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 Panasonic LX100 and Fujifilm X-E1 side-by-side from the front, back and top in their relative dimensions. Panasonic LX100 has external dimensions of 115 x 66 x 55 mm (4.53 x 2.6 x 2.17″) and weighs 393 g (0.87 lb / 13.86 oz) (including batteries). Fujifilm X-E1 has external dimensions of 129 x 75 x 38 mm (5.08 x 2.95 x 1.5″) and weighs 350 g (0.77 lb / 12.35 oz) (including batteries).
Below you can see the front-view size comparison of the Panasonic LX100 and the Fujifilm X-E1. Panasonic LX100 is 14mm narrower and 9mm shorter than Fujifilm X-E1 but it is also 17mm thicker. As you can tell, actually this is not a fair size comparison since Panasonic LX100 has a built-in lens but Fujifilm X-E1 doesn't. Once you put a lens on X-E1, its thickness will increase significantly.
Here is the back view size comparison of the Panasonic LX100 and Fujifilm X-E1.
Now lets look at the top view comparison of Panasonic LX100 and Fujifilm X-E1.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Fujifilm X-E1 is 43g lighter than the Panasonic LX100 but we don't think this will make a significant difference.
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 X-E1, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Panasonic Lumix DMC-LX100 nor Fujifilm X-E1 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 Compact Cameras with Weather Sealing Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Panasonic LX100's 3.00" LCD screen is slightly larger than Fujifilm X-E1's 2.8" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.