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Panasonic GX1 vs Sony A7R IV

The Panasonic Lumix DMC-GX1 and the Sony Alpha A7R IV are two enthusiast cameras that were revealed to the public, respectively, in November 2011 and July 2019. Both the GX1 and the A7R IV are mirrorless interchangeable lens cameras that are based on a Four Thirds (GX1) and a full frame (A7R IV) sensor. The Panasonic has a resolution of 15.8 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
Panasonic GX1
versus
Sony A7R IV
Panasonic GX1   Sony A7R IV
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
15.8 MP – Four Thirds sensor 60.2 MP – Full Frame sensor
1080/60p Video 4K/30p Video
ISO 160-12,800 ISO 100-32,000 (50 - 102,400)
Viewfinder optional Electronic viewfinder (5760k dots)
3.0" LCD – 460k dots 3.0" LCD – 1440k dots
Fixed touchscreen Tilting touchscreen
4.2 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
320 shots per battery charge670 shots per battery charge
116 x 68 x 39 mm, 318 g 129 x 96 x 78 mm, 665 g
logo
Check GX1 offers at
ebay.com
logo
Check A7R IV offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-GX1 and the Sony Alpha A7R IV? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

An illustration of the physical size and weight of the Panasonic GX1 and the Sony A7R IV is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Panasonic GX1 vs Sony A7R IV
Compare GX1 versus A7R IV top
Comparison GX1 or A7R IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R IV is considerably larger (57 percent) than the Panasonic GX1. Moreover, the A7R IV is substantially heavier (109 percent) than the GX1. It is noteworthy in this context that the A7R IV is splash and dust-proof, while the GX1 does not feature any corresponding weather-sealing.

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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (GX1) and the Sony FE Lens Catalog (A7R IV). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the GX1 gets 320 shots out of its Panasonic DMW-BLD10 battery, while the A7R IV can take 670 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A7R IV can be charged via the USB port, 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 would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 699ebay.com
2.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
3.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599ebay.com
4.
 
Panasonic GM1 99 mm 55 mm 30 mm 204 g 230 n Oct 2013 749ebay.com
5.
 
Panasonic G5 120 mm 83 mm 71 mm 396 g 320 n Jul 2012 599ebay.com
6.
 
Panasonic GF5 108 mm 67 mm 37 mm 267 g 360 n Apr 2012 499ebay.com
7.
 
Panasonic G3 115 mm 84 mm 47 mm 336 g 270 n May 2011 599ebay.com
8.
 
Panasonic GF3 108 mm 67 mm 32 mm 264 g 300 n Jun 2011 549ebay.com
9.
 
Panasonic G2 124 mm 84 mm 74 mm 428 g 360 n Mar 2010 599ebay.com
10.
 
Panasonic GF2 113 mm 68 mm 33 mm 310 g 300 n Nov 2010 549ebay.com
11.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 n Sep 2010 899ebay.com
12.
 
Panasonic GF1 119 mm 71 mm 36 mm 385 g 380 n Sep 2009 749ebay.com
13.
 
Sony A7R IVA 129 mm 96 mm 78 mm 665 g 670 Y Apr 2021 3,499 amazon.com
14.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 amazon.com
15.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 4,499 amazon.com
16.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
17.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.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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The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The GX1 was launched at a markedly lower price (by 80 percent) than the A7R IV, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will 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. 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 Panasonic GX1 features a Four Thirds sensor and the Sony A7R IV a full frame sensor. The sensor area in the A7R IV is 278 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the GX1 has a native 4:3 aspect ratio, while the one in the A7R IV offers a 3:2 aspect.

Panasonic GX1 and Sony A7R IV sensor measures

With 60.2MP, the A7R IV offers a higher resolution than the GX1 (15.8MP), but the A7R IV has marginally smaller individual pixels (pixel pitch of 3.76μm versus 3.77μm for the GX1). Yet, the A7R IV is a much more recent model (by 7 years and 8 months) than the GX1, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A7R IV has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R IV for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 cm. The corresponding values for the Panasonic GX1 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.

The A7R IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the GX1, the A7R IV has the capacity to capture high quality composite images (241MP) 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 Panasonic Lumix DMC-GX1 has a native sensitivity range from ISO 160 to ISO 12800. The corresponding ISO settings for the Sony Alpha A7R IV are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

In terms of underlying technology, the GX1 is build around a CMOS sensor, while the A7R IV uses a BSI-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.

GX1 versus A7R IV MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the A7R IV offers substantially better image quality than the GX1 (overall score 44 points higher). The advantage is based on 5.2 bits higher color depth, 4.2 EV in additional dynamic range, and 2.2 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
2.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
3.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
4.
 
Panasonic GM1 Four Thirds 15.8 4592 34481080/60i22.311.766066
5.
 
Panasonic G5 Four Thirds 15.9 4608 34561080/60p21.411.661861
6.
 
Panasonic GF5 Four Thirds 12.0 4000 30001080/60i20.510.057350
7.
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
8.
 
Panasonic GF3 Four Thirds 12.0 4000 30001080/60i20.610.145950
9.
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
10.
 
Panasonic GF2 Four Thirds 12.0 4000 30001080/60i21.210.350654
11.
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
12.
 
Panasonic GF1 Four Thirds 12.0 4000 3000720/30p21.210.351354
13.
 
Sony A7R IVA Full Frame 60.2 9504 63364K/30p26.014.8334499
14.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
15.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
16.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
17.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
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Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A7R IV provides a better video resolution than the GX1. It can shoot movie footage at 4K/30p, while the Panasonic is limited to 1080/60p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7R IV has an electronic viewfinder (5760k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GX1 relies on live view and the rear LCD for framing. That said, the GX1 can be equipped with an optional viewfinder – the DMW-LVF2. The adjacent table lists some of the other core features of the Panasonic GX1 and Sony A7R IV along with similar information for a selection of comparators.

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Core Features
# image 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.
 
Panasonic GX1optional n3.0 / 460 fixed Y 1/4000s 4.2/s Y n
2.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
3.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
4.
 
Panasonic GM1none n3.0 / 1036 fixed Y 1/500s 5.0/s Y n
5.
 
Panasonic G51440 n3.0 / 920 swivel Y 1/4000s 6.0/s Y n
6.
 
Panasonic GF5none n3.0 / 920 fixed Y 1/4000s 4.0/s Y n
7.
 
Panasonic G31440 n3.0 / 460 swivel Y 1/4000s 4.0/s Y n
8.
 
Panasonic GF3none n3.0 / 460 fixed Y 1/4000s 3.2/s Y n
9.
 
Panasonic G21440 n3.0 / 460 swivel Y 1/4000s 2.6/s Y n
10.
 
Panasonic GF2optional n3.0 / 460 fixed Y 1/4000s 2.6/s Y n
11.
 
Panasonic GH21534 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
12.
 
Panasonic GF1optional n3.0 / 460 fixed n 1/4000s 3.0/s Y n
13.
 
Sony A7R IVA5760 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
15.
 
Sony A9 II3686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
16.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
17.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The GX1 has one, while the A7R IV does not. While the built-in flash of the GX1 is not very powerful, it can at times be useful as a fill-in light.

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 A7R IV 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 Sony A7R IV has 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 GX1 and the A7R IV write their files to SDXC cards. The A7R IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the GX1 only has one slot. The A7R IV supports UHS-II cards (on both slots), while the GX1 can use UHS-I cards.

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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 Panasonic Lumix DMC-GX1 and Sony Alpha A7R IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Panasonic GX1Ystereo / mono--mini2.0---
2.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
3.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
4.
 
Panasonic GM1-stereo / mono--micro2.0Y--
5.
 
Panasonic G5Ystereo / mono--mini2.0---
6.
 
Panasonic GF5-stereo / mono--mini2.0---
7.
 
Panasonic G3Ystereo / mono--mini2.0---
8.
 
Panasonic GF3-stereo / mono--mini2.0---
9.
 
Panasonic G2Ystereo / mono--mini2.0---
10.
 
Panasonic GF2Ystereo / mono--mini2.0---
11.
 
Panasonic GH2Ystereo / monoY-mini2.0---
12.
 
Panasonic GF1Ymono / mono--mini2.0---
13.
 
Sony A7R IVAYstereo / monoYYmicro3.2YYY
14.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
15.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY
16.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
17.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
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It is notable that the A7R IV offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the GX1 does not provide wifi capability.

Studio photographers will appreciate that the Sony A7R IV (unlike the GX1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the GX1 and the A7R IV have been discontinued, but can regularly be found used on ebay. The GX1 was replaced by the Panasonic GX7, while the A7R IV was followed by the Sony A7R V. Further information on the features and operation of the GX1 and A7R IV can be found, respectively, in the Panasonic GX1 Manual (free pdf) or the online Sony A7R IV Manual.

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Review summary

So how do things add up? Is there a clear favorite between the Panasonic GX1 and the Sony A7R IV? Which camera is better? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Panasonic Lumix DMC-GX1:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More compact: Is smaller (116x68mm vs 129x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 347g or 52 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (80 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in November 2011).

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Advantages of the Sony Alpha A7R IV:

  • More detail: Has more megapixels (60.2 vs 15.8MP), which boosts linear resolution by 99%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Scores substantially higher (44 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (5.2 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (4.2 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.2 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • 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.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 460k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 4.2 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Gets more shots (670 versus 320) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • 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 7 years and 8 months of technical progress since the GX1 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A7R IV is the clear winner of the contest (30 : 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 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.

GX1 06:30 A7R IV

How about other alternatives? Do the specifications of the Panasonic GX1 and the Sony A7R IV 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 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 GX1 or the A7R IV. 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 why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 699ebay.com
2.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
3.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599ebay.com
4.
 
Panasonic GM13/5+..78/1005/54.5/5 Oct 2013 749ebay.com
5.
 
Panasonic G53/5+ +....4.5/54.5/5 Jul 2012 599ebay.com
6.
 
Panasonic GF53/5......4.5/54.5/5 Apr 2012 499ebay.com
7.
 
Panasonic G33/5+ +..75/1004.5/55/5 May 2011 599ebay.com
8.
 
Panasonic GF33/582/100..71/1004.5/54/5 Jun 2011 549ebay.com
9.
 
Panasonic G2......72/1004/54.5/5 Mar 2010 599ebay.com
10.
 
Panasonic GF23/582/100..70/1004.5/54.5/5 Nov 2010 549ebay.com
11.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 899ebay.com
12.
 
Panasonic GF1..85/100..69/1004.5/54.5/5 Sep 2009 749ebay.com
13.
 
Sony A7R IVA5/5+4.5/591/1004.5/55/5 Apr 2021 3,499 amazon.com
14.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 3,499 amazon.com
15.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 4,499 amazon.com
16.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
17.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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 comparisons of ratings among very different cameras or across long time periods have little meaning. 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 GX1 offers at
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Check A7R IV offers 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: Panasonic GX1 vs Sony A7R IV

    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 Panasonic GX1 Sony A7R IV
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date November 2011 July 2019
    Launch Price USD 699 USD 3,499
    Sensor Specs Panasonic GX1 Sony A7R IV
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.7 x 23.8 mm
    Sensor Area 224.9 mm2 849.66 mm2
    Sensor Diagonal 21.6 mm 42.9 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 15.8 Megapixels 60.2 Megapixels
    Image Resolution 4592 x 3448 pixels 9504 x 6336 pixels
    Pixel Pitch 3.77 μm 3.76 μm
    Pixel Density 7.04 MP/cm2 7.09 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 160 - 12,800 ISO 100 - 32,000 ISO
    ISO Boost no Enhancement 50 - 102,400 ISO
    Image Processor Venus FHD BIONZ X
    DXO Sensor Quality (score) 55 99
    DXO Color Depth (bits) 20.8 26.0
    DXO Dynamic Range (EV) 10.6 14.8
    DXO Low Light (ISO) 703 3344
    Screen Specs Panasonic GX1 Sony A7R IV
    Viewfinder Type Viewfinder optional Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 5760k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 460k dots 1440k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Panasonic GX1 Sony A7R IV
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 4.2 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Dual UHS-II
    Connectivity Specs Panasonic GX1 Sony A7R IV
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port mini HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Panasonic GX1 Sony A7R IV
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Panasonic DMW-BLD10 Sony NP-FZ100
    Battery Life (CIPA)320 shots per charge670 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 116 x 68 x 39 mm
    (4.6 x 2.7 x 1.5 in)
    129 x 96 x 78 mm
    (5.1 x 3.8 x 3.1 in)
    Camera Weight 318 g (11.2 oz) 665 g (23.5 oz)
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