Sony a7R II vs Sony a6400 Specifications Comparison
| Camera Feature | Sony a7R II | Sony a6400 |
|---|---|---|
| Announced | June 2015 | January 2019 |
| Camera Type | Mirrorless | Mirrorless |
| Sensor Type | BSI CMOS | CMOS |
| Image Processor | BIONZ X | BIONZ X |
| Resolution | 42.4 MP | 24.2 MP |
| Pixel Dimensions | 7952×5304 | 6000×4000 |
| Sensor Dimensions | 35.9 x 24.0 mm (Full Frame) | 23.5 x 15.6 mm (APS-C) |
| Sensor Pixel Size | 4.51µ | 3.92µ |
| Low Pass Filter | No | Yes |
| IBIS (In-Body Image Stabilization) | Yes | No |
| Base ISO | ISO 100 | ISO 100 |
| Max Native ISO | ISO 25,600 | ISO 32,000 |
| Extended ISOs | ISO 50-102,400 | ISO 100-102,400 |
| High-Resolution Sensor Shift | No | No |
| Focus Stack Bracketing | No | No |
| Pre-Shoot Burst Mode | No | No |
| Fastest Shutter Speed | 1/8000 | 1/4000 |
| Longest Shutter Speed | 30 seconds | 30 seconds |
| Continuous Shooting (Mechanical Shutter) | 5 FPS | 11 FPS |
| Continuous Shooting (Electronic Shutter) | 5 FPS | 8 FPS |
| Notes for High FPS Shooting | 12-bit raw in continuous drive modes (14-bit in single-shot mode) | None |
| Buffer Size (Raw) | 23 frames (5 FPS) | 46 frames (11 FPS) |
| Autofocus System | Hybrid PDAF | Hybrid PDAF |
| Autofocus Points | 399 | 425 |
| Maximum Low-Light AF Sensitivity (Standardized to f/2, ISO 100) | -2 EV | -2 EV |
| Standard Flash Sync Speed | 1/250 | 1/160 |
| Curtain to Protect Sensor at Shutdown | No | No |
Video Features | ||
| Maximum Video Bit Depth (Internal) | 8 bits | 8 bits |
| Maximum Video Bit Depth (External) | 8 bits | 8 bits |
| Raw Video | No | No |
| 4K Maximum Framerate | 30 FPS | 30 FPS |
| 1080P Maximum Framerate | 60 FPS | 120 FPS |
| Additional Video Crop Factor | No | Extra 1.23x crop in 4K 30p; extra 1.14x crop at 1080p 100 / 120 FPS |
| Chroma Subsampling | 4:2:0, 4:2:2 (External) | 4:2:0, 4:2:2 (External) |
| Video Recording Limit | 30 min | 780 min |
Physical and Other Features | ||
| Card Slots | 1 | 1 |
| Slot 1 Type | SD (UHS-I) | SD (UHS-I) |
| Rear LCD Size (Diagonal) | 3.0 in | 3.0 in |
| Rear LCD Resolution | 1.23 million dots | 0.92 million dots |
| Articulating LCD | Single Axis | Single Axis |
| Touchscreen | No | Yes |
| Viewfinder | EVF | EVF |
| Viewfinder Magnification | 0.78x | 1.07x (0.70x FF equiv.) |
| Viewfinder Resolution | 2.36 million dots | 2.36 million dots |
| Viewfinder Coverage | 100% | 100% |
| Voice Memo | No | No |
| Headphone Jack | Yes | No |
| Microphone Jack | Yes | Yes |
| Built-in Flash | No | Yes |
| GPS | No | No |
| Bluetooth | No | Yes |
| WiFi | Yes | Yes |
| USB Type | Type B 2.0 | Type B 2.0 |
| Battery Type | NP-FW50 | NP-FW50 |
| Battery Life (Viewfinder) | 290 frames | 360 frames |
| Battery Life (Rear LCD) | 340 frames | 410 frames |
| Weather Sealed | Yes | Yes |
| Weight (Body Only w/ Battery + Card) | 625 g (1.38 lbs.) | 403 g (0.89 lbs.) |
| Dimensions (LxHxD) | 127 x 96 x 70 mm (5.0 x 3.8 x 2.8″)1 | 120 x 67 x 50 mm (4.7 x 2.6 x 2.0″)2 |
Price Comparison | ||
| MSRP, Body Only | $1800 (Discontinued) | $900 (Check Current Price) |
| Used Prices (Affiliate) | Sony a7R II Used Prices | Sony a6400 Used Prices |
| 1The Sony a7R II’s official dimensions do not include the depth of the protruding viewfinder. To match typical standards today, 10mm were added to the a7R II’s depth measurement in this table. | ||
| 2The Sony a6400’s depth measurement in this table excludes the optional rubber cap for the viewfinder | ||
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