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 SX160 IS and Canon ELPH 190 IS side-by-side from the front, back and top in their relative dimensions. Canon SX160 IS has external dimensions of 111 x 73 x 44 mm (4.37 x 2.87 x 1.73″) and weighs 291 g (0.64 lb / 10.26 oz) (including batteries). Canon ELPH 190 IS has external dimensions of 95 x 57 x 24 mm (3.74 x 2.24 x 0.94″) and weighs 138 g (0.30 lb / 4.87 oz) (including batteries).
Below you can see the front-view size comparison of the Canon SX160 IS and the Canon ELPH 190 IS. Canon ELPH 190 IS is clearly the smaller of the two cameras. Its body is 16mm narrower, 16mm shorter and 20mm thinner than Canon SX160 IS.
Here is the back view size comparison of the Canon SX160 IS and Canon ELPH 190 IS.
Now lets look at the top view comparison of Canon SX160 IS and Canon ELPH 190 IS.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 190 IS is significantly lighter (153g ) than the Canon SX160 IS which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither the Canon PowerShot SX160 IS nor Canon PowerShot ELPH 190 IS 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 SX160 IS's 3.00" LCD screen is slightly larger than Canon ELPH 190 IS's 2.7 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.