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 Canon A2400 IS and Panasonic ZS8 side-by-side from the front, back and top in their relative dimensions. Canon A2400 IS has external dimensions of 94 x 54 x 20 mm (3.7 x 2.13 x 0.79″) and weighs 126 g (0.28 lb / 4.44 oz) (including batteries). Panasonic ZS8 has external dimensions of 105 x 58 x 33 mm (4.13 x 2.28 x 1.3″) and weighs 210 g (0.46 lb / 7.41 oz) (including batteries).
Below you can see the front view size comparison of Canon A2400 IS and Panasonic ZS8. Canon A2400 IS is clearly the smaller of the two cameras. Its body is 11mm narrower, 4mm shorter and 13mm thinner than Panasonic ZS8.
Here is the back view size comparison of Canon A2400 IS and Panasonic ZS8.
Now lets look at the top view comparison of Canon A2400 IS and Panasonic ZS8.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon A2400 IS is significantly lighter (84g ) than the Panasonic ZS8 which may become a big advantage especially on long walking trips.
Unfortunately neither Canon PowerShot A2400 IS nor Panasonic Lumix DMC-ZS8 (Lumix DMC-TZ18) 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
LCD Screen Size and Features
Panasonic ZS8's 3" LCD screen is slightly larger than Canon A2400 IS's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.