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 SX120 IS and Canon N100 side-by-side from the front, back and top in their relative dimensions. Canon SX120 IS has external dimensions of 111 x 71 x 45 mm (4.37 x 2.8 x 1.77″) and weighs 285 g (0.63 lb / 10.05 oz) (including batteries). Canon N100 has external dimensions of 105 x 68 x 36 mm (4.13 x 2.68 x 1.42″) and weighs 289 g (0.64 lb / 10.19 oz) (including batteries).
Below you can see the front view size comparison of Canon SX120 IS and Canon N100. Canon N100 is clearly the smaller of the two cameras. Its body is 6mm narrower, 3mm shorter and 9mm thinner than Canon SX120 IS.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon SX120 IS is 4g lighter than the Canon N100 but we don't think this will make a significant difference.
Unfortunately neither Canon PowerShot SX120 IS nor Canon PowerShot N100 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 SX120 IS and Canon N100's LCD screens has the same diagonal size of 3".
On the other hand, Canon N100 features a Tilting screen
where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Canon SX120 IS has a fixed type screen which provides less flexibility in shooting positions compared to N100.