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 FX90 and Canon SX20 IS side-by-side from the front, back and top in their relative dimensions. Panasonic FX90 has external dimensions of 102 x 56 x 22 mm (4.02 x 2.2 x 0.87″) and weighs 149 g (0.33 lb / 5.26 oz) (including batteries). 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).
Below you can see the front-view size comparison of the Panasonic FX90 and the Canon SX20 IS. Panasonic FX90 is clearly the smaller of the two cameras. Its body is 26mm narrower, 32mm shorter and 65mm thinner than Canon SX20 IS.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Panasonic FX90 is significantly lighter (451g ) than the Canon SX20 IS which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Panasonic Lumix DMC-FX90 nor Canon PowerShot SX20 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 Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Panasonic FX90's 3.00" LCD screen is slightly larger than Canon SX20 IS's 2.5" screen.