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 II and Panasonic ZS300 side-by-side from the front, back and top in their relative dimensions. 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). Panasonic ZS300 has external dimensions of 111 x 66 x 45 mm (4.37 x 2.6 x 1.77″) and weighs 337 g (0.74 lb / 11.89 oz) (including batteries).
Below you can see the front-view size comparison of the Canon G9 X II and the Panasonic ZS300. Canon G9 X II is clearly the smaller of the two cameras. Its body is 13mm narrower, 8mm shorter and 14mm thinner than Panasonic ZS300.
Comparison image of the Canon G9 X II and the Panasonic ZS300 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Canon G9 X II and Panasonic ZS300.
Comparison image of the Canon G9 X II and the Panasonic ZS300 Size and Weight - Back View
Now lets look at the top view comparison of Canon G9 X II and Panasonic ZS300.
Top View Comparison image of the Canon G9 X II and the Panasonic ZS300 Size
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 significantly lighter (131g ) than the Panasonic ZS300 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon PowerShot G9 X Mark II nor Panasonic Lumix DC-ZS300 (Lumix DC-TZ300) 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 II and Panasonic ZS300'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.