YI M1 versus Panasonic GX850
The YI M1 and the Panasonic Lumix DMC-GX850 (labelled Panasonic GX800 in some countries) are two digital cameras that were revealed to the public, respectively, in September 2016 and January 2017. Both the M1 and the GX850 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The YI has a resolution of 20.2 megapixel, whereas the Panasonic provides 15.8 MP.
The physical size and weight of the YI M1 and the Panasonic GX850 are illustrated in the side-by-side display below. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the M1 – represents the basis for the calculations across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX850 is somewhat smaller (5 percent) than the YI M1. Moreover, the GX850 is slightly lighter (4 percent) than the M1. In this context, it is worth noting that neither the M1 nor the GX850 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.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 comparisons there.
|Camera Body Specifications
|YI M1 (⇒ rgt)||114 mm||64 mm||34 mm||281 g||450||no||2016||349||latest||check|
|Panasonic GX850 (⇒ lft)||107 mm||65 mm||33 mm||269 g||210||no||2017||549||latest||check|
|Canon SX730 (⇒ lft | rgt)||110 mm||64 mm||40 mm||300 g||250||no||2017||399||latest||check|
|Canon M100 (⇒ lft | rgt)||108 mm||67 mm||35 mm||302 g||295||no||2017||499||latest||check|
|Canon G7 X Mark II (⇒ lft | rgt)||106 mm||61 mm||42 mm||319 g||265||no||2016||699||latest||check|
|Canon M10 (⇒ lft | rgt)||108 mm||67 mm||35 mm||301 g||255||no||2015||499||discont.||check|
|Fujifilm X-E3 (⇒ lft | rgt)||121 mm||74 mm||43 mm||337 g||350||no||2017||899||latest||check|
|Fujifilm X-A3 (⇒ lft | rgt)||117 mm||67 mm||40 mm||339 g||410||no||2016||399||latest||check|
|Fujifilm X-A10 (⇒ lft | rgt)||117 mm||67 mm||40 mm||331 g||410||no||2016||399||latest||check|
|Panasonic G7 (⇒ lft | rgt)||125 mm||86 mm||77 mm||410 g||350||no||2015||649||discont.||check|
|Panasonic GF7 (⇒ lft | rgt)||107 mm||65 mm||33 mm||266 g||230||no||2015||499||discont.||check|
|Panasonic GF6 (⇒ lft | rgt)||111 mm||65 mm||38 mm||323 g||340||no||2013||499||discont.||check|
|Panasonic G6 (⇒ lft | rgt)||122 mm||85 mm||71 mm||390 g||340||no||2013||599||discont.||check|
|Panasonic GX1 (⇒ lft | rgt)||116 mm||68 mm||39 mm||318 g||320||no||2011||949||discont.||check|
|Sony RX100 V (⇒ lft | rgt)||102 mm||58 mm||41 mm||299 g||220||no||2016||999||latest||check|
|Sony RX100 IV (⇒ lft | rgt)||102 mm||58 mm||41 mm||298 g||280||no||2015||999||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The M1 was launched at a markedly lower price (by 36 percent) than the GX850, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color depth than smaller pixel-units in a sensor of the same technological generation. 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.
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.
While the two cameras under review share the same sensor size, the M1 offers a higher resolution of 20.2 megapixel, compared with 15.8 MP of the GX850. This megapixel 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 GX850). Moreover, it should be noted that the GX850 is a somewhat more recent model (by 3 months) than the M1, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of individual pixels. Coming back to sensor resolution, it should be mentioned that the GX850 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|YI M1 (⇒ rgt)||Four Thirds||20.2||5184||3888||4K/30p||-||-||-||-|
|Panasonic GX850 (⇒ lft)||Four Thirds||15.8||4592||3448||4K/30p||..||..||..||..|
|Canon SX730 (⇒ lft | rgt)||1/2.3||20.2||5184||3888||1080/60p||-||-||-||-|
|Canon M100 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||23.5||12.9||1272||78|
|Canon G7 X Mark II (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||-||-||-||-|
|Canon M10 (⇒ lft | rgt)||APS-C||17.9||5184||3456||1080/30p||22.2||11.4||753||65|
|Fujifilm X-E3 (⇒ lft | rgt)||APS-C||24.0||6000||4000||4K/30p||-||-||-||-|
|Fujifilm X-A3 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||-||-||-||-|
|Fujifilm X-A10 (⇒ lft | rgt)||APS-C||16.0||4896||3264||1080/30p||-||-||-||-|
|Panasonic G7 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||-||-||-||-|
|Panasonic GF7 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60p||-||-||-||-|
|Panasonic GF6 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
|Panasonic G6 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Panasonic GX1 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|Sony RX100 V (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|Sony RX100 IV (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (4K/30p).
Apart from body and sensor, cameras can and do differ across a variety of features. The M1 and the GX850 are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. The table below summarizes some of the other core capabilities of the YI M1 and Panasonic GX850 in connection with corresponding information for a sample of similar cameras. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.
|YI M1 (⇒ rgt)||no||no||3.0||1040||fixed||YES||4000||5.0||no||no|
|Panasonic GX850 (⇒ lft)||no||no||3.0||1040||tilting||YES||500||10.0||4||no|
|Canon SX730 (⇒ lft | rgt)||no||no||3.0||922||tilting||no||3200||5.9||4||YES|
|Canon M100 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||6.1||5||no|
|Canon G7 X Mark II (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||2000||8.0||7||YES|
|Canon M10 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||4.6||5||no|
|Fujifilm X-E3 (⇒ lft | rgt)||2360||no||3.0||1040||fixed||YES||4000||8.0||no||no|
|Fujifilm X-A3 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||6.0||7||no|
|Fujifilm X-A10 (⇒ lft | rgt)||no||no||3.0||1040||tilting||no||4000||6.0||5||no|
|Panasonic G7 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||4000||7.0||9.3||no|
|Panasonic GF7 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||500||5.8||4||no|
|Panasonic GF6 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||4.2||6.3||no|
|Panasonic G6 (⇒ lft | rgt)||1440||no||3.0||1036||swivel||YES||4000||7.0||10.5||no|
|Panasonic GX1 (⇒ lft | rgt)||no||no||3.0||460||fixed||YES||4000||4.2||7.6||no|
|Sony RX100 V (⇒ lft | rgt)||2359||no||3.0||1229||tilting||no||2000||24.0||10.2||YES|
|Sony RX100 IV (⇒ lft | rgt)||2359||no||3.0||1228||tilting||no||2000||16.0||10.2||YES|
Both the M1 and the GX850 are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The GX850 replaced the earlier Panasonic GF7, while the M1 does not have a direct predecessor.
So what conclusions can be drawn? Is the YI M1 better than the Panasonic GX850 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the YI M1:
- More detail: Offers more megapixels (20.2 vs 15.8MP) with a 13% higher linear resolution.
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Faster shutter: Has higher mechanical shutter speed (4000/sec vs 500/sec) to freeze action.
- Longer lasting: Can take more shots (450 versus 210) on a single battery charge.
- More affordable: Was introduced into a lower priced category (36 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in September 2016).
Advantages of the Panasonic Lumix DMC-GX850:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More modern: Was introduced somewhat (3 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the M1 comes out slightly ahead of the GX850 (6 : 5 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.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the M1 and the GX850 in practical situations. 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. This is why hands-on reviews by experts are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|YI M1 (⇒ rgt)||-||69/100||-||2.5/5||-||2016||349||latest||check|
|Panasonic GX850 (⇒ lft)||Rec||76/100||4.5/5||4/5||4.5/5||2017||549||latest||check|
|Canon SX730 (⇒ lft | rgt)||Rec||-||4/5||-||4/5||2017||399||latest||check|
|Canon M100 (⇒ lft | rgt)||Rec||..||4/5||..||3.5/5||2017||499||latest||check|
|Canon G7 X Mark II (⇒ lft | rgt)||HiRec||81/100 Silver||4.5/5||4/5||4.5/5||2016||699||latest||check|
|Canon M10 (⇒ lft | rgt)||-||-||-||reviewed||4/5||2015||499||discont.||check|
|Fujifilm X-E3 (⇒ lft | rgt)||Rec||84/100 Gold||4.5/5||..||4.5/5||2017||899||latest||check|
|Fujifilm X-A3 (⇒ lft | rgt)||-||74/100||4.5/5||-||4/5||2016||399||latest||check|
|Fujifilm X-A10 (⇒ lft | rgt)||-||-||4/5||-||4/5||2016||399||latest||check|
|Panasonic G7 (⇒ lft | rgt)||HiRec||80/100 Silver||5/5||4.5/5||4.5/5||2015||649||discont.||check|
|Panasonic GF7 (⇒ lft | rgt)||Rec||-||4.5/5||4.5/5||4.5/5||2015||499||discont.||check|
|Panasonic GF6 (⇒ lft | rgt)||HiRec||-||4.5/5||-||4.5/5||2013||499||discont.||check|
|Panasonic G6 (⇒ lft | rgt)||HiRec||-||5/5||-||4.5/5||2013||599||discont.||check|
|Panasonic GX1 (⇒ lft | rgt)||85/100 Rec||77/100 Silver||4.5/5||4.5/5||4.5/5||2011||949||discont.||check|
|Sony RX100 V (⇒ lft | rgt)||HiRec||83/100 Silver||4/5||5/5||4.5/5||2016||999||latest||check|
|Sony RX100 IV (⇒ lft | rgt)||HiRec||85/100 Gold||4/5||4.5/5||4.5/5||2015||999||discont.||check|
The review scores listed above should be treated with care, though. The ratings are only valid when refering to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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.
In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored. If you cannot find the camera you are interested in, please contact me, and I will try to update the database with the necessary infos.
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