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Panasonic G9 II vs Sony A6400

The Panasonic Lumix DC-G9 II and the Sony Alpha A6400 are two enthusiast cameras that were revealed to the public, respectively, in September 2023 and January 2019. Both the G9 II and the A6400 are mirrorless interchangeable lens cameras that are based on a Four Thirds (G9 II) and an APS-C (A6400) sensor. The Panasonic has a resolution of 25 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications
Panasonic G9 II
versus
Sony A6400
Panasonic G9 II   Sony A6400
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
25 MP – Four Thirds sensor 24 MP – APS-C sensor
5.7K/60p Video 4K/30p Video
ISO 100-25,600 ISO 100-32,000 (100 - 102,400)
Electronic viewfinder (3680k dots) Electronic viewfinder (2359k dots)
3.0" LCD – 1840k dots 3.0" LCD – 922k dots
Swivel touchscreen Tilting touchscreen
10 shutter flaps per second 11 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodyWeathersealed body
390 shots per battery charge410 shots per battery charge
134 x 102 x 90 mm, 658 g 120 x 67 x 50 mm, 403 g
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Check G9 II price at
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Check A6400 price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DC-G9 II and the Sony Alpha A6400? 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 G9 II and the Sony A6400 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 measures are rounded to the nearest millimeter.

Size Panasonic G9 II vs Sony A6400
Compare G9 II versus A6400 top
Comparison G9 II or A6400 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A6400 is considerably smaller (41 percent) than the Panasonic G9 II. Moreover, the A6400 is substantially lighter (39 percent) than the G9 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. 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 (G9 II) and the Sony E-Mount Lens Catalog (A6400). 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 G9 II gets 390 shots out of its Panasonic DMW-BLK22 battery, while the A6400 can take 410 images on a single charge of its Sony NP-FW50 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.

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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.
 
Panasonic G9 II 134 mm 102 mm 90 mm 658 g 390 Y Sep 2023 EUR 1 899 amazon.com
2.
 
Sony A6400 120 mm 67 mm 50 mm 403 g 410 Y Jan 2019 EUR 1 049 amazon.com
3.
 
Canon M5 116 mm 89 mm 61 mm 427 g 295 n Sep 2016 EUR 1 129ebay.com
4.
 
Canon M50 116 mm 88 mm 59 mm 390 g 235 n Feb 2018 EUR 779ebay.com
5.
 
Fujifilm X-H2S 136 mm 93 mm 85 mm 660 g 580 Y May 2022 EUR 2 749 amazon.com
6.
 
Nikon Z6 II 134 mm 101 mm 70 mm 705 g 410 Y Oct 2020 EUR 2 199 amazon.com
7.
 
Nikon Zf 144 mm 103 mm 49 mm 710 g 380 Y Sep 2023 EUR 2 499 amazon.com
8.
 
OM System OM-1 135 mm 92 mm 73 mm 599 g 520 Y Feb 2022 EUR 2 199ebay.com
9.
 
Panasonic G9 137 mm 97 mm 92 mm 658 g 400 Y Nov 2017 EUR 1 699ebay.com
10.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 EUR 1 999ebay.com
11.
 
Panasonic GH5 II 139 mm 98 mm 87 mm 727 g 400 Y May 2021 EUR 1 699 amazon.com
12.
 
Panasonic GH6 138 mm 100 mm 100 mm 823 g 360 Y Feb 2022 EUR 2 799 amazon.com
13.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 EUR 1 999 amazon.com
14.
 
Panasonic S5 II 134 mm 102 mm 90 mm 740 g 370 Y Jan 2023 EUR 2 199 amazon.com
15.
 
Sony A6000 120 mm 67 mm 45 mm 344 g 360 n Feb 2014 EUR 549ebay.com
16.
 
Sony A6100 120 mm 67 mm 59 mm 396 g 420 n Aug 2019 EUR 899ebay.com
17.
 
Sony A6300 120 mm 67 mm 49 mm 404 g 400 Y Feb 2016 EUR 1 099ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

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 A6400 was launched at a markedly lower price (by 53 percent) than the G9 II, 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. 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 Panasonic G9 II features a Four Thirds sensor and the Sony A6400 an APS-C sensor. The sensor area in the A6400 is 63 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.5. The sensor in the G9 II has a native 4:3 aspect ratio, while the one in the A6400 offers a 3:2 aspect.

Panasonic G9 II and Sony A6400 sensor measures

Despite having a smaller sensor, the Panasonic G9 II offers a higher resolution of 25 megapixels, compared with 24 MP of the Sony A6400. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.00μm versus 3.91μm for the A6400). However, it should be noted that the G9 II is much more recent (by 4 years and 7 months) than the A6400, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the G9 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

Unlike the A6400, the G9 II has the capacity to capture high quality composite images (100MP) 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 DC-G9 II has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-25600. The corresponding ISO settings for the Sony Alpha A6400 are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 100-102400.

Technology-wise, both cameras are equipped with CMOS (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.

G9 II versus A6400 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"). 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Panasonic G9 II Four Thirds 25.0 5776 43365.7K/60p23.413.5171078
2.
 
Sony A6400 APS-C 24.0 6000 40004K/30p24.013.6143183
3.
 
Canon M5 APS-C 24.0 6000 40001080/60p23.412.4126277
4.
 
Canon M50 APS-C 24.0 6000 40004K/24p23.813.3168481
5.
 
Fujifilm X-H2S APS-C 26.0 6240 41606.2k/30p24.313.9222486
6.
 
Nikon Z6 II Full Frame 24.3 6048 40244K/60p25.014.4330394
7.
 
Nikon Zf Full Frame 24.3 6048 40244K/60p25.414.7324396
8.
 
OM System OM-1 Four Thirds 20.2 5184 38884K/60p23.413.4155377
9.
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p23.112.8113874
10.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
11.
 
Panasonic GH5 II Four Thirds 20.2 5184 38884K/60p23.713.1113679
12.
 
Panasonic GH6 Four Thirds 25.0 5776 43365.7K/60p23.413.4155577
13.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p25.114.5269794
14.
 
Panasonic S5 II Full Frame 24.0 6000 40006K/30p25.414.6315896
15.
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
16.
 
Sony A6100 APS-C 24.0 6000 40004K/30p24.113.6194784
17.
 
Sony A6300 APS-C 24.0 6000 40004K/30p24.413.7143785
Note: DXO values in italics represent estimates based on sensor size and age.

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 G9 II provides a higher video resolution than the A6400. It can shoot video footage at 5.7K/60p, while the Sony is limited to 4K/30p.

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Feature comparison

Beyond 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 G9 II offers a substantially higher resolution than the one in the A6400 (3680k vs 2359k dots). The table below summarizes some of the other core capabilities of the Panasonic G9 II and Sony A6400 in connection with corresponding information for a sample of similar 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.
 
Panasonic G9 II3680 n3.0 / 1840 swivel Y 1/8000s 10.0/s n Y
2.
 
Sony A64002359 n3.0 / 922 tilting Y 1/4000s 11.0/s Y n
3.
 
Canon M52360 n3.2 / 1620 tilting Y 1/4000s 9.0/s Y n
4.
 
Canon M502360 n3.0 / 1040 swivel Y 1/4000s 10.0/s Y n
5.
 
Fujifilm X-H2S5760 Y3.0 / 1620 swivel Y 1/8000s 15.0/s n Y
6.
 
Nikon Z6 II3690 Y3.2 / 2100 tilting Y 1/8000s 14.0/s n Y
7.
 
Nikon Zf3690 n3.2 / 2100 swivel Y 1/8000s 14.0/s n Y
8.
 
OM System OM-15760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
9.
 
Panasonic G93680 Y3.0 / 1040 swivel Y 1/8000s 20.0/s n Y
10.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
11.
 
Panasonic GH5 II3680 n3.0 / 1840 swivel Y 1/8000s 12.0/s n Y
12.
 
Panasonic GH63680 n3.0 / 1840 full-flex Y 1/8000s 14.0/s n Y
13.
 
Panasonic S52360 n3.0 / 1840 swivel Y 1/8000s 7.0/s n Y
14.
 
Panasonic S5 II3680 n3.0 / 1840 swivel Y 1/8000s 9.0/s n Y
15.
 
Sony A60001440 n3.0 / 922 tilting n 1/4000s 11.0/s Y n
16.
 
Sony A61001440 n3.0 / 922 tilting Y 1/4000s 11.0/s Y n
17.
 
Sony A63002359 n3.0 / 922 tilting n 1/4000s 11.0/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the G9 II and the A6400 is in-body image stabilization (IBIS). The G9 II reduces the risk of handshake-induced blur with all attached lenses, while the A6400 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

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 Panasonic G9 II 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.

The G9 II writes its imaging data to SDXC cards, while the A6400 uses SDXC or Memory Stick PRO Duo cards. The G9 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the A6400 only has one slot. The G9 II supports UHS-II cards (on both slots), while the A6400 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 DC-G9 II and Sony Alpha A6400 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.
 
Panasonic G9 IIYstereo / monoYYfull3.2Y-Y
2.
 
Sony A6400Ystereo / monoY-micro2.0YYY
3.
 
Canon M5Ystereo / monoY-mini2.0YYY
4.
 
Canon M50Ystereo / monoY-micro2.0Y-Y
5.
 
Fujifilm X-H2SYstereo / monoYYfull3.0Y-Y
6.
 
Nikon Z6 IIYstereo / monoYYmicro3.2Y-Y
7.
 
Nikon ZfYstereo / monoYYmicro3.2Y-Y
8.
 
OM System OM-1Ystereo / monoYYmicro3.0Y-Y
9.
 
Panasonic G9Ystereo / monoYYfull3.0Y-Y
10.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
11.
 
Panasonic GH5 IIYstereo / monoYYfull3.2Y-Y
12.
 
Panasonic GH6Ystereo / monoYYfull3.2Y-Y
13.
 
Panasonic S5Ystereo / monoYYmicro3.2Y-Y
14.
 
Panasonic S5 IIYstereo / monoYYfull3.2Y-Y
15.
 
Sony A6000Ystereo / mono--micro2.0YY-
16.
 
Sony A6100Ystereo / monoY-micro2.0YYY
17.
 
Sony A6300Ystereo / monoY-micro2.0YY-

It is notable that the G9 II has a headphone jack, which is not present on the A6400 This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Both the G9 II and the A6400 are recent models that are part of the current product line-up. The A6400 replaced the earlier Sony A6300, while the G9 II followed on from the Panasonic G9. Further information on the features and operation of the G9 II and A6400 can be found, respectively, in the Panasonic G9 II Manual (free pdf) or the online Sony A6400 Manual.

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Review summary

So how do things add up? Is there a clear favorite between the Panasonic G9 II and the Sony A6400? Which camera is better? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Panasonic Lumix DC-G9 II:

  • 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 video: Provides higher definition movie capture (5.7K/60p vs 4K/30p).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3680k vs 2359k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.8x vs 0.70x).
  • More detailed LCD: Has a higher resolution rear screen (1840k vs 922k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • 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 4 years and 7 months of technical progress since the A6400 launch.

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Advantages of the Sony Alpha A6400:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • More compact: Is smaller (120x67mm vs 134x102mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 255g or 39 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced into a lower priced category (53 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in January 2019).

If the number of relative strengths (bullet points above) is taken as a guide, the G9 II is the clear winner of the match-up (16 : 11 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.

G9 II 16:11 A6400

How about other alternatives? Do the specifications of the Panasonic G9 II and the Sony A6400 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 G9 II or the A6400. 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Panasonic G9 II5/5..4.5/587/100..4.5/5 Sep 2023 EUR 1 899 amazon.com
2.
 
Sony A64004/5+4/585/1004.5/54/5 Jan 2019 EUR 1 049 amazon.com
3.
 
Canon M54/5+4/582/1004/54/5 Sep 2016 EUR 1 129ebay.com
4.
 
Canon M50..+4/579/100..3.5/5 Feb 2018 EUR 779ebay.com
5.
 
Fujifilm X-H2S5/5+5/590/1005/55/5 May 2022 EUR 2 749 amazon.com
6.
 
Nikon Z6 II4.5/5..4/589/1004.5/54.5/5 Oct 2020 EUR 2 199 amazon.com
7.
 
Nikon Zf4.5/5..4.5/590/1004.5/55/5 Sep 2023 EUR 2 499 amazon.com
8.
 
OM System OM-15/5....87/1005/54.5/5 Feb 2022 EUR 2 199ebay.com
9.
 
Panasonic G9..+ +5/585/1005/55/5 Nov 2017 EUR 1 699ebay.com
10.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 EUR 1 999ebay.com
11.
 
Panasonic GH5 II4.5/5..4.5/585/1004.5/55/5 May 2021 EUR 1 699 amazon.com
12.
 
Panasonic GH65/5+ +5/587/1005/55/5 Feb 2022 EUR 2 799 amazon.com
13.
 
Panasonic S54.5/5+ +4.5/588/1004.5/54.5/5 Sep 2020 EUR 1 999 amazon.com
14.
 
Panasonic S5 II4.5/5+ +5/590/1004.5/55/5 Jan 2023 EUR 2 199 amazon.com
15.
 
Sony A60005/5+4.5/580/1004.5/55/5 Feb 2014 EUR 549ebay.com
16.
 
Sony A6100....4/582/1004/55/5 Aug 2019 EUR 899ebay.com
17.
 
Sony A63004.5/5+..85/1005/55/5 Feb 2016 EUR 1 099ebay.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.

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Check G9 II price at
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Check A6400 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: Panasonic G9 II vs Sony A6400

    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 G9 II Sony A6400
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date September 2023 January 2019
    Launch Price USD 1,899 USD 899
    Sensor Specs Panasonic G9 II Sony A6400
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor APS-C Sensor
    Sensor Size 17.3 x 13.0 mm 23.5 x 15.6 mm
    Sensor Area 224.9 mm2 366.6 mm2
    Sensor Diagonal 21.6 mm 28.2 mm
    Crop Factor 2.0x 1.5x
    Sensor Resolution 25 Megapixels 24 Megapixels
    Image Resolution 5776 x 4336 pixels 6000 x 4000 pixels
    Pixel Pitch 3.00 μm 3.91 μm
    Pixel Density 11.14 MP/cm2 6.55 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 5.7K/60p Video 4K/30p Video
    ISO Setting 100 - 25,600 ISO 100 - 32,000 ISO
    ISO Boost 50 - 25,600 ISO 100 - 102,400 ISO
    Image Processor Venus BIONZ X
    DXO Sensor Quality (score) .. 83
    DXO Color Depth (bits) .. 24
    DXO Dynamic Range (EV) .. 13.6
    DXO Low Light (ISO) .. 1431
    Screen Specs Panasonic G9 II Sony A6400
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.8x 0.70x
    Viewfinder Resolution 3680k dots 2359k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1840k dots 922k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Panasonic G9 II Sony A6400
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 10 shutter flaps/s 11 shutter flaps/s
    Shutter Life Expectancy200 000 actuations200 000 actuations
    Electronic Shutterup to 1/32000sYES
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support Dual UHS-II UHS-I
    Connectivity Specs Panasonic G9 II Sony A6400
    External Flash Hotshoe Hotshoe
    USB Connector USB 3.2 USB 2.0
    HDMI Port full HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Panasonic G9 II Sony A6400
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Panasonic DMW-BLK22 Sony NP-FW50
    Battery Life (CIPA)390 shots per charge410 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 134 x 102 x 90 mm
    (5.3 x 4.0 x 3.5 in)
    120 x 67 x 50 mm
    (4.7 x 2.6 x 2.0 in)
    Camera Weight 658 g (23.2 oz) 403 g (14.2 oz)
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