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 Sony TX100V and Sony TX20 side-by-side from the front, back and top in their relative dimensions. Sony TX100V has external dimensions of 97 x 59 x 18 mm (3.82 x 2.32 x 0.71″) and weighs 147 g (0.32 lb / 5.19 oz) (including batteries). Sony TX20 has external dimensions of 96 x 56 x 18 mm (3.78 x 2.2 x 0.71″) and weighs 133 g (0.29 lb / 4.69 oz) (including batteries).
Below you can see the front-view size comparison of the Sony TX100V and the Sony TX20. Sony TX20 is 1mm narrower and 3mm shorter than Sony TX100V but they have the same thickness of 18mm.
Here is the back view size comparison of the Sony TX100V and Sony TX20.
Now lets look at the top view comparison of Sony TX100V and Sony TX20.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony TX20 is 14g lighter than the Sony TX100V but we don't think this will make a significant difference.
Weather Sealing
Thanks to the weather-sealed body of the TX20, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the TX100V.
LCD Screen Size and Features
Sony TX100V's 3.50" LCD screen is slightly larger than Sony TX20's 3" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.