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 HX10V and Olympus E-M1 side-by-side from the front, back and top in their relative dimensions. Sony HX10V has external dimensions of 105 x 60 x 34 mm (4.13 x 2.36 x 1.34″) and weighs 234 g (0.52 lb / 8.25 oz) (including batteries). Olympus E-M1 has external dimensions of 130 x 94 x 63 mm (5.13 x 3.68 x 2.48″) and weighs 497 g (1.10 lb / 17.53 oz) (including batteries).
Below you can see the front-view size comparison of the Sony HX10V and the Olympus E-M1. Sony HX10V is clearly the smaller of the two cameras. Its body is 25mm narrower, 34mm shorter and 29mm thinner than Olympus E-M1. As you can tell, actually this is not a fair size comparison since Sony HX10V has a built-in lens but Olympus E-M1 doesn't. Once you put a lens on E-M1, its thickness will increase significantly.
Here is the back view size comparison of the Sony HX10V and Olympus E-M1.
Now lets look at the top view comparison of Sony HX10V and Olympus E-M1.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony HX10V is significantly lighter (263g ) than the Olympus E-M1 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-M1, the total kit will weigh much higher.
Weather Sealing
Thanks to the weather-sealed body of the E-M1, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the HX10V.
LCD Screen Size and Features
Sony HX10V and Olympus E-M1's LCD screens have the same diagonal size of 3.00 inches.
On the other hand, Olympus E-M1 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 HX10V has a fixed type screen which provides less flexibility in shooting positions compared to E-M1.