Main
Model
Price
Advantages
launch
Announced
Body type
Camera subcategory
Sensor
Effective pixels
Max resolution
Sensor size
Sensor type
Processor
Image ratio w:h
Other resolutions
Sensor photo detectors
Image
ISO
Boosted ISO (minimum)
Boosted ISO (maximum)
White balance presets
Custom white balance
Image stabilization
Uncompressed format
JPEG quality levels
Photography features
Minimum shutter speed
Maximum shutter speed
Aperture priority
Shutter priority
Manual exposure mode
Subject / scene modes
Built-in flash
External flash
Flash modes
Continuous drive
Self-timer
Metering modes
Exposure compensation
AE Bracketing
WB Bracketing
Screen / viewfinder
Articulated LCD
Screen size
Screen dots
Touch screen
Screen type
Live view
Viewfinder type
Viewfinder coverage
Viewfinder magnification
Videography features
Microphone
Speaker
Resolutions
File Format
Optics & Focus
Autofocus
Number of focus points
Lens mount
Focal length multiplier
Digital zoom
Manual focus
Physical
Weight (inc. batteries)
Dimensions
Environmentally sealed
Battery
Battery details
Battery Life (CIPA)
Storage
Storage types
Storage included
Connectivity
USB
HDMI
Wireless
Wireless notes
Remote control
Other features
Orientation sensor
Timelapse recording
GPS
GPS notes
Samples
Videos
Summary
The Leica M Typ 240 maximum resolution of 5952 x 3976 pixels (24 megapixels) is better in comparison with the Nikon Df maximum resolution of 4928 x 3280 pixels (16 megapixels).
The Nikon Df screen is better as it has more number of screen dots 921,000 in comparison to 920,000 dots of the Leica M Typ 240 screen. The higher dot count screen is better for reviewing images on your camera. The Leica M Typ 240 provides better lowest (60 seconds) and fastest (1/4000 second) shutter speeds.
The M Typ 240 weighs 680g which is 80g lighter in comparison with the weight of the Nikon Df. The M Typ 240 can utilize optional accessory GPS devices. This feature can be useful if you like to travel, to be able to check the photo metadata and find out exactly where a photo was shot.
Taking into account the above differences the Df will be the best choice. Check the lowest price on Amazon.