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 G12 and Fujifilm X20 side-by-side from the front, back and top in their relative dimensions. Canon G12 has external dimensions of 112 x 76 x 48 mm (4.41 x 2.99 x 1.89″) and weighs 401 g (0.88 lb / 14.14 oz) (including batteries). Fujifilm X20 has external dimensions of 117 x 70 x 57 mm (4.61 x 2.76 x 2.24″) and weighs 353 g (0.78 lb / 12.45 oz) (including batteries).
Below you can see the front view size comparison of Canon G12 and Fujifilm X20. Canon G12 is 5mm narrower and 9mm thinner than Fujifilm X20 but it is also 6mm taller.
Here is the back view size comparison of Canon G12 and Fujifilm X20.
Now lets look at the top view comparison of Canon G12 and Fujifilm X20.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Fujifilm X20 is 48g lighter than the Canon G12 but we don't think this will make a significant difference.
Unfortunately neither Canon PowerShot G12 nor Fujifilm X20 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
Canon G12 and Fujifilm X20's LCD screens has the same diagonal size of 2.8".
On the other hand, Canon G12 sports a Fully Articulated screen
which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over the head levels, and especially very useful for shooting selfies and video. Fujifilm X20's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to G12.