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 Panasonic LX100 II and Sony RX100 IV side-by-side from the front, back and top in their relative dimensions. Panasonic LX100 II has external dimensions of 115 x 66 x 64 mm (4.53 x 2.6 x 2.52″) and weighs 392 g (0.86 lb / 13.83 oz) (including batteries). Sony RX100 IV has external dimensions of 102 x 58 x 41 mm (4.02 x 2.28 x 1.61″) and weighs 298 g (0.66 lb / 10.51 oz) (including batteries).
Below you can see the front view size comparison of Panasonic LX100 II and Sony RX100 IV. Sony RX100 IV is clearly the smaller of the two cameras. Its body is 13mm narrower, 8mm shorter and 23mm thinner than Panasonic LX100 II.
Here is the back view size comparison of Panasonic LX100 II and Sony RX100 IV.
Now lets look at the top view comparison of Panasonic LX100 II and Sony RX100 IV.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sony RX100 IV is significantly lighter (94g ) than the Panasonic LX100 II which may become a big advantage especially on long walking trips.
Unfortunately neither Panasonic Lumix DC-LX100 II nor Sony Cyber-shot DSC-RX100 IV provides any type of weather sealing in their body, 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 Compact Cameras with Weather Sealing
LCD Screen Size and Features
Panasonic LX100 II and Sony RX100 IV's LCD screens has the same diagonal size of 3".
On the other hand, Sony RX100 IV features a Tilting screen
where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Panasonic LX100 II has a fixed type screen which provides less flexibility in shooting positions compared to RX100 IV.