Panasonic GM5 vs YI M1
The Panasonic Lumix DMC-GM5 and the YI M1 are two digital cameras that were officially introduced, respectively, in September 2014 and September 2016. Both the GM5 and the M1 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The Panasonic has a resolution of 15.8 megapixels, whereas the YI provides 20.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Panasonic GM5||YI M1|
|Mirrorless system camera||Mirrorless system camera|
|Micro Four Thirds lenses||Micro Four Thirds lenses|
|15.8 MP, Four Thirds Sensor||20.2 MP, Four Thirds Sensor|
|1080/60p Video||4K/30p Video|
|ISO 200-25600||ISO 100-25600|
|Electronic viewfinder (1166k dots)||No viewfinder, LCD framing|
|3.0" LCD, 921k dots||3.0" LCD, 1040k dots|
|Fixed touchscreen||Fixed touchscreen|
|5.8 shutter flaps per second||5 shutter flaps per second|
|220 shots per battery charge||450 shots per battery charge|
|99 x 60 x 36 mm, 211 g||114 x 64 x 34 mm, 281 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-GM5 and the YI M1? 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.
The side-by-side display below illustrates the physical size and weight of the Panasonic GM5 and the YI M1. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.
Both cameras are available in two different colors (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the YI M1 is notably larger (23 percent) than the Panasonic GM5. Moreover, the M1 is markedly heavier (33 percent) than the GM5. In this context, it is worth noting that neither the GM5 nor the M1 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 compare the optics available 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.
The power pack in the M1 can be charged via the USB port, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Panasonic GM5»||3.9 in||2.4 in||1.4 in||7.4 oz||220||n||Sep 2014||749||Panasonic GM5|
|YI M1«||4.5 in||2.5 in||1.3 in||9.9 oz||450||n||Sep 2016||349||YI M1|
|Canon SX730« »||4.3 in||2.5 in||1.6 in||10.6 oz||250||n||Apr 2017||399||Canon SX730|
|Fujifilm X-A3« »||4.6 in||2.6 in||1.6 in||12.0 oz||410||n||Aug 2016||399||Fujifilm X-A3|
|Nikon 1 J5« »||3.9 in||2.4 in||1.3 in||8.1 oz||250||n||Apr 2015||399||Nikon 1 J5|
|Panasonic GX850« »||4.2 in||2.6 in||1.3 in||9.5 oz||210||n||Jan 2017||549||Panasonic GX850|
|Panasonic GX85« »||4.8 in||2.8 in||1.7 in||15.0 oz||290||n||Apr 2016||799||Panasonic GX85|
|Panasonic G7« »||4.9 in||3.4 in||3.0 in||14.5 oz||350||n||May 2015||649||Panasonic G7|
|Panasonic GF7« »||4.2 in||2.6 in||1.3 in||9.4 oz||230||n||Jan 2015||499||Panasonic GF7|
|Panasonic GH4« »||5.2 in||3.7 in||3.3 in||19.8 oz||500||Y||Feb 2014||1,499||Panasonic GH4|
|Panasonic LX100« »||4.5 in||2.6 in||2.2 in||13.9 oz||300||n||Sep 2014||899||Panasonic LX100|
|Panasonic G6« »||4.8 in||3.3 in||2.8 in||13.8 oz||340||n||Apr 2013||599||Panasonic G6|
|Panasonic GM1« »||3.9 in||2.2 in||1.2 in||7.2 oz||230||n||Oct 2013||749||Panasonic GM1|
|Panasonic GX1« »||4.6 in||2.7 in||1.5 in||11.2 oz||320||n||Nov 2011||699||Panasonic GX1|
|Panasonic GH2« »||4.9 in||3.5 in||3.0 in||15.6 oz||330||n||Sep 2010||899||Panasonic GH2|
|Ricoh GR II« »||4.6 in||2.5 in||1.4 in||8.9 oz||320||n||Jun 2015||699||Ricoh GR II|
|Ricoh GR« »||4.6 in||2.4 in||1.4 in||8.6 oz||290||n||Apr 2013||799||Ricoh GR|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. 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 M1 was launched at a markedly lower price (by 53 percent) than the GM5, 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.
The size of the sensor inside a digital camera is one of the key determinants 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 tend to be more expensive and 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.
In terms of underlying technology, both cameras are build around CMOS sensors.
While the two cameras under review share the same sensor size, the M1 offers a higher resolution of 20.2 megapixels, compared with 15.8 MP of the GM5. This megapixels advantage translates into a 13 percent gain in linear resolution. On the other hand, these sensor specs imply that the M1 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 3.77μm for the GM5). However, it should be noted that the M1 is much more recent (by 2 years) than the GM5, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size.
The resolution advantage of the YI M1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M1 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inch or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inch or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inch or 43.9 x 32.9 cm. The corresponding values for the Panasonic GM5 are 23 x 17.2 inch or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inch or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inch or 38.9 x 29.2 cm for excellent quality prints.
The Panasonic Lumix DMC-GM5 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the YI M1 are ISO 100 to ISO 25600 (no boost).
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. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Panasonic GM5||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66||Panasonic GM5|
|YI M1||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..||YI M1|
|Canon SX730||1/2.3||20.2||5184||3888||1080/60p||..||..||..||..||Canon SX730|
|Fujifilm X-A3||APS-C||24.0||6000||4000||1080/60p||..||..||..||..||Fujifilm X-A3|
|Nikon 1 J5||1-inch||20.7||5568||3712||4K/15p||21.1||12.0||479||65||Nikon 1 J5|
|Panasonic GX850||Four Thirds||15.8||4592||3448||4K/30p||23.2||13.3||586||73||Panasonic GX850|
|Panasonic GX85||Four Thirds||15.8||4592||3448||4K/30p||22.9||12.6||662||71||Panasonic GX85|
|Panasonic G7||Four Thirds||15.8||4592||3448||4K/30p||..||..||..||..||Panasonic G7|
|Panasonic GF7||Four Thirds||15.8||4592||3448||1080/60p||..||..||..||..||Panasonic GF7|
|Panasonic GH4||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74||Panasonic GH4|
|Panasonic LX100||Four Thirds||12.7||4112||3088||4K/30p||22.3||12.5||553||67||Panasonic LX100|
|Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61||Panasonic G6|
|Panasonic GM1||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66||Panasonic GM1|
|Panasonic GX1||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55||Panasonic GX1|
|Panasonic GH2||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60||Panasonic GH2|
|Ricoh GR II||APS-C||16.1||4928||3264||1080/30p||23.6||13.7||1078||80||Ricoh GR II|
|Ricoh GR||APS-C||16.1||4928||3264||1080/30p||23.6||13.5||972||78||Ricoh GR|
Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the M1 provides a better video resolution than the GM5. It can shoot movie footage at 4K/30p, while the Panasonic is limited to 1080/60p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the GM5 has an electronic viewfinder (1166k dots), which can be very helpful when shooting in bright sunlight. In contrast, the M1 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Panasonic GM5 and YI M1 along with similar information for a selection of comparators.
|Panasonic GM5||1166||n||3.0||921||fixed||Y||1/500s||5.8||n||n||Panasonic GM5|
|YI M1||none||n||3.0||1040||fixed||Y||1/4000s||5.0||n||n||YI M1|
|Canon SX730||none||n||3.0||922||tilting||n||1/3200s||5.9||Y||Y||Canon SX730|
|Fujifilm X-A3||none||n||3.0||1040||tilting||Y||1/4000s||6.0||Y||n||Fujifilm X-A3|
|Nikon 1 J5||none||n||3.0||1037||tilting||Y||1/4000s||60.0||Y||n||Nikon 1 J5|
|Panasonic GX850||none||n||3.0||1040||tilting||Y||1/500s||10.0||Y||n||Panasonic GX850|
|Panasonic GX85||2765||n||3.0||1040||tilting||Y||1/4000s||8.0||Y||Y||Panasonic GX85|
|Panasonic G7||2360||n||3.0||1040||swivel||Y||1/4000s||7.0||Y||n||Panasonic G7|
|Panasonic GF7||none||n||3.0||1040||tilting||Y||1/500s||5.8||Y||n||Panasonic GF7|
|Panasonic GH4||2359||n||3.0||1036||swivel||Y||1/8000s||12.0||Y||n||Panasonic GH4|
|Panasonic LX100||2764||n||3.0||921||fixed||n||1/4000s||11.0||n||Y||Panasonic LX100|
|Panasonic G6||1440||n||3.0||1036||swivel||Y||1/4000s||7.0||Y||n||Panasonic G6|
|Panasonic GM1||none||n||3.0||1036||fixed||Y||1/500s||5.0||Y||n||Panasonic GM1|
|Panasonic GX1||optional||n||3.0||460||fixed||Y||1/4000s||4.2||Y||n||Panasonic GX1|
|Panasonic GH2||1534||n||3.0||460||swivel||n||1/4000s||3.0||Y||n||Panasonic GH2|
|Ricoh GR II||optional||n||3.0||1230||fixed||n||1/4000s||4.0||Y||n||Ricoh GR II|
|Ricoh GR||optional||n||3.0||1230||fixed||n||1/4000s||4.0||Y||n||Ricoh GR|
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 GM5 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 Panasonic GM5 and the YI M1 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.
Concerning the storage of imaging data, both the GM5 and the M1 write their files to SDXC cards. The GM5 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the M1 cannot take advantage of Ultra High Speed SD cards.
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-GM5 and YI M1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Panasonic GM5||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic GM5|
|YI M1||Y||stereo||mono||-||-||micro||2.0||Y||-||Y||YI M1|
|Canon SX730||-||stereo||mono||-||-||micro||2.0||Y||Y||Y||Canon SX730|
|Fujifilm X-A3||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Fujifilm X-A3|
|Nikon 1 J5||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Nikon 1 J5|
|Panasonic GX850||-||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic GX850|
|Panasonic GX85||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic GX85|
|Panasonic G7||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Panasonic G7|
|Panasonic GF7||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Panasonic GF7|
|Panasonic GH4||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Panasonic GH4|
|Panasonic LX100||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Panasonic LX100|
|Panasonic G6||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Panasonic G6|
|Panasonic GM1||-||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic GM1|
|Panasonic GX1||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic GX1|
|Panasonic GH2||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Panasonic GH2|
|Ricoh GR II||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Ricoh GR II|
|Ricoh GR||Y||mono||mono||-||-||micro||2.0||-||-||-||Ricoh GR|
The M1 is a recent model that features in the current product line-up of YI. 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. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic and YI websites.
So how do things add up? Which of the two cameras – the Panasonic GM5 or the YI M1 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Panasonic Lumix DMC-GM5:
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- Faster burst: Shoots at higher frequency (5.8 vs 5 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (99x60mm vs 114x64mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 70g or 25 percent) and hence easier to carry around.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More heavily discounted: Has been available for much longer (launched in September 2014).
Advantages of the YI M1:
- More detail: Has more megapixels (20.2 vs 15.8MP), which boosts linear resolution by 13%.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/500s) to freeze action.
- Longer lasting: Gets more shots (450 versus 220) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced into a lower priced category (53 percent cheaper at launch).
- More modern: Reflects 2 years of technical progress since the GM5 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the M1 comes out slightly ahead of the GM5 (8 : 7 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 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.
How about other alternatives? Do the specifications of the Panasonic GM5 and the YI M1 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the GM5 or the M1. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
Care should be taken when interpreting the review scores above, 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
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.
Specifications: Panasonic GM5 vs YI M1
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 Model||Panasonic GM5||YI M1|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||September 2014||September 2016|
|Launch Price||USD 749||USD 349|
|Sensor Specs||Panasonic GM5||YI M1|
|Sensor Format||Four Thirds Sensor||Four Thirds Sensor|
|Sensor Size||17.3 x 13.0 mm||17.3 x 13.0 mm|
|Sensor Area||224.9 mm2||224.9 mm2|
|Sensor Diagonal||21.6 mm||21.6 mm|
|Sensor Resolution||15.8 Megapixels||20.2 Megapixels|
|Image Resolution||4592 x 3448 pixels||5184 x 3888 pixels|
|Pixel Pitch||3.77 μm||3.34 μm|
|Pixel Density||7.04 MP/cm2||8.96 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||4K/30p Video|
|ISO Setting||200-25600 ISO||100-25600 ISO|
|ISO Boost||100-25600 ISO||no Enhancement|
|DXO Sensor Quality (score)||66||..|
|DXO Color Depth (bits)||22.1||..|
|DXO Dynamic Range (EV)||11.7||..|
|DXO Low Light (ISO)||721||..|
|Screen Specs||Panasonic GM5||YI M1|
|Viewfinder Type||Electronic viewfinder||No viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||1166k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||921k dots||1040k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Panasonic GM5||YI M1|
|Autofocus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/500/s||1/4000/s|
|Continuous Shooting||5.8 shutter flaps/s||5 shutter flaps/s|
|Electronic Shutter||up to 1/16000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Panasonic GM5||YI M1|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Panasonic GM5||YI M1|
|Battery Life (CIPA)||220 shots per charge||450 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
99 x 60 x 36 mm
(3.9 x 2.4 x 1.4 in)
114 x 64 x 34 mm
(4.5 x 2.5 x 1.3 in)
|Camera Weight||211 g (7.4 oz)||281 g (9.9 oz)|
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