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 Leica V-Lux 4 and Canon SX40 HS side-by-side from the front, back and top in their relative dimensions. Leica V-Lux 4 has external dimensions of 125 x 87 x 110 mm (4.92 x 3.43 x 4.33″) and weighs 588 g (1.30 lb / 20.74 oz) (including batteries). Canon SX40 HS has external dimensions of 123 x 92 x 108 mm (4.84 x 3.62 x 4.25″) and weighs 600 g (1.32 lb / 21.16 oz) (including batteries).
Below you can see the front-view size comparison of the Leica V-Lux 4 and the Canon SX40 HS. Canon SX40 HS is 2mm narrower and 2mm thinner than Leica V-Lux 4 but it is also 5mm taller.
Here is the back view size comparison of the Leica V-Lux 4 and Canon SX40 HS.
Now lets look at the top view comparison of Leica V-Lux 4 and Canon SX40 HS.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Leica V-Lux 4 is 12g lighter than the Canon SX40 HS but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Leica V-Lux 4 nor Canon PowerShot SX40 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 Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Leica V-Lux 4's 3.00" LCD screen is slightly larger than Canon SX40 HS's 2.7 screen.