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 Canon A2400 IS and Canon A3300 IS 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). Canon A3300 IS has external dimensions of 95 x 57 x 24 mm (3.74 x 2.24 x 0.94″) and weighs 149 g (0.33 lb / 5.26 oz) (including batteries).
Below you can see the front-view size comparison of the Canon A2400 IS and the Canon A3300 IS. Canon A2400 IS is clearly the smaller of the two cameras. Its body is 1mm narrower, 3mm shorter and 4mm thinner than Canon A3300 IS.
Here is the back view size comparison of the Canon A2400 IS and Canon A3300 IS.
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 (23g ) than the Canon A3300 IS which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon PowerShot A2400 IS nor Canon PowerShot A3300 IS 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
LCD Screen Size and Features
Canon A3300 IS's 3.00" 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.