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 SX620 HS and Casio EX-ZR400 side-by-side from the front, back and top in their relative dimensions. Canon SX620 HS has external dimensions of 97 x 57 x 28 mm (3.81 x 2.24 x 1.1″) and weighs 182 g (0.40 lb / 6.42 oz) (including batteries). Casio EX-ZR400 has external dimensions of 105 x 59 x 29 mm (4.13 x 2.32 x 1.14″) and weighs 205 g (0.45 lb / 7.23 oz) (including batteries).
Below you can see the front-view size comparison of the Canon SX620 HS and the Casio EX-ZR400. Canon SX620 HS is clearly the smaller of the two cameras. Its body is 8mm narrower, 2mm shorter and 1mm thinner than Casio EX-ZR400.
Here is the back view size comparison of the Canon SX620 HS and Casio EX-ZR400.
Now lets look at the top view comparison of Canon SX620 HS and Casio EX-ZR400.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon SX620 HS is 23g lighter than the Casio EX-ZR400 but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Canon PowerShot SX620 HS nor Casio Exilim EX-ZR400 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 SX620 HS and Casio EX-ZR400'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.