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 Fujifilm X-A3 and Samsung NX mini side-by-side from the front, back and top in their relative dimensions. Fujifilm X-A3 has external dimensions of 117 x 67 x 40 mm (4.61 x 2.64 x 1.57″) and weighs 339 g (0.75 lb / 11.96 oz) (including batteries). Samsung NX mini has external dimensions of 110 x 62 x 23 mm (4.33 x 2.44 x 0.91″) and weighs 196 g (0.43 lb / 6.91 oz) (including batteries).
Below you can see the front-view size comparison of the Fujifilm X-A3 and the Samsung NX mini. Samsung NX mini is clearly the smaller of the two cameras. Its body is 7mm narrower, 5mm shorter and 17mm thinner than Fujifilm X-A3.
Here is the back view size comparison of the Fujifilm X-A3 and Samsung NX mini.
Now lets look at the top view comparison of Fujifilm X-A3 and Samsung NX mini.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Samsung NX mini is significantly lighter (143g ) than the Fujifilm X-A3 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 also have to take into account the lenses that you will be using with these bodies. Since Fujifilm X-A3 has an APS-C sized sensor and Samsung NX mini has a smaller 1' sensor, Samsung NX mini's lenses for a similar focal length and aperture will generally be lighter and smaller than the Fujifilm X-A3 lenses.
Weather Sealing
Unfortunately neither the Fujifilm X-A3 nor Samsung NX mini 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
Fujifilm X-A3 and Samsung NX mini's LCD screens have the same diagonal size of 3.00 inches.
Both cameras feature
Tilting screens where you can change the angle of the screen to make it easier to shoot from waist or over-the-head levels.