Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Olympus E-M10 IV and Canon SL3 side-by-side from the front, back and top in their relative dimensions. Olympus E-M10 IV has external dimensions of 122 x 84 x 49 mm (4.8 x 3.31 x 1.93″) and weighs 383 g (0.84 lb / 13.51 oz) (including batteries). 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).
Below you can see the front view size comparison of Olympus E-M10 IV and Canon SL3. Olympus E-M10 IV has the same height with Canon SL3. On the other hand, with a width of 84mm, it is 9 narrower and also with a thickness of 49mm, it is 21mm thinner than Canon SL3.
Here is the back view size comparison of Olympus E-M10 IV and Canon SL3.
Now lets look at the top view comparison of Olympus E-M10 IV and Canon SL3.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Olympus E-M10 IV is significantly lighter (66g ) 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 have to also take into account the lenses that you will be using with these bodies. Since Canon SL3 has an APS-C sized sensor and Olympus E-M10 IV has a smaller Four Thirds sensor, Olympus E-M10 IV's lenses for a similar focal length and aperture will generally be lighter and smaller than the Canon SL3 lenses.
Unfortunately neither Olympus OM-D E-M10 IV nor Canon EOS Rebel SL3 (EOS 250D / EOS Kiss X10) provides any type of weather sealing in their body, 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 Mirrorless Cameras with Weather Sealing Top DSLR Cameras with Weather Sealing
LCD Screen Size and Features
Olympus E-M10 IV and Canon SL3's LCD screens has the same diagonal size of 3.00".
Olympus E-M10 IV features a Tilting only screen
which is mostly only good for shooting from waist or over the head levels. On the other hand, Canon SL3 sports a Fully Articulated screen
which is more flexible and useful especially for taking Selfie shots and video.