Canon G9 X Mark II vs Nikon D40X
The Canon PowerShot G9 X Mark II and the Nikon D40X are two digital cameras that were announced, respectively, in January 2017 and March 2007. The G9X Mark II is a fixed lens compact, while the D40X is a DSLR. The cameras are based on an one-inch (G9X Mark II) and an APS-C (D40X) sensor. The Canon has a resolution of 20 megapixels, whereas the Nikon provides 10 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 G9 X Mark II and the Nikon D40X? 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 G9 X Mark II and the Nikon D40X. 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 measures 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 Nikon D40X is considerably larger (105 percent) than the Canon G9 X Mark II. In this context, it is worth noting that neither the G9X Mark II nor the D40X are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G9X Mark II has a lens built in, whereas the D40X 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 D40X and their specifications in the Nikon Lens Catalog.
Concerning battery life, the G9X Mark II gets 235 shots out of its NB-13L battery, while the D40X can take 520 images on a single charge of its EN-EL9 power pack. The power pack in the G9X 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 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 G9 X Mark II||98 mm||58 mm||31 mm||206 g||235||n||Jan 2017||529|
|2.||Nikon D40X||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729|
|3.||Canon SX70||127 mm||91 mm||117 mm||608 g||325||n||Sep 2018||549|
|4.||Canon M100||108 mm||67 mm||35 mm||302 g||295||n||Aug 2017||499|
|5.||Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549|
|6.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699|
|7.||Canon G9 X||98 mm||58 mm||31 mm||209 g||220||n||Oct 2015||529|
|8.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699|
|9.||Nikon D3000||126 mm||97 mm||64 mm||536 g||500||n||Jul 2009||599|
|10.||Nikon D5000||127 mm||104 mm||80 mm||590 g||510||n||Apr 2009||749|
|11.||Nikon D60||126 mm||94 mm||64 mm||522 g||500||n||Jan 2008||629|
|12.||Nikon D40||124 mm||94 mm||64 mm||522 g||470||n||Nov 2006||499|
|13.||Nikon D80||132 mm||103 mm||77 mm||668 g||600||n||Aug 2006||999|
|14.||Sony HX99||102 mm||58 mm||36 mm||242 g||370||n||Aug 2018||449|
|15.||Sony HX95||102 mm||58 mm||36 mm||242 g||370||n||Aug 2018||429|
|16.||Sony RX100 V||102 mm||58 mm||41 mm||299 g||220||n||Oct 2016||999|
|17.||Sony RX100||102 mm||58 mm||36 mm||240 g||330||n||Jun 2012||649|
|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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The G9X Mark II was launched at a lower price than the D40X, 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 sensor inside a digital camera is one of the key determinants 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. 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 tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon G9 X Mark II features an one-inch sensor and the Nikon D40X an APS-C sensor. The sensor area in the D40X is 222 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 G9 X Mark II offers a higher resolution of 20 megapixels, compared with 10 MP of the Nikon D40X. 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 6.11μm for the D40X). However, it should be noted that the G9X Mark II is much more recent (by 9 years and 10 months) than the D40X, 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 G9 X Mark II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G9X 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 D40X are 19.4 x 13 inches or 49.2 x 32.9 cm for good quality, 15.5 x 10.4 inches or 39.3 x 26.3 cm for very good quality, and 12.9 x 8.6 inches or 32.8 x 21.9 cm for excellent quality prints.
The Canon PowerShot G9 X Mark II has a native sensitivity range from ISO 125 to ISO 12800. The corresponding ISO settings for the Nikon D40X are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.
For many cameras, data on sensor performance has been reported by DXO Mark. 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. 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 G9 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.9||12.5||522||65|
|6.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||..||..||..||..|
|7.||Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|8.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|16.||Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The G9X Mark II indeed provides movie recording capabilities, while the D40X does not. The highest resolution format that the G9X Mark II can use is 1080/60p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the D40X has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G9X Mark II relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon G9 X Mark II, the Nikon D40X, and comparable cameras.
|1.||Canon G9 X Mark II||none||n||3.0 / 1040||fixed||Y||1/2000s||8.2||Y||Y|
|2.||Nikon D40X||optical||n||2.5 / 230||fixed||n||1/4000s||3.0||Y||n|
|3.||Canon SX70||2360||n||3.0 / 922||swivel||n||1/2000s||10.0||Y||Y|
|4.||Canon M100||none||n||3.0 / 1040||tilting||Y||1/4000s||6.1||Y||n|
|5.||Canon SL2||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|6.||Canon G7 X Mark II||none||n||3.0 / 1040||tilting||Y||1/2000s||8.0||Y||Y|
|7.||Canon G9 X||none||n||3.0 / 1040||fixed||Y||1/2000s||6.0||Y||Y|
|8.||Canon G7 X||none||n||3.0 / 1040||tilting||Y||1/2000s||6.5||Y||Y|
|9.||Nikon D3000||optical||n||3.0 / 230||fixed||n||1/4000s||3.0||Y||n|
|10.||Nikon D5000||optical||n||2.7 / 230||full-flex||n||1/4000s||4.0||Y||n|
|11.||Nikon D60||optical||n||2.5 / 230||fixed||n||1/4000s||3.0||Y||n|
|12.||Nikon D40||optical||n||2.5 / 230||fixed||n||1/4000s||2.5||Y||n|
|13.||Nikon D80||optical||n||2.5 / 230||fixed||n||1/4000s||3.0||Y||n|
|14.||Sony HX99||638||n||3.0 / 922||tilting||Y||1/2000s||10.0||Y||Y|
|15.||Sony HX95||638||n||3.0 / 922||tilting||n||1/2000s||10.0||Y||Y|
|16.||Sony RX100 V||2359||n||3.0 / 1229||tilting||n||1/2000s||24.0||Y||Y|
|17.||Sony RX100||none||n||3.0 / 1229||fixed||n||1/2000s||10.0||Y||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G9X Mark II has a touchscreen, while the D40X has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
The Canon G9 X Mark II has 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.
The G9X Mark II writes its imaging data to SDXC cards, while the D40X uses SDHC cards. The G9X Mark II supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D40X 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 Canon PowerShot G9 X Mark II and Nikon D40X and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon G9 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|2.||Nikon D40X||Y||- / -||-||-||-||2.0||-||-||-|
|3.||Canon SX70||-||stereo / mono||Y||-||micro||2.0||Y||-||Y|
|4.||Canon M100||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|5.||Canon SL2||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|6.||Canon G7 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|7.||Canon G9 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|8.||Canon G7 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|9.||Nikon D3000||Y||- / -||-||-||-||2.0||-||-||-|
|10.||Nikon D5000||Y||mono / mono||-||-||mini||2.0||-||-||-|
|11.||Nikon D60||Y||- / -||-||-||-||2.0||-||-||-|
|12.||Nikon D40||Y||- / -||-||-||-||2.0||-||-||-|
|13.||Nikon D80||Y||- / -||-||-||-||2.0||-||-||-|
|14.||Sony HX99||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|15.||Sony HX95||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|16.||Sony RX100 V||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|17.||Sony RX100||-||stereo / mono||-||-||micro||2.0||-||-||-|
It is notable that the G9X Mark II offers wifi support, while the D40X does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
The G9X Mark II is a recent model that features in the current product line-up of Canon. In contrast, the D40X has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the D40X was succeeded by the Nikon D60 . 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 how do things add up? Is the Canon G9 X Mark II better than the Nikon D40X or vice versa? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Canon PowerShot G9 X Mark II:
- More detail: Offers more megapixels (20 vs 10MP) with a 41% higher linear resolution.
- More dynamic range: Captures a larger spectrum of light and dark details (1.1 EV of extra DR).
- Broader imaging potential: Can record not only still images but also 1080/60p movies.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (8.2 vs 3 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with a built-in lens, while the D40X requires a separate lens.
- More compact: Is smaller (98x58mm vs 124x94mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the D40X).
- 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.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 9 years and 10 months of technical progress since the D40X launch.
Arguments in favor of the Nikon D40X:
- Easier framing: Has an optical viewfinder for image composition and settings control.
- 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 (520 versus 235) 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 March 2007).
If the count of relative strengths (bullet points above) is taken as a measure, the G9X Mark II is the clear winner of the match-up (19 : 6 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 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 G9 X Mark II and the Nikon D40X 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 G9X Mark II or the D40X. 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 hands-on reviews by experts 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 G9 X Mark II||4/5||..||4/5||75/100||4.5/5||4.5/5||Jan 2017||529|
|2.||Nikon D40X||..||79/100||..||+ +||4/5||4/5||Mar 2007||729|
|3.||Canon SX70||..||+ +||3.5/5||..||3.5/5||3.5/5||Sep 2018||549|
|4.||Canon M100||3/5||+||..||..||4/5||3.5/5||Aug 2017||499|
|5.||Canon SL2||4/5||+ +||4/5||78/100||4.5/5||4.5/5||Jun 2017||549|
|6.||Canon G7 X Mark II||4.5/5||+ +||..||81/100||4.5/5||4.5/5||Feb 2016||699|
|7.||Canon G9 X||3.5/5||+ +||..||..||4.5/5||4.5/5||Oct 2015||529|
|8.||Canon G7 X||4/5||+ +||..||77/100||4.5/5||4.5/5||Sep 2014||699|
|9.||Nikon D3000||..||+||..||72/100||4/5||4.5/5||Jul 2009||599|
|10.||Nikon D5000||..||+ +||..||75/100||4/5||4.5/5||Apr 2009||749|
|11.||Nikon D60||..||80/100||..||+ +||4/5||4.5/5||Jan 2008||629|
|12.||Nikon D40||..||81/100||..||+ +||o||4.5/5||Nov 2006||499|
|13.||Nikon D80||..||+||..||+ +||o||4.5/5||Aug 2006||999|
|14.||Sony HX99||..||..||..||..||4/5||4.5/5||Aug 2018||449|
|15.||Sony HX95||..||..||..||..||..||..||Aug 2018||429|
|16.||Sony RX100 V||4.5/5||+ +||..||83/100||4/5||4.5/5||Oct 2016||999|
|17.||Sony RX100||5/5||+ +||..||78/100||4/5||5/5||Jun 2012||649|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price 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 G9 X Mark II vs Canon SL2
- Canon G9 X Mark II vs Fujifilm X-A1
- Canon G9 X Mark II vs Nikon D2H
- Canon G9 X Mark II vs Nikon D4
- Canon G9 X Mark II vs Sony A99 II
- Canon G9 X Mark II vs Sony HX80
- Leica D-LUX 5 vs Nikon D40X
- Nikon D40X vs Nikon D5100
- Nikon D40X vs Nikon D70
- Nikon D40X vs Sony NEX-3N
- Nikon D40X vs Sony NEX-5R
- Nikon D40X vs Sony RX100 VII
Specifications: Canon G9 X Mark II vs Nikon D40X
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 G9 X Mark II||Nikon D40X|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||28-84mm f/2.0-4.9||Nikon F mount lenses|
|Launch Date||January 2017||March 2007|
|Launch Price||USD 529||USD 729|
|Sensor Specs||Canon G9 X Mark II||Nikon D40X|
|Sensor Format||1" Sensor||APS-C Sensor|
|Sensor Size||13.2 x 8.8 mm||23.6 x 15.8 mm|
|Sensor Area||116.16 mm2||372.88 mm2|
|Sensor Diagonal||15.9 mm||28.4 mm|
|Sensor Resolution||20 Megapixels||10 Megapixels|
|Image Resolution||5472 x 3648 pixels||3872 x 2592 pixels|
|Pixel Pitch||2.41 μm||6.11 μm|
|Pixel Density||17.18 MP/cm2||2.69 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||no Video|
|ISO Setting||125 - 12,800 ISO||100 - 1,600 ISO|
|ISO Boost||no Enhancement||100 - 3,200 ISO|
|Image Processor||DIGIC 7||EXPEED|
|DXO Sensor Quality (score)||65||63|
|DXO Color Depth (bits)||21.9||22.4|
|DXO Dynamic Range (EV)||12.5||11.4|
|DXO Low Light (ISO)||522||516|
|Screen Specs||Canon G9 X Mark II||Nikon D40X|
|Viewfinder Type||no viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||2.5inch|
|LCD Resolution||1040k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon G9 X Mark II||Nikon D40X|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||8.2 shutter flaps/s||3 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDHC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Canon G9 X Mark II||Nikon D40X|
|External Flash||no Hotshoe||Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||no HDMI|
|Wifi Support||Wifi built-in||no Wifi|
|Near-Field Communication||NFC built-in||no NFC|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Canon G9 X Mark II||Nikon D40X|
|Battery Life (CIPA)||235 shots per charge||520 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
98 x 58 x 31 mm
(3.9 x 2.3 x 1.2 in)
124 x 94 x 64 mm
(4.9 x 3.7 x 2.5 in)
|Camera Weight||206 g (7.3 oz)||522 g (18.4 oz)|
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