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Panasonic GM1 vs S1

The Panasonic Lumix DMC-GM1 and the Panasonic Lumix DC-S1 are two digital cameras that were announced, respectively, in October 2013 and February 2019. Both the GM1 and the S1 are mirrorless interchangeable lens cameras that are based on a Four Thirds (GM1) and a full frame (S1) sensor. The GM1 has a resolution of 15.8 megapixels, whereas the S1 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 GM1
versus
Panasonic S1
Panasonic GM1   Panasonic S1
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Leica L mount lenses
15.8 MP – Four Thirds sensor 24 MP – Full Frame sensor
1080/60i Video 4K/60p Video
ISO 200-25,600 ISO 100-51,200 (50 - 204,800)
No viewfinder, LCD framing Electronic viewfinder (5760k dots)
3.0" LCD – 1036k dots 3.2" LCD – 2100k dots
Fixed touchscreen Fully flexible touchscreen
5 shutter flaps per second 9 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
230 shots per battery charge400 shots per battery charge
99 x 55 x 30 mm, 204 g 149 x 110 x 97 mm, 1017 g
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Check GM1 offers at
ebay.com
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Check S1 price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-GM1 and the Panasonic Lumix DC-S1? 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 physical size and weight of the Panasonic GM1 and the Panasonic S1 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

The GM1 can be obtained in three different colors (black, silver, red), while the S1 is only available in black.

Size Panasonic GM1 vs Panasonic S1
Compare GM1 versus S1 top
Comparison GM1 or S1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic S1 is considerably larger (201 percent) than the Panasonic GM1. Moreover, the S1 is substantially heavier (399 percent) than the GM1. It is noteworthy in this context that the S1 is splash and dust-proof, while the GM1 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the GM1 gets 230 shots out of its Panasonic DMW-BLH7 battery, while the S1 can take 400 images on a single charge of its Panasonic DMW-BLJ31 power pack. The power pack in the S1 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. 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
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic GM1 99 mm 55 mm 30 mm 204 g 230 n Oct 2013 749ebay.com
2.
 
Panasonic S1 149 mm 110 mm 97 mm 1017 g 400 Y Feb 2019 2,499 amazon.com
3.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 2,499 amazon.com
4.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 1,999 amazon.com
5.
 
Panasonic S1R 149 mm 110 mm 97 mm 1016 g 380 Y Feb 2019 3,699 amazon.com
6.
 
Panasonic S1H 151 mm 114 mm 110 mm 1052 g 400 Y May 2019 3,999 amazon.com
7.
 
Panasonic GM5 99 mm 60 mm 36 mm 211 g 220 n Sep 2014 749ebay.com
8.
 
Panasonic LX100 115 mm 66 mm 55 mm 393 g 300 n Sep 2014 899ebay.com
9.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599ebay.com
10.
 
Panasonic GX7 123 mm 71 mm 55 mm 402 g 350 n Aug 2013 999ebay.com
11.
 
Panasonic G5 120 mm 83 mm 71 mm 396 g 320 n Jul 2012 599ebay.com
12.
 
Panasonic GH3 133 mm 93 mm 82 mm 550 g 540 Y Sep 2012 1,299ebay.com
13.
 
Panasonic G3 115 mm 84 mm 47 mm 336 g 270 n May 2011 599ebay.com
14.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 699ebay.com
15.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 n Sep 2010 899ebay.com
16.
 
Ricoh GR 117 mm 61 mm 35 mm 245 g 290 n Apr 2013 799ebay.com
17.
 
Sony A900 156 mm 117 mm 82 mm 895 g 880 Y Sep 2008 2,999ebay.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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The GM1 was launched at a markedly lower price (by 70 percent) than the S1, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Panasonic GM1 features a Four Thirds sensor and the Panasonic S1 a full frame sensor. The sensor area in the S1 is 276 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 GM1 has a native 4:3 aspect ratio, while the one in the S1 offers a 3:2 aspect.

Panasonic GM1 and Panasonic S1 sensor measures

With 24MP, the S1 offers a higher resolution than the GM1 (15.8MP), but the S1 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 3.77μm for the GM1) due to its larger sensor. Moreover, the S1 is a much more recent model (by 5 years and 3 months) than the GM1, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the S1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Panasonic S1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the S1 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Panasonic GM1 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.

Unlike the GM1, the S1 has the capacity to capture high quality composite images (96MP) 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-GM1 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 125-25600. The corresponding ISO settings for the Panasonic Lumix DC-S1 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

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.

GM1 versus S1 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the S1 offers substantially better image quality than the GM1 (overall score 29 points higher). The advantage is based on 2.9 bits higher color depth, 2.8 EV in additional dynamic range, and 2.3 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 GM1 Four Thirds 15.8 4592 34481080/60i22.311.766066
2.
 
Panasonic S1 Full Frame 24.0 6000 40004K/60p25.214.5333395
3.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
4.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p25.114.5269794
5.
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525100
6.
 
Panasonic S1H Full Frame 24.0 6000 40006K/30p25.214.2280594
7.
 
Panasonic GM5 Four Thirds 15.8 4592 34481080/60p22.111.772166
8.
 
Panasonic LX100 Four Thirds 12.7 4112 30884K/30p22.312.555367
9.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
10.
 
Panasonic GX7 Four Thirds 15.8 4592 34481080/60p22.612.271870
11.
 
Panasonic G5 Four Thirds 15.9 4608 34561080/60p21.411.661861
12.
 
Panasonic GH3 Four Thirds 15.9 4608 34561080/60p22.712.481271
13.
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
14.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
15.
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
16.
 
Ricoh GR APS-C 16.1 4928 32641080/30p23.613.597278
17.
 
Sony A900 Full Frame 24.4 6048 4032none23.712.3143179
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the S1 provides a better video resolution than the GM1. It can shoot movie footage at 4K/60p, while the GM1 is limited to 1080/60i.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the S1 has an electronic viewfinder (5760k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GM1 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Panasonic GM1, the Panasonic S1, and comparable cameras.

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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 GM1none n3.0 / 1036 fixed Y 1/500s 5.0/s Y n
2.
 
Panasonic S15760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
3.
 
Canon R63690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
4.
 
Panasonic S52360 n3.0 / 1840 swivel Y 1/8000s 7.0/s n Y
5.
 
Panasonic S1R5760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
6.
 
Panasonic S1H5760 Y3.2 / 2330 swivel Y 1/8000s 9.0/s n Y
7.
 
Panasonic GM51166 n3.0 / 921 fixed Y 1/500s 5.8/s n n
8.
 
Panasonic LX1002764 n3.0 / 921 fixed n 1/4000s 11.0/s n Y
9.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
10.
 
Panasonic GX72760 n3.0 / 1040 tilting Y 1/8000s 5.0/s Y Y
11.
 
Panasonic G51440 n3.0 / 920 swivel Y 1/4000s 6.0/s Y n
12.
 
Panasonic GH31746 n3.0 / 614 swivel Y 1/4000s 6.0/s Y n
13.
 
Panasonic G31440 n3.0 / 460 swivel Y 1/4000s 4.0/s Y n
14.
 
Panasonic GX1optional n3.0 / 460 fixed Y 1/4000s 4.2/s Y n
15.
 
Panasonic GH21534 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
16.
 
Ricoh GRoptional n3.0 / 1230 fixed n 1/4000s 4.0/s Y n
17.
 
Sony A900optical Y3.0 / 922 fixed n 1/8000s 5.0/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 GM1 has one, while the S1 does not. While the built-in flash of the GM1 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, 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 GM1 and the Panasonic S1 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 GM1 writes its imaging data to SDXC cards, while the S1 uses SDXC or XQD cards. The S1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the GM1 only has one slot. The S1 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the GM1 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 Panasonic Lumix DMC-GM1 and Panasonic Lumix DC-S1 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 GM1-stereo / mono--micro2.0Y--
2.
 
Panasonic S1Ystereo / monoYYfull3.1Y-Y
3.
 
Canon R6Ymono / monoYYmicro3.2Y-Y
4.
 
Panasonic S5Ystereo / monoYYmicro3.2Y-Y
5.
 
Panasonic S1RYstereo / monoYYfull3.1Y-Y
6.
 
Panasonic S1HYstereo / monoYYfull3.1Y-Y
7.
 
Panasonic GM5Ystereo / mono--micro2.0Y--
8.
 
Panasonic LX100Ystereo / mono--micro2.0YY-
9.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
10.
 
Panasonic GX7Ystereo / mono--mini2.0YY-
11.
 
Panasonic G5Ystereo / mono--mini2.0---
12.
 
Panasonic GH3Ystereo / monoYYmini2.0Y--
13.
 
Panasonic G3Ystereo / mono--mini2.0---
14.
 
Panasonic GX1Ystereo / mono--mini2.0---
15.
 
Panasonic GH2Ystereo / monoY-mini2.0---
16.
 
Ricoh GRYmono / mono--micro2.0---
17.
 
Sony A900Y- / ---mini2.0---
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It is notable that the S1 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The GM1 lacks such a headphone port.

Studio photographers will appreciate that the Panasonic S1 (unlike the GM1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The S1 is a recent model that features in the current product line-up of Panasonic. In contrast, the GM1 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the GM1 was succeeded by the Panasonic GM5. Further information on the features and operation of the GM1 and S1 can be found, respectively, in the Panasonic GM1 Manual (free pdf) or the online Panasonic S1 Manual.

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Review summary

So what conclusions can be drawn? Is there a clear favorite between the Panasonic GM1 and the Panasonic S1? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.


Reasons to prefer the Panasonic Lumix DMC-GM1:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More compact: Is smaller (99x55mm vs 149x110mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 813g or 80 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 (70 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in October 2013).


Arguments in favor of the Panasonic Lumix DC-S1:

  • More detail: Has more megapixels (24 vs 15.8MP), which boosts linear resolution by 26%.
  • 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 (29 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.9 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.8 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.3 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/60p vs 1080/60i).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 1036k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/500s) to freeze action.
  • Faster burst: Shoots at higher frequency (9 vs 5 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (400 versus 230) 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.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • 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 5 years and 3 months of technical progress since the GM1 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the S1 is the clear winner of the contest (29 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional 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.

GM1 06:29 S1

How about other alternatives? Do the specifications of the Panasonic GM1 and the Panasonic S1 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 incomplete and does no justice, for example, to the way the GM1 or the S1 perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

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 GM13/5+..78/1005/54.5/5 Oct 2013 749ebay.com
2.
 
Panasonic S14.5/5+ +4.5/588/1004.5/54/5 Feb 2019 2,499 amazon.com
3.
 
Canon R65/5+ +4/590/1004.5/55/5 Jul 2020 2,499 amazon.com
4.
 
Panasonic S54.5/5+ +4.5/588/1004.5/54.5/5 Sep 2020 1,999 amazon.com
5.
 
Panasonic S1R4.5/5..4.6/589/1004.5/54.5/5 Feb 2019 3,699 amazon.com
6.
 
Panasonic S1H....4/590/100.... May 2019 3,999 amazon.com
7.
 
Panasonic GM53.5/5+..77/1005/54.5/5 Sep 2014 749ebay.com
8.
 
Panasonic LX1005/5+ +..85/1005/55/5 Sep 2014 899ebay.com
9.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599ebay.com
10.
 
Panasonic GX74/5+..79/1005/55/5 Aug 2013 999ebay.com
11.
 
Panasonic G53/5+ +....4.5/54.5/5 Jul 2012 599ebay.com
12.
 
Panasonic GH35/5+ +..79/1004.5/54.5/5 Sep 2012 1,299ebay.com
13.
 
Panasonic G33/5+ +..75/1004.5/55/5 May 2011 599ebay.com
14.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 699ebay.com
15.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 899ebay.com
16.
 
Ricoh GR5/5....79/1004.5/54.5/5 Apr 2013 799ebay.com
17.
 
Sony A900..+ +..+ +4.5/55/5 Sep 2008 2,999ebay.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 assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Check GM1 offers at
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Check S1 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 your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Panasonic GM1 vs Panasonic S1

    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 GM1 Panasonic S1
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Leica L mount lenses
    Launch Date October 2013 February 2019
    Launch Price USD 749 USD 2,499
    Sensor Specs Panasonic GM1 Panasonic S1
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.6 x 23.8 mm
    Sensor Area 224.9 mm2 847.28 mm2
    Sensor Diagonal 21.6 mm 42.8 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 15.8 Megapixels 24 Megapixels
    Image Resolution 4592 x 3448 pixels 6000 x 4000 pixels
    Pixel Pitch 3.77 μm 5.94 μm
    Pixel Density 7.04 MP/cm2 2.83 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60i Video 4K/60p Video
    ISO Setting 200 - 25,600 ISO 100 - 51,200 ISO
    ISO Boost 125 - 25,600 ISO 50 - 204,800 ISO
    Image Processor Venus IX Venus
    DXO Sensor Quality (score) 66 95
    DXO Color Depth (bits) 22.3 25.2
    DXO Dynamic Range (EV) 11.7 14.5
    DXO Low Light (ISO) 660 3333
    Screen Specs Panasonic GM1 Panasonic S1
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 5760k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1036k dots 2100k dots
    LCD Attachment Fixed screen Fully flexible screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Panasonic GM1 Panasonic S1
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/500s 1/8000s
    Continuous Shooting 5 shutter flaps/s 9 shutter flaps/s
    Electronic Shutterup to 1/16000sup to 1/8000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC or XQD cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-II
    Connectivity Specs Panasonic GM1 Panasonic S1
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port micro 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 no Bluetooth Bluetooth built-in
    Body Specs Panasonic GM1 Panasonic S1
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Panasonic DMW-BLH7 Panasonic DMW-BLJ31
    Battery Life (CIPA)230 shots per charge400 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 99 x 55 x 30 mm
    (3.9 x 2.2 x 1.2 in)
    149 x 110 x 97 mm
    (5.9 x 4.3 x 3.8 in)
    Camera Weight 204 g (7.2 oz) 1017 g (35.9 oz)
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