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 Fujifilm X-A5 and Canon R3 side-by-side from the front, back and top in their relative dimensions. Fujifilm X-A5 has external dimensions of 117 x 68 x 40 mm (4.61 x 2.68 x 1.57″) and weighs 361 g (0.80 lb / 12.73 oz) (including batteries). Canon R3 has external dimensions of 150 x 143 x 87 mm (5.91 x 5.63 x 3.43″) and weighs 1015 g (2.24 lb / 35.80 oz) (including batteries).
Below you can see the front-view size comparison of the Fujifilm X-A5 and the Canon R3. Fujifilm X-A5 is clearly the smaller of the two cameras. Its body is 33mm narrower, 75mm shorter and 47mm thinner than Canon R3.
Here is the back view size comparison of the Fujifilm X-A5 and Canon R3.
Now lets look at the top view comparison of Fujifilm X-A5 and Canon R3.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Fujifilm X-A5 is significantly lighter (654g ) than the Canon R3 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 Canon R3 has a Full frame sensor and Fujifilm X-A5 has a smaller APS-C sensor, Fujifilm X-A5's lenses for a similar focal length and aperture will generally be lighter and smaller than the Canon R3 lenses.
Weather Sealing
Thanks to the weather-sealed body of the R3, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the X-A5.
LCD Screen Size and Features
Canon R3's 3.20" LCD screen is slightly larger than Fujifilm X-A5's 3" screen.