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)
White balance presets
Custom white balance
Image stabilization
Image stabilization notes
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
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
Viewfinder resolution
Videography features
Resolutions
File Format
Videography notes
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
Samples
Videos
Summary
The Sony Alpha 7R maximum resolution of 7360 x 4912 pixels (36 megapixels) is better than the Sony Alpha 7 II maximum resolution of 6000 x 4000 pixels (24 megapixels). The Sony Alpha 7 II offers more focus points than the Sony Alpha 7R: 117 vs 25. More focus points means less risk of losing focus lock during tracking a moving subject.
The Sony Alpha 7 II battery life is better in compare to the Sony Alpha 7R battery life. According to CIPA standards you will be able to capture 350 shots with the Alpha 7 II and only 340 with the Alpha 7R. The Sony Alpha 7R weighs 465g which is 134g lighter than the weight of the Sony Alpha 7 II.
Taking into account the above differences the Sony Alpha 7R will be the best choice. Get the lowest price on Amazon.