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
White balance presets
Custom white balance
Image stabilization
Uncompressed format
JPEG quality levels
Boosted ISO (minimum)
Boosted ISO (maximum)
Photography features
Minimum shutter speed
Maximum shutter speed
Aperture priority
Shutter priority
Manual exposure mode
Subject / scene modes
Built-in flash
Flash range
External flash
Flash modes
Continuous drive
Self-timer
Metering modes
Exposure compensation
WB Bracketing
Maximum shutter speed (electronic)
AE Bracketing
Screen / viewfinder
Articulated LCD
Screen size
Screen dots
Touch screen
Screen type
Live view
Viewfinder type
Viewfinder coverage
Viewfinder magnification
Viewfinder resolution
Videography features
Resolutions
File Format
Microphone
Speaker
Optics & Focus
Autofocus
Digital zoom
Manual focus
Number of focus points
Lens mount
Focal length multiplier
Physical
Weight (inc. batteries)
Dimensions
Environmentally sealed
Battery
Battery details
Battery Life (CIPA)
Storage
Storage types
Connectivity
USB
HDMI
Microphone port
Headphone port
Wireless
Wireless notes
Remote control
Other features
Orientation sensor
Timelapse recording
GPS
GPS notes
Samples
Videos
Summary
The X-T20 provides more number of focus points in compare with the D3400: 325 vs 11. More number of focus points means more convenience while attempting to focus on objects which are not centred.
The X-T20 has tilting display which will let you to take pictures from any odd angle. The X-T20 has a touch screen.
The D3400 battery life is better than the X-T20 battery life. In accordance with CIPA standards you will be able to produce 1200 photos with the D3400 and only 350 with the X-T20. The X-T20 weighs 383g that is 12g lighter in comparison with the weight of the Nikon D3400. The X-T20 can utilize optional accessory GPS devices. This feature can be convenient if the camera owner is a traveller, to be able to go into the picture metadata and find out exactly where a picture was captured.
The X-T20 has 9 advantages and the D3400 only 3 so the X-T20 will become the best buy. Get the lowest price on Amazon.