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 TX20 and Olympus E-M10 III side-by-side from the front, back and top in their relative dimensions. 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). Olympus E-M10 III has external dimensions of 122 x 84 x 50 mm (4.8 x 3.31 x 1.97″) and weighs 410 g (0.90 lb / 14.46 oz) (including batteries).
Below you can see the front-view size comparison of the Sony TX20 and the Olympus E-M10 III. Sony TX20 is clearly the smaller of the two cameras. Its body is 26mm narrower, 28mm shorter and 32mm thinner than Olympus E-M10 III. As you can tell, actually this is not a fair size comparison since Sony TX20 has a built-in lens but Olympus E-M10 III doesn't. Once you put a lens on E-M10 III, its thickness will increase significantly.
Here is the back view size comparison of the Sony TX20 and Olympus E-M10 III.
Now lets look at the top view comparison of Sony TX20 and Olympus E-M10 III.
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 (277g ) than the Olympus E-M10 III 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 E-M10 III, the total kit will weigh much higher.
Weather Sealing
With its weather-sealed body, we believe that the TX20 has a big advantage over the E-M10 III which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Sony TX20 and Olympus E-M10 III's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Olympus E-M10 III features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels whereas the Sony TX20 has a fixed type screen which provides less flexibility in shooting positions compared to E-M10 III.