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
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
Maximum shutter speed (electronic)
Aperture priority
Shutter priority
Manual exposure mode
Built-in flash
Flash range
External flash
Flash modes
Continuous drive
Self-timer
Metering modes
Exposure compensation
AE Bracketing
WB Bracketing
Subject / scene modes
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
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-T2 screen is better as it has more number of screen dots 1,040,000 in compare to 920,000 dots of the X-T20 display. The higher dot count screen is better for reviewing pictures on your camera. The X-T20 has a touch screen.
The X-T20 has built-in flash. The X-T2 is environmentally sealed which means that it will be safe even uncovered if the photographer is out shooting in the rain or snow. The X-T20 battery life is better than the X-T2 battery life. In accordance with CIPA standards the camera owner will be able to produce 350 shots with the X-T20 and only 340 with the X-T2. The X-T20 weighs 383g which is 124g lighter than the weight of the X-T2. The X-T20 can utilize optional accessory GPS devices. This feature can be convenient if you like to travel, to be able to check the image metadata and see exactly where an image was captured.
Considering the above differences the X-T20 becomes the best choice. Get the lowest price on Amazon.