Fujifilm GFX 100 II vs Panasonic S1R II

The Fujifilm GFX 100 II and the Panasonic Lumix DC-S1R II are two digital cameras that were officially introduced, respectively, in September 2023 and May 2025. Both the GFX 100 II and the S1R II are mirrorless interchangeable lens cameras that are based on a medium format (GFX 100 II) and a full frame (S1R II) sensor. The Fujifilm has a resolution of 101.8 megapixels, whereas the Panasonic provides 44.2 MP.

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

Headline Specifications

Fujifilm GFX 100 II		Panasonic S1R II
Mirrorless system camera		Mirrorless system camera
Fujifilm G mount lenses		Leica L mount lenses
101.8 MP – Medium Format sensor		44.2 MP – Full Frame sensor
8K/30p Video		8K/30p Video
ISO 100-12,800 (50 - 102,400)		ISO 80-51,200 (40 - 102,400)
Electronic viewfinder (9440k dots)		Electronic viewfinder (5760k dots)
3.2" LCD – 2360k dots		3.2" LCD – 1840k dots
Fully flexible touchscreen		Fully flexible touchscreen
8 shutter flaps per second		9 shutter flaps per second
In-body stabilization		In-body stabilization
Weathersealed body		Weathersealed body
540 shots per battery charge		350 shots per battery charge
152 x 117 x 99 mm, 1030 g		134 x 102 x 92 mm, 795 g

Check GFX 100 II price at
amazon.com
Check S1R II price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm GFX 100 II and the Panasonic Lumix DC-S1R II? 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 100 II and the Panasonic S1R II. 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.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic S1R II is notably smaller (23 percent) than the Fujifilm GFX 100 II. Moreover, the S1R II is markedly lighter (23 percent) than the GFX 100 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 since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the GFX 100 II gets 540 shots out of its Fujifilm NP-W235 battery, while the S1R II can take 350 images on a single charge of its Panasonic DMW-BLK22 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. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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 100 II	152 mm	117 mm	99 mm	1030 g	540	Y	Sep 2023	EUR 7 999	amazon.com
2.		Panasonic S1R II	134 mm	102 mm	92 mm	795 g	350	Y	May 2025	EUR 3 599	amazon.com
3.		Canon R1	158 mm	150 mm	87 mm	1115 g	1330	Y	Jul 2024	EUR 7 499	amazon.com
4.		Fujifilm GFX 50S	148 mm	94 mm	91 mm	740 g	400	Y	Sep 2016	EUR 6 499	ebay.com
5.		Fujifilm GFX 50S II	150 mm	104 mm	87 mm	900 g	440	Y	Sep 2021	EUR 3 999	amazon.com
6.		Fujifilm GFX 100	156 mm	144 mm	75 mm	1320 g	800	Y	May 2019	EUR 10 999	ebay.com
7.		Fujifilm GFX 100S	150 mm	104 mm	87 mm	900 g	460	Y	Jan 2021	EUR 5 999	amazon.com
8.		Fujifilm GFX 100S II	150 mm	104 mm	87 mm	883 g	530	Y	May 2024	EUR 5 499	amazon.com
9.		Fujifilm X-H2	136 mm	93 mm	85 mm	660 g	680	Y	Sep 2022	EUR 2 249	amazon.com
10.		Fujifilm X-H2S	136 mm	93 mm	85 mm	660 g	580	Y	May 2022	EUR 2 749	amazon.com
11.		Hasselblad X2D 100C	149 mm	106 mm	75 mm	895 g	420	Y	Sep 2022	EUR 8 699	amazon.com
12.		Leica SL3	141 mm	108 mm	85 mm	854 g	320	Y	Mar 2024	EUR 6 799	amazon.com
13.		Nikon Z7 II	134 mm	101 mm	70 mm	705 g	420	Y	Oct 2020	EUR 3 399	amazon.com
14.		Panasonic S1 II	134 mm	102 mm	92 mm	800 g	350	Y	May 2025	EUR 3 499	amazon.com
15.		Panasonic S1R	149 mm	110 mm	97 mm	1016 g	380	Y	Feb 2019	EUR 3 699	ebay.com
16.		Panasonic S5	133 mm	98 mm	82 mm	714 g	440	Y	Sep 2020	EUR 1 999	amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will naturally be influenced heavily by the price. 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 S1R II was launched at a markedly lower price (by 56 percent) than the GFX 100 II, 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 100 II features a medium format sensor and the Panasonic S1R II a full frame sensor. The sensor area in the S1R II 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 100 II has a native 4:3 aspect ratio, while the one in the S1R II offers a 3:2 aspect.

With 101.8MP, the GFX 100 II offers a higher resolution than the S1R II (44.2MP), but the GFX 100 II has smaller individual pixels (pixel pitch of 3.76μm versus 4.40μm for the S1R II). Moreover, the S1R II is a somewhat more recent model (by 1 year and 8 months) than the GFX 100 II, 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 100 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GFX 100 II 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 Panasonic S1R II are 40.7 x 27.1 inches or 103.4 x 68.9 cm for good quality, 32.6 x 21.7 inches or 82.7 x 55.1 cm for very good quality, and 27.1 x 18.1 inches or 69 x 45.9 cm for excellent quality prints.

Both cameras have the capacity to capture high quality composite images by combining multiple shots after shifting the sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Fujifilm GFX 100 II 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 Panasonic Lumix DC-S1R II are ISO 80 to ISO 51200, with the possibility to increase the ISO range to 40-102400.

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 assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. 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 100 II	Medium Format	101.8	11648	8736	8K/30p	25.9	15.0	3651	101
2.		Panasonic S1R II	Full Frame	44.2	8144	5424	8K/30p	25.4	14.8	3406	97
3.		Canon R1	Full Frame	24.0	6000	4000	6K/60p	25.4	14.8	3332	97
4.		Fujifilm GFX 50S	Medium Format	51.1	8256	6192	1080/30p	25.4	14.1	2977	96
5.		Fujifilm GFX 50S II	Medium Format	51.1	8256	6192	1080/30p	25.9	14.8	3456	100
6.		Fujifilm GFX 100	Medium Format	101.8	11648	8736	4K/30p	25.7	14.5	3227	99
7.		Fujifilm GFX 100S	Medium Format	101.8	11648	8736	4K/30p	25.8	14.7	3391	100
8.		Fujifilm GFX 100S II	Medium Format	101.8	11648	8736	4K/30p	25.9	15.1	3720	101
9.		Fujifilm X-H2	APS-C	39.8	7728	5152	8k/30p	24.3	13.9	2249	86
10.		Fujifilm X-H2S	APS-C	26.0	6240	4160	6.2k/30p	24.3	13.9	2224	86
11.		Hasselblad X2D 100C	Medium Format	102.1	11656	8762	none	25.9	14.9	3550	101
12.		Leica SL3	Full Frame	60.3	9520	6336	8K/30p	25.4	14.8	3295	97
13.		Nikon Z7 II	Full Frame	45.4	8256	5504	4K/60p	26.3	14.7	2841	100
14.		Panasonic S1 II	Full Frame	24.0	6000	4000	6K/30p	25.4	14.8	3406	97
15.		Panasonic S1R	Full Frame	46.7	8368	5584	4K/60p	26.4	14.1	3525	100
16.		Panasonic S5	Full Frame	24.0	6000	4000	4K/60p	25.1	14.5	2697	94
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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the GFX 100 II provides a higher video resolution than the S1R II. It can shoot video footage at 8K/30p, while the Panasonic is limited to 8K/30p.

Feature comparison

Apart from 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 100 II offers a substantially higher resolution than the one in the S1R II (9440k vs 5760k dots). The adjacent table lists some of the other core features of the Fujifilm GFX 100 II and Panasonic S1R II 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 100 II	9440	Y	3.2 / 2360	full-flex	Y	1/4000s	8.0/s	n	Y
2.		Panasonic S1R II	5760	n	3.2 / 1840	full-flex	Y	1/8000s	9.0/s	n	Y
3.		Canon R1	9440	Y	3.2 / 2100	swivel	Y	1/8000s	12.0/s	n	Y
4.		Fujifilm GFX 50S	optional	Y	3.2 / 2360	full-flex	Y	1/4000s	3.0/s	n	n
5.		Fujifilm GFX 50S II	3690	Y	3.2 / 2360	full-flex	Y	1/4000s	3.0/s	n	Y
6.		Fujifilm GFX 100	optional	Y	3.2 / 2360	full-flex	Y	1/4000s	5.0/s	n	Y
7.		Fujifilm GFX 100S	3690	Y	3.2 / 2360	full-flex	Y	1/4000s	5.0/s	n	Y
8.		Fujifilm GFX 100S II	5760	Y	3.2 / 2360	full-flex	Y	1/4000s	7.0/s	n	Y
9.		Fujifilm X-H2	5760	Y	3.0 / 1620	swivel	Y	1/8000s	15.0/s	n	Y
10.		Fujifilm X-H2S	5760	Y	3.0 / 1620	swivel	Y	1/8000s	15.0/s	n	Y
11.		Hasselblad X2D 100C	5760	Y	3.6 / 2360	tilting	Y	1/4000s	3.3/s	n	Y
12.		Leica SL3	5760	Y	3.2 / 2333	tilting	Y	1/8000s	5.0/s	n	Y
13.		Nikon Z7 II	3690	Y	3.2 / 2100	tilting	Y	1/8000s	10.0/s	n	Y
14.		Panasonic S1 II	5760	n	3.2 / 1840	full-flex	Y	1/8000s	10.0/s	n	Y
15.		Panasonic S1R	5760	Y	3.2 / 2100	full-flex	Y	1/8000s	9.0/s	n	Y
16.		Panasonic S5	2360	n	3.0 / 1840	swivel	Y	1/8000s	7.0/s	n	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the GFX 100 II, but is missing on the S1R II 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 100 II and the Panasonic S1R II 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 100 II and the S1R II write their files to CFexpress (type B) or SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. 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 100 II and Panasonic Lumix DC-S1R II 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 100 II	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
2.		Panasonic S1R II	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
3.		Canon R1	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
4.		Fujifilm GFX 50S	Y	stereo / mono	Y	Y	micro	3.0	Y	-	-
5.		Fujifilm GFX 50S II	Y	stereo / mono	Y	Y	micro	3.2	Y	-	-
6.		Fujifilm GFX 100	Y	stereo / mono	Y	Y	micro	3.1	Y	-	Y
7.		Fujifilm GFX 100S	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
8.		Fujifilm GFX 100S II	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
9.		Fujifilm X-H2	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
10.		Fujifilm X-H2S	Y	stereo / mono	Y	Y	full	3.0	Y	-	Y
11.		Hasselblad X2D 100C	Y	stereo / mono	-	-	-	3.2	Y	-	-
12.		Leica SL3	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
13.		Nikon Z7 II	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
14.		Panasonic S1 II	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
15.		Panasonic S1R	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
16.		Panasonic S5	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the GFX 100 II and the S1R II are recent models that are part of the current product line-up. The GFX 100 II replaced the earlier Fujifilm GFX 100, while the S1R II followed on from the Panasonic S1R. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Panasonic websites.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Fujifilm GFX 100 II and the Panasonic S1R II? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Advantages of the Fujifilm GFX 100 II:

• More detail: Offers more megapixels (101.8 vs 44.2MP) with a 49% higher linear resolution.
• Better video: Provides higher definition movie capture (8K/30p vs 8K/30p).
• More detailed viewfinder: Has higher resolution electronic viewfinder (9440k vs 5760k dots).
• Larger viewfinder image: Features a viewfinder with a higher magnification (1.27x vs 0.78x).
• Easier setting verification: Features an LCD display on top to control shooting parameters.
• More detailed LCD: Has a higher resolution rear screen (2360k vs 1840k dots).
• Longer lasting: Can take more shots (540 versus 350) on a single battery charge.
• More heavily discounted: Has been on the market for longer (launched in September 2023).

Arguments in favor of the Panasonic Lumix DC-S1R II:

• 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 (9 vs 8 flaps/sec) to capture the decisive moment.
• More compact: Is smaller (134x102mm vs 152x117mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 235g or 23 percent) and is thus easier to take along.
• More affordable: Was introduced into a lower priced category (56 percent cheaper at launch).
• More modern: Was introduced somewhat (1 year and 8 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the GFX 100 II comes out slightly ahead of the S1R II (8 : 7 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 100 II and the Panasonic S1R II 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 incomplete and does no justice, for example, to the way the GFX 100 II or the S1R II perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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 100 II	5/5	+	5/5	..	..	4.5/5	Sep 2023	EUR 7 999	amazon.com
2.		Panasonic S1R II	..	..	..	..	..	..	May 2025	EUR 3 599	amazon.com
3.		Canon R1	..	..	..	..	..	..	Jul 2024	EUR 7 499	amazon.com
4.		Fujifilm GFX 50S	..	..	4.5/5	85/100	5/5	4.5/5	Sep 2016	EUR 6 499	ebay.com
5.		Fujifilm GFX 50S II	5/5	..	5/5	87/100	..	5/5	Sep 2021	EUR 3 999	amazon.com
6.		Fujifilm GFX 100	4.5/5	+ +	4.8/5	90/100	5/5	4.5/5	May 2019	EUR 10 999	ebay.com
7.		Fujifilm GFX 100S	5/5	+ +	5/5	90/100	5/5	5/5	Jan 2021	EUR 5 999	amazon.com
8.		Fujifilm GFX 100S II	..	..	..	..	..	..	May 2024	EUR 5 499	amazon.com
9.		Fujifilm X-H2	5/5	+ +	5/5	89/100	5/5	5/5	Sep 2022	EUR 2 249	amazon.com
10.		Fujifilm X-H2S	5/5	+	5/5	90/100	5/5	5/5	May 2022	EUR 2 749	amazon.com
11.		Hasselblad X2D 100C	4/5	..	5/5	..	..	..	Sep 2022	EUR 8 699	amazon.com
12.		Leica SL3	..	..	4.5/5	..	..	4.5/5	Mar 2024	EUR 6 799	amazon.com
13.		Nikon Z7 II	4.5/5	..	4.5/5	..	4.5/5	4.5/5	Oct 2020	EUR 3 399	amazon.com
14.		Panasonic S1 II	..	..	..	..	..	..	May 2025	EUR 3 499	amazon.com
15.		Panasonic S1R	4.5/5	..	4.6/5	89/100	4.5/5	4.5/5	Feb 2019	EUR 3 699	ebay.com
16.		Panasonic S5	4.5/5	+ +	4.5/5	88/100	4.5/5	4.5/5	Sep 2020	EUR 1 999	amazon.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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Check GFX 100 II price at
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Check S1R II price at
amazon.com

Other camera comparisons

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Check GFX 100 II price at
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