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 ELPH 150 IS and Sony W690 side-by-side from the front, back and top in their relative dimensions. Canon ELPH 150 IS has external dimensions of 95 x 57 x 24 mm (3.74 x 2.24 x 0.94″) and weighs 142 g (0.31 lb / 5.01 oz) (including batteries). Sony W690 has external dimensions of 94 x 56 x 22 mm (3.7 x 2.2 x 0.87″) and weighs 142 g (0.31 lb / 5.01 oz) (including batteries).
Below you can see the front-view size comparison of the Canon ELPH 150 IS and the Sony W690. Sony W690 is clearly the smaller of the two cameras. Its body is 1mm narrower, 1mm shorter and 2mm thinner than Canon ELPH 150 IS.
Here is the back view size comparison of the Canon ELPH 150 IS and Sony W690.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 150 IS and Sony W690 have exactly the same weight of 142g.
Weather Sealing
Unfortunately neither the Canon PowerShot ELPH 150 IS (IXUS 155) nor Sony Cyber-shot DSC-W690 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
Sony W690's 3.00" LCD screen is slightly larger than Canon ELPH 150 IS's 2.7 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.