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Sony A7 III vs RX10 IV

The Sony Alpha A7 III and the Sony Cyber-shot DSC-RX10 IV are two enthusiast cameras that were revealed to the public, respectively, in February 2018 and September 2017. The A7 III is a mirrorless interchangeable lens camera, while the RX10 IV is a fixed lens compact. The cameras are based on a full frame (A7 III) and an one-inch (RX10 IV) sensor. The A7 III has a resolution of 24 megapixels, whereas the RX10 IV provides 20 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Sony A7 III versus Sony RX10 IV
Sony A7 III Sony RX10 IV
Mirrorless system camera Fixed lens compact camera
Sony E mount lenses 24-600mm f/2.4-4.0
24 MP, Full Frame Sensor 20 MP, 1" Sensor
4K/30p Video 4K/30p Video
ISO 100-51,200 (50 - 204,800) ISO 100-12,800 (64 - 25,600)
Electronic viewfinder (2359k dots) Electronic viewfinder (2359k dots)
3.0 LCD, 922k dots 3.0 LCD, 1440k dots
Tilting touchscreen Tilting touchscreen
10 shutter flaps per second 24 shutter flaps per second
In-body stabilizationLens-based stabilization
Weathersealed bodyWeathersealed body
610 shots per battery charge400 shots per battery charge
127 x 96 x 74 mm, 650 g 133 x 94 x 145 mm, 1095 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7 III and the Sony Cyber-shot DSC-RX10 IV? 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.

Body comparison

The physical size and weight of the Sony A7 III and the Sony RX10 IV are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

Size Sony A7 III vs Sony RX10 IV
Compare A7 III versus RX10 IV top
Comparison A7 III or RX10 IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX10 IV is somewhat larger (3 percent) than the Sony A7 III. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX10 IV has a lens built in, whereas the A7 III 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 A7 III and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the A7 III gets 610 shots out of its NP-FZ100 battery, while the RX10 IV can take 400 images on a single charge of its NP-FW50 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 i
 
Sony RX10 IV 133 mm 94 mm 145 mm 1095 g 400 Y Sep 2017 1,699 i
 
Canon 6D Mark II 144 mm 111 mm 75 mm 765 g 1200 Y Jun 2017 1,999 i
 
Canon G1 X Mark III 115 mm 78 mm 51 mm 399 g 200 Y Oct 2017 1,299 i
 
Fujifilm X-Pro2 141 mm 83 mm 46 mm 495 g 350 Y Jan 2016 1,699 i
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 Y Aug 2018 1,999 i
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999 i
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999 i
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 4,499 i
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199i
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499i
 
Sony A6300 120 mm 67 mm 49 mm 404 g 400 Y Feb 2016 999i
 
Sony A6500 120 mm 67 mm 53 mm 453 g 350 Y Oct 2016 1,399i
 
Sony RX10 III 133 mm 94 mm 127 mm 1051 g 420 Y Mar 2016 1,499 i
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199i
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999i
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999i
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 obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The RX10 IV was launched at a lower price than the A7 III, despite having a lens built in. 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.

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Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Sony A7 III features a full frame sensor and the Sony RX10 IV an one-inch sensor. The sensor area in the RX10 IV is 86 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony A7 III and Sony RX10 IV sensor measures

With 24MP, the A7 III offers a higher resolution than the RX10 IV (20MP), but the A7 III nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 2.41μm for the RX10 IV) due to its larger sensor. Moreover, the A7 III is a somewhat more recent model (by 5 months) than the RX10 IV, 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 A7 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 III 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 RX10 IV 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 A7 III has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 50-204800. The corresponding ISO settings for the Sony Cyber-shot DSC-RX10 IV are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 64-25600.

A7 III versus RX10 IV MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
 
Sony RX10 IV 1-inch 20.0 5472 36484K/30p........
 
Canon 6D Mark II Full Frame 26.0 6240 41601080/60p24.411.9286285
 
Canon G1 X Mark III APS-C 24.0 6000 40001080/60p........
 
Fujifilm X-Pro2 APS-C 24.0 6000 40001080/60p........
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
 
Sony A6300 APS-C 24.0 6000 40004K/30p24.413.7143785
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585
 
Sony RX10 III 1-inch 20.0 5472 36484K/30p23.112.647270
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (4K/30p).

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The A7 III and the RX10 IV 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 table below summarizes some of the other core capabilities of the Sony A7 III and Sony RX10 IV in connection with corresponding information for a sample of similar cameras.

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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)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y
 
Sony RX10 IV2359 Y 3.0 1440 tilting Y 1/2000s 24.0 Y Y
 
Canon 6D Mark IIoptical Y 3.0 1040 swivel Y 1/4000s 6.5 n n
 
Canon G1 X Mark III2360 n 3.0 1040 swivel Y 1/2000s 9.0 Y Y
 
Fujifilm X-Pro22360 n 3.0 1620 fixed n 1/8000s 8.0 n n
 
Nikon Z63690 Y 3.2 2100 tilting Y 1/8000s 12.0 n Y
 
Olympus E-M1 II2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y
 
Panasonic GH53680 n 3.2 1620 swivel Y 1/8000s 12.0 n Y
 
Sony A9 II3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y
 
Sony A63002359 n 3.0 922 tilting n 1/4000s 11.0 Y n
 
Sony A65002359 n 3.0 922 tilting Y 1/4000s 11.0 Y Y
 
Sony RX10 III2359 Y 3.0 1229 tilting n 1/2000s 14.0 Y Y
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y

One feature that is present on the RX10 IV, but is missing on the A7 III is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

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).

The Sony A7 III has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the A7 III and the RX10 IV write their files to SDXC or Memory Stick PRO Duo cards. The A7 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the RX10 IV only has one slot. The A7 III supports UHS-II cards (on its first slot), while the RX10 IV can use UHS-I cards.

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Connectivity 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 A7 III and Sony Cyber-shot DSC-RX10 IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
 
Sony A7 IIIYstereomonoYYmicro3.1YYY
 
Sony RX10 IVYstereomonoYYmicro2.0YY-
 
Canon 6D Mark IIYstereomonoY-mini2.0YYY
 
Canon G1 X Mark IIIYstereomono--micro2.0YYY
 
Fujifilm X-Pro2YstereomonoY-micro2.0Y--
 
Nikon Z6YstereomonoYYmicro3.1Y-Y
 
Olympus E-M1 IIYstereomonoYYmicro3.0Y--
 
Panasonic GH5YstereomonoYYfull3.1Y-Y
 
Sony A9 IIYstereomonoYYmicro3.1YYY
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
 
Sony A9YstereomonoYYmicro2.0YYY
 
Sony A6300YstereomonoY-micro2.0YY-
 
Sony A6500YstereomonoY-micro2.0YY-
 
Sony RX10 IIIYstereomonoYYmicro2.0YY-
 
Sony A7R IIYstereomonoYYmicro2.0YY-
 
Sony A7S IIYstereomonoYYmicro2.0YY-
 
Sony A7 IIYstereomonoYYmicro2.0YY-

Both the A7 III and the RX10 IV are recent models that are part of the current product line-up. The RX10 IV replaced the earlier Sony RX10 III, while the A7 III followed on from the Sony A7 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Sony website.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Sony A7 III or the Sony RX10 IV – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.


Advantages of the Sony Alpha A7 III:

  • More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.70x).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
  • Longer lasting: Can take more shots (610 versus 400) on a single battery charge.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Is somewhat more recent (announced 5 months after the RX10 IV).


Reasons to prefer the Sony Cyber-shot DSC-RX10 IV:

  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 922k dots).
  • Faster burst: Shoots at higher frequency (24 vs 10 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Has an integrated lens, whereas the A7 III necessitates an extra lens.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been on the market for longer (launched in September 2017).

If the count of relative strengths (bullet points above) is taken as a measure, the A7 III is the clear winner of the match-up (15 : 7 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. 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.

A7 III 15:07 RX10 IV

How about other alternatives? Do the specifications of the Sony A7 III and the Sony RX10 IV place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Superzoom 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 remains incomplete and does no justice, for example, to the way the A7 III or the RX10 IV perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is where reviews by experts come in. 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.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Sony A7 III+ +89/1005/55/55/5 Feb 2018 1,999 i
 
Sony RX10 IV+84/1004.5/5..5/5 Sep 2017 1,699 i
 
Canon 6D Mark II+80/1004.5/54/54/5 Jun 2017 1,999 i
 
Canon G1 X Mark III+79/1004.5/5..4.5/5 Oct 2017 1,299 i
 
Fujifilm X-Pro2+83/1004.5/54.5/54.5/5 Jan 2016 1,699 i
 
Nikon Z6....4.5/54.5/55/5 Aug 2018 1,999 i
 
Olympus E-M1 II+ +85/1004.5/55/54.5/5 Sep 2016 1,999 i
 
Panasonic GH5+ +85/1004.5/55/55/5 Jan 2017 1,999 i
 
Sony A9 II..90/1005/5..5/5 Oct 2019 4,499 i
 
Sony A7R III+ +90/1004.5/55/55/5 Oct 2017 3,199i
 
Sony A9+ +89/1005/55/55/5 Apr 2017 4,499i
 
Sony A6300+85/1005/55/55/5 Feb 2016 999i
 
Sony A6500+ +85/1004.5/55/54.5/5 Oct 2016 1,399i
 
Sony RX10 III+84/1004.5/54.5/54.5/5 Mar 2016 1,499 i
 
Sony A7R II+ +90/1005/54.5/55/5 Jun 2015 3,199i
 
Sony A7S II+..4.5/55/55/5 Sep 2015 2,999i
 
Sony A7 II+82/1004.5/55/55/5 Nov 2014 1,999i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Sony A7 III:
Check Amazon price
Sony RX10 IV:
Check Amazon price

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.

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    Specifications: Sony A7 III vs Sony RX10 IV

    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 Specifications
    Camera Model Sony A7 III Sony RX10 IV
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Sony E mount lenses 24-600mm f/2.4-4.0
    Launch Date February 2018 September 2017
    Launch Price USD 1,999 USD 1,699
    Sensor Specs Sony A7 III Sony RX10 IV
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format Full Frame Sensor 1" Sensor
    Sensor Size 35.6 x 23.8 mm 13.2 x 8.8 mm
    Sensor Area 847.28 mm2 116.16 mm2
    Sensor Diagonal 42.8 mm 15.9 mm
    Crop Factor 1.0x 2.7x
    Sensor Resolution 24 Megapixels 20 Megapixels
    Image Resolution 6000 x 4000 pixels 5472 x 3648 pixels
    Pixel Pitch 5.94 μm 2.41 μm
    Pixel Density 2.83 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 - 51,200 ISO 100 - 12,800 ISO
    ISO Boost 50 - 204,800 ISO 64 - 25,600 ISO
    Image Processor BIONZ X BIONZ X
    DXO Sensor Quality (score) 96 ..
    DXO Color Depth (bits) 25.0 ..
    DXO Dynamic Range (EV) 14.7 ..
    DXO Low Light (ISO) 3730 ..
    Screen Specs Sony A7 III Sony RX10 IV
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.78x 0.70x
    Viewfinder Resolution 2359k dots 2359k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 922k dots 1440k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Sony A7 III Sony RX10 IV
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/2000s
    Continuous Shooting 10 shutter flaps/s 24 shutter flaps/s
    Electronic ShutterYESup to 1/32000s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationLens-based stabilization
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium MS or SDXC cards MS or SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support Single UHS-II UHS-I
    Connectivity Specs Sony A7 III Sony RX10 IV
    External Flash Hotshoe Hotshoe
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in NFC built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Sony A7 III Sony RX10 IV
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type NP-FZ100 NP-FW50
    Battery Life (CIPA)610 shots per charge400 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    133 x 94 x 145 mm
    (5.2 x 3.7 x 5.7 in)
    Camera Weight 650 g (22.9 oz) 1095 g (38.6 oz)

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