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 Casio EX-ZR400 and Leica M-E Typ 220 side-by-side from the front, back and top in their relative dimensions. Casio EX-ZR400 has external dimensions of 105 x 59 x 29 mm (4.13 x 2.32 x 1.14″) and weighs 205 g (0.45 lb / 7.23 oz) (including batteries). Leica M-E Typ 220 has external dimensions of 139 x 80 x 37 mm (5.47 x 3.15 x 1.46″) and weighs 585 g (1.29 lb / 20.64 oz) (including batteries).
Below you can see the front-view size comparison of the Casio EX-ZR400 and the Leica M-E Typ 220. Casio EX-ZR400 is clearly the smaller of the two cameras. Its body is 34mm narrower, 21mm shorter and 8mm thinner than Leica M-E Typ 220. As you can tell, actually this is not a fair size comparison since Casio EX-ZR400 has a built-in lens but Leica M-E Typ 220 doesn't. Once you put a lens on M-E Typ 220, its thickness will increase significantly.
Here is the back view size comparison of the Casio EX-ZR400 and Leica M-E Typ 220.
Now lets look at the top view comparison of Casio EX-ZR400 and Leica M-E Typ 220.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Casio EX-ZR400 is significantly lighter (380g ) than the Leica M-E Typ 220 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 M-E Typ 220, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Casio Exilim EX-ZR400 nor Leica M-E Typ 220 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
Casio EX-ZR400's 3.00" LCD screen is slightly larger than Leica M-E Typ 220's 2.5 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.