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 G9 X and Canon SX620 HS side-by-side from the front, back and top in their relative dimensions. Canon G9 X has external dimensions of 98 x 58 x 31 mm (3.86 x 2.28 x 1.21″) and weighs 209 g (0.46 lb / 7.37 oz) (including batteries). Canon SX620 HS has external dimensions of 97 x 57 x 28 mm (3.81 x 2.24 x 1.1″) and weighs 182 g (0.40 lb / 6.42 oz) (including batteries).
Below you can see the front-view size comparison of the Canon G9 X and the Canon SX620 HS. Canon SX620 HS is clearly the smaller of the two cameras. Its body is 1mm narrower, 1mm shorter and 3mm thinner than Canon G9 X.
Here is the back view size comparison of the Canon G9 X and Canon SX620 HS.
Now lets look at the top view comparison of Canon G9 X and Canon SX620 HS.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon SX620 HS is 27g lighter than the Canon G9 X but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Canon PowerShot G9 X nor Canon PowerShot SX620 HS provides any type of weather sealing in their bodies, 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 G9 X and Canon SX620 HS's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.