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 170 IS and Canon ELPH 150 IS side-by-side from the front, back and top in their relative dimensions. Canon 170 IS has external dimensions of 100 x 58 x 23 mm (3.94 x 2.28 x 0.91″) and weighs 141 g (0.31 lb / 4.97 oz) (including batteries). 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).
Below you can see the front-view size comparison of the Canon 170 IS and the Canon ELPH 150 IS. Canon ELPH 150 IS is 5mm narrower and 1mm shorter than Canon 170 IS but it is also 1mm thicker.
Comparison image of the Canon 170 IS and the Canon ELPH 150 IS Size, Weight and External Dimensions - Front View
Here is the back view size comparison of the Canon 170 IS and Canon ELPH 150 IS.
Comparison image of the Canon 170 IS and the Canon ELPH 150 IS Size and Weight - Back View
Now lets look at the top view comparison of Canon 170 IS and Canon ELPH 150 IS.
Top View Comparison image of the Canon 170 IS and the Canon ELPH 150 IS Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon 170 IS is 1g lighter than the Canon ELPH 150 IS but we don't think this will make a significant difference.
Weather Sealing
Unfortunately neither the Canon PowerShot ELPH 170 IS (IXUS 170) nor Canon PowerShot ELPH 150 IS (IXUS 155) 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 170 IS and Canon ELPH 150 IS's LCD screens have the same diagonal size of 2.70 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.
