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 FZ150 and Canon SX40 HS side-by-side from the front, back and top in their relative dimensions. Panasonic FZ150 has external dimensions of 124 x 82 x 92 mm (4.88 x 3.23 x 3.62″) and weighs 528 g (1.16 lb / 18.62 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 Panasonic FZ150 and the Canon SX40 HS. Panasonic FZ150 is 10mm shorter and 16mm thinner than Canon SX40 HS but it is also 1mm wider.
Comparison image of the Panasonic FZ150 and the Canon SX40 HS Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Panasonic FZ150 and Canon SX40 HS.
Comparison image of the Panasonic FZ150 and the Canon SX40 HS Size and Weight - Back View
Now lets look at the top view comparison of Panasonic FZ150 and Canon SX40 HS.
Top View Comparison image of the Panasonic FZ150 and the Canon SX40 HS Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic FZ150 is 72g lighter than the Canon SX40 HS but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Panasonic Lumix DMC-FZ150 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
Panasonic FZ150's 3.00" LCD screen is slightly larger than Canon SX40 HS's 2.7 screen.