Fujifilm GFX 100RF vs Sony RX1R III

The Fujifilm GFX 100RF and the Sony Cyber-shot DSC-RX1R III are two enthusiast cameras that were revealed to the public, respectively, in March 2025 and July 2025. Both the GFX 100RF and the RX1R III are fixed lens compact cameras that are based on a medium format (GFX 100RF) 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 100RF		Sony RX1R III
Fixed lens compact camera		Fixed lens compact camera
28mm f/4.0		35mm f/2.0
101.8 MP – Medium Format sensor		60.2 MP – Full Frame sensor
4K/30p Video		4K/30p Video
ISO 80-12,800 (40 - 102,400)		ISO 100-32,000 (50 - 102,400)
Electronic viewfinder (5760k dots)		Electronic viewfinder (2360k dots)
3.2" LCD – 2100k dots		3.0" LCD – 2360k dots
Tilting touchscreen		Fixed touchscreen
6 shutter flaps per second		5 shutter flaps per second
Weathersealed body		Weathersealed body
820 shots per battery charge		300 shots per battery charge
134 x 90 x 77 mm, 735 g		113 x 68 x 88 mm, 498 g

Check GFX 100RF price at
amazon.com
Check RX1R III price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm GFX 100RF 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.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Fujifilm GFX 100RF and the Sony RX1R III. 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.

The GFX 100RF can be obtained in two different colors (black, silver), while the RX1R III is only available in black.

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 (36 percent) than the Fujifilm GFX 100RF. Moreover, the RX1R III is markedly lighter (32 percent) than the GFX 100RF. 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.

Concerning battery life, the GFX 100RF gets 820 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 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.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Fujifilm GFX 100RF	134 mm	90 mm	77 mm	735 g	820	Y	Mar 2025	US$ 4 899	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 R5 C	142 mm	101 mm	111 mm	770 g	320	Y	Jan 2022	US$ 4 499	amazon.com
4.		Fujifilm GFX 50R	161 mm	97 mm	66 mm	775 g	400	Y	Sep 2018	US$ 4 499	ebay.com
5.		Fujifilm GFX 100S II	150 mm	104 mm	87 mm	883 g	530	Y	May 2024	US$ 4 999	amazon.com
6.		Fujifilm X100V	128 mm	75 mm	53 mm	478 g	420	Y	Feb 2020	US$ 1 399	ebay.com
7.		Fujifilm X100VI	128 mm	75 mm	55 mm	521 g	450	Y	Feb 2024	US$ 1 599	amazon.com
8.		Hasselblad X1D II	148 mm	97 mm	70 mm	766 g	..	Y	Jun 2019	US$ 5 749	ebay.com
9.		Leica Q2	130 mm	80 mm	92 mm	718 g	370	Y	Mar 2019	US$ 4 999	amazon.com
10.		Leica Q3	130 mm	80 mm	93 mm	743 g	350	Y	May 2023	US$ 5 999	amazon.com
11.		Pentax WG-8	118 mm	66 mm	33 mm	242 g	340	Y	Jun 2024	US$ 399	amazon.com
12.		Sigma fp L	113 mm	70 mm	45 mm	427 g	240	Y	Mar 2021	US$ 2 499	amazon.com
13.		Sony RX1R II	113 mm	65 mm	72 mm	507 g	220	n	Oct 2015	US$ 3 299	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The GFX 100RF was somewhat cheaper (by 4 percent) than the RX1R III at launch, but both cameras fall into the same price category. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 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 100RF 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 100RF has a native 4:3 aspect ratio, while the one in the RX1R III offers a 3:2 aspect.

With 101.8MP, the GFX 100RF offers a higher resolution than the RX1R III (60.2MP), but the GFX 100RF 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 somewhat more recent model (by 3 months) than the GFX 100RF, and its sensor might have benefitted from technological advances during this time that further 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 100RF implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GFX 100RF 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.

The Fujifilm GFX 100RF has a native sensitivity range from ISO 80 to ISO 12800, which can be extended to ISO 40-102400. 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.

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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Fujifilm GFX 100RF	Medium Format	101.8	11648	8736	4K/30p	25.9	15.1	3805	101
2.		Sony RX1R III	Full Frame	60.2	9504	6336	4K/30p	25.4	14.9	3417	97
3.		Canon R5 C	Full Frame	44.8	8192	5464	8k/60p	25.4	14.5	3082	96
4.		Fujifilm GFX 50R	Medium Format	51.1	8256	6192	1080/30p	25.7	14.4	3169	98
5.		Fujifilm GFX 100S II	Medium Format	101.8	11648	8736	4K/30p	25.9	15.1	3720	101
6.		Fujifilm X100V	APS-C	26.0	6240	4160	4K/30p	24.2	13.6	1996	84
7.		Fujifilm X100VI	APS-C	39.8	7728	5152	6.2K/30p	24.3	14.1	2397	86
8.		Hasselblad X1D II	Medium Format	51.3	8272	6200	1080/25p	25.7	14.5	3234	99
9.		Leica Q2	Full Frame	46.7	8368	5584	4K/30p	26.4	13.5	2491	96
10.		Leica Q3	Full Frame	60.3	9528	6328	8K/30p	25.4	14.7	3216	96
11.		Pentax WG-8	1/2.3	20.2	5184	3888	4K/30p	20.9	12.8	1626	54
12.		Sigma fp L	Full Frame	60.2	9520	6328	4K/30p	25.3	14.4	3001	96
13.		Sony RX1R II	Full Frame	42.2	7952	5304	1080/60p	25.8	13.9	3204	97
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 also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (4K/30p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the GFX 100RF offers a substantially higher resolution than the one in the RX1R III (5760k vs 2360k dots). The adjacent table lists some of the other core features of the Fujifilm GFX 100RF and Sony RX1R III along with similar information for a selection of comparators.

Core Features

		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 100RF	5760	n	3.2 / 2100	tilting	Y	1/4000s	6.0/s	n	n
2.		Sony RX1R III	2360	n	3.0 / 2360	fixed	Y	1/4000s	5.0/s	n	n
3.		Canon R5 C	5760	Y	3.2 / 2100	swivel	Y	1/8000s	12.0/s	n	n
4.		Fujifilm GFX 50R	3690	n	3.2 / 2360	tilting	Y	1/4000s	3.0/s	n	n
5.		Fujifilm GFX 100S II	5760	Y	3.2 / 2360	full-flex	Y	1/4000s	7.0/s	n	Y
6.		Fujifilm X100V	3690	n	3.0 / 1620	tilting	Y	1/4000s	11.0/s	n	n
7.		Fujifilm X100VI	3690	n	3.0 / 1620	tilting	Y	1/4000s	11.0/s	n	Y
8.		Hasselblad X1D II	3690	n	3.6 / 2360	fixed	Y	1/2000s	2.7/s	n	n
9.		Leica Q2	3680	n	3.0 / 1040	fixed	Y	1/2000s	10.0/s	n	Y
10.		Leica Q3	5760	n	3.0 / 1840	tilting	Y	1/2000s	15.0/s	n	Y
11.		Pentax WG-8	none	n	3.0 / 1040	fixed	n	1/4000s	8.0/s	Y	n
12.		Sigma fp L	optional	n	3.2 / 2100	fixed	Y	1/8000s	10.0/s	n	n
13.		Sony RX1R II	2360	n	3.0 / 1229	tilting	n	1/4000s	5.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, both cameras under consideration feature an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Fujifilm GFX 100RF 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.

Both the GFX 100RF and the RX1R III have built-in prime lenses. The GFX 100RF has a 28mm f/4.0 optic and the RX1R III offers a 35mm f/2.0. Hence, the Fujifilm provides a wider angle of view than the Sony. The RX1R III offers the faster maximum aperture.

Concerning the storage of imaging data, both the GFX 100RF and the RX1R III write their files to SDXC cards. The GFX 100RF 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 100RF and Sony Cyber-shot DSC-RX1R III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections

		Camera Model	Hotshoe Port	Internal Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Fujifilm GFX 100RF	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
2.		Sony RX1R III	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
3.		Canon R5 C	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
4.		Fujifilm GFX 50R	Y	stereo / mono	Y	Y	micro	3.0	Y	-	Y
5.		Fujifilm GFX 100S II	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
6.		Fujifilm X100V	Y	stereo / mono	Y	-	micro	3.1	Y	-	Y
7.		Fujifilm X100VI	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
8.		Hasselblad X1D II	Y	stereo / mono	Y	Y	-	3.0	Y	-	-
9.		Leica Q2	Y	stereo / mono	-	-	-	-	Y	-	Y
10.		Leica Q3	Y	stereo / mono	-	-	micro	3.1	Y	-	Y
11.		Pentax WG-8	-	mono / mono	-	-	-	3.0	-	-	-
12.		Sigma fp L	Y	stereo / mono	Y	Y	micro	3.2	Y	-	-
13.		Sony RX1R II	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-

Both the GFX 100RF and the RX1R III are recent models that are part of the current product line-up. The RX1R III replaced the earlier Sony RX1R II, while the GFX 100RF does not have a direct predecessor. 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 the Fujifilm GFX 100RF better than the Sony RX1R III or vice versa? The listing below highlights the relative strengths of the two models.

Advantages of the Fujifilm GFX 100RF:

• More detail: Offers more megapixels (101.8 vs 60.2MP) with a 27% higher linear resolution.
• 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 (5760k vs 2360k dots).
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.84x 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 tilting screen for odd-angle shots in landscape orientation.
• Faster burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
• Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
• Longer lasting: Can take more shots (820 versus 300) on a single battery charge.
• 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 March 2025).

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

• More detailed LCD: Has a higher resolution rear screen (2360k vs 2100k dots).
• Better light gathering: Has a lens with a wider maximum aperture (f/2.0 vs f/4.0).
• More compact: Is smaller (113x68mm vs 134x90mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 237g or 32 percent) and is thus easier to take along.
• More modern: Was introduced somewhat (3 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the GFX 100RF is the clear winner of the match-up (14 : 5 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

How about other alternatives? Do the specifications of the Fujifilm GFX 100RF and the Sony RX1R III place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera listing 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 says little about, for example, the shooting experience and imaging performance of the GFX 100RF and the RX1R III in practical situations. 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 expert reviews 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.

Expert Camera Reviews

		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price	Street Price
1.		Fujifilm GFX 100RF	..	..	..	..	..	..	Mar 2025	US$ 4 899	amazon.com
2.		Sony RX1R III	..	..	..	..	..	..	Jul 2025	US$ 5 099	amazon.com
3.		Canon R5 C	..	+ +	..	..	..	..	Jan 2022	US$ 4 499	amazon.com
4.		Fujifilm GFX 50R	5/5	..	5/5	84/100	4.5/5	4.5/5	Sep 2018	US$ 4 499	ebay.com
5.		Fujifilm GFX 100S II	..	..	..	..	..	..	May 2024	US$ 4 999	amazon.com
6.		Fujifilm X100V	5/5	+ +	4.5/5	86/100	5/5	4.5/5	Feb 2020	US$ 1 399	ebay.com
7.		Fujifilm X100VI	5/5	+ +	4.5/5	87/100	..	4.5/5	Feb 2024	US$ 1 599	amazon.com
8.		Hasselblad X1D II	..	..	4/5	..	4/5	4/5	Jun 2019	US$ 5 749	ebay.com
9.		Leica Q2	..	..	4.5/5	84/100	4.5/5	4/5	Mar 2019	US$ 4 999	amazon.com
10.		Leica Q3	5/5	..	4.5/5	..	..	4.5/5	May 2023	US$ 5 999	amazon.com
11.		Pentax WG-8	..	..	..	..	..	..	Jun 2024	US$ 399	amazon.com
12.		Sigma fp L	4/5	..	4/5	..	4/5	4/5	Mar 2021	US$ 2 499	amazon.com
13.		Sony RX1R II	5/5	..	..	82/100	..	4.5/5	Oct 2015	US$ 3 299	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, 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 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.

Check GFX 100RF price at
amazon.com
Check RX1R III price at
amazon.com

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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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Check GFX 100RF price at
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Check RX1R III price at
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