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 Olympus E-M5 III and Samsung ST700 side-by-side from the front, back and top in their relative dimensions. Olympus E-M5 III has external dimensions of 125 x 85 x 50 mm (4.92 x 3.35 x 1.97″) and weighs 414 g (0.91 lb / 14.60 oz) (including batteries). Samsung ST700 has external dimensions of 99 x 55 x 20 mm (3.9 x 2.17 x 0.79″) and weighs (including batteries).
Below you can see the front-view size comparison of the Olympus E-M5 III and the Samsung ST700. Samsung ST700 is clearly the smaller of the two cameras. Its body is 26mm narrower, 30mm shorter and 30mm thinner than Olympus E-M5 III. As you can tell, actually this is not a fair size comparison since Samsung ST700 has a built-in lens but Olympus E-M5 III doesn't. Once you put a lens on E-M5 Mark III, its thickness will increase significantly.
Here is the back view size comparison of the Olympus E-M5 III and Samsung ST700.
Now lets look at the top view comparison of Olympus E-M5 III and Samsung ST700.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Samsung ST700 is 414g lighter than the Olympus E-M5 III but we don't think this will make a significant difference.
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-M5 Mark III, the total kit will weigh much higher.
Weather Sealing
With its weather-sealed body, we believe that the E-M5 Mark III has a big advantage over the ST700 which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Olympus E-M5 III and Samsung ST700's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Olympus E-M5 III sports a
Fully Articulated screen which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over-the-head levels, and especially very useful for shooting selfies and video. Samsung ST700's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to E-M5 Mark III.