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 Nikon 1 J5 and Sony RX10 IV side-by-side from the front, back and top in their relative dimensions. Nikon 1 J5 has external dimensions of 98 x 60 x 32 mm (3.86 x 2.36 x 1.26″) and weighs 231 g (0.51 lb / 8.15 oz) (including batteries). Sony RX10 IV has external dimensions of 133 x 94 x 145 mm (5.24 x 3.7 x 5.71″) and weighs 1095 g (2.41 lb / 38.62 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon 1 J5 and the Sony RX10 IV. Nikon 1 J5 is clearly the smaller of the two cameras. Its body is 35mm narrower, 34mm shorter and 113mm thinner than Sony RX10 IV. As you can tell, actually this is not a fair size comparison since Sony RX10 IV has a built-in lens but Nikon 1 J5 doesn't. Once you put a lens on J5, its thickness will increase significantly.
Here is the back view size comparison of the Nikon 1 J5 and Sony RX10 IV.
Now lets look at the top view comparison of Nikon 1 J5 and Sony RX10 IV.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon 1 J5 is significantly lighter (864g ) than the Sony RX10 IV 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 J5, the total kit will weigh much higher.
Weather Sealing
Thanks to the weather-sealed body of the RX10 IV, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the J5.
LCD Screen Size and Features
Nikon 1 J5 and Sony RX10 IV'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.