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Sony A7R III vs RX0

The Sony Alpha A7R III and the Sony Cyber-shot DSC-RX0 are two digital cameras that were announced, respectively, in October 2017 and August 2017. The A7R III is a mirrorless interchangeable lens camera, while the RX0 is a fixed lens compact. The cameras are based on a full frame (A7R III) and an one-inch (RX0) sensor. The A7R III has a resolution of 42.2 megapixels, whereas the RX0 provides 15.4 MP.

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

Headline Specifications
Sony A7R III
versus
Sony RX0
Sony A7R III   Sony RX0
Mirrorless system camera Fixed lens compact camera
Sony E mount lenses 24mm f/4.0
42.2 MP – Full Frame sensor 15.4 MP – 1" sensor
4K/30p Video 1080/60p Video
ISO 100-32,000 (50 - 102,400) ISO 125-12,800
Electronic viewfinder (3686k dots) No viewfinder, LCD framing
3.0" LCD – 1440k dots 1.5" LCD – 230k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
10 shutter flaps per second 5.5 shutter flaps per second
In-body stabilizationno shake reduction
Weathersealed bodyWaterproof body (10m)
650 shots per battery charge240 shots per battery charge
127 x 96 x 74 mm, 650 g 59 x 41 x 30 mm, 110 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7R III and the Sony Cyber-shot DSC-RX0? 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Sony A7R III and the Sony RX0. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

Size Sony A7R III vs Sony RX0
Compare A7R III versus RX0 top
Comparison A7R III or RX0 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX0 is considerably smaller (80 percent) than the Sony A7R 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. More than that, the RX0 is water-proof up to 10m and can, thus, be used for underwater photography.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX0 has a lens built in, whereas the A7R 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 A7R III and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the A7R III gets 650 shots out of its Sony NP-FZ100 battery, while the RX0 can take 240 images on a single charge of its Sony NP-BJ1 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
2.
 
Sony RX0 59 mm 41 mm 30 mm 110 g 240 Y Aug 2017 699ebay.com
3.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 3,399ebay.com
4.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 Y Oct 2022 3,899 amazon.com
5.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 amazon.com
6.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
7.
 
Sony A7R IVA 129 mm 96 mm 78 mm 665 g 670 Y Apr 2021 3,499 amazon.com
8.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 amazon.com
9.
 
Sony RX0 II 59 mm 41 mm 35 mm 132 g 240 Y Mar 2019 699 amazon.com
10.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
11.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
12.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
13.
 
Sony RX10 IV 133 mm 94 mm 145 mm 1095 g 400 Y Sep 2017 1,699 amazon.com
14.
 
Sony RX10 III 133 mm 94 mm 127 mm 1051 g 420 Y Mar 2016 1,499ebay.com
15.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
16.
 
Sony RX10 II 129 mm 88 mm 102 mm 813 g 400 Y Jun 2015 1,299ebay.com
17.
 
Sony RX10 129 mm 88 mm 102 mm 813 g 420 Y Oct 2013 1,299ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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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. The RX0 was launched at a lower price than the A7R 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Sony A7R III features a full frame sensor and the Sony RX0 an one-inch sensor. The sensor area in the RX0 is 87 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 A7R III and Sony RX0 sensor measures

With 42.2MP, the A7R III offers a higher resolution than the RX0 (15.4MP), but the A7R III nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 2.74μm for the RX0) due to its larger sensor. It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. Coming back to sensor resolution, it should be mentioned that the A7R III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R III for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 cm. The corresponding values for the Sony RX0 are 24 x 16 inches or 61 x 40.6 cm for good quality, 19.2 x 12.8 inches or 48.8 x 32.5 cm for very good quality, and 16 x 10.7 inches or 40.6 x 27.1 cm for excellent quality prints.

The A7R III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the RX0, the A7R III has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Sony Alpha A7R III has a native sensitivity range from ISO 100 to ISO 32000, which can be extended to ISO 50-102400. The corresponding ISO settings for the Sony Cyber-shot DSC-RX0 are ISO 125 to ISO 12800 (no boost).

In terms of underlying technology, the A7R III is build around a BSI-CMOS sensor, while the RX0 uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

A7R III versus RX0 MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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. Of the two cameras under review, the A7R III provides substantially higher image quality than the RX0, with an overall score that is 32 points higher. This advantage is based on 3.6 bits higher color depth, 2.3 EV in additional dynamic range, and 2.7 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
2.
 
Sony RX0 1-inch 15.4 4800 32001080/60p22.412.454868
3.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
4.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
5.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
6.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
7.
 
Sony A7R IVA Full Frame 60.2 9504 63364K/30p26.014.8334499
8.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
9.
 
Sony RX0 II 1-inch 15.4 4800 32004K/30p22.112.455565
10.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
11.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
12.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
13.
 
Sony RX10 IV 1-inch 20.0 5472 36484K/30p22.012.240863
14.
 
Sony RX10 III 1-inch 20.0 5472 36484K/30p23.112.647270
15.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
16.
 
Sony RX10 II 1-inch 20.0 5472 36484K/30p23.012.653170
17.
 
Sony RX10 1-inch 20.0 5472 36481080/60p22.912.647469
Note: DXO values in italics represent estimates based on sensor size and age.
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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, but the A7R III provides a higher video resolution than the RX0. It can shoot video footage at 4K/30p, while the RX0 is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R III has an electronic viewfinder (3686k dots), which can be very helpful when shooting in bright sunlight. In contrast, the RX0 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Sony A7R III, the Sony RX0, and comparable cameras.

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Core Features
# image Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
2.
 
Sony RX0none n1.5 / 230 fixed n .. 5.5/s n n
3.
 
Nikon Z73690 Y3.2 / 2100 tilting Y 1/8000s 9.0/s n Y
4.
 
Sony A7R V9440 n3.2 / 2100 full-flex Y 1/8000s 10.0/s n Y
5.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
6.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
7.
 
Sony A7R IVA5760 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
8.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
9.
 
Sony RX0 IInone n1.5 / 230 tilting n .. 5.5/s n n
10.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
11.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
12.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
13.
 
Sony RX10 IV2359 Y3.0 / 1440 tilting Y 1/2000s 24.0/s Y Y
14.
 
Sony RX10 III2359 Y3.0 / 1229 tilting n 1/2000s 14.0/s Y Y
15.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
16.
 
Sony RX10 II2359 Y3.0 / 1229 tilting n 1/3200s 14.0/s Y Y
17.
 
Sony RX101440 Y3.0 / 1229 tilting n 1/3200s 10.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The A7R III has a touchscreen, while the RX0 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 A7R 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.

The A7R III writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the RX0 uses micro SDXC or Memory Stick Micro cards. The A7R III features dual card slots, which can be very useful in case a memory card fails. In contrast, the RX0 only has one slot. The A7R III supports UHS-II cards (on its first slot), while the RX0 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 A7R III and Sony Cyber-shot DSC-RX0 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
2.
 
Sony RX0-stereo / monoY-micro2.0Y-Y
3.
 
Nikon Z7Ystereo / monoYYmicro3.1Y-Y
4.
 
Sony A7R VYstereo / monoYYfull3.2Y-Y
5.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
6.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
7.
 
Sony A7R IVAYstereo / monoYYmicro3.2YYY
8.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
9.
 
Sony RX0 II-stereo / monoY-micro2.0Y-Y
10.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
11.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
12.
 
Sony A9Ystereo / monoYYmicro2.0YYY
13.
 
Sony RX10 IVYstereo / monoYYmicro2.0YY-
14.
 
Sony RX10 IIIYstereo / monoYYmicro2.0YY-
15.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
16.
 
Sony RX10 IIYstereo / monoYYmicro2.0YY-
17.
 
Sony RX10Ystereo / monoYYmicro2.0YY-
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It is notable that the A7R III has a hotshoe, while the RX0 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Studio photographers will appreciate that the Sony A7R III (unlike the RX0) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the A7R III and the RX0 have been discontinued, but can regularly be found used on ebay. The RX0 was replaced by the Sony RX0 II, while the A7R III was followed by the Sony A7R IV. Further information on the features and operation of the A7R III and RX0 can be found, respectively, in the Sony A7R III Manual (free pdf) or the online Sony RX0 Manual.

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Review summary

So what is the bottom line? Is there a clear favorite between the Sony A7R III and the Sony RX0? Which camera is better? The listing below highlights the relative strengths of the two models.


Arguments in favor of the Sony Alpha A7R III:

  • More detail: Offers more megapixels (42.2 vs 15.4MP) with a 66% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Scores substantially higher (32 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (3.6 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (2.3 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (2.7 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • Larger screen: Has a bigger rear LCD (3.0" vs 1.5") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 230k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (10 vs 5.5 flaps/sec) to capture the decisive moment.
  • 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 (650 versus 240) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • 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).


Reasons to prefer the Sony Cyber-shot DSC-RX0:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Ready to shoot: Has an integrated lens, whereas the A7R III necessitates an extra lens.
  • More compact: Is smaller (59x41mm vs 127x96mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the A7R III).
  • Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 10m).
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.

If the count of relative strengths (bullet points above) is taken as a measure, the A7R III is the clear winner of the match-up (26 : 6 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

A7R III 26:06 RX0

How about other alternatives? Do the specifications of the Sony A7R III and the Sony RX0 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Prime Lens Compact Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the A7R III or the RX0. 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 (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
2.
 
Sony RX0........3.5/54/5 Aug 2017 699ebay.com
3.
 
Nikon Z75/5+4.8/589/1004.5/55/5 Aug 2018 3,399ebay.com
4.
 
Sony A7R V5/5+ +4.5/592/100.... Oct 2022 3,899 amazon.com
5.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 amazon.com
6.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
7.
 
Sony A7R IVA5/5+4.5/591/1004.5/55/5 Apr 2021 3,499 amazon.com
8.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 3,499 amazon.com
9.
 
Sony RX0 II........3.5/54/5 Mar 2019 699 amazon.com
10.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
11.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
12.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
13.
 
Sony RX10 IV5/5+3.5/584/1004.5/55/5 Sep 2017 1,699 amazon.com
14.
 
Sony RX10 III5/5+..84/1004.5/54.5/5 Mar 2016 1,499ebay.com
15.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
16.
 
Sony RX10 II5/5+ +..82/1004.5/54/5 Jun 2015 1,299ebay.com
17.
 
Sony RX105/5+..80/1004.5/54.5/5 Oct 2013 1,299ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, 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: Sony A7R III vs Sony RX0

    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 A7R III Sony RX0
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Sony E mount lenses 24mm f/4.0
    Launch Date October 2017 August 2017
    Launch Price USD 3,199 USD 699
    Sensor Specs Sony A7R III Sony RX0
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor 1" Sensor
    Sensor Size 35.9 x 24.0 mm 13.2 x 8.8 mm
    Sensor Area 861.6 mm2 116.16 mm2
    Sensor Diagonal 43.2 mm 15.9 mm
    Crop Factor 1.0x 2.7x
    Sensor Resolution 42.2 Megapixels 15.4 Megapixels
    Image Resolution 7952 x 5304 pixels 4800 x 3200 pixels
    Pixel Pitch 4.52 μm 2.74 μm
    Pixel Density 4.90 MP/cm2 13.22 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 1080/60p Video
    ISO Setting 100 - 32,000 ISO 125 - 12,800 ISO
    ISO Boost 50 - 102,400 ISO no Enhancement
    Image Processor BIONZ X BIONZ X
    DXO Sensor Quality (score) 100 68
    DXO Color Depth (bits) 26.0 22.4
    DXO Dynamic Range (EV) 14.7 12.4
    DXO Low Light (ISO) 3523 548
    Screen Specs Sony A7R III Sony RX0
    Viewfinder Type Electronic viewfinder no viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 1.5inch
    LCD Resolution 1440k dots 230k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Sony A7R III Sony RX0
    Focus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s ..
    Continuous Shooting 10 shutter flaps/s 5.5 shutter flaps/s
    Electronic ShutterYESup to 1/32000s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationno handshake reduction
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium MS or SDXC cards mMS or mSDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support Single UHS-II UHS-I
    Connectivity Specs Sony A7R III Sony RX0
    External Flash Hotshoe no Hotshoe
    Studio Flash PC Sync socket no PC Sync
    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 no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Sony A7R III Sony RX0
    Environmental SealingWeathersealed bodyWaterproof body (10m)
    Battery Type Sony NP-FZ100 Sony NP-BJ1
    Battery Life (CIPA)650 shots per charge240 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)
    59 x 41 x 30 mm
    (2.3 x 1.6 x 1.2 in)
    Camera Weight 650 g (22.9 oz) 110 g (3.9 oz)
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    Check A7R III offers at
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    Check RX0 offers at
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