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 Canon G5 X and Canon G7 X MIII side-by-side from the front, back and top in their relative dimensions. Canon G5 X has external dimensions of 112 x 76 x 44 mm (4.41 x 2.99 x 1.73″) and weighs 353 g (0.78 lb / 12.45 oz) (including batteries). Canon G7 X MIII has external dimensions of 105 x 61 x 41 mm (4.13 x 2.4 x 1.61″) and weighs 304 g (0.67 lb / 10.72 oz) (including batteries).
Below you can see the front view size comparison of Canon G5 X and Canon G7 X MIII. Canon G7 X MIII is clearly the smaller of the two cameras. Its body is 7mm narrower, 15mm shorter and 3mm thinner than Canon G5 X.
Here is the back view size comparison of Canon G5 X and Canon G7 X MIII.
Now lets look at the top view comparison of Canon G5 X and Canon G7 X MIII.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon G7 X MIII is significantly lighter (49g ) than the Canon G5 X which may become a big advantage especially on long walking trips.
Unfortunately neither Canon PowerShot G5 X nor Canon PowerShot G7 X Mark III 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 Compact Cameras with Weather Sealing
LCD Screen Size and Features
Canon G5 X and Canon G7 X MIII's LCD screens has the same diagonal size of 3".
Canon G7 X MIII features a Tilting only screen
which is mostly only good for shooting from waist or over the head levels. On the other hand, Canon G5 X sports a Fully Articulated screen
which is more flexible and useful especially for taking Selfie shots and video.