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Panasonic GX85 versus Panasonic GM5

The Panasonic Lumix DMC-GX85 (called Panasonic GX80 in some regions) and the Panasonic Lumix DMC-GM5 are two digital cameras that were announced, respectively, in April 2016 and September 2014. Both the GX85 and the GM5 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. Both cameras offer a resolution of 15.8 megapixel. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Panasonic GX85 vs Panasonic GM5

The physical size and weight of the Panasonic GX85 and the Panasonic GM5 are illustrated 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 size dimensions are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the GX85 – represents 100 percent across all the size and weight measures).

Compare Panasonic GX85 vs Panasonic GM5
Compare GX85 versus GM5 top
Compare GX85 and GM5 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GM5 is considerably smaller (31 percent) than the Panasonic GX85. Moreover, the GM5 is substantially lighter (50 percent) than the GX85. In this context, it is worth noting that neither the GX85 nor the GM5 are weather-sealed.

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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can find an overview of suitable optics in the Micro Four Thirds Lens Catalog. 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 GX85 gets 290 shots out of its DMW-BLG10 battery, while the GM5 can take 220 images on a single charge of its DMW-BLH7 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Panasonic GX85» 122 mm 71 mm 44 mm 426 g 290 n Apr 2016 799 i i Panasonic GX85
Panasonic GM5« 99 mm 60 mm 36 mm 211 g 220 n Sep 2014 749- i Panasonic GM5
Olympus E-PL8« » 115 mm 67 mm 38 mm 357 g 350 n Sep 2016 549- i Olympus E-PL8
Olympus E-M10 II« » 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 799- i Olympus E-M10 II
Olympus E-M10« » 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699- i Olympus E-M10
Olympus E-PL7« » 115 mm 67 mm 38 mm 357 g 350 n Aug 2014 599- i Olympus E-PL7
Panasonic GX9« » 124 mm 72 mm 47 mm 407 g 260 n Feb 2018 849 i i Panasonic GX9
Panasonic G85« » 128 mm 89 mm 74 mm 505 g 330 Y Sep 2016 899 i i Panasonic G85
Panasonic G7« » 125 mm 86 mm 77 mm 410 g 350 n May 2015 649- i Panasonic G7
Panasonic GX8« » 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199- i Panasonic GX8
Panasonic G6« » 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599- i Panasonic G6
Panasonic GM1« » 99 mm 55 mm 30 mm 204 g 230 n Oct 2013 749- i Panasonic GM1
Panasonic GX7« » 123 mm 71 mm 55 mm 402 g 350 n Aug 2013 999- i Panasonic GX7
Ricoh GR II« » 117 mm 63 mm 35 mm 251 g 320 n Jun 2015 699 i i Ricoh GR II
Ricoh GR« » 117 mm 61 mm 35 mm 245 g 290 n Apr 2013 799- i Ricoh GR

The camera’s price is obviously a critical decision-making factor. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The GM5 was somewhat cheaper (by 6 percent) than the GX85 at launch, but both cameras fall into the same price category. 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.

 

Sensor comparison: Panasonic GX85 vs Panasonic GM5

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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.

Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Panasonic GX85 and Panasonic GM5 sensor measures

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 15.8 megapixel. This similarity in sensor specs implies that both the GX85 and the GM5 have the same pixel density, as well as the same pixel size. It should, however, be noted that the GX85 is a somewhat more recent model (by 1 year and 6 months) than the GM5, and its sensor might have benefitted from technological advances during this time. Coming back to sensor resolution, it should be mentioned that the GX85 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

GX85 versus GM5 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. Of the two cameras under review, the GX85 has a notably higher overall DXO score than the GM5 (overall score 5 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.8 bits higher color depth, 0.9 EV in additional dynamic range, 0.1 stops of reduced low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Panasonic GX85» Four Thirds 15.8 4592 34484K/30p22.912.666271Panasonic GX85
Panasonic GM5« Four Thirds 15.8 4592 34481080/60p22.111.772166Panasonic GM5
Olympus E-PL8« » Four Thirds 15.9 4608 34561080/30p----Olympus E-PL8
Olympus E-M10 II« » Four Thirds 15.9 4608 34561080/60p23.112.584273Olympus E-M10 II
Olympus E-M10« » Four Thirds 15.9 4608 34561080/30p22.812.388472Olympus E-M10
Olympus E-PL7« » Four Thirds 15.9 4608 34561080/30p22.712.487372Olympus E-PL7
Panasonic GX9« » Four Thirds 20.2 5184 38884K/30p----Panasonic GX9
Panasonic G85« » Four Thirds 15.8 4592 34484K/30p22.812.565671Panasonic G85
Panasonic G7« » Four Thirds 15.8 4592 34484K/30p----Panasonic G7
Panasonic GX8« » Four Thirds 20.2 5184 38884K/30p23.512.680675Panasonic GX8
Panasonic G6« » Four Thirds 15.9 4608 34561080/60p21.311.563961Panasonic G6
Panasonic GM1« » Four Thirds 15.8 4592 34481080/60i22.311.766066Panasonic GM1
Panasonic GX7« » Four Thirds 15.8 4592 34481080/60p22.612.271870Panasonic GX7
Ricoh GR II« » APS-C 16.1 4928 32641080/30p23.613.7107880Ricoh GR II
Ricoh GR« » APS-C 16.1 4928 32641080/30p23.613.597278Ricoh GR

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the GX85 provides a higher video resolution than the GM5. It can shoot video footage at 4K/30p, while the GM5 is limited to 1080/60p.

 

Feature comparison: Panasonic GX85 vs Panasonic GM5

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the GX85 offers a substantially higher resolution than the one in the GM5 (2765k vs 1166k dots). The adjacent table lists some of the other core features of the Panasonic GX85 and Panasonic GM5 along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or in the dpreview camera hub.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Panasonic GX85»2765 n 3.0 1040 tilting Y 4000 8.0 Y Y Panasonic GX85
Panasonic GM5«1166 n 3.0 921 fixed Y 500 5.8 n n Panasonic GM5
Olympus E-PL8« »- n 3.0 1037 tilting Y 4000 8.0 n Y Olympus E-PL8
Olympus E-M10 II« »2360 n 3.0 1040 tilting Y 4000 8.0 Y Y Olympus E-M10 II
Olympus E-M10« »1440 n 3.0 1037 tilting Y 4000 8.0 Y Y Olympus E-M10
Olympus E-PL7« »- n 3.0 1037 tilting Y 4000 8.0 n Y Olympus E-PL7
Panasonic GX9« »2760 n 3.0 1240 tilting Y 4000 9.0 Y Y Panasonic GX9
Panasonic G85« »2360 n 3.0 1040 swivel Y 4000 9.0 Y Y Panasonic G85
Panasonic G7« »2360 n 3.0 1040 swivel Y 4000 7.0 Y n Panasonic G7
Panasonic GX8« »2360 n 3.0 1040 swivel Y 8000 10.0 n Y Panasonic GX8
Panasonic G6« »1440 n 3.0 1036 swivel Y 4000 7.0 Y n Panasonic G6
Panasonic GM1« »- n 3.0 1036 fixed Y 500 5.0 Y n Panasonic GM1
Panasonic GX7« »2760 n 3.0 1040 tilting Y 8000 5.0 Y Y Panasonic GX7
Ricoh GR II« »- n 3.0 1230 fixed n 4000 4.0 Y n Ricoh GR II
Ricoh GR« »- n 3.0 1230 fixed n 4000 4.0 Y n Ricoh GR

One difference between the cameras concerns the presence of an on-board flash. The GX85 has one, while the GM5 does not. While the build-in flash of the GX85 is not very powerful, it can at times be useful as a fill-in light.

The reported shutter speed and shutter burst refer to the use of the mechanical shutter. In addition, both cameras feature an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (rolling shutter) or shooting under artificial light sources (flickering).

Both the GX85 and the GM5 write their imaging data to SDXC cards.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
Panasonic GX85»Ystereomono--micro2.0YY-Panasonic GX85
Panasonic GM5«Ystereomono--micro2.0Y--Panasonic GM5
Olympus E-PL8« »Ystereomono--micro2.0Y--Olympus E-PL8
Olympus E-M10 II« »Ystereomono--micro2.0Y--Olympus E-M10 II
Olympus E-M10« »Ystereomono--micro2.0Y--Olympus E-M10
Olympus E-PL7« »Ystereomono--micro2.0Y--Olympus E-PL7
Panasonic GX9« »Ystereomono--micro2.0Y-YPanasonic GX9
Panasonic G85« »YstereomonoY-micro2.0Y--Panasonic G85
Panasonic G7« »YstereomonoY-micro2.0Y--Panasonic G7
Panasonic GX8« »YstereomonoY-micro2.0YY-Panasonic GX8
Panasonic G6« »YstereomonoY-mini2.0YY-Panasonic G6
Panasonic GM1« »-stereomono--micro2.0Y--Panasonic GM1
Panasonic GX7« »Ystereomono--mini2.0YY-Panasonic GX7
Ricoh GR II« »Ystereomono--micro2.0YY-Ricoh GR II
Ricoh GR« »Ymonomono--micro2.0---Ricoh GR

The GX85 is a recent model that features in the current product line-up of Panasonic. In contrast, the GM5 has been discontinued (but it can be found pre-owned on eBay). There has not been a direct replacement model for the GM5 from Panasonic.

Review summary: Panasonic GX85 vs Panasonic GM5

So what is the bottom line? Is the Panasonic GX85 better than the Panasonic GM5 or vice versa? The listing below highlights the relative strengths of the two models.


Advantages of the Panasonic Lumix DMC-GX85:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores markedly higher (5 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (0.9 EV of extra DR).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (2765k vs 1166k dots).
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (4000/sec vs 500/sec) to freeze action.
  • Faster burst: Shoots at higher frequency (8 vs 5.8 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (290 versus 220) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization build-in.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More modern: Is somewhat more recent (announced 1 year and 6 months after the GM5).


Arguments in favor of the Panasonic Lumix DMC-GM5:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More compact: Is smaller (99x60mm vs 122x71mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 215g or 50 percent) and is thus easier to take along.
  • More heavily discounted: Has been on the market for longer (launched in September 2014).

If the count of relative strengths (bullet points above) is taken as a measure, the GX85 is the clear winner of the match-up (14 : 4 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.

GX85 14:04 GM5

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the GX85 or the GM5. 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. This is why hands-on reviews by experts are important. The following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Panasonic GX85»HiRec82/1005/54.5/55/5 Apr 2016 799 i i Panasonic GX85
Panasonic GM5«Rec77/1005/55/54.5/5 Sep 2014 749- i Panasonic GM5
Olympus E-PL8« »--4.5/5-4/5 Sep 2016 549- i Olympus E-PL8
Olympus E-M10 II« »HiRec80/1005/55/55/5 Aug 2015 799- i Olympus E-M10 II
Olympus E-M10« »-80/1005/54.5/55/5 Jan 2014 699- i Olympus E-M10
Olympus E-PL7« »Rec-5/54.5/54/5 Aug 2014 599- i Olympus E-PL7
Panasonic GX9« »Rec84/1004.5/54.5/54.5/5 Feb 2018 849 i i Panasonic GX9
Panasonic G85« »HiRec84/1005/54.5/54.5/5 Sep 2016 899 i i Panasonic G85
Panasonic G7« »HiRec80/1005/54.5/54.5/5 May 2015 649- i Panasonic G7
Panasonic GX8« »Rec82/1004.5/55/54.5/5 Jul 2015 1,199- i Panasonic GX8
Panasonic G6« »HiRec-5/5-4.5/5 Apr 2013 599- i Panasonic G6
Panasonic GM1« »Rec78/1005/54.5/54.5/5 Oct 2013 749- i Panasonic GM1
Panasonic GX7« »Rec79/1005/54.5/55/5 Aug 2013 999- i Panasonic GX7
Ricoh GR II« »--4.5/54.5/54.5/5 Jun 2015 699 i i Ricoh GR II
Ricoh GR« »-79/1004.5/54.5/54.5/5 Apr 2013 799- i Ricoh GR

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

 

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If the camera you are interested in is not available, please contact me, and I will try to locate and add the respective data to the application.

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