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 140 IS and Sony TX66 side-by-side from the front, back and top in their relative dimensions. Canon ELPH 140 IS has external dimensions of 95 x 54 x 22 mm (3.74 x 2.13 x 0.87″) and weighs 127 g (0.28 lb / 4.48 oz) (including batteries). Sony TX66 has external dimensions of 93 x 54 x 13 mm (3.66 x 2.13 x 0.51″) and weighs 109 g (0.24 lb / 3.84 oz) (including batteries).
Below you can see the front view size comparison of Canon ELPH 140 IS and Sony TX66. Canon ELPH 140 IS has the same height with Sony TX66. On the other hand, with a width of 95mm, it is 2 wider and also with a thickness of 22mm, it is 9mm thicker than Sony TX66.
Here is the back view size comparison of Canon ELPH 140 IS and Sony TX66.
Now lets look at the top view comparison of Canon ELPH 140 IS and Sony TX66.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sony TX66 is significantly lighter (18g ) than the Canon ELPH 140 IS which may become a big advantage especially on long walking trips.
Unfortunately neither Canon PowerShot ELPH 140 IS (IXUS 150) nor Sony Cyber-shot DSC-TX66 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
Sony TX66's 3.3" LCD screen is slightly larger than Canon ELPH 140 IS's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.