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 SZ8 and Panasonic LZ40 side-by-side from the front, back and top in their relative dimensions. Panasonic SZ8 has external dimensions of 100 x 60 x 27 mm (3.94 x 2.36 x 1.06″) and weighs 159 g (0.35 lb / 5.61 oz) (including batteries). Panasonic LZ40 has external dimensions of 126 x 87 x 94 mm (4.96 x 3.43 x 3.7″) and weighs 524 g (1.16 lb / 18.48 oz) (including batteries).
Below you can see the front-view size comparison of the Panasonic SZ8 and the Panasonic LZ40. Panasonic SZ8 is clearly the smaller of the two cameras. Its body is 26mm narrower, 27mm shorter and 67mm thinner than Panasonic LZ40.
Now lets look at the top view comparison of Panasonic SZ8 and Panasonic LZ40.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic SZ8 is significantly lighter (365g ) than the Panasonic LZ40 which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Panasonic Lumix DMC-SZ8 nor Panasonic Lumix DMC-LZ40 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 Compact Cameras with Weather Sealing Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Panasonic SZ8 and Panasonic LZ40's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.