Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate YI M1 and Panasonic GX8 side-by-side from the front, back and top in their relative dimensions. YI M1 has external dimensions of 114 x 64 x 34 mm (4.49 x 2.52 x 1.34″) and weighs 350 (including batteries). Panasonic GX8 has external dimensions of 133 x 78 x 63 mm (5.24 x 3.07 x 2.48″) and weighs 487 g (1.07 lb / 17.18 oz) (including batteries).
Below you can see the front view size comparison of YI M1 and Panasonic GX8. YI M1 is clearly the smaller of the two cameras. Its body is 19mm narrower, 14mm shorter and 29mm thinner than Panasonic GX8.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
YI M1 is significantly lighter (137g ) than the Panasonic GX8 which may become a big advantage especially on long walking trips.
Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you have to also take into account the lenses that you will be using with these bodies. Since both YI M1 and Panasonic GX8 have the same Micro Four Thirds lens mount and Four Thirds sized sensors, lenses will not be a differentiator on total size of the system.
Thanks to the weather sealed body of GX8, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to M1.
LCD Screen Size and Features
YI M1 and Panasonic GX8's LCD screens has the same diagonal size of 3".
On the other hand, Panasonic GX8 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. YI M1's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to GX8.