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 QX10 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 QX10 has external dimensions of 62 x 62 x 33 mm (2.46 x 2.43 x 1.31″) and weighs 105 g (0.23 lb / 3.70 oz) (including batteries).
Below you can see the front-view size comparison of the Canon ELPH 150 IS and the Sony QX10. Canon ELPH 150 IS is 5mm shorter and 9mm thinner than Sony QX10 but it is also 33mm wider.
Here is the back view size comparison of the Canon ELPH 150 IS and Sony QX10.
Now lets look at the top view comparison of Canon ELPH 150 IS and Sony QX10.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony QX10 is significantly lighter (37g ) than the Canon ELPH 150 IS which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon PowerShot ELPH 150 IS (IXUS 155) nor Sony Cyber-shot DSC-QX10 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
Canon ELPH 150 IS's 2.70" LCD screen is slightly larger than Sony QX10's screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.