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 SZ-31MR iHS and Canon G9 X II side-by-side from the front, back and top in their relative dimensions. Olympus SZ-31MR iHS has external dimensions of 106 x 69 x 40 mm (4.17 x 2.72 x 1.57″) and weighs 226 g (0.50 lb / 7.97 oz) (including batteries). Canon G9 X II has external dimensions of 98 x 58 x 31 mm (3.86 x 2.28 x 1.22″) and weighs 206 g (0.45 lb / 7.27 oz) (including batteries).
Below you can see the front view size comparison of Olympus SZ-31MR iHS and Canon G9 X II. Canon G9 X II is clearly the smaller of the two cameras. Its body is 8mm narrower, 11mm shorter and 9mm thinner than Olympus SZ-31MR iHS.
Now lets look at the top view comparison of Olympus SZ-31MR iHS and Canon G9 X II.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon G9 X II is 20g lighter than the Olympus SZ-31MR iHS but we don't think this will make a significant difference.
Unfortunately neither Olympus SZ-31MR iHS nor Canon PowerShot G9 X Mark II 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
Olympus SZ-31MR iHS and Canon G9 X II's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.