LCD and Viewfinder
Leica M8 has a Fixed Type 2.5" LCD screen with a resolution of 230k dots. At only 2.5", the screen is on the smaller side and 230kdot resolution is lower than most of the recent models in this class.
M8 has a built-in Optical (rangefinder) viewfinder.
Max Shutter speed
Leica M8 can shoot continuously at max speed of
and has max shutter speed of 1/8000 sec
Unfortunately M8 doesn't have a built-in flash but it has a flash shoe for mounting external flashes.
Unfortunately Leica M8 doesn't have Video recording ability.
Connectivity and Storage
Leica M8 has a USB 2.0 (480 Mbit/sec) port to connect your camera to other devices.
Leica M8 is powered by a proprietary battery which provides a shooting life of 550 according to CIPA standards.
Considering that the average battery life of Mirrorless type cameras is 363 shots, Leica M8 has a good battery life for its class.
Battery Life Comparison in Pro Mirrorless Cameras
Olympus E-M1X with its 870shots is the model with longest battery life among Pro Mirrorless cameras. Check the comparison of Leica M8 vs Olympus E-M1X or take a look at Longest Battery Life Mirrorless cameras list.
Leica M8 Features Compared to Main Competitors