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 Panasonic FZ300 and Olympus E-M1 side-by-side from the front, back and top in their relative dimensions. Panasonic FZ300 has external dimensions of 132 x 92 x 117 mm (5.2 x 3.62 x 4.61″) and weighs 691 g (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 Panasonic FZ300 and the Olympus E-M1. Olympus E-M1 is 2mm narrower and 54mm thinner than Panasonic FZ300 but it is also 2mm taller. As you can tell, actually this is not a fair size comparison since Panasonic FZ300 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 Panasonic FZ300 and Olympus E-M1.
Now lets look at the top view comparison of Panasonic FZ300 and Olympus E-M1.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Olympus E-M1 is significantly lighter (194g ) than the Panasonic FZ300 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
Both the FZ300 and the E-M1 have weather sealings in their bodies, making them resistant to water and dust.
LCD Screen Size and Features
Panasonic FZ300 and Olympus E-M1's LCD screens have the same diagonal size of 3.00 inches.
Olympus E-M1 features a
Tilting-only screen which is mostly only good for shooting from waist or over-the-head levels. On the other hand, Panasonic FZ300 sports a
Fully Articulated screen which is more flexible and useful, especially for taking selfies and video.