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Sony A1 II vs RX1R III

The Sony A1 II and the Sony Cyber-shot DSC-RX1R III are two digital cameras that were revealed to the public, respectively, in November 2024 and July 2025. The A1 II 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 A1 II has a resolution of 49.8 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 A1 II
versus
Sony RX1R III
Sony A1 II   Sony RX1R III
Mirrorless system camera Fixed lens compact camera
Sony E mount lenses 35mm f/2.0
49.8 MP – Full Frame sensor 60.2 MP – Full Frame sensor
8k/30p Video 4K/30p Video
ISO 100-32,000 (50 - 102,400) ISO 100-32,000 (50 - 102,400)
Electronic viewfinder (9437k dots) Electronic viewfinder (2360k dots)
3.2" LCD – 2100k dots 3.0" LCD – 2360k dots
Fully flexible touchscreen Fixed touchscreen
30 shutter flaps per second 5 shutter flaps per second
In-body stabilizationno shake reduction
Weathersealed bodyWeathersealed body
520 shots per battery charge300 shots per battery charge
136 x 97 x 83 mm, 743 g 113 x 68 x 88 mm, 498 g
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Check A1 II price at
amazon.com
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Check RX1R III price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Sony A1 II 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

An illustration of the physical size and weight of the Sony A1 II and the Sony RX1R 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 A1 II vs Sony RX1R III
Compare A1 II versus RX1R III top
Comparison A1 II 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 (42 percent) than the Sony A1 II. 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 A1 II 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 A1 II and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the A1 II gets 520 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 A1 II 136 mm 97 mm 83 mm 743 g 520 Y Nov 2024 EUR 7 499 amazon.com
2.
 
Sony RX1R III 113 mm 68 mm 88 mm 498 g 300 Y Jul 2025 EUR 4 899 amazon.com
3.
 
Fujifilm GFX 100RF 134 mm 90 mm 77 mm 735 g 820 Y Mar 2025 EUR 5 499 amazon.com
4.
 
Fujifilm X100V 128 mm 75 mm 53 mm 478 g 420 Y Feb 2020 EUR 1 499ebay.com
5.
 
Leica Q3 130 mm 80 mm 93 mm 743 g 350 Y May 2023 EUR 5 999 amazon.com
6.
 
Leica SL3 141 mm 108 mm 85 mm 854 g 320 Y Mar 2024 EUR 6 799 amazon.com
7.
 
Sigma fp L 113 mm 70 mm 45 mm 427 g 240 Y Mar 2021 EUR 2 299 amazon.com
8.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 EUR 7 299 amazon.com
9.
 
Sony A7C R 124 mm 71 mm 63 mm 520 g 520 Y Aug 2023 EUR 3 699 amazon.com
10.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 EUR 3 499ebay.com
11.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 EUR 3 499ebay.com
12.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 EUR 3 499 amazon.com
13.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 EUR 3 999ebay.com
14.
 
Sony A7R IVA 129 mm 96 mm 78 mm 665 g 670 Y Apr 2021 EUR 3 999 amazon.com
15.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 Y Oct 2022 EUR 4 499 amazon.com
16.
 
Sony A9 III 136 mm 97 mm 83 mm 702 g 530 Y Nov 2023 EUR 6 999 amazon.com
17.
 
Sony RX1R II 113 mm 65 mm 72 mm 507 g 220 n Oct 2015 EUR 3 499ebay.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. The RX1R III was launched at a lower price than the A1 II, 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 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.

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.

In terms of chip-set technology, the A1 II uses a more advanced image processing engine (Dual BIONZ XR) than the RX1R III (BIONZ XR), with benefits for noise reduction, color accuracy, and processing speed.

Sony A1 II 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 49.8 MP of the A1 II. 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 4.16μm for the A1 II). However, it should be noted that the RX1R III is a somewhat more recent model (by 7 months) than the A1 II, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage. 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 A1 II are 43.2 x 28.8 inches or 109.7 x 73.2 cm for good quality, 34.6 x 23 inches or 87.8 x 58.5 cm for very good quality, and 28.8 x 19.2 inches or 73.2 x 48.8 cm for excellent quality prints.

Unlike the RX1R III, the A1 II has the capacity to capture high quality composite images (YESMP) 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 A1 II 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.

In terms of underlying technology, the A1 II is build around a Stacked BSI-CMOS sensor, while the RX1R III uses a BSI-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.

A1 II versus RX1R III MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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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 A1 II Full Frame 49.8 8640 57608k/30p25.414.8336397
2.
 
Sony RX1R III Full Frame 60.2 9504 63364K/30p25.414.9341797
3.
 
Fujifilm GFX 100RF Medium Format 101.8 11648 87364K/30p25.915.13805101
4.
 
Fujifilm X100V APS-C 26.0 6240 41604K/30p24.213.6199684
5.
 
Leica Q3 Full Frame 60.3 9528 63288K/30p25.414.7321696
6.
 
Leica SL3 Full Frame 60.3 9520 63368K/30p25.414.8329597
7.
 
Sigma fp L Full Frame 60.2 9520 63284K/30p25.314.4300196
8.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
9.
 
Sony A7C R Full Frame 60.2 9504 63364K/60p25.414.7322796
10.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
11.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
12.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
13.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
14.
 
Sony A7R IVA Full Frame 60.2 9504 63364K/30p26.014.8334499
15.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
16.
 
Sony A9 III Full Frame 24.0 6000 40004K/120p25.414.7324396
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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the A1 II provides a higher video resolution than the RX1R III. It can shoot video footage at 8k/30p, while the RX1R III is limited to 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 A1 II offers a substantially higher resolution than the one in the RX1R III (9437k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Sony A1 II, the Sony RX1R III, and comparable 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 A1 II9437 n3.2 / 2100 full-flex Y 1/8000s 30.0/s n Y
2.
 
Sony RX1R III2360 n3.0 / 2360 fixed Y 1/4000s 5.0/s n n
3.
 
Fujifilm GFX 100RF5760 n3.2 / 2100 tilting Y 1/4000s 6.0/s n n
4.
 
Fujifilm X100V3690 n3.0 / 1620 tilting Y 1/4000s 11.0/s n n
5.
 
Leica Q35760 n3.0 / 1840 tilting Y 1/2000s 15.0/s n Y
6.
 
Leica SL35760 Y3.2 / 2333 tilting Y 1/8000s 5.0/s n Y
7.
 
Sigma fp Loptional n3.2 / 2100 fixed Y 1/8000s 10.0/s n n
8.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 30.0/s n Y
9.
 
Sony A7C R2360 n3.0 / 1037 swivel Y 1/4000s 8.0/s n Y
10.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
11.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
12.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
13.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7R IVA5760 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A7R V9440 n3.2 / 2100 full-flex Y 1/8000s 10.0/s n Y
16.
 
Sony A9 III9440 n3.2 / 2100 full-flex Y 1/80000s 120.0/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 A1 II 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 RX1R 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, 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 A1 II 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 A1 II writes its imaging data to CFexpress (type A) or SDXC cards, while the RX1R III uses SDXC cards. The A1 II 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.

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 A1 II 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 A1 IIYstereo / monoYYfull3.2Y-Y
2.
 
Sony RX1R IIIYstereo / monoYYmicro3.2Y-Y
3.
 
Fujifilm GFX 100RFYstereo / monoYYmicro3.2Y-Y
4.
 
Fujifilm X100VYstereo / monoY-micro3.1Y-Y
5.
 
Leica Q3Ystereo / mono--micro3.1Y-Y
6.
 
Leica SL3Ystereo / monoYYfull3.1Y-Y
7.
 
Sigma fp LYstereo / monoYYmicro3.2Y--
8.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
9.
 
Sony A7C RYstereo / monoYYmicro3.2Y-Y
10.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
11.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
12.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
13.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
14.
 
Sony A7R IVAYstereo / monoYYmicro3.2YYY
15.
 
Sony A7R VYstereo / monoYYfull3.2Y-Y
16.
 
Sony A9 IIIYstereo / monoYYfull3.2Y-Y
17.
 
Sony RX1R IIYstereo / monoY-micro2.0YY-

Studio photographers will appreciate that the Sony A1 II (unlike the RX1R III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the A1 II and the RX1R III are recent models that are part of the current product line-up. The A1 II replaced the earlier Sony A1, while the RX1R III followed on from the Sony RX1R 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.

Review summary

So how do things add up? Is the Sony A1 II better than the Sony RX1R III or vice versa? The listing below highlights the relative strengths of the two models.


Reasons to prefer the Sony A1 II:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better jpgs: Has a more modern image processing engine (Dual BIONZ XR vs BIONZ XR).
  • Better video: Provides higher definition movie capture (8k/30p vs 4K/30p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (9437k vs 2360k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.9x vs 0.7x).
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (30 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 (520 versus 300) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • 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 on the market for longer (launched in November 2024).


Arguments in favor of the Sony Cyber-shot DSC-RX1R III:

  • More detail: Has more megapixels (60.2 vs 49.8MP), which boosts linear resolution by 10%.
  • More detailed LCD: Has a higher resolution rear screen (2360k vs 2100k dots).
  • Ready to shoot: Has an integrated lens, whereas the A1 II necessitates an extra lens.
  • More compact: Is smaller (113x68mm vs 136x97mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the A1 II).
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Was introduced somewhat (7 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the A1 II is the clear winner of the match-up (17 : 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.

A1 II 17:07 RX1R III

How about other alternatives? Do the specifications of the Sony A1 II 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 incomplete and does no justice, for example, to the way the A1 II or the RX1R III 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 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 A1 II............ Nov 2024 EUR 7 499 amazon.com
2.
 
Sony RX1R III............ Jul 2025 EUR 4 899 amazon.com
3.
 
Fujifilm GFX 100RF............ Mar 2025 EUR 5 499 amazon.com
4.
 
Fujifilm X100V5/5+ +4.5/586/1005/54.5/5 Feb 2020 EUR 1 499ebay.com
5.
 
Leica Q35/5..4.5/5....4.5/5 May 2023 EUR 5 999 amazon.com
6.
 
Leica SL3....4.5/5....4.5/5 Mar 2024 EUR 6 799 amazon.com
7.
 
Sigma fp L4/5..4/5..4/54/5 Mar 2021 EUR 2 299 amazon.com
8.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 EUR 7 299 amazon.com
9.
 
Sony A7C R4/5..4/588/100..4/5 Aug 2023 EUR 3 699 amazon.com
10.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 EUR 3 499ebay.com
11.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 EUR 3 499ebay.com
12.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 EUR 3 499 amazon.com
13.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 EUR 3 999ebay.com
14.
 
Sony A7R IVA5/5+4.5/591/1004.5/55/5 Apr 2021 EUR 3 999 amazon.com
15.
 
Sony A7R V5/5+ +4.5/592/100.... Oct 2022 EUR 4 499 amazon.com
16.
 
Sony A9 III4.5/5....91/100.... Nov 2023 EUR 6 999 amazon.com
17.
 
Sony RX1R II5/5....82/100..4.5/5 Oct 2015 EUR 3 499ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time 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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Check A1 II price at
amazon.com
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Check RX1R III price at
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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 A1 II 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 A1 II Sony RX1R III
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Sony E mount lenses 35mm f/2.0
    Launch Date November 2024 July 2025
    Launch Price USD 6,499 USD 5,099
    Sensor Specs Sony A1 II Sony RX1R III
    Sensor Technology Stacked 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 49.8 Megapixels 60.2 Megapixels
    Image Resolution 8640 x 5760 pixels 9504 x 6336 pixels
    Pixel Pitch 4.16 μm 3.76 μm
    Pixel Density 5.78 MP/cm2 7.09 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 8k/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 Dual BIONZ XR BIONZ XR
    Screen Specs Sony A1 II Sony RX1R III
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.9x 0.7x
    Viewfinder Resolution 9437k dots 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 2100k dots 2360k dots
    LCD Attachment Fully flexible screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Sony A1 II 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 30 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterup to 1/32000sup 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 CFexA or SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support UHS-II UHS-II
    Connectivity Specs Sony A1 II Sony RX1R III
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.2 USB 3.2
    HDMI Port full 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
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Sony A1 II Sony RX1R III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Sony NP-FZ100 Sony NP-FW50
    Battery Life (CIPA)520 shots per charge300 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 136 x 97 x 83 mm
    (5.4 x 3.8 x 3.3 in)
    113 x 68 x 88 mm
    (4.4 x 2.7 x 3.5 in)
    Camera Weight 743 g (26.2 oz) 498 g (17.6 oz)
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    Check A1 II price at
    amazon.com
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    Check RX1R III price at
    amazon.com

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