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 Samsung NX100 and Sony TX20 side-by-side from the front, back and top in their relative dimensions. Samsung NX100 has external dimensions of 120 x 71 x 35 mm (4.72 x 2.8 x 1.38″) and weighs 282 g (0.62 lb / 9.95 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 Samsung NX100 and Sony TX20. Sony TX20 is clearly the smaller of the two cameras. Its body is 24mm narrower, 15mm shorter and 17mm thinner than Samsung NX100. As you can tell, actually this is not a fair size comparison since Sony TX20 has a built-in lens but Samsung NX100 doesn't. Once you put a lens on NX100, its thickness will increase significantly.
Now lets look at the top view comparison of Samsung NX100 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 significantly lighter (149g ) than the Samsung NX100 which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on NX100, the total kit will weigh much higher.
Thanks to the weather sealed body of TX20, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to NX100.
LCD Screen Size and Features
Samsung NX100 and Sony TX20's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.