Canon G7 X Mark II vs Nikon D5100
The Canon PowerShot G7 X Mark II and the Nikon D5100 are two digital cameras that were officially introduced, respectively, in February 2016 and April 2011. The G7X Mark II is a fixed lens compact, while the D5100 is a DSLR. The cameras are based on an one-inch (G7X Mark II) and an APS-C (D5100) sensor. The Canon has a resolution of 20 megapixels, whereas the Nikon provides 16.1 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 II and the Nikon D5100? 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.
An illustration of the physical size and weight of the Canon G7 X Mark II and the Nikon D5100 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D5100 is considerably larger (92 percent) than the Canon G7 X Mark II. In this context, it is worth noting that neither the G7X Mark II nor the D5100 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X Mark II has a lens built in, whereas the D5100 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 D5100 and their specifications in the Nikon Lens Catalog.
Concerning battery life, the G7X Mark II gets 265 shots out of its NB-13L battery, while the D5100 can take 660 images on a single charge of its EN-EL14 power pack. The power pack in the G7X Mark II can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
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, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699|
|2.||Nikon D5100||128 mm||97 mm||79 mm||560 g||660||n||Apr 2011||749|
|3.||Canon G7 X Mark III||105 mm||61 mm||41 mm||304 g||235||n||Jul 2019||749|
|4.||Canon SX430||104 mm||69 mm||85 mm||323 g||195||n||Jan 2017||299|
|5.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399|
|6.||Canon SX420||104 mm||69 mm||85 mm||325 g||195||n||Jan 2016||299|
|7.||Canon SX720||110 mm||64 mm||36 mm||270 g||250||n||Feb 2016||379|
|8.||Canon G5 X||112 mm||76 mm||44 mm||353 g||210||n||Oct 2015||799|
|9.||Canon M3||111 mm||68 mm||44 mm||366 g||250||n||Feb 2015||679|
|10.||Canon SX410||104 mm||69 mm||85 mm||325 g||185||n||Feb 2015||279|
|11.||Canon SX710||113 mm||66 mm||35 mm||269 g||230||n||Jan 2015||349|
|12.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699|
|13.||Nikon D5600||124 mm||97 mm||70 mm||465 g||970||n||Nov 2016||699|
|14.||Nikon D5300||125 mm||98 mm||76 mm||480 g||600||n||Oct 2013||799|
|15.||Nikon D5200||129 mm||98 mm||78 mm||555 g||500||n||Nov 2012||749|
|16.||Nikon D3100||124 mm||96 mm||75 mm||505 g||550||n||Aug 2010||599|
|17.||Nikon D5000||127 mm||104 mm||80 mm||590 g||510||n||Apr 2009||749|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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 G7X Mark II was launched at a lower price than the D5100, despite having a lens built in. 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.
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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the 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 II features an one-inch sensor and the Nikon D5100 an APS-C sensor. The sensor area in the D5100 is 220 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.
Despite having a smaller sensor, the Canon G7 X Mark II offers a higher resolution of 20 megapixels, compared with 16.1 MP of the Nikon D5100. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 2.41μm versus 4.80μm for the D5100). However, it should be noted that the G7X Mark II is much more recent (by 4 years and 10 months) than the D5100, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The resolution advantage of the Canon G7 X Mark II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G7X Mark II for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Nikon D5100 are 24.6 x 16.3 inches or 62.6 x 41.5 cm for good quality, 19.7 x 13.1 inches or 50.1 x 33.2 cm for very good quality, and 16.4 x 10.9 inches or 41.7 x 27.6 cm for excellent quality prints.
The Canon PowerShot G7 X Mark II 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 D5100 are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 100-25600.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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 II||1-inch||20.0||5472||3648||1080/60p||..||..||..||..|
|3.||Canon G7 X Mark III||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|8.||Canon G5 X||1-inch||20.0||5472||3648||1080/60p||..||..||..||..|
|12.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the G7X Mark II provides a higher frame rate than the D5100. It can shoot video footage at 1080/60p, while the Nikon is limited to 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the D5100 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G7X Mark II relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon G7 X Mark II and Nikon D5100 along with similar information for a selection of comparators.
|1.||Canon G7 X Mark II||none||n||3.0 / 1040||tilting||Y||1/2000s||8.0||Y||Y|
|2.||Nikon D5100||optical||n||3.0 / 921||swivel||n||1/4000s||4.0||Y||n|
|3.||Canon G7 X Mark III||none||n||3.0 / 1040||tilting||Y||1/2000s||30||Y||Y|
|4.||Canon SX430||none||n||3.0 / 230||fixed||n||1/4000s||0.5||Y||Y|
|5.||Canon SX730||none||n||3.0 / 922||tilting||n||1/3200s||5.9||Y||Y|
|6.||Canon SX420||none||n||3.0 / 230||fixed||n||1/4000s||0.5||Y||Y|
|7.||Canon SX720||none||n||3.0 / 922||fixed||n||1/3200s||5.9||Y||Y|
|8.||Canon G5 X||2360||n||3.0 / 1040||swivel||Y||1/2000s||5.9||Y||Y|
|9.||Canon M3||optional||n||3.0 / 1040||tilting||Y||1/4000s||4.2||Y||n|
|10.||Canon SX410||none||n||3.0 / 230||fixed||n||1/4000s||0.5||Y||Y|
|11.||Canon SX710||none||n||3.0 / 922||fixed||n||1/3200s||6.0||Y||Y|
|12.||Canon G7 X||none||n||3.0 / 1040||tilting||Y||1/2000s||6.5||Y||Y|
|13.||Nikon D5600||optical||n||3.2 / 1037||swivel||Y||1/4000s||5.0||Y||n|
|14.||Nikon D5300||optical||n||3.2 / 1037||swivel||n||1/4000s||5.0||Y||n|
|15.||Nikon D5200||optical||n||3.0 / 921||swivel||n||1/4000s||5.0||Y||n|
|16.||Nikon D3100||optical||n||3.0 / 230||fixed||n||1/4000s||3.0||Y||n|
|17.||Nikon D5000||optical||n||2.7 / 230||full-flex||n||1/4000s||4.0||Y||n|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G7X Mark II has a touchscreen, while the D5100 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.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 Canon G7 X Mark II and the Nikon D5100 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 II and the D5100 write their files to SDXC cards. 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 II and Nikon D5100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon G7 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|2.||Nikon D5100||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|3.||Canon G7 X Mark III||-||stereo / mono||Y||-||micro||3.1||Y||-||Y|
|4.||Canon SX430||-||mono / mono||-||-||-||2.0||Y||Y||-|
|5.||Canon SX730||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|6.||Canon SX420||-||mono / mono||-||-||-||2.0||Y||Y||-|
|7.||Canon SX720||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|8.||Canon G5 X||Y||stereo / mono||-||-||mini||2.0||Y||Y||-|
|9.||Canon M3||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|10.||Canon SX410||-||stereo / mono||-||-||-||2.0||-||-||-|
|11.||Canon SX710||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|12.||Canon G7 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|13.||Nikon D5600||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|14.||Nikon D5300||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|15.||Nikon D5200||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|16.||Nikon D3100||Y||mono / mono||-||-||mini||2.0||-||-||-|
|17.||Nikon D5000||Y||mono / mono||-||-||mini||2.0||-||-||-|
It is notable that the G7X Mark II offers wifi support, while the D5100 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Both the G7X Mark II and the D5100 have been discontinued, but can regularly be found used on eBay. The D5100 was replaced by the Nikon D5200, while the G7X Mark II was followed by the Canon G7 X Mark III. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Nikon websites.
So what conclusions can be drawn? Is the Canon G7 X Mark II better than the Nikon D5100 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Canon PowerShot G7 X Mark II:
- More detail: Offers more megapixels (20 vs 16.1MP) with a 11% higher linear resolution.
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (8 vs 4 flaps/sec) to capture the decisive moment.
- Ready to shoot: Comes with a built-in lens, while the D5100 requires a separate lens.
- More compact: Is smaller (106x61mm vs 128x97mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the D5100).
- Easier travel charging: Can be conveniently charged via its USB port.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 4 years and 10 months of technical progress since the D5100 launch.
Advantages of the Nikon D5100:
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/4000s 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 (660 versus 265) out of a single battery charge.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More heavily discounted: Has been around for much longer (launched in April 2011).
If the count of relative strengths (bullet points above) is taken as a measure, the G7X Mark II is the clear winner of the match-up (14 : 8 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. 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.
How about other alternatives? Do the specifications of the Canon G7 X Mark II and the Nikon D5100 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G7X Mark II or the D5100. 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 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 (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 II||4.5/5||+ +||..||81/100||4.5/5||4.5/5||Feb 2016||699|
|2.||Nikon D5100||5/5||+ +||..||76/100||4.5/5||4.5/5||Apr 2011||749|
|3.||Canon G7 X Mark III||..||+ +||4/5||81/100||4/5||..||Jul 2019||749|
|4.||Canon SX430||..||..||..||..||3.5/5||3.5/5||Jan 2017||299|
|5.||Canon SX730||..||+||..||..||4/5||4/5||Apr 2017||399|
|6.||Canon SX420||..||..||..||..||..||3/5||Jan 2016||299|
|7.||Canon SX720||..||+||..||..||4/5||4.5/5||Feb 2016||379|
|8.||Canon G5 X||5/5||+ +||..||78/100||4.5/5||4.5/5||Oct 2015||799|
|9.||Canon M3||4/5||o||..||75/100||4.5/5||4/5||Feb 2015||679|
|10.||Canon SX410||..||o||..||..||..||..||Feb 2015||279|
|11.||Canon SX710||..||+||..||..||4/5||3.5/5||Jan 2015||349|
|12.||Canon G7 X||4/5||+ +||..||77/100||4.5/5||4.5/5||Sep 2014||699|
|13.||Nikon D5600||4/5||..||4/5||79/100||4.5/5||4/5||Nov 2016||699|
|14.||Nikon D5300||4/5||+ +||..||79/100||4.5/5||4.5/5||Oct 2013||799|
|15.||Nikon D5200||4/5||+ +||..||79/100||4.5/5||4.5/5||Nov 2012||749|
|16.||Nikon D3100||5/5||+ +||..||72/100||4.5/5||4.5/5||Aug 2010||599|
|17.||Nikon D5000||..||+ +||..||75/100||4/5||4.5/5||Apr 2009||749|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods 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 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.
- Canon 1D Mark IV vs Nikon D5100
- Canon 77D vs Canon G7 X Mark II
- Canon G7 X Mark II vs Canon S120
- Canon G7 X Mark II vs Nikon D90
- Canon G7 X Mark II vs Panasonic G95
- Canon G7 X Mark II vs Sony HX350
- Canon G7 X Mark II vs Sony RX100 VII
- Canon SL2 vs Nikon D5100
- Nikon D5100 vs Olympus XZ-1
- Nikon D5100 vs Panasonic FZ200
- Nikon D5100 vs Pentax K-1
- Nikon D5100 vs Sony A77 II
Specifications: Canon G7 X Mark II vs Nikon D5100
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 II||Nikon D5100|
|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||February 2016||April 2011|
|Launch Price||USD 699||USD 749|
|Sensor Specs||Canon G7 X Mark II||Nikon D5100|
|Sensor Format||1" Sensor||APS-C Sensor|
|Sensor Size||13.2 x 8.8 mm||23.6 x 15.7 mm|
|Sensor Area||116.16 mm2||370.52 mm2|
|Sensor Diagonal||15.9 mm||28.3 mm|
|Sensor Resolution||20 Megapixels||16.1 Megapixels|
|Image Resolution||5472 x 3648 pixels||4928 x 3264 pixels|
|Pixel Pitch||2.41 μm||4.80 μm|
|Pixel Density||17.18 MP/cm2||4.34 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||1080/30p Video|
|ISO Setting||125 - 12,800 ISO||100 - 6,400 ISO|
|ISO Boost||125 - 25,600 ISO||100 - 25,600 ISO|
|Image Processor||DIGIC 7||EXPEED 2|
|DXO Sensor Quality (score)||..||80|
|DXO Color Depth (bits)||..||23.5|
|DXO Dynamic Range (EV)||..||13.6|
|DXO Low Light (ISO)||..||1183|
|Screen Specs||Canon G7 X Mark II||Nikon D5100|
|Viewfinder Type||no viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||921k dots|
|LCD Attachment||Tilting screen||Swivel screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon G7 X Mark II||Nikon D5100|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||8 shutter flaps/s||4 shutter flaps/s|
|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||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon G7 X Mark II||Nikon D5100|
|External Flash||no Hotshoe||Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||Wifi built-in||no Wifi|
|Near-Field Communication||NFC built-in||no NFC|
|Body Specs||Canon G7 X Mark II||Nikon D5100|
|Battery Life (CIPA)||265 shots per charge||660 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
106 x 61 x 42 mm
(4.2 x 2.4 x 1.7 in)
128 x 97 x 79 mm
(5.0 x 3.8 x 3.1 in)
|Camera Weight||319 g (11.3 oz)||560 g (19.8 oz)|
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