Canon G7 X Mark III vs Canon R6
The Canon PowerShot G7 X Mark III and the Canon EOS R6 are two digital cameras that were revealed to the public, respectively, in July 2019 and July 2020. The G7X Mark III is a fixed lens compact, while the Canon R6 is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (G7X Mark III) and a full frame (Canon R6) sensor. Both cameras offer a resolution of 20 megapixels.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G7 X Mark III and the Canon EOS R6? 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 physical size and weight of the Canon G7 X Mark III and the Canon R6 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.
The G7X Mark III can be obtained in two different colors (black, silver), while the Canon R6 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon R6 is considerably larger (111 percent) than the Canon G7 X Mark III. It is noteworthy in this context that the Canon R6 is splash and dust-proof, while the G7X Mark III does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X Mark III has a lens built in, whereas the Canon R6 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.
Concerning battery life, the G7X Mark III gets 235 shots out of its NB-13L battery, while the Canon R6 can take 360 images on a single charge of its LP-E6NH power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
|1.||Canon G7 X Mark III||105 mm||61 mm||41 mm||304 g||235||n||Jul 2019||749|
|2.||Canon R6||138 mm||98 mm||88 mm||680 g||360||Y||Jul 2020||2,499|
|3.||Canon R5||138 mm||98 mm||88 mm||738 g||320||Y||Jul 2020||3,899|
|4.||Canon G5 X Mark II||111 mm||61 mm||46 mm||340 g||230||n||Jul 2019||899|
|5.||Canon SX740||110 mm||64 mm||40 mm||299 g||265||n||Jul 2018||399|
|6.||Canon R||139 mm||98 mm||84 mm||660 g||370||Y||Sep 2018||2,299|
|7.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699|
|8.||Canon G5 X||112 mm||76 mm||44 mm||353 g||210||n||Oct 2015||799|
|9.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699|
|10.||Canon 6D||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099|
|11.||Leica C-LUX||113 mm||67 mm||46 mm||340 g||370||n||Jun 2018||1,049|
|12.||Panasonic S1||149 mm||110 mm||97 mm||1017 g||400||Y||Feb 2019||2,499|
|13.||Panasonic FZ1000 II||136 mm||97 mm||131 mm||810 g||350||n||Feb 2019||899|
|14.||Panasonic ZS200||111 mm||65 mm||45 mm||340 g||370||n||Feb 2018||799|
|15.||Sony ZV-1||105 mm||60 mm||44 mm||294 g||260||n||May 2020||799|
|16.||Sony RX100 VI||102 mm||58 mm||43 mm||301 g||240||n||Jun 2018||1,199|
|17.||Sony A99||147 mm||111 mm||78 mm||812 g||500||Y||Sep 2012||2,799|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The G7X Mark III was launched at a lower price than the Canon R6, despite having a lens built in. 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.
Of the two cameras under consideration, the Canon G7 X Mark III features an one-inch sensor and the Canon R6 a full frame sensor. The sensor area in the Canon R6 is 645 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the Canon R6 uses a more advanced image processing engine (DIGIC X) than the G7X Mark III (DIGIC 8), with benefits for noise reduction, color accuracy, and processing speed.
Even though the Canon R6 has a larger sensor, both cameras offer the same resolution of 20 megapixels. This implies that the Canon R6 has a lower pixel density and larger individual pixels (with a pixel pitch of 6.57μm versus 2.41μm for the G7X Mark III), which gives it a potential advantage in terms of light gathering capacity. In addition, the Canon R6 is a somewhat more recent model (by 1 year) than the G7X Mark III, and its sensor might have benefitted from technological advances during this time.
The Canon R6 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon PowerShot G7 X Mark III has a native sensitivity range from ISO 125 to ISO 12800, which can be extended to ISO 125-25600. The corresponding ISO settings for the Canon EOS R6 are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-204800.
Consistent information on actual sensor performance is available from DXO Mark for many 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.
| DXO |
|1.||Canon G7 X Mark III||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|2.||Canon R6||Full Frame||20.0||5472||3648||4k/60p||24.2||14.3||3394||90|
|3.||Canon R5||Full Frame||44.8||8192||5464||8k/30p||25.3||14.6||3042||95|
|4.||Canon G5 X Mark II||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|6.||Canon R||Full Frame||30.1||6720||4480||4K/30p||24.5||13.5||2742||89|
|7.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||..||..||..||..|
|8.||Canon G5 X||1-inch||20.0||5472||3648||1080/60p||..||..||..||..|
|9.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|10.||Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|12.||Panasonic S1||Full Frame||24.0||6000||4000||4K/60p||25.2||14.5||3333||95|
|13.||Panasonic FZ1000 II||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|16.||Sony RX100 VI||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|17.||Sony A99||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89|
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 Canon R6 provides a faster frame rate than the G7X Mark III. It can shoot movie footage at 4k/60p, while the G7X Mark III is limited to 4K/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the Canon R6 has an electronic viewfinder (3690k dots), which can be very helpful when shooting in bright sunlight. In contrast, the G7X Mark III relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon G7 X Mark III and Canon R6 in connection with corresponding information for a sample of similar cameras.
|1.||Canon G7 X Mark III||none||n||3.0||1040||tilting||Y||1/2000s||30||Y||Y|
|4.||Canon G5 X Mark II||2360||n||3.0||1040||tilting||Y||1/2000s||30||Y||Y|
|7.||Canon G7 X Mark II||none||n||3.0||1040||tilting||Y||1/2000s||8.0||Y||Y|
|8.||Canon G5 X||2360||n||3.0||1040||swivel||Y||1/2000s||5.9||Y||Y|
|9.||Canon G7 X||none||n||3.0||1040||tilting||Y||1/2000s||6.5||Y||Y|
|13.||Panasonic FZ1000 II||2360||n||3.0||1240||swivel||Y||1/4000s||12.0||Y||Y|
|16.||Sony RX100 VI||2359||n||3.0||1229||tilting||Y||1/2000s||24.0||Y||Y|
One difference between the cameras concerns the presence of an on-board flash. The G7X Mark III has one, while the Canon R6 does not. While the built-in flash of the G7X Mark III is not very powerful, it can at times be useful as a fill-in light.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 Canon G7 X Mark III and the Canon R6 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 G7X Mark III and the Canon R6 write their files to SDXC cards. The Canon R6 features dual card slots, which can be very useful in case a memory card fails. In contrast, the G7X Mark III only has one slot. The Canon R6 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the G7X Mark III can use UHS-I cards (up to 104 MB/s).
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 Canon PowerShot G7 X Mark III and Canon EOS R6 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|1.||Canon G7 X Mark III||-||stereo||mono||Y||-||micro||3.1||Y||-||Y|
|4.||Canon G5 X Mark II||-||stereo||mono||-||-||micro||3.1||Y||-||Y|
|7.||Canon G7 X Mark II||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|8.||Canon G5 X||Y||stereo||mono||-||-||mini||2.0||Y||Y||-|
|9.||Canon G7 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|13.||Panasonic FZ1000 II||Y||stereo||mono||Y||-||micro||2.0||Y||-||Y|
|16.||Sony RX100 VI||-||stereo||mono||-||-||micro||2.0||Y||Y||Y|
It is notable that the Canon R6 has a hotshoe, which makes it possible to easily attach optional accessories, such as an external flash gun. The G7X Mark III does not feature such an accessory-socket.
Both the G7X Mark III and the Canon R6 are recent models that are part of the current product line-up. The G7X Mark III replaced the earlier Canon G7X Mark II, while the Canon R6 does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So what conclusions can be drawn? Is the Canon G7 X Mark III better than the Canon R6 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon PowerShot G7 X Mark III:
- Faster burst: Shoots at higher frequency (30 vs 12 flaps/sec) to capture the decisive moment.
- Ready to shoot: Has a lens built-in, whereas the Canon R6 requires a separate lens.
- More compact: Is smaller (105x61mm vs 138x98mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the Canon R6).
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More heavily discounted: Has been on the market for longer (launched in July 2019).
Advantages of the Canon EOS R6:
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better jpgs: Has a more modern image processing engine (DIGIC X vs DIGIC 8).
- Better video: Provides higher movie framerates (4k/60p versus 4K/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- 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.
- More detailed LCD: Has a higher resolution rear screen (1620k vs 1040k 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 1/2000s) to freeze action.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- Longer lasting: Gets more shots (360 versus 235) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 3.1).
- 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: Was introduced somewhat (1 year) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the Canon R6 is the clear winner of the contest (20 : 7 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Canon G7 X Mark III and the Canon R6 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the G7X Mark III and the Canon R6 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 summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], 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.
|1.||Canon G7 X Mark III||..||+ +||81/100||4/5||..||Jul 2019||749|
|2.||Canon R6||5/5||+ +||90/100||4.5/5||5/5||Jul 2020||2,499|
|3.||Canon R5||4.5/5||..||91/100||4.5/5||4.5/5||Jul 2020||3,899|
|4.||Canon G5 X Mark II||4/5||+||82/100||..||4/5||Jul 2019||899|
|5.||Canon SX740||..||+||..||4/5||4/5||Jul 2018||399|
|6.||Canon R||4/5||o||79/100||4.5/5||4/5||Sep 2018||2,299|
|7.||Canon G7 X Mark II||4.5/5||+ +||81/100||4.5/5||4.5/5||Feb 2016||699|
|8.||Canon G5 X||5/5||+ +||78/100||4.5/5||4.5/5||Oct 2015||799|
|9.||Canon G7 X||4/5||+ +||77/100||4.5/5||4.5/5||Sep 2014||699|
|10.||Canon 6D||5/5||+ +||83/100||4.5/5||4.5/5||Sep 2012||2,099|
|11.||Leica C-LUX||..||..||..||4.5/5||4/5||Jun 2018||1,049|
|12.||Panasonic S1||4.5/5||+ +||88/100||4.5/5||4/5||Feb 2019||2,499|
|13.||Panasonic FZ1000 II||..||..||83/100||4.5/5||4.5/5||Feb 2019||899|
|14.||Panasonic ZS200||..||+ +||81/100||4.5/5||4.5/5||Feb 2018||799|
|15.||Sony ZV-1||4/5||..||85/100||4/5||4.5/5||May 2020||799|
|16.||Sony RX100 VI||4.5/5||+ +||83/100||4/5||4.5/5||Jun 2018||1,199|
|17.||Sony A99||5/5||..||84/100||4.5/5||4.5/5||Sep 2012||2,799|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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 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.
Specifications: Canon G7 X Mark III vs Canon R6
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||Canon G7 X Mark III||Canon R6|
|Camera Type||Fixed lens compact camera||Mirrorless system camera|
|Camera Lens||24-100mm f/1.8-2.8||Canon RF mount lenses|
|Launch Date||July 2019||July 2020|
|Launch Price||USD 749||USD 2,499|
|Sensor Specs||Canon G7 X Mark III||Canon R6|
|Sensor Format||1" Sensor||Full Frame Sensor|
|Sensor Size||13.2 x 8.8 mm||36.0 x 24.0 mm|
|Sensor Area||116.16 mm2||864 mm2|
|Sensor Diagonal||15.9 mm||43.3 mm|
|Sensor Resolution||20 Megapixels||20 Megapixels|
|Image Resolution||5472 x 3648 pixels||5472 x 3648 pixels|
|Pixel Pitch||2.41 μm||6.57 μm|
|Pixel Density||17.18 MP/cm2||2.31 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||4k/60p Video|
|ISO Setting||125 - 12,800 ISO||100 - 102,400 ISO|
|ISO Boost||125 - 25,600 ISO||50 - 204,800 ISO|
|Image Processor||DIGIC 8||DIGIC X|
|DXO Sensor Quality (score)||..||90|
|DXO Color Depth (bits)||..||24.2|
|DXO Dynamic Range (EV)||..||14.3|
|DXO Low Light (ISO)||..||3394|
|Screen Specs||Canon G7 X Mark III||Canon R6|
|Viewfinder Type||no viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||3690k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1620k dots|
|LCD Attachment||Tilting screen||Swivel screen|
|Shooting Specs||Canon G7 X Mark III||Canon R6|
|Focus System||Contrast-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/2000s||1/8000s|
|Continuous Shooting||30 shutter flaps/s||12 shutter flaps/s|
|Electronic Shutter||up to 1/25600s||up to 1/8000s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||Lens-based stabilization||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-I||UHS-II|
|Connectivity Specs||Canon G7 X Mark III||Canon R6|
|External Flash||no Hotshoe||Hotshoe|
|USB Connector||USB 3.1||USB 3.2|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||Bluetooth built-in||Bluetooth built-in|
|Body Specs||Canon G7 X Mark III||Canon R6|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||235 shots per charge||360 shots per charge|
|In-Camera Charging||USB charging||USB charging|
105 x 61 x 41 mm
(4.1 x 2.4 x 1.6 in)
138 x 98 x 88 mm
(5.4 x 3.9 x 3.5 in)
|Camera Weight||304 g (10.7 oz)||680 g (24.0 oz)|
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