Sony A6400 vs RX100 VI
The Sony Alpha A6400 and the Sony Cyber-shot DSC-RX100 VI are two digital cameras that were officially introduced, respectively, in January 2019 and June 2018. The A6400 is a mirrorless interchangeable lens camera, while the RX100 VI is a fixed lens compact. The cameras are based on an APS-C (A6400) and an one-inch (RX100 VI) sensor. The A6400 has a resolution of 24 megapixels, whereas the RX100 VI provides 20 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Sony A6400||Sony RX100 VI|
|Mirrorless system camera||Fixed lens compact camera|
|Sony E mount lenses||24-200mm f/2.8-4.5|
|24 MP, APS-C Sensor||20 MP, 1" Sensor|
|4K/30p Video||4K/30p Video|
|ISO 100-32,000 (100 - 102,400)||ISO 125-12,800 (80 - 25,600)|
|Electronic viewfinder (2359k dots)||Electronic viewfinder (2359k dots)|
|3.0 LCD, 922k dots||3.0 LCD, 1229k dots|
|Tilting touchscreen||Tilting touchscreen|
|11 shutter flaps per second||24 shutter flaps per second|
|410 shots per battery charge||240 shots per battery charge|
|120 x 67 x 50 mm, 403 g||102 x 58 x 43 mm, 301 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A6400 and the Sony Cyber-shot DSC-RX100 VI? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
An illustration of the physical size and weight of the Sony A6400 and the Sony RX100 VI is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX100 VI is notably smaller (26 percent) than the Sony A6400. In this context, it is worth noting that neither the A6400 nor the RX100 VI are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX100 VI has a lens built in, whereas the A6400 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A6400 and their specifications in the Sony E-Mount Lens Catalog.
Concerning battery life, the A6400 gets 410 shots out of its NP-FW50 battery, while the RX100 VI can take 240 images on a single charge of its NP-BX1 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left 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 camera comparisons there.
|Sony A6400||4.7 in||2.6 in||2.0 in||14.2 oz||410||n||Jan 2019||899|
|Sony RX100 VI||4.0 in||2.3 in||1.7 in||10.6 oz||240||n||Jun 2018||1,199|
|Fujifilm X-T30||4.6 in||3.3 in||1.9 in||13.5 oz||380||n||Feb 2019||899|
|Nikon D5300||4.9 in||3.9 in||3.0 in||16.9 oz||600||n||Oct 2013||799|
|Sony RX100 VII||4.0 in||2.3 in||1.7 in||10.7 oz||260||n||Jul 2019||1,199|
|Sony A6100||4.7 in||2.6 in||2.3 in||14.0 oz||420||n||Aug 2019||749|
|Sony A6300||4.7 in||2.6 in||1.9 in||14.3 oz||400||Y||Feb 2016||999|
|Sony RX100 V||4.0 in||2.3 in||1.6 in||10.5 oz||220||n||Oct 2016||999|
|Sony RX100 IV||4.0 in||2.3 in||1.6 in||10.5 oz||280||n||Jun 2015||999|
|Sony A5100||4.3 in||2.5 in||1.4 in||10.0 oz||400||n||Aug 2014||549|
|Sony A6000||4.7 in||2.6 in||1.8 in||12.1 oz||360||n||Feb 2014||599|
|Sony RX100 III||4.0 in||2.3 in||1.6 in||10.2 oz||320||n||May 2014||799|
|Sony A3000||5.0 in||3.6 in||3.3 in||14.5 oz||470||n||Aug 2013||329|
|Sony RX100 II||4.0 in||2.3 in||1.5 in||9.9 oz||350||n||Jun 2013||749|
|Sony NEX-5R||4.4 in||2.3 in||1.5 in||9.7 oz||330||n||Aug 2012||749|
|Sony NEX-6||4.7 in||2.6 in||1.7 in||12.2 oz||360||n||Sep 2012||999|
|Sony NEX-7||4.7 in||2.6 in||1.7 in||14.1 oz||430||n||Aug 2011||1,349|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. 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.
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 generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels 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 tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Sony A6400 features an APS-C sensor and the Sony RX100 VI an one-inch sensor. The sensor area in the RX100 VI is 68 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 24MP, the A6400 offers a higher resolution than the RX100 VI (20MP), but the A6400 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 2.41μm for the RX100 VI) due to its larger sensor. Moreover, the A6400 is a somewhat more recent model (by 7 months) than the RX100 VI, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The resolution advantage of the Sony A6400 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A6400 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Sony RX100 VI are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.
The Sony Alpha A6400 has a native sensitivity range from ISO 100 to ISO 32000, which can be extended to ISO 100-102400. The corresponding ISO settings for the Sony Cyber-shot DSC-RX100 VI are ISO 125 to ISO 12800, with the possibility to increase the ISO range to 80-25600.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Sony RX100 VI||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|Sony RX100 VII||1-inch||20.0||5472||3648||4K/30p||21.8||12.4||418||63|
|Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|Sony RX100 IV||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|Sony RX100 III||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67|
|Sony RX100 II||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||67|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (4K/30p).
Beyond body and sensor, cameras can and do differ across a range of features. The A6400 and the RX100 VI are similar in the sense that both feature an electronic viewfinder, which is helpful when framing images in bright sunlight. Moreover, their viewfinders offer an identical resolution of 2359k dots. The adjacent table lists some of the other core features of the Sony A6400 and Sony RX100 VI along with similar information for a selection of comparators.
|Sony RX100 VI||2359||n||3.0||1229||tilting||Y||1/2000s||24.0||Y||Y|
|Sony RX100 VII||2359||n||3.0||921||tilting||Y||1/2000s||90.0||Y||Y|
|Sony RX100 V||2359||n||3.0||1229||tilting||n||1/2000s||24.0||Y||Y|
|Sony RX100 IV||2359||n||3.0||1228||tilting||n||1/2000s||16.0||Y||Y|
|Sony RX100 III||1440||n||3.0||1229||tilting||n||1/2000s||10.0||Y||Y|
|Sony RX100 II||optional||n||3.0||1229||tilting||n||1/2000s||10.0||Y||Y|
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, both cameras under consideration feature an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
Concerning the storage of imaging data, both the A6400 and the RX100 VI write their files to SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 Sony Cyber-shot DSC-RX100 VI and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Sony RX100 VI||-||stereo||mono||-||-||micro||2.0||Y||Y||Y|
|Sony RX100 VII||-||stereo||mono||Y||-||micro||2.0||Y||Y||Y|
|Sony RX100 V||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Sony RX100 IV||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Sony RX100 III||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Sony RX100 II||Y||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the A6400 has a hotshoe, while the RX100 VI does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
The A6400 is a recent model that features in the current product line-up of Sony. In contrast, the RX100 VI has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the RX100 VI was succeeded by the Sony RX100 VII. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Sony website.
So what conclusions can be drawn? Is the Sony A6400 better than the Sony RX100 VI or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Sony Alpha A6400:
- More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
- Better image quality: Features a larger and more technologically advanced imaging sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.59x).
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
- More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
- Longer lasting: Can take more shots (410 versus 240) on a single battery charge.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More modern: Is somewhat more recent (announced 7 months after the RX100 VI).
Arguments in favor of the Sony Cyber-shot DSC-RX100 VI:
- More detailed LCD: Has a higher resolution rear screen (1229k vs 922k dots).
- Faster burst: Shoots at higher frequency (24 vs 11 flaps/sec) to capture the decisive moment.
- Ready to shoot: Has an integrated lens, whereas the A6400 necessitates an extra lens.
- More compact: Is smaller (102x58mm vs 120x67mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the A6400).
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More heavily discounted: Has been on the market for longer (launched in June 2018).
If the count of individual advantages (bullet points above) is taken as a guide, the A6400 is the clear winner of the match-up (12 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Sony A6400 and the Sony RX100 VI place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Travel-Zoom Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the A6400 and the RX100 VI in practical situations. 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|Sony A6400||+||85/100||4.5/5||..||4/5||Jan 2019||899|
|Sony RX100 VI||+ +||83/100||4/5||..||4.5/5||Jun 2018||1,199|
|Fujifilm X-T30||+ +||84/100||4.5/5||5/5||4.5/5||Feb 2019||899|
|Nikon D5300||+ +||79/100||4.5/5||4.5/5||4.5/5||Oct 2013||799|
|Sony RX100 VII||..||..||4/5||..||5/5||Jul 2019||1,199|
|Sony A6100||..||82/100||4/5||..||5/5||Aug 2019||749|
|Sony A6300||+||85/100||5/5||5/5||5/5||Feb 2016||999|
|Sony RX100 V||+ +||83/100||4/5||5/5||4.5/5||Oct 2016||999|
|Sony RX100 IV||+ +||85/100||4/5||4.5/5||4.5/5||Jun 2015||999|
|Sony A5100||+||..||4.5/5||4.5/5||5/5||Aug 2014||549|
|Sony A6000||+||80/100||4.5/5||5/5||5/5||Feb 2014||599|
|Sony RX100 III||+ +||82/100||4.5/5||4.5/5||5/5||May 2014||799|
|Sony A3000||+||..||4/5||4.5/5||4/5||Aug 2013||329|
|Sony RX100 II||+ +||79/100||4.5/5||5/5||4.5/5||Jun 2013||749|
|Sony NEX-5R||..||..||4.5/5||..||4.5/5||Aug 2012||749|
|Sony NEX-6||+ +||78/100||4.5/5||5/5||4.5/5||Sep 2012||999|
|Sony NEX-7||+ +||81/100||4.5/5||5/5||5/5||Aug 2011||1,349|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon M5 vs Sony A6400
- Fujifilm X-A3 vs Sony A6400
- Fujifilm X100T vs Sony A6400
- Leica TL vs Sony A6400
- Nikon 1 J5 vs Sony RX100 VI
- Olympus E-3 vs Sony A6400
- Panasonic G1 vs Sony A6400
- Pentax KP vs Sony A6400
- Sony A6400 vs Sony H200
- Sony A6400 vs Sony NEX-3N
- Sony A6400 vs Sony RX1R II
- Sony A7R IV vs Sony RX100 VI
Specifications: Sony A6400 vs Sony RX100 VI
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
|Camera Model||Sony A6400||Sony RX100 VI|
|Camera Type||Mirrorless system camera||Fixed lens compact camera|
|Camera Lens||Sony E mount lenses||24-200mm f/2.8-4.5|
|Launch Date||January 2019||June 2018|
|Launch Price||USD 899||USD 1,199|
|Sensor Specs||Sony A6400||Sony RX100 VI|
|Sensor Format||APS-C Sensor||1" Sensor|
|Sensor Size||23.5 x 15.6 mm||13.2 x 8.8 mm|
|Sensor Area||366.6 mm2||116.16 mm2|
|Sensor Diagonal||28.2 mm||15.9 mm|
|Sensor Resolution||24 Megapixels||20 Megapixels|
|Image Resolution||6000 x 4000 pixels||5472 x 3648 pixels|
|Pixel Pitch||3.91 μm||2.41 μm|
|Pixel Density||6.55 MP/cm2||17.18 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||4K/30p Video|
|ISO Setting||100 - 32,000 ISO||125 - 12,800 ISO|
|ISO Boost||100 - 102,400 ISO||80 - 25,600 ISO|
|Image Processor||BIONZ X||BIONZ X|
|DXO Sensor Quality (score)||83||..|
|DXO Color Depth (bits)||24||..|
|DXO Dynamic Range (EV)||13.6||..|
|DXO Low Light (ISO)||1431||..|
|Screen Specs||Sony A6400||Sony RX100 VI|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2359k dots||2359k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||922k dots||1229k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Shooting Specs||Sony A6400||Sony RX100 VI|
|Focus System||On-Sensor Phase-detect||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/2000s|
|Continuous Shooting||11 shutter flaps/s||24 shutter flaps/s|
|Electronic Shutter||YES||up to 1/32000s|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||MS or SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Sony A6400||Sony RX100 VI|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Bluetooth Support||Bluetooth built-in||Bluetooth built-in|
|Body Specs||Sony A6400||Sony RX100 VI|
|Battery Life (CIPA)||410 shots per charge||240 shots per charge|
|In-Camera Charging||USB charging||USB charging|
120 x 67 x 50 mm
(4.7 x 2.6 x 2.0 in)
102 x 58 x 43 mm
(4.0 x 2.3 x 1.7 in)
|Camera Weight||403 g (14.2 oz)||301 g (10.6 oz)|
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