Z6 III and the Canon R8. Canon R8 is clearly the smaller of the two cameras. Its body is 6mm narrower, 16mm shorter and 4mm thinner than Nikon Z6 III.
Comparison image of the Nikon Z6 III and the Canon R8 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Nikon Z6 III and Canon R8.
Comparison image of the Nikon Z6 III and the Canon R8 Size and Weight - Back View
Now lets look at the top view comparison of Nikon Z6 III and Canon R8.
Top View Comparison image of the Nikon Z6 III and the Canon R8 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon R8 is significantly lighter (299g ) than the Nikon Z6 III which may become a big advantage especially on long walking trips.
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 Canon R8 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 R8 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 Canon R8's 3.0″ screen.