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Fujifilm GFX 100S vs Sony RX1R III

The Fujifilm GFX 100S and the Sony Cyber-shot DSC-RX1R III are two digital cameras that were officially introduced, respectively, in January 2021 and July 2025. The GFX 100S is a mirrorless interchangeable lens camera, while the RX1R III is a fixed lens compact. The cameras are based on a medium format (GFX 100S) and a full frame (RX1R III) sensor. The Fujifilm has a resolution of 101.8 megapixels, whereas the Sony 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
Fujifilm GFX 100S
versus
Sony RX1R III
Fujifilm GFX 100S   Sony RX1R III
Mirrorless system camera Fixed lens compact camera
Fujifilm G mount lenses 35mm f/2.0
101.8 MP – Medium Format sensor 60.2 MP – Full Frame sensor
4K/30p Video 4K/30p Video
ISO 100-12,800 (50 - 102,400) ISO 100-32,000 (50 - 102,400)
Electronic viewfinder (3690k dots) Electronic viewfinder (2360k dots)
3.2" LCD – 2360k dots 3.0" LCD – 2360k dots
Fully flexible touchscreen Fixed touchscreen
5 shutter flaps per second 5 shutter flaps per second
In-body stabilizationno shake reduction
Weathersealed bodyWeathersealed body
460 shots per battery charge300 shots per battery charge
150 x 104 x 87 mm, 900 g 113 x 68 x 88 mm, 498 g
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Check GFX 100S 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 Fujifilm GFX 100S 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 Fujifilm GFX 100S 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 successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.

Size Fujifilm GFX 100S vs Sony RX1R III
Compare GFX 100S versus RX1R III top
Comparison GFX 100S 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 (51 percent) than the Fujifilm GFX 100S. 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 GFX 100S is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the GFX 100S gets 460 shots out of its Fujifilm NP-W235 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. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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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 GFX 100S 150 mm 104 mm 87 mm 900 g 460 Y Jan 2021 US$ 5 999 amazon.com
2.
 
Sony RX1R III 113 mm 68 mm 88 mm 498 g 300 Y Jul 2025 US$ 5 099 amazon.com
3.
 
Canon R3 150 mm 143 mm 87 mm 1015 g 760 Y Sep 2021 US$ 5 999 amazon.com
4.
 
Fujifilm GFX 50R 161 mm 97 mm 66 mm 775 g 400 Y Sep 2018 US$ 4 499ebay.com
5.
 
Fujifilm GFX 50S 148 mm 94 mm 91 mm 740 g 400 Y Sep 2016 US$ 6 499ebay.com
6.
 
Fujifilm GFX 50S II 150 mm 104 mm 87 mm 900 g 440 Y Sep 2021 US$ 3 999 amazon.com
7.
 
Fujifilm GFX 100 156 mm 144 mm 75 mm 1320 g 800 Y May 2019 US$ 9 999ebay.com
8.
 
Fujifilm GFX 100 II 152 mm 117 mm 99 mm 1030 g 540 Y Sep 2023 US$ 7 499 amazon.com
9.
 
Fujifilm GFX 100S II 150 mm 104 mm 87 mm 883 g 530 Y May 2024 US$ 4 999 amazon.com
10.
 
Hasselblad X1D II 148 mm 97 mm 70 mm 766 g .. Y Jun 2019 US$ 5 749ebay.com
11.
 
Hasselblad X2D 100C 149 mm 106 mm 75 mm 895 g 420 Y Sep 2022 US$ 8 199 amazon.com
12.
 
Leica Q3 130 mm 80 mm 93 mm 743 g 350 Y May 2023 US$ 5 999 amazon.com
13.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 US$ 6 499 amazon.com
14.
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 US$ 1 699ebay.com
15.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 US$ 2 299ebay.com
16.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 US$ 2 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.

Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The RX1R III was launched at a lower price than the GFX 100S, 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.

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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Fujifilm GFX 100S features a medium format sensor and the Sony RX1R III a full frame sensor. The sensor area in the RX1R III is 41 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.79 and 1.0. The sensor in the GFX 100S has a native 4:3 aspect ratio, while the one in the RX1R III offers a 3:2 aspect.

Fujifilm GFX 100S and Sony RX1R III sensor measures

With 101.8MP, the GFX 100S offers a higher resolution than the RX1R III (60.2MP), but the GFX 100S nevertheless has the same individual pixel size (pixel pitch of 3.76μm) as the RX1R III due to its larger sensor. Moreover, the RX1R III is a much more recent model (by 4 years and 5 months) than the GFX 100S, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. 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 Fujifilm GFX 100S implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GFX 100S for good quality output (200 dots per inch) amounts to 58.2 x 43.7 inches or 147.9 x 110.9 cm, for very good quality (250 dpi) 46.6 x 34.9 inches or 118.3 x 88.8 cm, and for excellent quality (300 dpi) 38.8 x 29.1 inches or 98.6 x 74 cm. The corresponding values for the Sony RX1R III are 47.5 x 31.7 inches or 120.7 x 80.5 cm for good quality, 38 x 25.3 inches or 96.6 x 64.4 cm for very good quality, and 31.7 x 21.1 inches or 80.5 x 53.6 cm for excellent quality prints.

Unlike the RX1R III, the GFX 100S 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 Fujifilm GFX 100S has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 50-102400. The corresponding ISO settings for the Sony Cyber-shot DSC-RX1R 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.

GFX 100S versus RX1R III MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 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 GFX 100S Medium Format 101.8 11648 87364K/30p25.814.73391100
2.
 
Sony RX1R III Full Frame 60.2 9504 63364K/30p25.414.9341797
3.
 
Canon R3 Full Frame 24.0 6000 40006K/60p25.014.7408696
4.
 
Fujifilm GFX 50R Medium Format 51.1 8256 61921080/30p25.714.4316998
5.
 
Fujifilm GFX 50S Medium Format 51.1 8256 61921080/30p25.414.1297796
6.
 
Fujifilm GFX 50S II Medium Format 51.1 8256 61921080/30p25.914.83456100
7.
 
Fujifilm GFX 100 Medium Format 101.8 11648 87364K/30p25.714.5322799
8.
 
Fujifilm GFX 100 II Medium Format 101.8 11648 87368K/30p25.915.03651101
9.
 
Fujifilm GFX 100S II Medium Format 101.8 11648 87364K/30p25.915.13720101
10.
 
Hasselblad X1D II Medium Format 51.3 8272 62001080/25p25.714.5323499
11.
 
Hasselblad X2D 100C Medium Format 102.1 11656 8762none25.914.93550101
12.
 
Leica Q3 Full Frame 60.3 9528 63288K/30p25.414.7321696
13.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
14.
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
15.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
16.
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
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 are not only capable of taking still images, but can also record movies. 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 GFX 100S offers a substantially higher resolution than the one in the RX1R III (3690k vs 2360k dots). The adjacent table lists some of the other core features of the Fujifilm GFX 100S and Sony RX1R III along with similar information for a selection of comparators.

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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 GFX 100S3690 Y3.2 / 2360 full-flex Y 1/4000s 5.0/s n Y
2.
 
Sony RX1R III2360 n3.0 / 2360 fixed Y 1/4000s 5.0/s n n
3.
 
Canon R35760 Y3.2 / 4150 swivel Y 1/8000s 12.0/s n Y
4.
 
Fujifilm GFX 50R3690 n3.2 / 2360 tilting Y 1/4000s 3.0/s n n
5.
 
Fujifilm GFX 50Soptional Y3.2 / 2360 full-flex Y 1/4000s 3.0/s n n
6.
 
Fujifilm GFX 50S II3690 Y3.2 / 2360 full-flex Y 1/4000s 3.0/s n Y
7.
 
Fujifilm GFX 100optional Y3.2 / 2360 full-flex Y 1/4000s 5.0/s n Y
8.
 
Fujifilm GFX 100 II9440 Y3.2 / 2360 full-flex Y 1/4000s 8.0/s n Y
9.
 
Fujifilm GFX 100S II5760 Y3.2 / 2360 full-flex Y 1/4000s 7.0/s n Y
10.
 
Hasselblad X1D II3690 n3.6 / 2360 fixed Y 1/2000s 2.7/s n n
11.
 
Hasselblad X2D 100C5760 Y3.6 / 2360 tilting Y 1/4000s 3.3/s n Y
12.
 
Leica Q35760 n3.0 / 1840 tilting Y 1/2000s 15.0/s n Y
13.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 30.0/s n Y
14.
 
Sony A72400 n3.0 / 1230 tilting n 1/8000s 5.0/s n n
15.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
16.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
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.

One feature that is present on the GFX 100S, but is missing on the RX1R III is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

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 GFX 100S 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.

Concerning the storage of imaging data, both the GFX 100S and the RX1R III write their files to SDXC cards. The GFX 100S 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 Fujifilm GFX 100S 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.
 
Fujifilm GFX 100SYstereo / monoYYmicro3.2Y-Y
2.
 
Sony RX1R IIIYstereo / monoYYmicro3.2Y-Y
3.
 
Canon R3Ystereo / monoYYmicro3.2Y-Y
4.
 
Fujifilm GFX 50RYstereo / monoYYmicro3.0Y-Y
5.
 
Fujifilm GFX 50SYstereo / monoYYmicro3.0Y--
6.
 
Fujifilm GFX 50S IIYstereo / monoYYmicro3.2Y--
7.
 
Fujifilm GFX 100Ystereo / monoYYmicro3.1Y-Y
8.
 
Fujifilm GFX 100 IIYstereo / monoYYfull3.2Y-Y
9.
 
Fujifilm GFX 100S IIYstereo / monoYYmicro3.2Y-Y
10.
 
Hasselblad X1D IIYstereo / monoYY-3.0Y--
11.
 
Hasselblad X2D 100CYstereo / mono---3.2Y--
12.
 
Leica Q3Ystereo / mono--micro3.1Y-Y
13.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
14.
 
Sony A7Ystereo / monoYYmicro2.0YY-
15.
 
Sony A7RYstereo / monoYYmicro2.0YY-
16.
 
Sony A7SYstereo / monoYYmicro2.0YY-
17.
 
Sony RX1R IIYstereo / monoY-micro2.0YY-

Studio photographers will appreciate that the Fujifilm GFX 100S (unlike the RX1R III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the GFX 100S and the RX1R III are recent models that are part of the current product line-up. The GFX 100S replaced the earlier Fujifilm GFX 100, 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 Fujifilm and Sony websites.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Fujifilm GFX 100S and the Sony RX1R III? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Fujifilm GFX 100S:

  • More detail: Offers more megapixels (101.8 vs 60.2MP) with a 27% higher linear resolution.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3690k vs 2360k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.77x vs 0.7x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • 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 flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
  • Longer lasting: Can take more shots (460 versus 300) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • 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 January 2021).

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

  • Ready to shoot: Has an integrated lens, whereas the GFX 100S necessitates an extra lens.
  • More compact: Is smaller (113x68mm vs 150x104mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the GFX 100S).
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 4 years and 5 months of technical progress since the GFX 100S launch.

If the number of relative strengths (bullet points above) is taken as a guide, the GFX 100S is the clear winner of the match-up (17 : 5 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

GFX 100S 17:05 RX1R III

How about other alternatives? Do the specifications of the Fujifilm GFX 100S 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the GFX 100S 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 where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Fujifilm GFX 100S5/5+ +5/590/1005/55/5 Jan 2021 US$ 5 999 amazon.com
2.
 
Sony RX1R III............ Jul 2025 US$ 5 099 amazon.com
3.
 
Canon R35/5o4.5/5..5/54.5/5 Sep 2021 US$ 5 999 amazon.com
4.
 
Fujifilm GFX 50R5/5..5/584/1004.5/54.5/5 Sep 2018 US$ 4 499ebay.com
5.
 
Fujifilm GFX 50S....4.5/585/1005/54.5/5 Sep 2016 US$ 6 499ebay.com
6.
 
Fujifilm GFX 50S II5/5..5/587/100..5/5 Sep 2021 US$ 3 999 amazon.com
7.
 
Fujifilm GFX 1004.5/5+ +4.8/590/1005/54.5/5 May 2019 US$ 9 999ebay.com
8.
 
Fujifilm GFX 100 II5/5+5/5....4.5/5 Sep 2023 US$ 7 499 amazon.com
9.
 
Fujifilm GFX 100S II............ May 2024 US$ 4 999 amazon.com
10.
 
Hasselblad X1D II....4/5..4/54/5 Jun 2019 US$ 5 749ebay.com
11.
 
Hasselblad X2D 100C4/5..5/5...... Sep 2022 US$ 8 199 amazon.com
12.
 
Leica Q35/5..4.5/5....4.5/5 May 2023 US$ 5 999 amazon.com
13.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 US$ 6 499 amazon.com
14.
 
Sony A75/5+ +..80/1005/55/5 Oct 2013 US$ 1 699ebay.com
15.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 US$ 2 299ebay.com
16.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 US$ 2 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 above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and 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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Check GFX 100S price at
amazon.com
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Check RX1R III price at
amazon.com

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. 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 GFX 100S 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 Fujifilm GFX 100S Sony RX1R III
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Fujifilm G mount lenses 35mm f/2.0
    Launch Date January 2021 July 2025
    Launch Price USD 5,999 USD 5,099
    Sensor Specs Fujifilm GFX 100S Sony RX1R III
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format Medium Format Sensor Full Frame Sensor
    Sensor Size 43.8 x 32.9 mm 35.7 x 23.8 mm
    Sensor Area 1441.02 mm2 849.66 mm2
    Sensor Diagonal 54.8 mm 42.9 mm
    Crop Factor 0.79x 1.0x
    Sensor Resolution 101.8 Megapixels 60.2 Megapixels
    Image Resolution 11648 x 8736 pixels 9504 x 6336 pixels
    Pixel Pitch 3.76 μm 3.76 μm
    Pixel Density 7.06 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 - 12,800 ISO 100 - 32,000 ISO
    ISO Boost 50 - 102,400 ISO 50 - 102,400 ISO
    Image Processor X-Processor 4 BIONZ XR
    Screen Specs Fujifilm GFX 100S Sony RX1R III
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.77x 0.7x
    Viewfinder Resolution 3690k dots 2360k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 2360k dots 2360k dots
    LCD Attachment Fully flexible screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Fujifilm GFX 100S Sony RX1R III
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 5 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterup to 1/16000sup 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 SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support Dual UHS-II UHS-II
    Connectivity Specs Fujifilm GFX 100S 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 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
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Fujifilm GFX 100S Sony RX1R III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Fujifilm NP-W235 Sony NP-FW50
    Battery Life (CIPA)460 shots per charge300 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 150 x 104 x 87 mm
    (5.9 x 4.1 x 3.4 in)
    113 x 68 x 88 mm
    (4.4 x 2.7 x 3.5 in)
    Camera Weight 900 g (31.7 oz) 498 g (17.6 oz)
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