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Fujifilm GFX 100S vs Ricoh GR IIIx

The Fujifilm GFX 100S and the Ricoh GR IIIx are two digital cameras that were announced, respectively, in January 2021 and September 2021. The GFX 100S is a mirrorless interchangeable lens camera, while the GR IIIx is a fixed lens compact. The cameras are based on a medium format (GFX 100S) and an APS-C (GR IIIx) sensor. The Fujifilm has a resolution of 101.8 megapixels, whereas the Ricoh provides 24 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
Ricoh GR IIIx
Fujifilm GFX 100S   Ricoh GR IIIx
Mirrorless system camera Fixed lens compact camera
Fujifilm G mount lenses 40mm f/2.8
101.8 MP – Medium Format sensor 24 MP – APS-C sensor
4K/30p Video 1080/60p Video
ISO 100-12,800 (50 - 102,400) ISO 100-102,400
Electronic viewfinder (3690k dots) Viewfinder optional
3.2" LCD – 2360k dots 3.0" LCD – 1037k dots
Fully flexible touchscreen Fixed touchscreen
5 shutter flaps per second 4 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodynot weather sealed
460 shots per battery charge200 shots per battery charge
150 x 104 x 87 mm, 900 g 109 x 62 x 35 mm, 262 g
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Check GFX 100S price at
amazon.com
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Check GR IIIx price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm GFX 100S and the Ricoh GR IIIx? 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

An illustration of the physical size and weight of the Fujifilm GFX 100S and the Ricoh GR IIIx is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

Size Fujifilm GFX 100S vs Ricoh GR IIIx
Compare GFX 100S versus GR IIIx top
Comparison GFX 100S or GR IIIx rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Ricoh GR IIIx is considerably smaller (57 percent) than the Fujifilm GFX 100S. It is worth mentioning in this context that the GFX 100S is splash and dust resistant, while the GR IIIx does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the GR IIIx 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 NP-W235 battery, while the GR IIIx can take 200 images on a single charge of its DB-110 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Fujifilm GFX 100S 150 mm 104 mm 87 mm 900 g 460 Y Jan 2021 5,999 amazon.com
2.
 
Ricoh GR IIIx 109 mm 62 mm 35 mm 262 g 200 n Sep 2021 999 amazon.com
3.
 
Canon R3 150 mm 143 mm 87 mm 1015 g 760 Y Sep 2021 5,999 amazon.com
4.
 
Canon R5 138 mm 98 mm 88 mm 738 g 320 Y Jul 2020 3,899 amazon.com
5.
 
Fujifilm GFX 50S II 150 mm 104 mm 87 mm 900 g 440 Y Sep 2021 3,999 amazon.com
6.
 
Fujifilm X-T4 135 mm 93 mm 64 mm 607 g 500 Y Feb 2020 1,699 amazon.com
7.
 
Fujifilm X-S10 126 mm 85 mm 65 mm 465 g 325 n Oct 2020 999 amazon.com
8.
 
Fujifilm GFX 100 156 mm 144 mm 75 mm 1320 g 800 Y May 2019 9,999 amazon.com
9.
 
Fujifilm GFX 50R 161 mm 97 mm 66 mm 775 g 400 Y Sep 2018 4,499 amazon.com
10.
 
Fujifilm GFX 50S 148 mm 94 mm 91 mm 740 g 400 Y Sep 2016 6,499ebay.com
11.
 
Hasselblad X1D II 148 mm 97 mm 70 mm 766 g .. Y Jun 2019 5,750 amazon.com
12.
 
Leica SL2 146 mm 107 mm 42 mm 953 g 370 Y Nov 2019 5,999 amazon.com
13.
 
Ricoh GR III 109 mm 62 mm 33 mm 257 g 200 n Feb 2019 899 amazon.com
14.
 
Ricoh GR II 117 mm 63 mm 35 mm 251 g 320 n Jun 2015 699 amazon.com
15.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 amazon.com
16.
 
Sony RX100 VI 102 mm 58 mm 43 mm 301 g 240 n Jun 2018 1,199ebay.com
17.
 
Sony RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 999ebay.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 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 GR IIIx was launched at a lower price than the GFX 100S, despite having a lens built in. 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. 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the 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 GFX 100S features a medium format sensor and the Ricoh GR IIIx an APS-C sensor. The sensor area in the GR IIIx is 75 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.79 and 1.5. The sensor in the GFX 100S has a native 4:3 aspect ratio, while the one in the GR IIIx offers a 3:2 aspect.

Fujifilm GFX 100S and Ricoh GR IIIx sensor measures

With 101.8MP, the GFX 100S offers a higher resolution than the GR IIIx (24MP), but the GFX 100S has smaller individual pixels (pixel pitch of 3.76μm versus 3.91μm for the GR IIIx). Moreover, the GR IIIx is a somewhat more recent model (by 7 months) than the GFX 100S, 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 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 Ricoh GR IIIx 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.

Unlike the GR IIIx, 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 Ricoh GR IIIx are ISO 100 to ISO 102400 (no boost).

In terms of underlying technology, the GFX 100S is build around a BSI-CMOS sensor, while the GR IIIx uses a 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.

GFX 100S versus GR IIIx MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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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 100S Medium Format 101.8 11648 87364K/30p25.814.73391100
2.
 
Ricoh GR IIIx APS-C 24.0 6000 40001080/60p24.213.8214685
3.
 
Canon R3 Full Frame 24.0 6000 40006K/60p25.014.7408696
4.
 
Canon R5 Full Frame 44.8 8192 54648K/30p25.314.6304295
5.
 
Fujifilm GFX 50S II Medium Format 51.1 8256 61921080/30p25.914.83456100
6.
 
Fujifilm X-T4 APS-C 26.0 6240 41604K/60p24.113.6199584
7.
 
Fujifilm X-S10 APS-C 26.0 6240 41604K/30p24.213.7205785
8.
 
Fujifilm GFX 100 Medium Format 101.8 11648 87364K/30p25.714.5322799
9.
 
Fujifilm GFX 50R Medium Format 51.1 8256 61921080/30p25.714.4316998
10.
 
Fujifilm GFX 50S Medium Format 51.1 8256 61921080/30p25.414.1297796
11.
 
Hasselblad X1D II Medium Format 51.3 8272 6200none25.714.5323499
12.
 
Leica SL2 Full Frame 46.7 8368 55844K/60p25.314.3286695
13.
 
Ricoh GR III APS-C 24.0 6000 40001080/60p24.113.5189783
14.
 
Ricoh GR II APS-C 16.1 4928 32641080/30p23.613.7107880
15.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
16.
 
Sony RX100 VI 1-inch 20.0 5472 36484K/30p22.112.347864
17.
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
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 100S provides a higher video resolution than the GR IIIx. It can shoot video footage at 4K/30p, while the Ricoh is limited to 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the GFX 100S has an electronic viewfinder (3690k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GR IIIx relies on live view and the rear LCD for framing. That said, the GR IIIx can be equipped with an optional viewfinder – the GV-3. The following table reports on some other key feature differences and similarities of the Fujifilm GFX 100S, the Ricoh GR IIIx, and comparable cameras.

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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 100S3690 Y3.2 / 2360 full-flex Y 1/4000s 5.0/s n Y
2.
 
Ricoh GR IIIxoptional n3.0 / 1037 fixed Y 1/4000s 4.0/s n Y
3.
 
Canon R35760 Y3.2 / 4150 swivel Y 1/8000s 12.0/s n Y
4.
 
Canon R55760 Y3.2 / 2100 swivel Y 1/8000s 12.0/s n Y
5.
 
Fujifilm GFX 50S II3690 Y3.2 / 2360 full-flex Y 1/4000s 3.0/s n Y
6.
 
Fujifilm X-T43690 n3.0 / 1620 swivel Y 1/8000s 15.0/s n Y
7.
 
Fujifilm X-S102360 n3.0 / 1040 swivel Y 1/4000s 8.0/s Y Y
8.
 
Fujifilm GFX 100optional Y3.2 / 2360 full-flex Y 1/4000s 5.0/s n Y
9.
 
Fujifilm GFX 50R3690 n3.2 / 2360 tilting Y 1/4000s 3.0/s n n
10.
 
Fujifilm GFX 50Soptional Y3.2 / 2360 full-flex Y 1/4000s 3.0/s n n
11.
 
Hasselblad X1D II3690 n3.6 / 2360 fixed Y 1/2000s 2.7/s n n
12.
 
Leica SL25760 Y3.2 / 2100 fixed Y 1/8000s 10.0/s n Y
13.
 
Ricoh GR IIIoptional n3.0 / 1037 fixed Y 1/4000s 4.0/s n Y
14.
 
Ricoh GR IIoptional n3.0 / 1230 fixed n 1/4000s 4.0/s Y n
15.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony RX100 VI2359 n3.0 / 1229 tilting Y 1/2000s 24.0/s Y Y
17.
 
Sony RX100 V2359 n3.0 / 1229 tilting n 1/2000s 24.0/s Y Y
Notes: *) 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 GR IIIx 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, the GFX 100S is one of those camera that have an additional 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 Ricoh GR IIIx 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 GR IIIx 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 GR IIIx only has one slot. The GFX 100S supports UHS-II cards (on both slots), while the GR IIIx can use UHS-I cards.

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 Ricoh GR IIIx and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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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 100SYstereo / monoYYmicro3.2Y-Y
2.
 
Ricoh GR IIIxYstereo / mono---3.0Y-Y
3.
 
Canon R3Ystereo / monoYYmicro3.2Y-Y
4.
 
Canon R5Ymono / monoYYmicro3.2Y-Y
5.
 
Fujifilm GFX 50S IIYstereo / monoYYmicro3.2Y--
6.
 
Fujifilm X-T4Ystereo / monoY-micro3.1Y-Y
7.
 
Fujifilm X-S10Ystereo / monoY-micro3.2Y-Y
8.
 
Fujifilm GFX 100Ystereo / monoYYmicro3.1Y-Y
9.
 
Fujifilm GFX 50RYstereo / monoYYmicro3.0Y-Y
10.
 
Fujifilm GFX 50SYstereo / monoYYmicro3.0Y--
11.
 
Hasselblad X1D IIYstereo / monoYY-3.0Y--
12.
 
Leica SL2Ystereo / monoYYfull3.1Y-Y
13.
 
Ricoh GR IIIYstereo / mono---3.0Y-Y
14.
 
Ricoh GR IIYstereo / mono--micro2.0YY-
15.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
16.
 
Sony RX100 VI-stereo / mono--micro2.0YYY
17.
 
Sony RX100 V-stereo / mono--micro2.0YY-

It is notable that the GFX 100S has a microphone port, which is missing on the GR IIIx. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

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

Both the GFX 100S and the GR IIIx are recent models that are part of the current product line-up. The GFX 100S replaced the earlier Fujifilm GFX 100, while the GR IIIx followed on from the Ricoh GR 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 Ricoh websites.

Review summary

So how do things add up? Which of the two cameras – the Fujifilm GFX 100S or the Ricoh GR IIIx – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Fujifilm GFX 100S:

  • More detail: Offers more megapixels (101.8 vs 24MP) with a 102% higher linear resolution.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • 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.
  • 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 detailed LCD: Has a higher resolution rear screen (2360k vs 1037k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Faster burst: Shoots at higher frequency (5 vs 4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
  • Longer lasting: Can take more shots (460 versus 200) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • 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 heavily discounted: Has been on the market for longer (launched in January 2021).

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Reasons to prefer the Ricoh GR IIIx:

  • Ready to shoot: Has an integrated lens, whereas the GFX 100S necessitates an extra lens.
  • More compact: Is smaller (109x62mm 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: Was introduced somewhat (7 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the GFX 100S is the clear winner of the match-up (19 : 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.

GFX 100S 19:05 GR IIIx

How about other alternatives? Do the specifications of the Fujifilm GFX 100S and the Ricoh GR IIIx 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the GFX 100S or the GR IIIx perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews are important. 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.

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Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Fujifilm GFX 100S5/5+ +5/590/1005/55/5 Jan 2021 5,999 amazon.com
2.
 
Ricoh GR IIIx............ Sep 2021 999 amazon.com
3.
 
Canon R3..o4.5/5....4.5/5 Sep 2021 5,999 amazon.com
4.
 
Canon R54.5/5+4/591/1004.5/54.5/5 Jul 2020 3,899 amazon.com
5.
 
Fujifilm GFX 50S II5/5..5/587/100..5/5 Sep 2021 3,999 amazon.com
6.
 
Fujifilm X-T45/5+ +5/588/1005/55/5 Feb 2020 1,699 amazon.com
7.
 
Fujifilm X-S105/5..4.5/586/1004.5/54.5/5 Oct 2020 999 amazon.com
8.
 
Fujifilm GFX 1004.5/5+ +4.8/590/1005/54.5/5 May 2019 9,999 amazon.com
9.
 
Fujifilm GFX 50R5/5..5/584/1004.5/54.5/5 Sep 2018 4,499 amazon.com
10.
 
Fujifilm GFX 50S....4.5/585/1005/54.5/5 Sep 2016 6,499ebay.com
11.
 
Hasselblad X1D II....4/5..4/54/5 Jun 2019 5,750 amazon.com
12.
 
Leica SL24/5..4.5/5..4.5/54/5 Nov 2019 5,999 amazon.com
13.
 
Ricoh GR III4/5..3.5/581/1004/5.. Feb 2019 899 amazon.com
14.
 
Ricoh GR II........4.5/54.5/5 Jun 2015 699 amazon.com
15.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 amazon.com
16.
 
Sony RX100 VI4.5/5+ +..83/1004/54.5/5 Jun 2018 1,199ebay.com
17.
 
Sony RX100 V4.5/5+ +..83/1004/54.5/5 Oct 2016 999ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Check GFX 100S price at
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Check GR IIIx price at
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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Fujifilm GFX 100S vs Ricoh GR IIIx

    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 Ricoh GR IIIx
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Fujifilm G mount lenses 40mm f/2.8
    Launch Date January 2021 September 2021
    Launch Price USD 5,999 USD 999
    Sensor Specs Fujifilm GFX 100S Ricoh GR IIIx
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Medium Format Sensor APS-C Sensor
    Sensor Size 43.8 x 32.9 mm 23.5 x 15.6 mm
    Sensor Area 1441.02 mm2 366.6 mm2
    Sensor Diagonal 54.8 mm 28.2 mm
    Crop Factor 0.79x 1.5x
    Sensor Resolution 101.8 Megapixels 24 Megapixels
    Image Resolution 11648 x 8736 pixels 6000 x 4000 pixels
    Pixel Pitch 3.76 μm 3.91 μm
    Pixel Density 7.06 MP/cm2 6.55 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 1080/60p Video
    ISO Setting 100 - 12,800 ISO 100 - 102,400 ISO
    ISO Boost 50 - 102,400 ISO no Enhancement
    Image Processor X-Processor 4 GR Engine VI
    Screen Specs Fujifilm GFX 100S Ricoh GR IIIx
    Viewfinder Type Electronic viewfinder Viewfinder optional
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.77x
    Viewfinder Resolution 3690k 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 1037k dots
    LCD Attachment Fully flexible screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Fujifilm GFX 100S Ricoh GR IIIx
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 5 shutter flaps/s 4 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support Dual UHS-II UHS-I
    Connectivity Specs Fujifilm GFX 100S Ricoh GR IIIx
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.2 USB 3.0
    HDMI Port micro HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Fujifilm GFX 100S Ricoh GR IIIx
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type NP-W235 DB-110
    Battery Life (CIPA)460 shots per charge200 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)
    109 x 62 x 35 mm
    (4.3 x 2.4 x 1.4 in)
    Camera Weight 900 g (31.7 oz) 262 g (9.2 oz)
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