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 Leica M10 and Fujifilm XF10 side-by-side from the front, back and top in their relative dimensions. Leica M10 has external dimensions of 139 x 39 x 80 mm (5.47 x 1.54 x 3.15″) and weighs 660 g (1.46 lb / 23.28 oz) (including batteries). Fujifilm XF10 has external dimensions of 113 x 64 x 41 mm (4.45 x 2.52 x 1.61″) and weighs 279 g (0.62 lb / 9.84 oz) (including batteries).
Below you can see the front-view size comparison of the Leica M10 and the Fujifilm XF10. Fujifilm XF10 is 26mm narrower and 39mm thinner than Leica M10 but it is also 25mm taller. As you can tell, actually this is not a fair size comparison since Fujifilm XF10 has a built-in lens but Leica M10 doesn't. Once you put a lens on M10, its thickness will increase significantly.
Here is the back view size comparison of the Leica M10 and Fujifilm XF10.
Now lets look at the top view comparison of Leica M10 and Fujifilm XF10.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Fujifilm XF10 is significantly lighter (381g ) than the Leica M10 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 M10, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Leica M10 nor Fujifilm XF10 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 Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Leica M10 and Fujifilm XF10's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.