Here is quick specs comparison for the new announced Nikon D850 (Amazon/B&H/Adorama) and Sony a7RII (Amazon/B&H/Adorama) and Sony a99II (Amazon/B&H/Adorama). The US price for Nikon D850 body is $3,296.95, will be shipping on September 7th, 2017. See also: D850 Vs. 5D Mark IV Vs. D810 and D850 Vs. D750 Vs. D500.
| Feature | D850 | a7RII | a99II |
|---|---|---|---|
| Sensor Resolution | 45.75 MP | 42 MP | 42 MP |
| Sensor Type | BSI-CMOS | BSI-CMOS | BSI-CMOS |
| Image Size | 8256 x 5504 | 7952 x 5304 | 7952 x 5304 |
| Image Processor | Expeed 5 | Bionz X | Bionz X |
| Image Stabilization | No | 5-axis Sensor-shift | 5-axis Sensor-shift |
| Uncompressed Format | RAW + TIFF | RAW | RAW |
| Viewfinder Type | Optical (pentaprism) | Electronic | Electronic |
| Viewfinder Coverage | 100% | 100% | 100% |
| Viewfinder Magnification | 0.75x | 0.78x | 0.78x |
| Storage Media | XQD, SD UHS-II (2 Slots) | SD/SDHC/SDXC | SD/SDHC/SDXC (2 Slots) |
| Continuous Shooting Speed | 7 FPS, 9 FPS w/ Battery Pack | 5 FPS | 12 FPS |
| Flash Sync Speed | 1/250s | 1/250s | 1/250s |
| Max Shutter Speed | 1/8000 to 30 sec | 1/8000 to 30 sec | 1/8000 to 30 sec |
| Native ISO Sensitivity | ISO 64-25,600 | ISO 100-25,600 | ISO 100-25,600 |
| Boosted ISO Sensitivity | ISO 32, ISO 102,400 | ISO 50, ISO 102,400 | ISO 50, ISO 102,400 |
| Autofocus System | 153 point AF system (99 cross-type) | 399 AF system | 399 point AF system |
| Video Maximum Resolution | 4K@30p | 4K@30p | 4K@30p |
| LCD Screen | 3.2″ Fully Articulated TFT-LCD | 3″ Fully Articulated TFT-LCD | 3″ Fully Articulated TFT-LCD |
| Touchscreen | Yes | No | No |
| LCD Resolution | 2,360,000 dots | 1,228,800 dots | 1,228,800 dots |
| Built-in GPS | No | No | No |
| Built-in Wi-Fi | Yes | Yes | Yes |
| NFC | Yes | Yes | Yes |
| Battery | EN-EL15a | NP-FW50 | NP-FM500H |
| Battery Life | 1,840 shots (CIPA) | 1,200 shots (CIPA) | 1,200 shots (CIPA) |
| USB Version | 3.0 | 2.0 | 2.0 |
| Dimensions | 146 x 124 x 78.5 mm | 127 x 96 x 60 mm | 143 x 104 x 76 mm |
| Weight | 1,015g | 625g | 849g |
| Current Price | $3,299 | $2,698 | $3,198 |