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Sony A7R III vs RX1R III

The Sony Alpha A7R III and the Sony Cyber-shot DSC-RX1R III are two enthusiast cameras that were officially introduced, respectively, in October 2017 and July 2025. The A7R III is a mirrorless interchangeable lens camera, while the RX1R III is a fixed lens compact. Both cameras are equipped with a full frame sensor. The A7R III has a resolution of 42.2 megapixels, whereas the RX1R III provides 60.2 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 RX1R III
Sony A7R III   Sony RX1R III
Mirrorless system camera Fixed lens compact camera
Sony E mount lenses 35mm f/2.0
42.2 MP – Full Frame sensor 60.2 MP – Full Frame sensor
4K/30p Video 4K/30p Video
ISO 100-32,000 (50 - 102,400) ISO 100-32,000 (50 - 102,400)
Electronic viewfinder (3686k dots) Electronic viewfinder (2360k dots)
3.0" LCD – 1440k dots 3.0" LCD – 2360k dots
Tilting touchscreen Fixed touchscreen
10 shutter flaps per second 5 shutter flaps per second
In-body stabilizationno shake reduction
Weathersealed bodyWeathersealed body
650 shots per battery charge300 shots per battery charge
127 x 96 x 74 mm, 650 g 113 x 68 x 88 mm, 498 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-RX1R III? 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 physical size and weight of the Sony A7R III and the Sony RX1R III are illustrated 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 size dimensions are rounded to the nearest millimeter.

Size Sony A7R III vs Sony RX1R III
Compare A7R III versus RX1R III top
Comparison A7R III or RX1R III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX1R III is considerably smaller (37 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.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX1R III 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 RX1R III can take 300 images on a single charge of its Sony NP-FW50 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. 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 US$ 3 199ebay.com
2.
 
Sony RX1R III 113 mm 68 mm 88 mm 498 g 300 Y Jul 2025 US$ 5 099 amazon.com
3.
 
Leica Q3 130 mm 80 mm 93 mm 743 g 350 Y May 2023 US$ 5 999 amazon.com
4.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 US$ 3 399ebay.com
5.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 US$ 6 499 amazon.com
6.
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 US$ 1 699ebay.com
7.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 US$ 1 999 amazon.com
8.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 US$ 2 299ebay.com
9.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 US$ 3 199ebay.com
10.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 US$ 3 199 amazon.com
11.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 US$ 3 499ebay.com
12.
 
Sony A7R IVA 129 mm 96 mm 78 mm 665 g 670 Y Apr 2021 US$ 3 499 amazon.com
13.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 Y Oct 2022 US$ 3 899 amazon.com
14.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 US$ 2 499ebay.com
15.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 US$ 3 499 amazon.com
16.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 US$ 4 499ebay.com
17.
 
Sony RX1R II 113 mm 65 mm 72 mm 507 g 220 n Oct 2015 US$ 3 299ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. 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. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.

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. 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 more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the RX1R III is 1 percent smaller. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Technology-wise, the RX1R III uses a more advanced image processing engine (BIONZ XR) than the A7R III (BIONZ X), with benefits for noise reduction, color accuracy, and processing speed.

Sony A7R III and Sony RX1R III sensor measures

Despite having a slightly smaller sensor, the RX1R III offers a higher resolution of 60.2 megapixels, compared with 42.2 MP of the A7R III. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 4.52μm for the A7R III). However, it should be noted that the RX1R III is much more recent (by 7 years and 8 months) than the A7R III, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Sony RX1R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the RX1R III for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 cm. The corresponding values for the Sony A7R III are 39.8 x 26.5 inches or 101 x 67.4 cm for good quality, 31.8 x 21.2 inches or 80.8 x 53.9 cm for very good quality, and 26.5 x 17.7 inches or 67.3 x 44.9 cm for excellent quality prints.

Unlike the RX1R III, 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 Sony Cyber-shot DSC-RX1R III offers exactly the same ISO settings.

Technology-wise, both cameras are equipped with BSI-CMOS (Backside Illuminated Complementary Metal–Oxide–Semiconductor) sensors. 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 RX1R III MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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
  empty 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 RX1R III Full Frame 60.2 9504 63364K/30p25.414.9341797
3.
 
Leica Q3 Full Frame 60.3 9528 63288K/30p25.414.7321696
4.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
5.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
6.
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
7.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
8.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
9.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
10.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
11.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
12.
 
Sony A7R IVA Full Frame 60.2 9504 63364K/30p26.014.8334499
13.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
14.
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
15.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
16.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
17.
 
Sony RX1R II Full Frame 42.2 7952 53041080/60p25.813.9320497
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. 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).

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the A7R III offers a substantially higher resolution than the one in the RX1R III (3686k vs 2360k dots). The table below summarizes some of the other core capabilities of the Sony A7R III and Sony RX1R III in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty 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 RX1R III2360 n3.0 / 2360 fixed Y 1/4000s 5.0/s n n
3.
 
Leica Q35760 n3.0 / 1840 tilting Y 1/2000s 15.0/s n Y
4.
 
Nikon Z73690 Y3.2 / 2100 tilting Y 1/8000s 9.0/s n Y
5.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 30.0/s n Y
6.
 
Sony A72400 n3.0 / 1230 tilting n 1/8000s 5.0/s n n
7.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
8.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
9.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
10.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
11.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
12.
 
Sony A7R IVA5760 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
13.
 
Sony A7R V9440 n3.2 / 2100 full-flex Y 1/8000s 10.0/s n Y
14.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
15.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
16.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
17.
 
Sony RX1R II2360 n3.0 / 1229 tilting n 1/4000s 5.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

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 and the Sony RX1R III both have 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 RX1R III uses SDXC cards. The A7R III features dual card slots, which can be very useful in case a memory card fails. In contrast, the RX1R III only has one slot. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 MB/s (the second slot of the A7R III supports only UHS-I, though).

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-RX1R III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty 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 RX1R IIIYstereo / monoYYmicro3.2Y-Y
3.
 
Leica Q3Ystereo / mono--micro3.1Y-Y
4.
 
Nikon Z7Ystereo / monoYYmicro3.1Y-Y
5.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
6.
 
Sony A7Ystereo / monoYYmicro2.0YY-
7.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
8.
 
Sony A7RYstereo / monoYYmicro2.0YY-
9.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
10.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
11.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
12.
 
Sony A7R IVAYstereo / monoYYmicro3.2YYY
13.
 
Sony A7R VYstereo / monoYYfull3.2Y-Y
14.
 
Sony A7SYstereo / monoYYmicro2.0YY-
15.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
16.
 
Sony A9Ystereo / monoYYmicro2.0YYY
17.
 
Sony RX1R IIYstereo / monoY-micro2.0YY-

Studio photographers will appreciate that the Sony A7R III (unlike the RX1R III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The RX1R III is a recent model that features in the current product line-up of Sony. In contrast, the A7R III has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A7R III was succeeded by the Sony A7R IV. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Sony website.

Review summary

So what is the bottom line? Is there a clear favorite between the Sony A7R III and the Sony RX1R III? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.


Advantages of the Sony Alpha A7R III:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3686k vs 2360k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.7x).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
  • More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
  • Longer lasting: Can take more shots (650 versus 300) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • 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.
  • More heavily discounted: Has been available for much longer (launched in October 2017).


Reasons to prefer the Sony Cyber-shot DSC-RX1R III:

  • More detail: Has more megapixels (60.2 vs 42.2MP), which boosts linear resolution by 19%.
  • Better jpgs: Has a more modern image processing engine (BIONZ XR vs BIONZ X).
  • More detailed LCD: Has a higher resolution rear screen (2360k vs 1440k dots).
  • Ready to shoot: Has an integrated lens, whereas the A7R III necessitates an extra lens.
  • More compact: Is smaller (113x68mm 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).
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 3.1).
  • More modern: Reflects 7 years and 8 months of technical progress since the A7R III launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A7R III is the clear winner of the match-up (13 : 8 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

A7R III 13:08 RX1R III

How about other alternatives? Do the specifications of the Sony A7R III and the Sony RX1R III 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the A7R III or the RX1R III. 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 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 (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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 US$ 3 199ebay.com
2.
 
Sony RX1R III............ Jul 2025 US$ 5 099 amazon.com
3.
 
Leica Q35/5..4.5/5....4.5/5 May 2023 US$ 5 999 amazon.com
4.
 
Nikon Z75/5+4.8/589/1004.5/55/5 Aug 2018 US$ 3 399ebay.com
5.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 US$ 6 499 amazon.com
6.
 
Sony A75/5+ +..80/1005/55/5 Oct 2013 US$ 1 699ebay.com
7.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 US$ 1 999 amazon.com
8.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 US$ 2 299ebay.com
9.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 US$ 3 199ebay.com
10.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 US$ 3 199 amazon.com
11.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 US$ 3 499ebay.com
12.
 
Sony A7R IVA5/5+4.5/591/1004.5/55/5 Apr 2021 US$ 3 499 amazon.com
13.
 
Sony A7R V5/5+ +4.5/592/100.... Oct 2022 US$ 3 899 amazon.com
14.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 US$ 2 499ebay.com
15.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 US$ 3 499 amazon.com
16.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 US$ 4 499ebay.com
17.
 
Sony RX1R II5/5....82/100..4.5/5 Oct 2015 US$ 3 299ebay.com
Note: (+ +) 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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, 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.

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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes 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 A7R III vs Sony RX1R III

    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 RX1R III
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Sony E mount lenses 35mm f/2.0
    Launch Date October 2017 July 2025
    Launch Price USD 3,199 USD 5,099
    Sensor Specs Sony A7R III Sony RX1R III
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format Full Frame Sensor Full Frame Sensor
    Sensor Size 35.9 x 24.0 mm 35.7 x 23.8 mm
    Sensor Area 861.6 mm2 849.66 mm2
    Sensor Diagonal 43.2 mm 42.9 mm
    Crop Factor 1.0x 1.0x
    Sensor Resolution 42.2 Megapixels 60.2 Megapixels
    Image Resolution 7952 x 5304 pixels 9504 x 6336 pixels
    Pixel Pitch 4.52 μm 3.76 μm
    Pixel Density 4.90 MP/cm2 7.09 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 100 - 32,000 ISO 100 - 32,000 ISO
    ISO Boost 50 - 102,400 ISO 50 - 102,400 ISO
    Image Processor BIONZ X BIONZ XR
    DXO Sensor Quality (score) 100 ..
    DXO Color Depth (bits) 26.0 ..
    DXO Dynamic Range (EV) 14.7 ..
    DXO Low Light (ISO) 3523 ..
    Screen Specs Sony A7R III Sony RX1R III
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.78x 0.7x
    Viewfinder Resolution 3686k dots 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1440k dots 2360k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Sony A7R III Sony RX1R III
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 10 shutter flaps/s 5 shutter flaps/s
    Electronic ShutterYESup to 1/8000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationno handshake reduction
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium MS or SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support Single UHS-II UHS-II
    Connectivity Specs Sony A7R III Sony RX1R III
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.1 USB 3.2
    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 no NFC
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Sony A7R III Sony RX1R III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Sony NP-FZ100 Sony NP-FW50
    Battery Life (CIPA)650 shots per charge300 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)
    113 x 68 x 88 mm
    (4.4 x 2.7 x 3.5 in)
    Camera Weight 650 g (22.9 oz) 498 g (17.6 oz)
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