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Ricoh GR IIIx vs Sony A9 III

The Ricoh GR IIIx and the Sony Alpha A9 III are two digital cameras that were announced, respectively, in September 2021 and November 2023. The GR IIIx is a fixed lens compact, while the A9 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (GR IIIx) and a full frame (A9 III) sensor. Both cameras offer a resolution of 24 megapixels.

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

Headline Specifications
Ricoh GR IIIx
versus
Sony A9 III
Ricoh GR IIIx   Sony A9 III
Fixed lens compact camera Mirrorless system camera
40mm f/2.8 Sony E mount lenses
24 MP – APS-C sensor 24 MP – Full Frame sensor
1080/60p Video 4K/120p Video
ISO 100-102,400 ISO 250-25,600 (125 - 51,200)
Viewfinder optional Electronic viewfinder (9440k dots)
3.0" LCD – 1037k dots 3.2" LCD – 2100k dots
Fixed touchscreen Fully flexible touchscreen
4 shutter flaps per second 120 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
200 shots per battery charge530 shots per battery charge
109 x 62 x 35 mm, 262 g 136 x 97 x 83 mm, 702 g
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Check GR IIIx price at
amazon.com
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Check A9 III price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Ricoh GR IIIx and the Sony Alpha A9 III? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Ricoh GR IIIx and the Sony A9 III. 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 Ricoh GR IIIx vs Sony A9 III
Compare GR IIIx versus A9 III top
Comparison GR IIIx or A9 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A9 III is considerably larger (95 percent) than the Ricoh GR IIIx. It is noteworthy in this context that the A9 III is splash and dust-proof, 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 A9 III is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A9 III and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the GR IIIx gets 200 shots out of its Ricoh DB-110 battery, while the A9 III can take 530 images on a single charge of its Sony NP-FZ100 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Ricoh GR IIIx 109 mm 62 mm 35 mm 262 g 200 n Sep 2021 US$ 999 amazon.com
2.
 
Sony A9 III 136 mm 97 mm 83 mm 702 g 530 Y Nov 2023 US$ 5 999 amazon.com
3.
 
Fujifilm X-E4 121 mm 73 mm 33 mm 364 g 380 n Jan 2021 US$ 849 amazon.com
4.
 
Fujifilm X-S10 126 mm 85 mm 65 mm 465 g 325 n Oct 2020 US$ 999 amazon.com
5.
 
Fujifilm XF10 113 mm 64 mm 41 mm 279 g 330 n Jul 2018 US$ 499ebay.com
6.
 
Nikon Z fc 135 mm 94 mm 44 mm 445 g 300 n Jun 2021 US$ 959 amazon.com
7.
 
Ricoh GR II 117 mm 63 mm 35 mm 251 g 320 n Jun 2015 US$ 699ebay.com
8.
 
Ricoh GR III 109 mm 62 mm 33 mm 257 g 200 n Feb 2019 US$ 899 amazon.com
9.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 US$ 6 499 amazon.com
10.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 US$ 1 999ebay.com
11.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 US$ 1 999 amazon.com
12.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 US$ 4 499ebay.com
13.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 US$ 4 499 amazon.com
14.
 
Sony RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 US$ 999ebay.com
15.
 
Sony RX100 VI 102 mm 58 mm 43 mm 301 g 240 n Jun 2018 US$ 1 199ebay.com
16.
 
Sony RX100 VII 102 mm 58 mm 43 mm 302 g 260 n Jul 2019 US$ 1 199 amazon.com
17.
 
Sony ZV-1 105 mm 60 mm 44 mm 294 g 260 n May 2020 US$ 799ebay.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 GR IIIx was launched at a lower price than the A9 III, 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. 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 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Ricoh GR IIIx features an APS-C sensor and the Sony A9 III a full frame sensor. The sensor area in the A9 III is 131 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Ricoh GR IIIx and Sony A9 III sensor measures

Even though the A9 III has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the A9 III has a lower pixel density and larger individual pixels (with a pixel pitch of 5.94μm versus 3.91μm for the GR IIIx), which gives it a potential advantage in terms of light gathering capacity. In addition, the A9 III is much more recent (by 2 years and 1 month) than the GR IIIx, and its sensor will have benefitted from technological advances during this time. Coming back to sensor resolution, it should be mentioned that the GR IIIx has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The Ricoh GR IIIx has a native sensitivity range from ISO 100 to ISO 102400. The corresponding ISO settings for the Sony Alpha A9 III are ISO 250 to ISO 25600, with the possibility to increase the ISO range to 125-51200.

In terms of underlying technology, the GR IIIx is build around a CMOS sensor, while the A9 III uses a Stacked 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.

GR IIIx versus A9 III MP

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 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Ricoh GR IIIx APS-C 24.0 6000 40001080/60p24.213.8214685
2.
 
Sony A9 III Full Frame 24.0 6000 40004K/120p25.414.7324396
3.
 
Fujifilm X-E4 APS-C 26.0 6240 41604K/30p24.213.7208585
4.
 
Fujifilm X-S10 APS-C 26.0 6240 41604K/30p24.213.7205785
5.
 
Fujifilm XF10 APS-C 24.0 6000 40004K/15p24.013.4184483
6.
 
Nikon Z fc APS-C 20.7 5568 37124K/30p24.213.8213185
7.
 
Ricoh GR II APS-C 16.1 4928 32641080/30p23.613.7107880
8.
 
Ricoh GR III APS-C 24.0 6000 40001080/60p24.113.5189783
9.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
10.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
11.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
12.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
13.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
14.
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
15.
 
Sony RX100 VI 1-inch 20.0 5472 36484K/30p22.112.347864
16.
 
Sony RX100 VII 1-inch 20.0 5472 36484K/30p21.812.441863
17.
 
Sony ZV-1 1-inch 20.0 5472 36484K/30p22.212.666966
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 have a sensor with sufficiently fast read-out times for moving pictures, but the A9 III provides a better video resolution than the GR IIIx. It can shoot movie footage at 4K/120p, while the Ricoh is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A9 III has an electronic viewfinder (9440k 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 Ricoh GR IIIx, the Sony A9 III, and comparable cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Ricoh GR IIIxoptional n3.0 / 1037 fixed Y 1/4000s 4.0/s n Y
2.
 
Sony A9 III9440 n3.2 / 2100 full-flex Y 1/80000s 120.0/s n Y
3.
 
Fujifilm X-E42360 n3.0 / 1620 tilting Y 1/4000s 8.0/s n n
4.
 
Fujifilm X-S102360 n3.0 / 1040 swivel Y 1/4000s 8.0/s Y Y
5.
 
Fujifilm XF10none n3.0 / 1040 fixed Y 1/4000s 6.0/s Y n
6.
 
Nikon Z fc2360 Y3.0 / 1040 swivel Y 1/4000s 11.0/s n n
7.
 
Ricoh GR IIoptional n3.0 / 1230 fixed n 1/4000s 4.0/s Y n
8.
 
Ricoh GR IIIoptional n3.0 / 1037 fixed Y 1/4000s 4.0/s n Y
9.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
10.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
11.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
12.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
13.
 
Sony A9 II3686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
14.
 
Sony RX100 V2359 n3.0 / 1229 tilting n 1/2000s 24.0/s Y Y
15.
 
Sony RX100 VI2359 n3.0 / 1229 tilting Y 1/2000s 24.0/s Y Y
16.
 
Sony RX100 VII2359 n3.0 / 921 tilting Y 1/2000s 90.0/s Y Y
17.
 
Sony ZV-1none n3.0 / 922 swivel Y 1/2000s 24.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
The A9 III has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the GR IIIx does not have a selfie-screen.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A9 III 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 Ricoh GR IIIx and the Sony A9 III both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The GR IIIx writes its imaging data to SDXC cards, while the A9 III uses CFexpress (type A) or SDXC cards. The A9 III 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 A9 III supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the GR IIIx can use UHS-I cards (up to 104 MB/s).

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Ricoh GR IIIx and Sony Alpha A9 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.
 
Ricoh GR IIIxYstereo / mono---3.0Y-Y
2.
 
Sony A9 IIIYstereo / monoYYfull3.2Y-Y
3.
 
Fujifilm X-E4Ystereo / monoY-micro3.2Y-Y
4.
 
Fujifilm X-S10Ystereo / monoY-micro3.2Y-Y
5.
 
Fujifilm XF10-stereo / monoY-micro2.0Y-Y
6.
 
Nikon Z fcYstereo / monoY-micro3.2Y-Y
7.
 
Ricoh GR IIYstereo / mono--micro2.0YY-
8.
 
Ricoh GR IIIYstereo / mono---3.0Y-Y
9.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
10.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
11.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
12.
 
Sony A9Ystereo / monoYYmicro2.0YYY
13.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY
14.
 
Sony RX100 V-stereo / mono--micro2.0YY-
15.
 
Sony RX100 VI-stereo / mono--micro2.0YYY
16.
 
Sony RX100 VII-stereo / monoY-micro2.0YYY
17.
 
Sony ZV-1Ystereo / monoY-micro2.0Y-Y

It is notable that the A9 III has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The GR IIIx does not feature such a mic input.

Studio photographers will appreciate that the Sony A9 III (unlike the GR IIIx) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the GR IIIx and the A9 III are recent models that are part of the current product line-up. The GR IIIx replaced the earlier Ricoh GR II, while the A9 III followed on from the Sony A9 II. Further information on the features and operation of the GR IIIx and A9 III can be found, respectively, in the Ricoh GR IIIx Manual (free pdf) or the online Sony A9 III Manual.

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Review summary

So what is the bottom line? Is there a clear favorite between the Ricoh GR IIIx and the Sony A9 III? Which camera is better? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Ricoh GR IIIx:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Ready to shoot: Has a lens built-in, whereas the A9 III requires a separate lens.
  • More compact: Is smaller (109x62mm vs 136x97mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A9 III).
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been available for much longer (launched in September 2021).

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Reasons to prefer the Sony Alpha A9 III:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Is equipped with a larger and more technologically advanced sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Better video: Provides higher definition movie capture (4K/120p 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.
  • 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 (2100k vs 1037k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/80000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (120 vs 4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (530 versus 200) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 2 years and 1 month of technical progress since the GR IIIx launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A9 III is the clear winner of the contest (24 : 6 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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.

GR IIIx 06:24 A9 III

How about other alternatives? Do the specifications of the Ricoh GR IIIx and the Sony A9 III place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best Mirrorless Interchangeable Lens 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the GR IIIx or the A9 III. 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Ricoh GR IIIx....4.5/5...... Sep 2021 US$ 999 amazon.com
2.
 
Sony A9 III4.5/5.......... Nov 2023 US$ 5 999 amazon.com
3.
 
Fujifilm X-E44/5..4/5..4.5/54/5 Jan 2021 US$ 849 amazon.com
4.
 
Fujifilm X-S105/5..4.5/586/1004.5/54.5/5 Oct 2020 US$ 999 amazon.com
5.
 
Fujifilm XF10....4/575/1004/54.5/5 Jul 2018 US$ 499ebay.com
6.
 
Nikon Z fc4/5..4.5/586/1005/54.5/5 Jun 2021 US$ 959 amazon.com
7.
 
Ricoh GR II........4.5/54.5/5 Jun 2015 US$ 699ebay.com
8.
 
Ricoh GR III4/5..3.5/581/1004/5.. Feb 2019 US$ 899 amazon.com
9.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 US$ 6 499 amazon.com
10.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 US$ 1 999ebay.com
11.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 US$ 1 999 amazon.com
12.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 US$ 4 499ebay.com
13.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 US$ 4 499 amazon.com
14.
 
Sony RX100 V4.5/5+ +..83/1004/54.5/5 Oct 2016 US$ 999ebay.com
15.
 
Sony RX100 VI4.5/5+ +..83/1004/54.5/5 Jun 2018 US$ 1 199ebay.com
16.
 
Sony RX100 VII4.5/5..4/5..4/55/5 Jul 2019 US$ 1 199 amazon.com
17.
 
Sony ZV-14/5+4/585/1004/54.5/5 May 2020 US$ 799ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Check GR IIIx price at
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Check A9 III price at
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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 a corresponding selection in the search boxes 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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    Specifications: Ricoh GR IIIx vs Sony A9 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 Ricoh GR IIIx Sony A9 III
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 40mm f/2.8 Sony E mount lenses
    Launch Date September 2021 November 2023
    Launch Price USD 999 USD 5,999
    Sensor Specs Ricoh GR IIIx Sony A9 III
    Sensor Technology CMOS Stacked CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.5 x 15.6 mm 35.6 x 23.8 mm
    Sensor Area 366.6 mm2 847.28 mm2
    Sensor Diagonal 28.2 mm 42.8 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 24 Megapixels 24 Megapixels
    Image Resolution 6000 x 4000 pixels 6000 x 4000 pixels
    Pixel Pitch 3.91 μm 5.94 μm
    Pixel Density 6.55 MP/cm2 2.83 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/120p Video
    ISO Setting 100 - 102,400 ISO 250 - 25,600 ISO
    ISO Boost no Enhancement 125 - 51,200 ISO
    Image Processor GR Engine VI Dual BIONZ XR
    Screen Specs Ricoh GR IIIx Sony A9 III
    Viewfinder Type Viewfinder optional Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.9x
    Viewfinder Resolution 9440k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1037k dots 2100k dots
    LCD Attachment Fixed screen Fully flexible screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Ricoh GR IIIx Sony A9 III
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/80000s
    Continuous Shooting 4 shutter flaps/s 120 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/80000s
    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 CFexA or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-II
    Connectivity Specs Ricoh GR IIIx Sony A9 III
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 3.0 USB 3.2
    HDMI Port no HDMI full HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Ricoh GR IIIx Sony A9 III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Ricoh DB-110 Sony NP-FZ100
    Battery Life (CIPA)200 shots per charge530 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 109 x 62 x 35 mm
    (4.3 x 2.4 x 1.4 in)
    136 x 97 x 83 mm
    (5.4 x 3.8 x 3.3 in)
    Camera Weight 262 g (9.2 oz) 702 g (24.8 oz)
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    Check GR IIIx price at
    amazon.com
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    Check A9 III price at
    amazon.com

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