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 G3 X 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 G3 X has external dimensions of 123 x 77 x 105 mm (4.84 x 3.03 x 4.13″) and weighs 733 g (1.62 lb / 25.86 oz) (including batteries).
Below you can see the front view size comparison of Olympus E-M10 IV and Canon G3 X. Olympus E-M10 IV is 1mm narrower and 56mm thinner than Canon G3 X but it is also 7mm taller. As you can tell, actually this is not a fair size comparison since Canon G3 X has a built-in lens but Olympus E-M10 IV doesn't. Once you put a lens on E-M10 IV, its thickness will increase significantly.
Here is the back view size comparison of Olympus E-M10 IV and Canon G3 X.
Now lets look at the top view comparison of Olympus E-M10 IV and Canon G3 X.
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 (350g ) than the Canon G3 X which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on E-M10 IV, the total kit will weigh much higher.
Thanks to the weather sealed body of G3 X, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to E-M10 IV.
LCD Screen Size and Features
Canon G3 X's 3.2" LCD screen is slightly larger than Olympus E-M10 IV's 3" screen.