Main
Model
Price
Advantages
launch
Announced
Body type
Camera subcategory
Sensor
Effective pixels
Max resolution
Sensor size
Sensor type
Processor
Image ratio w:h
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
AE Bracketing
Screen / viewfinder
Articulated LCD
Screen size
Screen dots
Touch screen
Screen type
Live view
Viewfinder type
Viewfinder coverage
Viewfinder magnification
Videography features
File Format
Videography notes
Microphone
Speaker
Optics & Focus
Focal length (equiv.)
Optical zoom
Maximum aperture
Autofocus
Digital zoom
Manual focus
Normal focus range
Macro focus range
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
USB charging
Other features
Orientation sensor
Timelapse recording
GPS
Samples
Videos
Summary
The D850 maximum resolution of 8256 x 5504 pixels (46 megapixels) is better than the PowerShot G9 X Mark II maximum resolution of 5472 x 3648 pixels (20 megapixels). The D850 is produced with bigger sensor than the PowerShot G9 X Mark II: Full frame (35.9 x 23.9 mm) versus 1 (13.2 x 8.8 mm). It is very significant specification of this camera as big sensor allows the photographer to produce photos of the higher quality. The D850 has a wider ISO range of 64-25600 in compare with 125-12800 ISO range of the PowerShot G9 X Mark II. Such ISO range allow the photographer to produce better photos in dim light conditions. The D850 provides more presets of white balance - 14. This specification gives the photographer more control over colour.
The D850 is produced with tilting LCD which will allow the photographer to capture pictures from any interesting perspective. The D850 display is better as it has more number of screen dots 2,359,000 in comparison to 1,040,000 dots of the PowerShot G9 X Mark II display. The higher dot count display is better for reviewing images on your camera.
The PowerShot G9 X Mark II is produced with built-in flash. The D850 supports external flash. An external flash provides great control over the exposure and lighting of the object in dim light or in bright light conditions when the photographer needs to fill-flash. The D850 battery life is better than the PowerShot G9 X Mark II battery life. In accordance with CIPA standards you will be able to capture 1840 photos with the D850 and only 235 with the PowerShot G9 X Mark II. The Canon PowerShot G9 X Mark II weighs 206g that is 799g less than the weight of the D850.
Considering the above differences the Nikon D850 is the best choice. Check the list of the best offers on Amazon.