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 G1 X III and Canon 6D MII side-by-side from the front, back and top in their relative dimensions. Canon G1 X III has external dimensions of 115 x 78 x 51 mm (4.53 x 3.07 x 2.01″) and weighs 399 g (0.88 lb / 14.07 oz) (including batteries). Canon 6D MII has external dimensions of 144 x 111 x 75 mm (5.67 x 4.37 x 2.95″) and weighs 765 g (1.69 lb / 26.98 oz) (including batteries).
Below you can see the front-view size comparison of the Canon G1 X III and the Canon 6D MII. Canon G1 X III is clearly the smaller of the two cameras. Its body is 29mm narrower, 33mm shorter and 24mm thinner than Canon 6D MII. As you can tell, actually this is not a fair size comparison since Canon G1 X III has a built-in lens but Canon 6D MII doesn't. Once you put a lens on 6D MII, its thickness will increase significantly.
Here is the back view size comparison of the Canon G1 X III and Canon 6D MII.
Now lets look at the top view comparison of Canon G1 X III and Canon 6D MII.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon G1 X III is significantly lighter (366g ) than the Canon 6D MII 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 6D MII, the total kit will weigh much higher.
Weather Sealing
Both the G1 X III and the 6D MII have weather sealings in their bodies, making them resistant to water and dust.
LCD Screen Size and Features
Canon G1 X III and Canon 6D MII's LCD screens have the same diagonal size of 3.00 inches.
Both cameras feature
Fully Articulating screens where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels. Fully articulating screens are also useful for taking Selfies and video.