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 Nikon L31 and Canon SX40 HS side-by-side from the front, back and top in their relative dimensions. Nikon L31 has external dimensions of 96 x 59 x 29 mm (3.78 x 2.32 x 1.14″) and weighs 160 g (0.35 lb / 5.64 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 Nikon L31 and Canon SX40 HS. Nikon L31 is clearly the smaller of the two cameras. Its body is 27mm narrower, 33mm shorter and 79mm thinner than Canon SX40 HS.
Here is the back view size comparison of Nikon L31 and Canon SX40 HS.
Now lets look at the top view comparison of Nikon L31 and Canon SX40 HS.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Nikon L31 is significantly lighter (440g ) than the Canon SX40 HS which may become a big advantage especially on long walking trips.
Unfortunately neither Nikon Coolpix L31 nor Canon PowerShot SX40 HS 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 Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Nikon L31 and Canon SX40 HS's LCD screens has the same diagonal size of 2.7".
On the other hand, Canon SX40 HS sports a Fully Articulated screen
which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over the head levels, and especially very useful for shooting selfies and video. Nikon L31's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to SX40 HS.