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Sony RX100 III vs A7R III

The Sony Cyber-shot DSC-RX100 III and the Sony Alpha A7R III are two digital cameras that were officially introduced, respectively, in May 2014 and October 2017. The RX100 III is a fixed lens compact, while the A7R III is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (RX100 III) and a full frame (A7R III) sensor. The RX100 III has a resolution of 20 megapixels, whereas the A7R III provides 42.2 MP.

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

Headline Specifications
Sony RX100 III
versus
Sony A7R III
Sony RX100 III   Sony A7R III
Fixed lens compact camera Mirrorless system camera
24-70mm f/1.8-2.8 Sony E mount lenses
20 MP – 1" sensor 42.2 MP – Full Frame sensor
1080/60p Video 4K/30p Video
ISO 100-12,800 (80 - 25,600) ISO 100-32,000 (50 - 102,400)
Electronic viewfinder (1440k dots) Electronic viewfinder (3686k dots)
3.0" LCD – 1229k dots 3.0" LCD – 1440k dots
Tilting screen (no touchscreen) Tilting touchscreen
10 shutter flaps per second 10 shutter flaps per second
Lens-based stabilizationIn-body stabilization
not weather sealedWeathersealed body
320 shots per battery charge650 shots per battery charge
102 x 58 x 41 mm, 290 g 127 x 96 x 74 mm, 650 g
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Check RX100 III offers at
ebay.com
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Check A7R III offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Cyber-shot DSC-RX100 III and the Sony Alpha A7R 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

An illustration of the physical size and weight of the Sony RX100 III and the Sony A7R III is provided in the side-by-side display below. 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 dimensions are rounded to the nearest millimeter.

Size Sony RX100 III vs Sony A7R III
Compare RX100 III versus A7R III top
Comparison RX100 III or A7R III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R III is considerably larger (106 percent) than the Sony RX100 III. It is noteworthy in this context that the A7R III is splash and dust-proof, while the RX100 III does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX100 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 RX100 III gets 320 shots out of its Sony NP-BX1 battery, while the A7R III can take 650 images on a single charge of its Sony NP-FZ100 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 RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799ebay.com
2.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
3.
 
Canon G5 X 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799ebay.com
4.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
5.
 
Panasonic FZ1000 137 mm 99 mm 131 mm 831 g 360 n Jun 2014 899ebay.com
6.
 
Sony ZV-1 II 106 mm 60 mm 47 mm 292 g 290 n May 2023 899 amazon.com
7.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
8.
 
Sony ZV-1 105 mm 60 mm 44 mm 294 g 260 n May 2020 799ebay.com
9.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
10.
 
Sony RX100 VII 102 mm 58 mm 43 mm 302 g 260 n Jul 2019 1,199 amazon.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 RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 999ebay.com
14.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
15.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999ebay.com
16.
 
Sony RX100 II 102 mm 58 mm 38 mm 281 g 350 n Jun 2013 749ebay.com
17.
 
Sony RX100 102 mm 58 mm 36 mm 240 g 330 n Jun 2012 649ebay.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 obviously take relative prices into account. 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 RX100 III was launched at a lower price than the A7R III, despite having a lens built in. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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.

Of the two cameras under consideration, the Sony RX100 III features an one-inch sensor and the Sony A7R III a full frame sensor. The sensor area in the A7R III is 643 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony RX100 III and Sony A7R III sensor measures

With 42.2MP, the A7R III offers a higher resolution than the RX100 III (20MP), but the A7R III nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 2.41μm for the RX100 III) due to its larger sensor. Moreover, the A7R III is a much more recent model (by 3 years and 5 months) than the RX100 III, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. 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 RX100 III 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 A7R III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the RX100 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 Cyber-shot DSC-RX100 III has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 80-25600. The corresponding ISO settings for the Sony Alpha A7R III are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

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.

RX100 III versus A7R III MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). Of the two cameras under consideration, the A7R III offers substantially better image quality than the RX100 III (overall score 33 points higher). The advantage is based on 3.6 bits higher color depth, 2.4 EV in additional dynamic range, and 2.8 stops in additional low light sensitivity. 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
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
2.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
3.
 
Canon G5 X 1-inch 20.0 5472 36481080/60p21.412.347162
4.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
5.
 
Panasonic FZ1000 1-inch 20.0 5472 36484K/30p22.111.751764
6.
 
Sony ZV-1 II 1-inch 20.0 5472 36484K/30p22.312.996567
7.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
8.
 
Sony ZV-1 1-inch 20.0 5472 36484K/30p22.212.666966
9.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
10.
 
Sony RX100 VII 1-inch 20.0 5472 36484K/30p21.812.441863
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 RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
14.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
15.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
16.
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367
17.
 
Sony RX100 1-inch 20.0 5472 36481080/60p22.612.439066
Note: DXO values in italics represent estimates based on sensor size and age.
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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, but the A7R III provides a better video resolution than the RX100 III. It can shoot movie footage at 4K/30p, while the RX100 III 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. The two cameras under review 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 RX100 III (3686k vs 1440k dots). The adjacent table lists some of the other core features of the Sony RX100 III and Sony A7R III along with similar information for a selection of comparators.

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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 RX100 III1440 n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
2.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
3.
 
Canon G5 X2360 n3.0 / 1040 swivel Y 1/2000s 5.9/s Y Y
4.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
5.
 
Panasonic FZ10002359 n3.0 / 921 swivel n 1/4000s 12.0/s Y Y
6.
 
Sony ZV-1 IInone n3.0 / 922 swivel Y 1/2000s 24.0/s n n
7.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
8.
 
Sony ZV-1none n3.0 / 922 swivel Y 1/2000s 24.0/s n n
9.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
10.
 
Sony RX100 VII2359 n3.0 / 921 tilting Y 1/2000s 90.0/s Y 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 RX100 V2359 n3.0 / 1229 tilting n 1/2000s 24.0/s Y Y
14.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
15.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
16.
 
Sony RX100 IIoptional n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
17.
 
Sony RX100none n3.0 / 1229 fixed n 1/2000s 10.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
padding

One difference between the cameras concerns the presence of an on-board flash. The RX100 III has one, while the A7R III does not. While the built-in flash of the RX100 III is not very powerful, it can at times be useful as a fill-in light.

The RX100 III has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the A7R III does not have a selfie-screen.

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, the A7R III is one of those camera that have an additional 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.

Concerning the storage of imaging data, both the RX100 III and the A7R III write their files to SDXC or Memory Stick PRO Duo cards. The A7R III features dual card slots, which can be very useful in case a memory card fails. In contrast, the RX100 III only has one slot. The A7R III supports UHS-II cards (on its first slot), while the RX100 III 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 Cyber-shot DSC-RX100 III and Sony Alpha A7R 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
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony RX100 III-stereo / mono--micro2.0YY-
2.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
3.
 
Canon G5 XYstereo / mono--mini2.0YY-
4.
 
Canon G7 X-stereo / mono--micro2.0YY-
5.
 
Panasonic FZ1000Ystereo / monoY-micro2.0YY-
6.
 
Sony ZV-1 IIYstereo / monoY-micro2.0Y-Y
7.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
8.
 
Sony ZV-1Ystereo / monoY-micro2.0Y-Y
9.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
10.
 
Sony RX100 VII-stereo / monoY-micro2.0YYY
11.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
12.
 
Sony A9Ystereo / monoYYmicro2.0YYY
13.
 
Sony RX100 V-stereo / mono--micro2.0YY-
14.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
15.
 
Sony RX100 IV-stereo / mono--micro2.0YY-
16.
 
Sony RX100 IIYstereo / mono--micro2.0YY-
17.
 
Sony RX100-stereo / mono--micro2.0---
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It is notable that the A7R III has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The RX100 III does not feature such a mic input.

Studio photographers will appreciate that the Sony A7R III (unlike the RX100 III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the RX100 III and the A7R III have been discontinued, but can regularly be found used on ebay. The RX100 III was replaced by the Sony RX100 IV, while the A7R III was followed by the Sony A7R IV. Further information on the features and operation of the RX100 III and A7R III can be found, respectively, in the Sony RX100 III Manual (free pdf) or the online Sony A7R III Manual.

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Review summary

So what is the bottom line? Which of the two cameras – the Sony RX100 III or the Sony A7R III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.


Advantages of the Sony Cyber-shot DSC-RX100 III:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Ready to shoot: Has a lens built-in, whereas the A7R III requires a separate lens.
  • More compact: Is smaller (102x58mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7R III).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been available for much longer (launched in May 2014).


Arguments in favor of the Sony Alpha A7R III:

  • More detail: Has more megapixels (42.2 vs 20MP), which boosts linear resolution by 45%.
  • 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 (33 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.6 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.8 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: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3686k vs 1440k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.59x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1229k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (650 versus 320) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • 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 wireless transfer: Supports Bluetooth for image sharing without cables.
  • 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).
  • More modern: Reflects 3 years and 5 months of technical progress since the RX100 III launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7R III is the clear winner of the contest (28 : 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 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.

RX100 III 08:28 A7R III

How about other alternatives? Do the specifications of the Sony RX100 III and the Sony A7R III place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the RX100 III or the A7R III. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major camera 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 RX100 III5/5+ +..82/1004.5/55/5 May 2014 799ebay.com
2.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
3.
 
Canon G5 X5/5+ +..78/1004.5/54.5/5 Oct 2015 799ebay.com
4.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
5.
 
Panasonic FZ10004/5+ +..82/1004.5/54.5/5 Jun 2014 899ebay.com
6.
 
Sony ZV-1 II4.5/5..3.5/583/1003.5/54.5/5 May 2023 899 amazon.com
7.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
8.
 
Sony ZV-14/5+4/585/1004/54.5/5 May 2020 799ebay.com
9.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
10.
 
Sony RX100 VII4.5/5..4/5..4/55/5 Jul 2019 1,199 amazon.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 RX100 V4.5/5+ +..83/1004/54.5/5 Oct 2016 999ebay.com
14.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
15.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999ebay.com
16.
 
Sony RX100 II5/5+ +..79/1004.5/54.5/5 Jun 2013 749ebay.com
17.
 
Sony RX1005/5+ +..78/1004/55/5 Jun 2012 649ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.

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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 use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Sony RX100 III vs Sony A7R 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 RX100 III Sony A7R III
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 24-70mm f/1.8-2.8 Sony E mount lenses
    Launch Date May 2014 October 2017
    Launch Price USD 799 USD 3,199
    Sensor Specs Sony RX100 III Sony A7R III
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format 1" Sensor Full Frame Sensor
    Sensor Size 13.2 x 8.8 mm 35.9 x 24.0 mm
    Sensor Area 116.16 mm2 861.6 mm2
    Sensor Diagonal 15.9 mm 43.2 mm
    Crop Factor 2.7x 1.0x
    Sensor Resolution 20 Megapixels 42.2 Megapixels
    Image Resolution 5472 x 3648 pixels 7952 x 5304 pixels
    Pixel Pitch 2.41 μm 4.52 μm
    Pixel Density 17.18 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 100 - 12,800 ISO 100 - 32,000 ISO
    ISO Boost 80 - 25,600 ISO 50 - 102,400 ISO
    Image Processor BIONZ X BIONZ X
    DXO Sensor Quality (score) 67 100
    DXO Color Depth (bits) 22.4 26.0
    DXO Dynamic Range (EV) 12.3 14.7
    DXO Low Light (ISO) 495 3523
    Screen Specs Sony RX100 III Sony A7R III
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.59x 0.78x
    Viewfinder Resolution 1440k dots 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1229k dots 1440k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Sony RX100 III Sony A7R III
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens-based stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium MS or SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Single UHS-II
    Connectivity Specs Sony RX100 III Sony A7R III
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Sony RX100 III Sony A7R III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Sony NP-BX1 Sony NP-FZ100
    Battery Life (CIPA)320 shots per charge650 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 102 x 58 x 41 mm
    (4.0 x 2.3 x 1.6 in)
    127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    Camera Weight 290 g (10.2 oz) 650 g (22.9 oz)
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