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 A1400 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 A1400 has external dimensions of 95 x 62 x 30 mm (3.74 x 2.44 x 1.18″) and weighs 174 g (0.38 lb / 6.14 oz) (including batteries).
Below you can see the front-view size comparison of the Canon SX160 IS and the Canon A1400. Canon A1400 is clearly the smaller of the two cameras. Its body is 16mm narrower, 11mm shorter and 14mm thinner than Canon SX160 IS.
Here is the back view size comparison of the Canon SX160 IS and Canon A1400.
Now lets look at the top view comparison of Canon SX160 IS and Canon A1400.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon A1400 is significantly lighter (117g ) 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 A1400 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 A1400's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.