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Sony A6400 Comparison Review

The Sony Alpha A6400 is a mirrorless interchangeable lens camera that was officially introduced in January 2019 and is equipped with an APS-C sensor. It offers a resolution of 24 megapixel.

camera

The Sony A6400 has a Camera Elo of 2967. This very strong rating puts it among the elite group of camera grand masters. The A6400 ranks among the top 20 percent of all mirrorless interchangeable lens cameras. In terms of its sensor size category (APS cameras), the A6400 falls among the top 10 percent.

Headline Specifications
Sony A6400
Mirrorless system camera
Sony E mount lenses
24 MP, APS-C Sensor
4K/30p Video
ISO 100-32000 (100-102400)
Electronic viewfinder (2359k dots)
3.0" LCD, 922k dots
Tilting touchscreen
11 shutter flaps per second
410 shots per battery charge
120 x 67 x 50 mm, 403 g


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Read on to find out more about the camera's size, sensor, features, reception by expert reviewers, and how it compares to other digital cameras.

Body comparison with a credit card

The side-by-side display below illustrates the physical size of the Sony A6400 vis-à-vis a credit card. Three consecutive perspectives from the front, the top, and the back are presented. All size dimensions are rounded to the nearest millimeter.

Sony A6400 vs credit card front
A6400 versus credit card top view
A6400 and credit card rear side

The table below summarizes the key physical specs of the Sony A6400 alongside a set of comparators. If you want to review a camera pair side-by-side, just select a right-side comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Sony A6400 4.7 in 2.6 in 2.0 in 14.2 oz 410 n Jan 2019 899 i i Sony A6400
Fujifilm X-T30« » 4.6 in 3.3 in 1.9 in 13.5 oz 380 n Feb 2019 899 i i Fujifilm X-T30
Fujifilm X-E3« » 4.8 in 2.9 in 1.7 in 11.9 oz 350 n Sep 2017 899 i i Fujifilm X-E3
Fujifilm X-T20« » 4.6 in 3.3 in 1.6 in 13.5 oz 350 n Jan 2017 899 i i Fujifilm X-T20
Nikon D5500« » 4.9 in 3.8 in 2.8 in 14.8 oz 820 n Jan 2015 899- i Nikon D5500
Sony A6300« » 4.7 in 2.6 in 1.9 in 14.3 oz 400 Y Feb 2016 999- i Sony A6300
Sony A5000« » 4.3 in 2.5 in 1.4 in 9.5 oz 420 n Jan 2014 449- i Sony A5000
Sony A6000« » 4.7 in 2.6 in 1.8 in 12.1 oz 360 n Feb 2014 599- i Sony A6000
Sony A3000« » 5.0 in 3.6 in 3.3 in 14.5 oz 470 n Aug 2013 329- i Sony A3000
Sony NEX-6« » 4.7 in 2.6 in 1.7 in 12.2 oz 360 n Sep 2012 999- i Sony NEX-6
Sony NEX-7« » 4.7 in 2.6 in 1.7 in 14.1 oz 430 n Aug 2011 1,349- i Sony NEX-7

The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The Sony A6400 was launched in the US market at a price of $899. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sony A6400:
Check Amazon price

Sensor comparison with a 35mm slide

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors are more costly to manufacture and tent to lead to bigger and heavier cameras and lenses.

The Sony A6400 features an APS-C sensor and has a format factor (sometimes also referred to as "crop factor") of 1.5. Within the spectrum of camera sensors, this places the Sony A6400 among the medium-sized sensor cameras that aim to strike a balance between image quality and portability.

Sony A6400 sensor measures

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Sony A6400 APS-C 24.0 6000 40004K/30p----Sony A6400
Fujifilm X-T30« » APS-C 26.0 6240 41604K/30p----Fujifilm X-T30
Fujifilm X-E3« » APS-C 24.0 6000 40004K/30p----Fujifilm X-E3
Fujifilm X-T20« » APS-C 24.0 6000 40004K/30p----Fujifilm X-T20
Nikon D5500« » APS-C 24.0 6000 40001080/60p24.114.0143884Nikon D5500
Sony A6300« » APS-C 24.0 6000 40004K/30p24.413.7143785Sony A6300
Sony A5000« » APS-C 19.8 5456 36321080/60i23.813.0108979Sony A5000
Sony A6000« » APS-C 24.0 6000 40001080/60p24.113.1134782Sony A6000
Sony A3000« » APS-C 19.8 5456 36321080/60i23.712.8106878Sony A3000
Sony NEX-6« » APS-C 16.0 4912 32641080/60i23.713.1101878Sony NEX-6
Sony NEX-7« » APS-C 24.0 6000 40001080/60i24.113.4101681Sony NEX-7

Many modern cameras are not only capable of taking still images, but can also record movies. The A6400 indeed provides movie recording capabilities. The highest resolution format that the A6400 can use is 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The following tables report on some other key feature differences and similarities of the Sony A6400 and comparable cameras.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
Sony A64002359 n 3.0 922 tilting Y 4000 11.0 Y n Sony A6400
Fujifilm X-T30« »2360 n 3.0 1040 tilting Y 4000 8.0 Y n Fujifilm X-T30
Fujifilm X-E3« »2360 n 3.0 1040 fixed Y 4000 8.0 n n Fujifilm X-E3
Fujifilm X-T20« »2360 n 3.0 1040 tilting Y 4000 8.0 Y n Fujifilm X-T20
Nikon D5500« »optical n 3.2 1037 swivel Y 4000 5.0 Y n Nikon D5500
Sony A6300« »2359 n 3.0 922 tilting n 4000 11.0 Y n Sony A6300
Sony A5000« »- n 3.0 461 tilting n 4000 3.5 Y n Sony A5000
Sony A6000« »1440 n 3.0 922 tilting n 4000 11.0 Y n Sony A6000
Sony A3000« »202 n 3.0 230 fixed n 4000 2.5 Y n Sony A3000
Sony NEX-6« »2359 n 3.0 921 tilting n 4000 10.0 Y n Sony NEX-6
Sony NEX-7« »2359 n 3.0 921 tilting n 4000 10.0 Y n Sony NEX-7

One convenient feature of the A6400 is the presence of an on-board flash. While this built-in flash is not very powerful, it can at times be useful as a fill-in light to brighten deep shadow areas.

 

Connection comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Sony Alpha A6400 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
Sony A6400YstereomonoY-micro2.0YYYSony A6400
Fujifilm X-T30« »YstereomonoY-micro3.1Y-YFujifilm X-T30
Fujifilm X-E3« »YstereomonoY-micro2.0Y-YFujifilm X-E3
Fujifilm X-T20« »YstereomonoY-micro2.0Y--Fujifilm X-T20
Nikon D5500« »YstereomonoY-mini2.0Y--Nikon D5500
Sony A6300« »YstereomonoY-micro2.0YY-Sony A6300
Sony A5000« »-stereomono--micro2.0YY-Sony A5000
Sony A6000« »Ystereomono--micro2.0YY-Sony A6000
Sony A3000« »Ystereomono--mini2.0---Sony A3000
Sony NEX-6« »Ystereomono--mini2.0Y--Sony NEX-6
Sony NEX-7« »Ystereomono--mini2.0---Sony NEX-7

It is notable that the A6400 has a microphone port. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

 

Expert reviews

While the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the A6400. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is why hands-on reviews by experts are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Sony A6400Rec---- Jan 2019 899 i i Sony A6400
Fujifilm X-T30« »----- Feb 2019 899 i i Fujifilm X-T30
Fujifilm X-E3« »Rec84/1004.5/54.5/54.5/5 Sep 2017 899 i i Fujifilm X-E3
Fujifilm X-T20« »HiRec82/1005/5-4.5/5 Jan 2017 899 i i Fujifilm X-T20
Nikon D5500« »Rec79/1004.5/55/54.5/5 Jan 2015 899- i Nikon D5500
Sony A6300« »Rec85/1005/55/55/5 Feb 2016 999- i Sony A6300
Sony A5000« »Rec-4.5/5rev4.5/5 Jan 2014 449- i Sony A5000
Sony A6000« »Rec80/1004.5/55/55/5 Feb 2014 599- i Sony A6000
Sony A3000« »Rec-4/54.5/54/5 Aug 2013 329- i Sony A3000
Sony NEX-6« »HiRec78/1004.5/55/54.5/5 Sep 2012 999- i Sony NEX-6
Sony NEX-7« »HiRec81/1004.5/55/55/5 Aug 2011 1,349- i Sony NEX-7

The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Sony A6400 FAQ

Below are some additional questions and answers concerning some particular features of the A6400.

What type of imaging sensor is used in the A6400?

The camera is build around a CMOS (Complementary Metal–Oxide–Semiconductor) sensor.

Which image processing chip is used to convert the raw signal into an image file and perform noise reduction and image sharpening?

Sony equipped the A6400 with the BIONZ X image processor.

What is the ISO sensitivity range of the A6400?

The camera has a native sensitivity range from ISO 100 to ISO 32000.

Does the camera have a selfie-friendly screen?

Yes, the LCD-screen of the A6400 is flexible and can be turned to be front-facing for capturing selfies.

Does the Sony A6400 offer an option for completely silent shooting?

Yes, the camera has an electronic shutter that can be activated to make silent picture taking possible.

Does the Sony A6400 feature an autofocus assist light?

Yes, the camera has a lamp built-in that can illuminate the subject and improve autofocus in low-light settings.

What is the fastest shutter speed that can be used with flash?

The A6400's flash sync speed is 1/160 sec.

Which battery does the A6400 use?

The camera gets its power from the NP-FW50 (here at amazon), which is a rechargeable Lithium-Ion power pack.

Where can I find the best deals for the A6400?

Grey imports from Asia, as found on eBay are often very attractively priced. However, these cameras come without a warranty from Sony.

Camera to camera comparisons

In case you would like to check on the differences and similarities with other camera models, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications Summary
    Camera Model Sony A6400
    Camera Type Mirrorless system camera
    Camera Lens Sony E mount lenses
    Launch Date January 2019
    Launch Price USD 899
    Sensor Specs
    Sensor Technology CMOS
    Sensor Format APS-C Sensor
    Sensor Size 23.5 x 15.6 mm
    Sensor Area 366.6 mm2
    Sensor Diagonal 28.2 mm
    Crop Factor 1.5x
    Sensor Resolution 24 Megapixels
    Image Resolution 6000 x 4000 pixels
    Pixel Pitch 3.91 μm
    Pixel Density 6.55 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability 4K/30p Video
    ISO Setting 100-32000 ISO
    ISO Boost 100-102400 ISO
    Image Processor BIONZ X
    Screen Specs
    Viewfinder Type Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.70x
    Viewfinder Resolution 2359k dots
    LCD Framing Live View
    Rear LCD Size 3.0 inch
    LCD Resolution 922k dots
    LCD Attachment Tilting screen
    Touch Input Touchscreen
    Shooting Specs
    Autofocus System On-Sensor Phase-detect
    Maximum Shutter Speed 1/4000s
    Continuous Shooting 11 shutter flaps/s
    Silent ShootingElectronic Shutter
    Fill Flash Build-in Flash
    Storage Medium MS or SDXC cards
    Second Storage Option Single card slot
    Connectivity Specs
    External Flash Hotshoe
    USB Connector USB 2.0
    HDMI Port micro HDMI
    Microphone Port External MIC port
    Wifi Support Wifi built-in
    Near-Field Communication NFC built-in
    Bluetooth Support Bluetooth built-in
    Body Specs
    Battery Type NP-FW50 power pack
    Battery Life (CIPA)410 shots per charge
    In-Camera Charging USB charging
    Body Dimensions 120 x 67 x 50 mm
    (4.7 x 2.6 x 2.0 in)
    Camera Weight 403 g (14.2 oz)

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