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 A6100 and Canon M5 side-by-side from the front, back and top in their relative dimensions. Sony A6100 has external dimensions of 120 x 67 x 59 mm (4.72 x 2.64 x 2.32″) and weighs 396 g (0.87 lb / 13.97 oz) (including batteries). Canon M5 has external dimensions of 116 x 89 x 61 mm (4.57 x 3.5 x 2.4″) and weighs 427 g (0.94 lb / 15.06 oz) (including batteries).
Below you can see the front-view size comparison of the Sony A6100 and the Canon M5. Sony A6100 is 22mm shorter and 2mm thinner than Canon M5 but it is also 4mm wider.
Here is the back view size comparison of the Sony A6100 and Canon M5.
Now lets look at the top view comparison of Sony A6100 and Canon M5.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Sony A6100 is 31g lighter than the Canon M5 but we don't think this will make a significant difference.
Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you also have to take into account the lenses that you will be using with these bodies. Since both Sony A6100 and Canon M5 have the same APS-C sized sensor, their lenses for a similar focal length and aperture will be similar in size and weight.
Weather Sealing
Unfortunately neither the Sony Alpha a6100 nor Canon EOS M5 provides any type of weather sealing in their bodies, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Canon M5's 3.20" LCD screen is slightly larger than Sony A6100's 3″ screen.