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 Canon SX70 HS and Olympus E-M1 side-by-side from the front, back and top in their relative dimensions. Canon SX70 HS has external dimensions of 127 x 91 x 117 mm (5 x 3.58 x 4.61″) and weighs 608 g (1.34 lb / 21.45 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 Canon SX70 HS and the Olympus E-M1. Canon SX70 HS is 3mm narrower and 3mm shorter than Olympus E-M1 but it is also 54mm thicker. As you can tell, actually this is not a fair size comparison since Canon SX70 HS 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 Canon SX70 HS and Olympus E-M1.
Now lets look at the top view comparison of Canon SX70 HS 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 (111g ) than the Canon SX70 HS 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 SX70 HS.
LCD Screen Size and Features
Canon SX70 HS 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, Canon SX70 HS sports a
Fully Articulated screen which is more flexible and useful, especially for taking selfies and video.