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 Sony H400 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 H400 has external dimensions of 130 x 95 x 122 mm (5.1 x 3.74 x 4.81″) and weighs 628 g (1.38 lb / 22.15 oz) (including batteries).
Below you can see the front view size comparison of Canon ELPH 150 IS and Sony H400. Canon ELPH 150 IS is clearly the smaller of the two cameras. Its body is 35mm narrower, 38mm shorter and 98mm thinner than Sony H400.
Here is the back view size comparison of Canon ELPH 150 IS and Sony H400.
Now lets look at the top view comparison of Canon ELPH 150 IS and Sony H400.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 150 IS is significantly lighter (486g ) than the Sony H400 which may become a big advantage especially on long walking trips.
Unfortunately neither Canon PowerShot ELPH 150 IS (IXUS 155) nor Sony Cyber-shot DSC-H400 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 Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Sony H400'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.