Sony A6400 Review
A 24.2 MP APS-C body: 425 phase-detection AF points with Real-time Eye AF and Real-time Tracking, 4K 30p video, up to 11 fps in Hi+ drive mode, and no in-body stabilization.
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The Verdict
A 24.2 MP APS-C body with 425 phase-detection AF points, Real-time Eye AF for humans and animals, a 2.36M-dot OLED viewfinder and a 3-inch touchscreen that tilts up 180°. It records 4K 30p internally at 8-bit 4:2:0 and has no in-body stabilization.
Owners upgrading from the A6000 or A5000 single out the faster autofocus, and owners use it as a small, light travel camera; some owners find the menus complicated (see What owners report).
- Overall
- 7.2/10
- Image quality
- 7.3
- Autofocus
- 8.0
- Video
- 6.8
- Speed
- 7.4
- Handling and build
- 6.6
| Imaging | |
|---|---|
| Sensor | 24.2MP APS-C CMOS |
| Processor | BIONZ X |
| ISO Range | 100-32,000 (expandable to 102,400) |
| IBIS | None (lens stabilization only) |
| Autofocus | |
| AF System | 425-point PDAF (84% coverage) |
| Eye AF | Real-time Eye AF (human + animal) |
| Tracking | Real-time Tracking |
| Low Light AF | -2 EV |
| Video | |
| Max Resolution | 4K30 (full pixel readout) |
| Internal Rec | 8-bit 4:2:0 |
| Profiles | S-Log2, S-Log3, HLG |
| Recording Limit | XAVC S 4K 24p/25p 60M about 30 min in one take from a cold start with [Auto Power OFF Temp.] on Standard, at 20, 30 and 40 °C (per Sony); about 13 hours per clip at most |
| Build | |
| Body | Magnesium alloy front, dust & moisture resistant |
| Screen | 3" 180° tilting touchscreen |
| EVF | 2.36M-dot OLED |
| Card Slots | Single SD (UHS-I) |
| Battery | NP-FW50 (410 shots) |
| Weight | 403g (with battery and card) |
Maker-published figures, with source and date: Numbers & Sources below.
What We Like
- Real-time Eye AF (human and animal) and Real-time Tracking; owners praise the autofocus (see What owners report)
- Built-in EVF (2.36M-dot OLED)
- 403 g with battery and card (Sony); owners use it as a small, light travel camera (see What owners report)
- 3-inch touchscreen that tilts up 180°
- 13.6 EV RAW dynamic range at ISO 100 (DXOMARK)
Trade-offs
- No in-body stabilization (IBIS)
- Some owners find the menus complicated (see What owners report)
- Single SD card slot (UHS-I)
- 8-bit video only internally
- Micro HDMI (Type D), not full-size
- Battery rated at 410 shots (CIPA); Sony rates the A6700 at 570
Performance Breakdown
Autofocus
The A6400 has 425 phase-detection AF points covering 84% of the frame, Real-time Eye AF for humans and animals, and Real-time Tracking. The low-light AF limit is -2 EV. The A6700 has 759 AF points.
Owners praise the autofocus, and owners upgrading from the A6000 or A5000 single out the faster autofocus (see What owners report).
Video Capabilities
4K 30p is recorded with full pixel readout, internally at 8-bit 4:2:0, with S-Log2, S-Log3 and HLG profiles. Video goes out over micro HDMI (Type D), and the 3-inch touchscreen tilts up 180°. Owners use it for YouTube, livestreaming and church video (see What owners report).
Sony rates continuous recording in XAVC S 4K 24p/25p 60M at about 30 minutes in one take from a cold start with [Auto Power OFF Temp.] on Standard, at 20, 30 and 40 °C; a single clip runs to about 13 hours at most. The ZV-E10 II records up to 4K 60p and the A6700 up to 4K 120p.
Photo Performance
The sensor is a 24.2 MP APS-C Exmor CMOS (23.5 x 15.6 mm, 6000 x 4000 pixels). DXOMARK measured 13.6 EV of RAW dynamic range at ISO 100 and gives it a low-light ISO score of 1431; see What independent testers measured. For photos other people took with it, see Sample photos.
There is no in-body stabilization; stabilization comes from lenses with optical stabilization (OSS). Sony rates continuous shooting at up to 11 fps in Hi+ drive mode, 8 fps in Hi, 6 fps in Mid and 3 fps in Lo.
Lens Mount
The A6400 uses Sony's E-mount, the same mount as the A6700 and Sony's full-frame bodies, so E-mount lenses bought for it also mount on those. Owners still use and recommend it years after release (see What owners report).
Sample photos from other photographers
Photos that other people took with the Sony A6400 and published on Wikimedia Commons under free licences. We chose them; we did not take them. The settings under each photo come from the file's own metadata.
The numbers, and where they come from
Published by the maker
| Sensor size (maker's figure) | 23.5 x 15.6 mm |
|---|---|
| Effective pixels | 24.2 MP |
| Pixel dimensions (3:2) | 6,000 x 4,000 |
| Continuous shooting | 11 fps (Hi+ drive mode) |
| Battery (CIPA) | 410 shots |
| Weight with battery and card | 403 g |
| Viewfinder resolution | 2.36 million dots |
Maker figures checked on 25 Sept 2026 — maker's spec sheet. Continuous shooting, in the maker's words: Continuous shooting: Hi+: 11 fps, Hi: 8 fps, Mid: 6 fps, Lo: 3 fps
Computed from those figures
| Pixel pitch | 3.92 µm |
|---|---|
| Sensor area | 367 mm² |
| Format factor | 1.53x |
| Light gathered vs 35mm | −1.2 stops |
| Print at 300 dpi | 51 cm |
| Diffraction limit | f/5.8 |
Computed from the figures above. Pixel pitch = sensor width / pixel count across. Light gathered = log2 of the area ratio to 36 x 24 mm. Diffraction limit = the aperture at which the Airy disc diameter (2.44 x lambda x N, lambda = 550 nm) reaches two pixel pitches. Other calculators use other thresholds and so quote other numbers.
What independent testers measured
These figures were measured by the outlets named in the last column, not by us. Each one links to the test it comes from, and the conditions it was measured under are listed beside it.
| Measurement | Result | Conditions | Source |
|---|---|---|---|
| RAW dynamic range | 13.6 EV | RAW stills at base ISO (ISO 100) | DXOMARK, checked 23 Oct 2026 |
| Low-light ISO score | 1431 | RAW stills; DXOMARK's computed score from minimum SNR, dynamic range and colour depth | DXOMARK, checked 23 Oct 2026 |
What owners report
We read 161 public posts and reviews on 23 Oct 2026: reddit.com/r/SonyAlpha (53), bhphotovideo.com (108). Each point below came up from at least two different people; the wording is ours.
Praised repeatedly
- Owners upgrading from the A6000 or A5000 single out the faster autofocus. [1][2][3]
- The autofocus gets repeated praise. [1][2]
- Owners use it as a small, light travel and outdoor camera. [1][2][3]
- Owners use it for YouTube, livestreaming and church video. [1][2][3]
- Owners still use and recommend it years after release. [1][2][3]
Complained about repeatedly
These are public posts. We do not check whether the people who wrote them bought or used this camera.
How this score is put together
7.2 out of 10
- Image quality Weight 25% 7.3
24.2MP APS-C at 6000 x 4000
- Autofocus Weight 20% 8.0
425 phase-detect points, real-time tracking
- Video Weight 20% 6.8
4K30 8-bit only
- Speed Weight 15% 7.4
11 fps, 410-shot battery
- Handling and build Weight 20% 6.6
no IBIS, 2.36M-dot EVF, one SD slot
Scored against APS-C interchangeable-lens cameras. The overall figure is the weighted mean of the rows above — it is computed, not set by hand.
How It Compares
| Spec | Sony A6400 | Sony A6700 | Canon R50 |
|---|---|---|---|
| Sensor | 24MP APS-C | 26MP APS-C | 24MP APS-C |
| Video | 4K30 | 4K120 | 4K30 |
| AF Points | 425 points | 759 points | Dual Pixel II |
| Burst | 11 fps | 11 fps | 15 fps |
| IBIS | None | 5 stops | None |
| Buy | Check price at Amazon | Check price at Amazon | Check price at Amazon |
Lens options
Sigma 18-50mm f/2.8 DC DN
A third-party constant f/2.8 standard zoom for APS-C E-mount.
Sony 35mm f/1.8 OSS
Sony's f/1.8 prime with optical stabilization (OSS); the A6400 has no in-body stabilization.
Sony 16-50mm f/3.5-5.6 PZ
Sony's retracting power-zoom kit lens.
Sony A6400 FAQ
Owners still use and recommend it years after release (see What owners report). It has Real-time Eye AF, a built-in 2.36M-dot OLED viewfinder and 4K 30p video; it has no in-body stabilization and no 4K 60p.
The ZV-E10 II has 26 MP, the A6400 24.2 MP. The ZV-E10 II records up to 4K 60p, the A6400 up to 4K 30p. The ZV-E10 II has 759 AF points, the A6400 425. Sony lists both at up to 11 fps in Hi+ drive mode, and neither has in-body stabilization. Sony gives the weights with battery and card as 377 g for the ZV-E10 II and 403 g for the A6400. The A6400 has a 2.36M-dot OLED viewfinder.
No. Stabilization comes from lenses with optical stabilization (OSS), or from a gimbal or tripod. Sony lists the A6700 at 5 stops of in-body stabilization.
Recommended Accessories
Essential gear to maximize your Sony A6400 experience:
Sigma 18-50mm f/2.8 DC DN
Sigma's f/2.8 standard zoom for APS-C E-mount.
Sony NP-FW50
The battery this camera takes; Sony rates the A6400 at 410 shots per charge (CIPA).
SanDisk Extreme 64GB
A UHS-I SD card for the A6400's single card slot.
Peak Design Everyday Sling 6L
Peak Design's 6-litre sling bag.
More gear guides: Best TripodsBest Camera BagsBest SD Cards
Final Recommendation
A 24.2 MP APS-C body with Real-time Eye AF, a 2.36M-dot OLED viewfinder, 4K 30p video at 8-bit 4:2:0 and one card slot, at 403 g with battery and card. It has no in-body stabilization.
Buy it if: You want Real-time Eye AF and a built-in viewfinder in an APS-C E-mount body.
Skip it if: You need in-body stabilization, 4K 60p or 10-bit internal video. The ZV-E10 II records up to 4K 60p; the A6700 records up to 4K 120p and Sony lists it at 5 stops of in-body stabilization.
