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 G9 X and Panasonic FH25 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). Panasonic FH25 has external dimensions of 99 x 57 x 28 mm (3.9 x 2.24 x 1.1″) and weighs 159 g (0.35 lb / 5.61 oz) (including batteries).
Below you can see the front view size comparison of Canon G9 X and Panasonic FH25. Panasonic FH25 is 1mm shorter and 3mm thinner than Canon G9 X but it is also 1mm wider.
Here is the back view size comparison of Canon G9 X and Panasonic FH25.
Now lets look at the top view comparison of Canon G9 X and Panasonic FH25.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic FH25 is significantly lighter (50g ) than the Canon G9 X which may become a big advantage especially on long walking trips.
Unfortunately neither Canon PowerShot G9 X nor Panasonic Lumix DMC-FH25 (Lumix DMC-FS35) 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 G9 X's 3" LCD screen is slightly larger than Panasonic FH25's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.