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 Panasonic GX9 and Canon SX740 HS side-by-side from the front, back and top in their relative dimensions. Panasonic GX9 has external dimensions of 124 x 72 x 47 mm (4.88 x 2.83 x 1.85″) and weighs 450 g (0.99 lb / 14.36 oz) (including batteries). Canon SX740 HS has external dimensions of 110 x 64 x 40 mm (4.33 x 2.52 x 1.57″) and weighs 299 g (0.66 lb / 10.55 oz) (including batteries).
Below you can see the front-view size comparison of the Panasonic GX9 and the Canon SX740 HS. Canon SX740 HS is clearly the smaller of the two cameras. Its body is 14mm narrower, 8mm shorter and 7mm thinner than Panasonic GX9. As you can tell, actually this is not a fair size comparison since Canon SX740 HS has a built-in lens but Panasonic GX9 doesn't. Once you put a lens on GX9, its thickness will increase significantly.
Here is the back view size comparison of the Panasonic GX9 and Canon SX740 HS.
Now lets look at the top view comparison of Panasonic GX9 and Canon SX740 HS.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon SX740 HS is significantly lighter (151g ) than the Panasonic GX9 which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on GX9, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Panasonic Lumix DC-GX9 nor Canon PowerShot SX740 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 Mirrorless Cameras with Weather Sealing Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Panasonic GX9 and Canon SX740 HS's LCD screens have the same diagonal size of 3.00 inches.
Both cameras feature
Tilting screens where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels.