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
Maximum shutter speed (electronic)
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
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
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
USB charging
Other features
Orientation sensor
Timelapse recording
GPS
Samples
Videos
Main
Model
Price
Advantages
PHOTOGRAPHY FEATURES Subject / scene modes: Yes
PHOTOGRAPHY FEATURES Built-in flash: Yes
PHYSICAL Weight (inc. batteries): 331 g (0.73 lb / 11.68 oz)
Main
Model
Price
Advantages
SENSOR Effective pixels: 46 megapixels
SENSOR Max resolution: 8256 x 5504
SENSOR Sensor size: Full frame (35.9 x 23.9 mm)
SENSOR Sensor photo detectors: 47 megapixels
IMAGE ISO: Auto, 64-25600 (expands to 32-102400)
IMAGE Boosted ISO (minimum): 32
IMAGE Boosted ISO (maximum): 102400
IMAGE White balance presets: 14
PHOTOGRAPHY FEATURES Maximum shutter speed: 1/8000 sec
PHOTOGRAPHY FEATURES External flash: Yes (via hot shoe or flash sync port)
PHOTOGRAPHY FEATURES Continuous drive: 9.0 fps
SCREEN / VIEWFINDER Screen dots: 2,359,000
SCREEN / VIEWFINDER Touch screen: Yes
SCREEN / VIEWFINDER Viewfinder type: Optical (pentaprism)
OPTICS & FOCUS Number of focus points: 151
PHYSICAL Battery Life (CIPA): 1840
Summary
The Nikon D850 highest resolution of 8256 x 5504 pixels (46 megapixels) is better in comparison with the X-A10 highest resolution of 4896 x 3264 pixels (16 megapixels). The Nikon D850 is equipped with larger sensor compared to the X-A10: Full frame (35.9 x 23.9 mm) versus APS-C (23.6 x 15.6 mm). It is very significant difference between these models as large sensor lets the camera owner to shoot pictures of the better quality. The Nikon D850 has a wider ISO range of 64-25600 than 200-6400 ISO range of the X-A10. Such ISO range allow the photographer to shoot better pictures in low light situations. The Nikon D850 offers more number of white balance presets - 14. This specification gives the camera owner more control over colour. The Nikon D850 provides more number of focus points than the X-A10: 151 vs 49. More number of focus points means less risk of losing focus lock during tracking a moving object.
The Nikon D850 display is better as it offers more number of screen dots 2,359,000 in compare to 1,040,000 dots of the X-A10 display. The higher dot count display is better for reviewing photos on your camera. The Nikon D850 is equipped with a touch screen.
The X-A10 is equipped with built-in flash. The Nikon D850 supports external flash. It provides amazing control over the exposure and lighting of the object in dim light or in bright light situations where you need to fill-flash. The Nikon D850 battery life is better in compare to the X-A10 battery life. In accordance with CIPA standards you will be able to make 1840 shots with the D850 and only 410 with the X-A10. The X-A10 weighs 331g that is 674g less in comparison with the weight of the Nikon D850.
Considering the above differences the D850 will become the best buy. Check the list of the best offers on Amazon