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 Canon SL3 and Nikon D3500 side-by-side from the front, back and top in their relative dimensions. Canon SL3 has external dimensions of 122 x 93 x 70 mm (4.8 x 3.66 x 2.76″) and weighs 449 g (0.99 lb / 15.84 oz) (including batteries). Nikon D3500 has external dimensions of 124 x 97 x 70 mm (4.88 x 3.82 x 2.76″) and weighs 365 g (0.80 lb / 12.87 oz) (including batteries).
Below you can see the front-view size comparison of the Canon SL3 and the Nikon D3500.
Here is the back view size comparison of the Canon SL3 and Nikon D3500.
Now lets look at the top view comparison of Canon SL3 and Nikon D3500.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon D3500 is significantly lighter (84g ) than the Canon SL3 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 Canon SL3 and Nikon D3500 have the same APS-C sized sensor, their lenses for a similar focal length and aperture will be similar in size and weight.
Weather Sealing
Unfortunately neither the Canon EOS Rebel SL3 (EOS 250D / EOS Kiss X10) nor Nikon D3500 provides any type of weather sealing in their bodies, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top DSLR Cameras with Weather Sealing
LCD Screen Size and Features
Canon SL3 and Nikon D3500's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Canon SL3 sports a
Fully Articulated screen which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over-the-head levels, and especially very useful for shooting selfies and video. Nikon D3500's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to SL3.