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 ELPH 150 IS and Canon A2300 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). Canon A2300 has external dimensions of 95 x 54 x 20 mm (3.74 x 2.13 x 0.79″) and weighs 125 g (0.28 lb / 4.41 oz) (including batteries).
Below you can see the front view size comparison of Canon ELPH 150 IS and Canon A2300.
Here is the back view size comparison of Canon ELPH 150 IS and Canon A2300.
Now lets look at the top view comparison of Canon ELPH 150 IS and Canon A2300.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon A2300 is 17g lighter than the Canon ELPH 150 IS but we don't think this will make a significant difference.
Unfortunately neither Canon PowerShot ELPH 150 IS (IXUS 155) nor Canon PowerShot A2300 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 ELPH 150 IS and Canon A2300's LCD screens has the same diagonal size of 2.70".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.