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 SX20 IS and Canon SX10 IS side-by-side from the front, back and top in their relative dimensions. Canon SX20 IS has external dimensions of 128 x 88 x 87 mm (5.04 x 3.46 x 3.43″) and weighs 600 g (1.32 lb / 21.16 oz) (including batteries). Canon SX10 IS has external dimensions of 128 x 88 x 87 mm (5.04 x 3.46 x 3.43″) and weighs 600 g (1.32 lb / 21.16 oz) (including batteries).
Below you can see the front view size comparison of Canon SX20 IS and Canon SX10 IS. In this case, we can see that Canon SX20 IS and Canon SX10 IS have the exact same height, width and thickness.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon SX20 IS and Canon SX10 IS have exactly the same weight of 600g.
Unfortunately neither Canon PowerShot SX20 IS nor Canon PowerShot SX10 IS 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 Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Canon SX20 IS and Canon SX10 IS's LCD screens has the same diagonal size of 2.5".
Both cameras feature Fully Articulating screens
where you can change the angle of the screen to make it easier to shoot from waist or over the head levels. Fully articulating screens are also useful for taking Selfie shots and video.