Canon G7 X Mark III vs Nikon D7100
The Canon PowerShot G7 X Mark III and the Nikon D7100 are two digital cameras that were revealed to the public, respectively, in July 2019 and February 2013. The G7X Mark III is a fixed lens compact, while the D7100 is a DSLR. The cameras are based on an one-inch (G7X Mark III) and an APS-C (D7100) sensor. The Canon has a resolution of 20 megapixels, whereas the Nikon provides 24 MP.
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 Nikon D7100? 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 Canon G7 X Mark III and the Nikon D7100. 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.
The G7X Mark III can be obtained in two different colors (black, silver), while the D7100 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 Nikon D7100 is considerably larger (127 percent) than the Canon G7 X Mark III. It is noteworthy in this context that the D7100 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 D7100 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the D7100 and their specifications in the Nikon Lens Catalog.
Concerning battery life, the G7X Mark III gets 235 shots out of its NB-13L battery, while the D7100 can take 950 images on a single charge of its EN-EL15 power pack. The power pack in the G7X Mark III can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Canon G7 X Mark III||105 mm||61 mm||41 mm||304 g||235||n||Jul 2019||749||amazon.com|
|2.||Nikon D7100||136 mm||107 mm||76 mm||765 g||950||Y||Feb 2013||1,199||ebay.com|
|3.||Canon G5 X Mark II||111 mm||61 mm||46 mm||340 g||230||n||Jul 2019||899||amazon.com|
|4.||Canon SX740||110 mm||64 mm||40 mm||299 g||265||n||Jul 2018||399||amazon.com|
|5.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699||ebay.com|
|6.||Canon G5 X||112 mm||76 mm||44 mm||353 g||210||n||Oct 2015||799||ebay.com|
|7.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699||ebay.com|
|8.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199||ebay.com|
|9.||Leica C-LUX||113 mm||67 mm||46 mm||340 g||370||n||Jun 2018||1,049||amazon.com|
|10.||Nikon D7500||136 mm||104 mm||73 mm||720 g||950||Y||Apr 2017||1,299||amazon.com|
|11.||Nikon D7200||136 mm||107 mm||76 mm||765 g||1110||Y||Mar 2015||1,199||ebay.com|
|12.||Nikon D3300||124 mm||98 mm||76 mm||430 g||700||n||Jan 2014||499||ebay.com|
|13.||Nikon D7000||132 mm||105 mm||77 mm||780 g||1050||Y||Sep 2010||1,499||ebay.com|
|14.||Panasonic FZ1000 II||136 mm||97 mm||131 mm||810 g||350||n||Feb 2019||899||amazon.com|
|15.||Panasonic ZS200||111 mm||65 mm||45 mm||340 g||370||n||Feb 2018||799||amazon.com|
|16.||Sony ZV-1||105 mm||60 mm||44 mm||294 g||260||n||May 2020||799||amazon.com|
|17.||Sony RX100 VI||102 mm||58 mm||43 mm||301 g||240||n||Jun 2018||1,199||ebay.com|
|Note: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G7X Mark III was launched at a lower price than the D7100, 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.
The size of the imaging sensor is a crucial determinant 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon G7 X Mark III features an one-inch sensor and the Nikon D7100 an APS-C sensor. The sensor area in the D7100 is 216 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 24MP, the D7100 offers a higher resolution than the G7X Mark III (20MP), but the D7100 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 2.41μm for the G7X Mark III) due to its larger sensor. However, the G7X Mark III is a much more recent model (by 6 years and 4 months) than the D7100, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the D7100 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Nikon D7100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D7100 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 Canon G7 X Mark III are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.
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 Nikon D7100 are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 50-25600.
In terms of underlying technology, the G7X Mark III is build around a BSI-CMOS sensor, while the D7100 uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|1.||Canon G7 X Mark III||1-inch||20.0||5472||3648||4K/30p||22.2||12.4||583||65|
|3.||Canon G5 X Mark II||1-inch||20.0||5472||3648||4K/30p||22.2||12.4||583||65|
|5.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.8||11.9||260||62|
|6.||Canon G5 X||1-inch||20.0||5472||3648||1080/60p||21.8||11.9||227||61|
|7.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|14.||Panasonic FZ1000 II||1-inch||20.0||5472||3648||4K/30p||22.1||12.4||546||65|
|17.||Sony RX100 VI||1-inch||20.0||5472||3648||4K/30p||22.1||12.3||478||64|
|Note: DXO values in italics represent estimates based on sensor size and age.|
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 G7X Mark III provides a higher video resolution than the D7100. It can shoot video footage at 4K/30p, while the Nikon is limited to 1080/60p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the D7100 has an optical viewfinder, which can be very useful 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 Nikon D7100 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/s||Y||Y|
|2.||Nikon D7100||optical||Y||3.2 / 1229||fixed||n||1/8000s||6.0/s||Y||n|
|3.||Canon G5 X Mark II||2360||n||3.0 / 1040||tilting||Y||1/2000s||30/s||Y||Y|
|4.||Canon SX740||none||n||3.0 / 922||tilting||n||1/3200s||10.0/s||Y||Y|
|5.||Canon G7 X Mark II||none||n||3.0 / 1040||tilting||Y||1/2000s||8.0/s||Y||Y|
|6.||Canon G5 X||2360||n||3.0 / 1040||swivel||Y||1/2000s||5.9/s||Y||Y|
|7.||Canon G7 X||none||n||3.0 / 1040||tilting||Y||1/2000s||6.5/s||Y||Y|
|8.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|9.||Leica C-LUX||2330||n||3.0 / 1240||fixed||Y||1/2000s||10.0/s||Y||Y|
|10.||Nikon D7500||optical||Y||3.2 / 922||tilting||Y||1/8000s||8.0/s||Y||n|
|11.||Nikon D7200||optical||Y||3.2 / 1229||fixed||n||1/8000s||6.0/s||Y||n|
|12.||Nikon D3300||optical||n||3.0 / 921||fixed||n||1/4000s||5.0/s||Y||n|
|13.||Nikon D7000||optical||Y||3.0 / 921||fixed||n||1/8000s||6.0/s||Y||n|
|14.||Panasonic FZ1000 II||2360||n||3.0 / 1240||swivel||Y||1/4000s||12.0/s||Y||Y|
|15.||Panasonic ZS200||2330||n||3.0 / 1240||fixed||Y||1/2000s||10.0/s||Y||Y|
|16.||Sony ZV-1||none||n||3.0 / 922||swivel||Y||1/2000s||24.0/s||n||Y|
|17.||Sony RX100 VI||2359||n||3.0 / 1229||tilting||Y||1/2000s||24.0/s||Y||Y|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G7X Mark III has a touchscreen, while the D7100 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The G7X Mark III has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the D7100 does not have a selfie-screen.
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 G7X Mark III 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 Canon G7 X Mark III and the Nikon D7100 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 D7100 write their files to SDXC cards. The D7100 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. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of 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 Nikon D7100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon G7 X Mark III||-||stereo / mono||Y||-||micro||3.1||Y||-||Y|
|2.||Nikon D7100||Y||stereo / mono||Y||Y||mini||2.0||-||-||-|
|3.||Canon G5 X Mark II||-||stereo / mono||-||-||micro||3.1||Y||-||Y|
|4.||Canon SX740||-||stereo / mono||-||-||micro||2.0||Y||-||Y|
|5.||Canon G7 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|6.||Canon G5 X||Y||stereo / mono||-||-||mini||2.0||Y||Y||-|
|7.||Canon G7 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|8.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|9.||Leica C-LUX||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|10.||Nikon D7500||Y||stereo / mono||Y||Y||mini||2.0||Y||-||Y|
|11.||Nikon D7200||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|12.||Nikon D3300||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|13.||Nikon D7000||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|14.||Panasonic FZ1000 II||Y||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|15.||Panasonic ZS200||-||stereo / mono||-||-||micro||2.0||Y||-||Y|
|16.||Sony ZV-1||Y||stereo / mono||Y||-||micro||2.0||Y||Y||Y|
|17.||Sony RX100 VI||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
It is notable that the G7X Mark III offers wifi support, while the D7100 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
The G7X Mark III is a recent model that features in the current product line-up of Canon. In contrast, the D7100 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the D7100 was succeeded by the Nikon D7200. Further information on the features and operation of the G7X Mark III and D7100 can be found, respectively, in the Canon G7 X Mark III Manual (free pdf) or the online Nikon D7100 Manual.
So what conclusions can be drawn? Which of the two cameras – the Canon G7 X Mark III or the Nikon D7100 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Canon PowerShot G7 X Mark III:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (30 vs 6 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Ready to shoot: Comes with a built-in lens, while the D7100 requires a separate lens.
- More compact: Is smaller (105x61mm vs 136x107mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the D7100).
- Easier travel charging: Can be conveniently charged via its USB port.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 6 years and 4 months of technical progress since the D7100 launch.
Reasons to prefer the Nikon D7100:
- More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Easier framing: Has an optical 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 (1229k vs 1040k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (950 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.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More heavily discounted: Has been around for much longer (launched in February 2013).
If the number of relative strengths (bullet points above) is taken as a guide, the G7X Mark III emerges as the winner of the contest (17 : 14 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 Canon G7 X Mark III and the Nikon D7100 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings 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 says little about, for example, the shooting experience and imaging performance of the G7X Mark III and the D7100 in practical situations. 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 where reviews by experts come in. 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.
|1.||Canon G7 X Mark III||..||+ +||4/5||81/100||4/5||..||Jul 2019||749||amazon.com|
|2.||Nikon D7100||5/5||+ +||..||85/100||4.5/5||4.5/5||Feb 2013||1,199||ebay.com|
|3.||Canon G5 X Mark II||4/5||+||4/5||82/100||..||4/5||Jul 2019||899||amazon.com|
|4.||Canon SX740||..||+||3.5/5||..||4/5||4/5||Jul 2018||399||amazon.com|
|5.||Canon G7 X Mark II||4.5/5||+ +||..||81/100||4.5/5||4.5/5||Feb 2016||699||ebay.com|
|6.||Canon G5 X||5/5||+ +||..||78/100||4.5/5||4.5/5||Oct 2015||799||ebay.com|
|7.||Canon G7 X||4/5||+ +||..||77/100||4.5/5||4.5/5||Sep 2014||699||ebay.com|
|8.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199||ebay.com|
|9.||Leica C-LUX||..||..||3.5/5||..||4.5/5||4/5||Jun 2018||1,049||amazon.com|
|10.||Nikon D7500||4.5/5||+ +||4.5/5||86/100||5/5||4.5/5||Apr 2017||1,299||amazon.com|
|11.||Nikon D7200||4/5||+ +||..||84/100||4.5/5||4.5/5||Mar 2015||1,199||ebay.com|
|12.||Nikon D3300||3/5||+||..||77/100||4.5/5||4.5/5||Jan 2014||499||ebay.com|
|13.||Nikon D7000||4/5||..||..||80/100||4.5/5||4.5/5||Sep 2010||1,499||ebay.com|
|14.||Panasonic FZ1000 II||..||..||..||83/100||4.5/5||4.5/5||Feb 2019||899||amazon.com|
|15.||Panasonic ZS200||..||+ +||4.5/5||81/100||4.5/5||4.5/5||Feb 2018||799||amazon.com|
|16.||Sony ZV-1||4/5||..||4.5/5||85/100||4/5||4.5/5||May 2020||799||amazon.com|
|17.||Sony RX100 VI||4.5/5||+ +||..||83/100||4/5||4.5/5||Jun 2018||1,199||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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.
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.
- Canon G7 X Mark III vs Fujifilm X-A7
- Canon G7 X Mark III vs Leica V-LUX 5
- Canon G7 X Mark III vs Nikon 1 V2
- Canon G7 X Mark III vs Sony A7S
- Canon G7 X Mark III vs Sony NEX-3
- Canon G7 X Mark III vs Sony RX100 IV
- Fujifilm X-A7 vs Nikon D7100
- Nikon D7100 vs Nikon W150
- Nikon D7100 vs Panasonic FZ1000
- Nikon D7100 vs Panasonic G9
- Nikon D7100 vs Panasonic GH3
- Nikon D7100 vs Sony A1
Specifications: Canon G7 X Mark III vs Nikon D7100
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||Nikon D7100|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||24-100mm f/1.8-2.8||Nikon F mount lenses|
|Launch Date||July 2019||February 2013|
|Launch Price||USD 749||USD 1,199|
|Sensor Specs||Canon G7 X Mark III||Nikon D7100|
|Sensor Format||1" Sensor||APS-C Sensor|
|Sensor Size||13.2 x 8.8 mm||23.5 x 15.6 mm|
|Sensor Area||116.16 mm2||366.6 mm2|
|Sensor Diagonal||15.9 mm||28.2 mm|
|Sensor Resolution||20 Megapixels||24 Megapixels|
|Image Resolution||5472 x 3648 pixels||6000 x 4000 pixels|
|Pixel Pitch||2.41 μm||3.91 μm|
|Pixel Density||17.18 MP/cm2||6.55 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||4K/30p Video||1080/60p Video|
|ISO Setting||125 - 12,800 ISO||100 - 6,400 ISO|
|ISO Boost||125 - 25,600 ISO||50 - 25,600 ISO|
|Image Processor||DIGIC 8||EXPEED 4|
|DXO Sensor Quality (score)||..||83|
|DXO Color Depth (bits)||..||24.2|
|DXO Dynamic Range (EV)||..||13.7|
|DXO Low Light (ISO)||..||1256|
|Screen Specs||Canon G7 X Mark III||Nikon D7100|
|Viewfinder Type||no viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.2inch|
|LCD Resolution||1040k dots||1229k dots|
|LCD Attachment||Tilting screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon G7 X Mark III||Nikon D7100|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||30 shutter flaps/s||6 shutter flaps/s|
|Electronic Shutter||up to 1/25600s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon G7 X Mark III||Nikon D7100|
|External Flash||no Hotshoe||Hotshoe|
|USB Connector||USB 3.1||USB 2.0|
|HDMI Port||micro HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||no Wifi|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Canon G7 X Mark III||Nikon D7100|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||235 shots per charge||950 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
105 x 61 x 41 mm
(4.1 x 2.4 x 1.6 in)
136 x 107 x 76 mm
(5.4 x 4.2 x 3.0 in)
|Camera Weight||304 g (10.7 oz)||765 g (27.0 oz)|
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