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Fujifilm X-A3 vs Sony A7R III

The Fujifilm X-A3 and the Sony Alpha A7R III are two digital cameras that were officially introduced, respectively, in August 2016 and October 2017. Both the X-A3 and the A7R III are mirrorless interchangeable lens cameras that are based on an APS-C (X-A3) and a full frame (A7R III) sensor. The Fujifilm has a resolution of 24 megapixels, whereas the Sony 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
Fujifilm X-A3
versus
Sony A7R III
Fujifilm X-A3   Sony A7R III
Mirrorless system camera Mirrorless system camera
Fujifilm X mount lenses Sony E mount lenses
24 MP – APS-C sensor 42.2 MP – Full Frame sensor
1080/60p Video 4K/30p Video
ISO 200-6,400 (100 - 25,600) ISO 100-32,000 (50 - 102,400)
No viewfinder, LCD framing Electronic viewfinder (3686k dots)
3.0" LCD – 1040k dots 3.0" LCD – 1440k dots
Tilting touchscreen Tilting touchscreen
6 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
410 shots per battery charge650 shots per battery charge
117 x 67 x 40 mm, 339 g 127 x 96 x 74 mm, 650 g
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Check X-A3 offers at
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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 Fujifilm X-A3 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

The physical size and weight of the Fujifilm X-A3 and the Sony A7R III are illustrated 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 size dimensions are rounded to the nearest millimeter.

The X-A3 can be obtained in three different colors (silver, brown, pink), while the A7R III is only available in black.

Size Fujifilm X-A3 vs Sony A7R III
Compare X-A3 versus A7R III top
Comparison X-A3 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 (56 percent) than the Fujifilm X-A3. Moreover, the A7R III is substantially heavier (92 percent) than the X-A3. It is noteworthy in this context that the A7R III is splash and dust-proof, while the X-A3 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Fujinon X Lens Catalog (X-A3) and the Sony FE Lens Catalog (A7R III). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the X-A3 gets 410 shots out of its Fujifilm NP-W126S 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 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.
 
Fujifilm X-A3 117 mm 67 mm 40 mm 339 g 410 n Aug 2016 US$ 399ebay.com
2.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 US$ 3 199ebay.com
3.
 
Fujifilm X-A1 117 mm 67 mm 39 mm 330 g 350 n Sep 2013 US$ 399ebay.com
4.
 
Fujifilm X-A2 117 mm 67 mm 40 mm 350 g 410 n Jan 2015 US$ 399ebay.com
5.
 
Fujifilm X-A5 117 mm 68 mm 40 mm 361 g 450 n Jan 2018 US$ 399ebay.com
6.
 
Fujifilm X-A7 119 mm 68 mm 41 mm 320 g 440 n Sep 2019 US$ 499ebay.com
7.
 
Fujifilm X-A10 117 mm 67 mm 40 mm 331 g 410 n Dec 2016 US$ 399ebay.com
8.
 
Fujifilm X-E3 121 mm 74 mm 43 mm 337 g 350 n Sep 2017 US$ 899ebay.com
9.
 
Fujifilm X-T10 118 mm 83 mm 41 mm 381 g 350 n May 2015 US$ 799ebay.com
10.
 
Fujifilm X-T20 118 mm 83 mm 41 mm 383 g 350 n Jan 2017 US$ 899ebay.com
11.
 
Fujifilm X-T30 118 mm 83 mm 47 mm 383 g 380 n Feb 2019 US$ 899ebay.com
12.
 
Fujifilm X-T200 121 mm 84 mm 55 mm 370 g 270 n Jan 2020 US$ 699ebay.com
13.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 US$ 1 999 amazon.com
14.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 US$ 3 199ebay.com
15.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 US$ 3 199 amazon.com
16.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 US$ 3 499ebay.com
17.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 US$ 4 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 X-A3 was launched at a markedly lower price (by 88 percent) than the A7R III, which puts it into a different market segment. 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 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.

Of the two cameras under consideration, the Fujifilm X-A3 features an APS-C sensor and the Sony A7R III a full frame sensor. The sensor area in the A7R III is 134 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Fujifilm X-A3 and Sony A7R III sensor measures

With 42.2MP, the A7R III offers a higher resolution than the X-A3 (24MP), but the A7R III nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 3.92μm for the X-A3) due to its larger sensor. Moreover, the A7R III is a somewhat more recent model (by 1 year and 2 months) than the X-A3, and its sensor might 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 Fujifilm X-A3 are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 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 X-A3, 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 Fujifilm X-A3 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-25600. 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.

In terms of underlying technology, the X-A3 is build around a CMOS sensor, while the A7R 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.

X-A3 versus A7R 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.
 
Fujifilm X-A3 APS-C 24.0 6000 40001080/60p23.813.1166481
2.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
3.
 
Fujifilm X-A1 APS-C 16.0 4896 32641080/30p23.412.6139076
4.
 
Fujifilm X-A2 APS-C 16.0 4896 32641080/30p23.612.8151579
5.
 
Fujifilm X-A5 APS-C 24.0 6000 40004K/15p24.013.3180082
6.
 
Fujifilm X-A7 APS-C 24.0 6000 40004K/30p24.113.6195584
7.
 
Fujifilm X-A10 APS-C 16.0 4896 32641080/30p23.913.2169181
8.
 
Fujifilm X-E3 APS-C 24.0 6000 40004K/30p23.913.3176482
9.
 
Fujifilm X-T10 APS-C 16.0 4896 32641080/60p23.712.9154679
10.
 
Fujifilm X-T20 APS-C 24.0 6000 40004K/30p23.913.2170481
11.
 
Fujifilm X-T30 APS-C 26.0 6240 41604K/30p24.113.5189583
12.
 
Fujifilm X-T200 APS-C 24.0 6000 40004K/30p24.113.6199184
13.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
14.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
15.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
17.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
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 A7R III provides a better video resolution than the X-A3. It can shoot movie footage at 4K/30p, while the Fujifilm is limited to 1080/60p.

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Feature comparison

Beyond 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 X-A3 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Fujifilm X-A3 and Sony A7R 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.
 
Fujifilm X-A3none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
2.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
3.
 
Fujifilm X-A1none n3.0 / 920 tilting n 1/4000s 5.6/s Y n
4.
 
Fujifilm X-A2none n3.0 / 920 tilting n 1/4000s 5.6/s Y n
5.
 
Fujifilm X-A5none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
6.
 
Fujifilm X-A7none n3.5 / 2760 swivel Y 1/4000s 6.0/s Y n
7.
 
Fujifilm X-A10none n3.0 / 1040 tilting n 1/4000s 6.0/s Y n
8.
 
Fujifilm X-E32360 n3.0 / 1040 fixed Y 1/4000s 8.0/s n n
9.
 
Fujifilm X-T102360 n3.0 / 920 tilting n 1/4000s 8.0/s Y n
10.
 
Fujifilm X-T202360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y n
11.
 
Fujifilm X-T302360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y n
12.
 
Fujifilm X-T2002360 n3.5 / 2780 swivel Y 1/4000s 8.0/s Y n
13.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
15.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
17.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The X-A3 has one, while the A7R III does not. While the built-in flash of the X-A3 is not very powerful, it can at times be useful as a fill-in light.

The X-A3 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, 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 Fujifilm X-A3 and the Sony A7R 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 X-A3 writes its imaging data to SDXC cards, while the A7R III uses 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 X-A3 only has one slot. The A7R III supports UHS-II cards (on its first slot), while the X-A3 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 Fujifilm X-A3 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
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Fujifilm X-A3Ystereo / mono--micro2.0Y--
2.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
3.
 
Fujifilm X-A1Ystereo / mono--mini2.0Y--
4.
 
Fujifilm X-A2Ystereo / mono--mini2.0Y--
5.
 
Fujifilm X-A5Ystereo / monoY-micro2.0Y-Y
6.
 
Fujifilm X-A7Ystereo / monoY-micro2.0Y-Y
7.
 
Fujifilm X-A10-stereo / mono--micro2.0Y--
8.
 
Fujifilm X-E3Ystereo / monoY-micro2.0Y-Y
9.
 
Fujifilm X-T10Ystereo / monoY-micro2.0Y--
10.
 
Fujifilm X-T20Ystereo / monoY-micro2.0Y--
11.
 
Fujifilm X-T30Ystereo / monoY-micro3.1Y-Y
12.
 
Fujifilm X-T200Ystereo / monoYYmicro3.1Y-Y
13.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
14.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
15.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
16.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
17.
 
Sony A9Ystereo / monoYYmicro2.0YYY

It is notable that the A7R III has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The X-A3 lacks such a headphone port.

Studio photographers will appreciate that the Sony A7R III (unlike the X-A3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the X-A3 and the A7R III have been discontinued, but can regularly be found used on ebay. The X-A3 was replaced by the Fujifilm X-A5, while the A7R III was followed by the Sony A7R IV. Further information on the features and operation of the X-A3 and A7R III can be found, respectively, in the Fujifilm X-A3 Manual (free pdf) or the online Sony A7R III Manual.

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Review summary

So what is the bottom line? Is there a clear favorite between the Fujifilm X-A3 and the Sony A7R III? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Fujifilm X-A3:

  • 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.
  • More compact: Is smaller (117x67mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 311g or 48 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (88 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in August 2016).

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Reasons to prefer the Sony Alpha A7R III:

  • More detail: Has more megapixels (42.2 vs 24MP), which boosts linear resolution by 33%.
  • 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: Is equipped with a larger and more technologically advanced sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • 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.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (650 versus 410) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • 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.
  • 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: Was introduced somewhat (1 year and 2 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the A7R III is the clear winner of the contest (25 : 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 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.

X-A3 07:25 A7R III

How about other alternatives? Do the specifications of the Fujifilm X-A3 and the Sony A7R III place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 X-A3 or the A7R 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.
 
Fujifilm X-A3......74/1004.5/54/5 Aug 2016 US$ 399ebay.com
2.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 US$ 3 199ebay.com
3.
 
Fujifilm X-A1........4.5/54.5/5 Sep 2013 US$ 399ebay.com
4.
 
Fujifilm X-A24/5......4.5/54.5/5 Jan 2015 US$ 399ebay.com
5.
 
Fujifilm X-A5..+4.1/5..4/53.5/5 Jan 2018 US$ 399ebay.com
6.
 
Fujifilm X-A73/5..3.5/581/1004/53.5/5 Sep 2019 US$ 499ebay.com
7.
 
Fujifilm X-A10........4/54/5 Dec 2016 US$ 399ebay.com
8.
 
Fujifilm X-E34.5/5+4.5/584/1004.5/54.5/5 Sep 2017 US$ 899ebay.com
9.
 
Fujifilm X-T104.5/5+ +..80/1005/55/5 May 2015 US$ 799ebay.com
10.
 
Fujifilm X-T205/5+ +5/582/1005/54.5/5 Jan 2017 US$ 899ebay.com
11.
 
Fujifilm X-T305/5+ +5/584/1004.5/54.5/5 Feb 2019 US$ 899ebay.com
12.
 
Fujifilm X-T2003.5/5..4/582/1004/54.5/5 Jan 2020 US$ 699ebay.com
13.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 US$ 1 999 amazon.com
14.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 US$ 3 199ebay.com
15.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 US$ 3 199 amazon.com
16.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 US$ 3 499ebay.com
17.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 US$ 4 499ebay.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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Check X-A3 offers at
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Check A7R III offers 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 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: Fujifilm X-A3 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 Fujifilm X-A3 Sony A7R III
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Fujifilm X mount lenses Sony E mount lenses
    Launch Date August 2016 October 2017
    Launch Price USD 399 USD 3,199
    Sensor Specs Fujifilm X-A3 Sony A7R III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.5 x 15.7 mm 35.9 x 24.0 mm
    Sensor Area 368.95 mm2 861.6 mm2
    Sensor Diagonal 28.3 mm 43.2 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 24 Megapixels 42.2 Megapixels
    Image Resolution 6000 x 4000 pixels 7952 x 5304 pixels
    Pixel Pitch 3.92 μm 4.52 μm
    Pixel Density 6.50 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 200 - 6,400 ISO 100 - 32,000 ISO
    ISO Boost 100 - 25,600 ISO 50 - 102,400 ISO
    DXO Sensor Quality (score) .. 100
    DXO Color Depth (bits) .. 26.0
    DXO Dynamic Range (EV) .. 14.7
    DXO Low Light (ISO) .. 3523
    Screen Specs Fujifilm X-A3 Sony A7R III
    Viewfinder Type no viewfinder Electronic 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 3.0inch
    LCD Resolution 1040k dots 1440k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Fujifilm X-A3 Sony A7R III
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 6 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterup to 1/32000sYES
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium 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 Fujifilm X-A3 Sony A7R III
    External Flash 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 no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Fujifilm X-A3 Sony A7R III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Fujifilm NP-W126S Sony NP-FZ100
    Battery Life (CIPA)410 shots per charge650 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 117 x 67 x 40 mm
    (4.6 x 2.6 x 1.6 in)
    127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    Camera Weight 339 g (12.0 oz) 650 g (22.9 oz)
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