Canon G9 X vs Sony RX100 III
The Canon PowerShot G9 X and the Sony Cyber-shot DSC-RX100 III are two digital cameras that were announced, respectively, in October 2015 and May 2014. Both the G9X and the RX100 III are fixed lens compact cameras that are equipped with an one-inch 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 G9 X and the Sony Cyber-shot DSC-RX100 III? 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 G9 X and the Sony RX100 III is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.
The G9X can be obtained in two different colors (black, silver), while the RX100 III 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 Sony RX100 III is somewhat larger (4 percent) than the Canon G9 X. Moreover, the RX100 III is substantially heavier (39 percent) than the G9X. In this context, it is worth noting that neither the G9X nor the RX100 III are weather-sealed.
Concerning battery life, the G9X gets 220 shots out of its NB-13L battery, while the RX100 III can take 320 images on a single charge of its NP-BX1 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient 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 G9 X||98 mm||58 mm||31 mm||209 g||220||n||Oct 2015||529||ebay.com|
|2.||Sony RX100 III||102 mm||58 mm||41 mm||290 g||320||n||May 2014||799||ebay.com|
|3.||Canon G9 X Mark II||98 mm||58 mm||31 mm||206 g||235||n||Jan 2017||529||amazon.com|
|4.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699||ebay.com|
|5.||Canon M10||108 mm||67 mm||35 mm||301 g||255||n||Oct 2015||499||ebay.com|
|6.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699||ebay.com|
|7.||Nikon 1 J4||100 mm||60 mm||29 mm||232 g||300||n||Apr 2014||549||ebay.com|
|8.||Panasonic FZ1000||137 mm||99 mm||131 mm||831 g||360||n||Jun 2014||899||ebay.com|
|9.||Sony RX100 VII||102 mm||58 mm||43 mm||302 g||260||n||Jul 2019||1,199||amazon.com|
|10.||Sony RX100 V||102 mm||58 mm||41 mm||299 g||220||n||Oct 2016||999||ebay.com|
|11.||Sony RX100 IV||102 mm||58 mm||41 mm||298 g||280||n||Jun 2015||999||ebay.com|
|12.||Sony RX100 II||102 mm||58 mm||38 mm||281 g||350||n||Jun 2013||749||ebay.com|
|13.||Sony RX100||102 mm||58 mm||36 mm||240 g||330||n||Jun 2012||649||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 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 G9X was launched at a markedly lower price (by 34 percent) than the RX100 III, which puts it into a different market segment. 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. 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an one-inch sensor and have a format factor (sometimes also referred to as "crop factor") of 2.7. 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 have a native aspect ratio (sensor width to sensor height) of 3:2.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 20 megapixels. This similarity in sensor specs implies that both the G9X and the RX100 III have the same pixel density, as well as the same pixel size. It should, however, be noted that the G9X is a somewhat more recent model (by 1 year and 4 months) than the RX100 III, and its sensor might have benefitted from technological advances during this time.
The Canon PowerShot G9 X has a native sensitivity range from ISO 125 to ISO 12800. The corresponding ISO settings for the Sony Cyber-shot DSC-RX100 III are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 80-25600.
Technology-wise, both cameras are equipped with BSI-CMOS (Backside Illuminated Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). Of the two cameras under consideration, the RX100 III has a markedly higher DXO score than the G9X (overall score 4 points higher), which will translate into better image quality. The advantage is based on 0.9 bits higher color depth, The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|1.||Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|2.||Sony RX100 III||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67|
|3.||Canon G9 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.9||12.5||522||65|
|4.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.8||11.9||260||62|
|6.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|7.||Nikon 1 J4||1-inch||18.2||5232||3488||1080/60p||20.8||10.7||426||53|
|9.||Sony RX100 VII||1-inch||20.0||5472||3648||4K/30p||21.8||12.4||418||63|
|10.||Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|11.||Sony RX100 IV||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|12.||Sony RX100 II||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||67|
|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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/60p).
Apart from body and sensor, cameras can and do differ across a range of features. For example, the RX100 III has an electronic viewfinder (1440k dots), which can be very helpful when shooting in bright sunlight. In contrast, the G9X 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, the Sony RX100 III, and comparable cameras.
|1.||Canon G9 X||none||n||3.0 / 1040||fixed||Y||1/2000s||6.0/s||Y||Y|
|2.||Sony RX100 III||1440||n||3.0 / 1229||tilting||n||1/2000s||10.0/s||Y||Y|
|3.||Canon G9 X Mark II||none||n||3.0 / 1040||fixed||Y||1/2000s||8.2/s||Y||Y|
|4.||Canon G7 X Mark II||none||n||3.0 / 1040||tilting||Y||1/2000s||8.0/s||Y||Y|
|5.||Canon M10||none||n||3.0 / 1040||tilting||Y||1/4000s||4.6/s||Y||n|
|6.||Canon G7 X||none||n||3.0 / 1040||tilting||Y||1/2000s||6.5/s||Y||Y|
|7.||Nikon 1 J4||none||n||3.0 / 1037||Fixed||Y||1/4000s||60.0/s||Y||n|
|8.||Panasonic FZ1000||2359||n||3.0 / 921||swivel||n||1/4000s||12.0/s||Y||Y|
|9.||Sony RX100 VII||2359||n||3.0 / 921||tilting||Y||1/2000s||90.0/s||Y||Y|
|10.||Sony RX100 V||2359||n||3.0 / 1229||tilting||n||1/2000s||24.0/s||Y||Y|
|11.||Sony RX100 IV||2359||n||3.0 / 1228||tilting||n||1/2000s||16.0/s||Y||Y|
|12.||Sony RX100 II||optional||n||3.0 / 1229||tilting||n||1/2000s||10.0/s||Y||Y|
|13.||Sony RX100||none||n||3.0 / 1229||fixed||n||1/2000s||10.0/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 G9X has a touchscreen, while the RX100 III has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The RX100 III has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the G9X does not have a selfie-screen.
The Canon G9 X 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.
Both the G9X and the RX100 III have zoom lenses built in. The G9X has a 28-84mm f/2.0-4.9 optic and the RX100 III offers a 24-70mm f/1.8-2.8 (focal lengths in full frame equivalent terms). Hence, the Sony provides a wider angle of view at the short end than the Canon, but less tele-photo reach at the long end. The RX100 III offers the faster maximum aperture.
The G9X writes its imaging data to SDXC cards, while the RX100 III uses SDXC or Memory Stick PRO Duo 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 G9 X and Sony Cyber-shot DSC-RX100 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon G9 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|2.||Sony RX100 III||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|3.||Canon G9 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|4.||Canon G7 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|5.||Canon M10||-||stereo / mono||-||-||mini||2.0||Y||Y||-|
|6.||Canon G7 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|7.||Nikon 1 J4||-||stereo / mono||-||-||mini||2.0||Y||-||-|
|8.||Panasonic FZ1000||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|9.||Sony RX100 VII||-||stereo / mono||Y||-||micro||2.0||Y||Y||Y|
|10.||Sony RX100 V||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|11.||Sony RX100 IV||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|12.||Sony RX100 II||Y||stereo / mono||-||-||micro||2.0||Y||Y||-|
|13.||Sony RX100||-||stereo / mono||-||-||micro||2.0||-||-||-|
Both the G9X and the RX100 III have been discontinued, but can regularly be found used on ebay. The RX100 III was replaced by the Sony RX100 IV, while the G9X was followed by the Canon G9 X Mark II. Further information on the features and operation of the G9X and RX100 III can be found, respectively, in the Canon G9 X Manual (free pdf) or the online Sony RX100 III Manual.
So how do things add up? Which of the two cameras – the Canon G9 X or the Sony RX100 III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon PowerShot G9 X:
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
- Less heavy: Is lighter (by 81g or 28 percent) and hence easier to carry around.
- More affordable: Was introduced into a lower priced category (34 percent cheaper at launch).
- More modern: Is somewhat more recent (announced 1 year and 4 months after the RX100 III).
Reasons to prefer the Sony Cyber-shot DSC-RX100 III:
- Better image quality: Scores markedly higher (4 points) in the DXO overall evaluation.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
- Better light gathering: Has a lens with a wider maximum aperture (f/1.8 vs f/2.0).
- Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
- Longer lasting: Gets more shots (320 versus 220) out of a single battery charge.
- More heavily discounted: Has been on the market for longer (launched in May 2014).
If the count of relative strengths (bullet points above) is taken as a measure, the RX100 III is the clear winner of the contest (10 : 6 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 G9 X and the Sony RX100 III place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera listing 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 remains incomplete and does no justice, for example, to the way the G9X or the RX100 III perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
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 G9 X||3.5/5||+ +||..||..||4.5/5||4.5/5||Oct 2015||529||ebay.com|
|2.||Sony RX100 III||5/5||+ +||..||82/100||4.5/5||5/5||May 2014||799||ebay.com|
|3.||Canon G9 X Mark II||4/5||..||4/5||75/100||4.5/5||4.5/5||Jan 2017||529||amazon.com|
|4.||Canon G7 X Mark II||4.5/5||+ +||..||81/100||4.5/5||4.5/5||Feb 2016||699||ebay.com|
|5.||Canon M10||..||..||..||..||..||4/5||Oct 2015||499||ebay.com|
|6.||Canon G7 X||4/5||+ +||..||77/100||4.5/5||4.5/5||Sep 2014||699||ebay.com|
|7.||Nikon 1 J4||3/5||..||..||..||4.5/5||4/5||Apr 2014||549||ebay.com|
|8.||Panasonic FZ1000||4/5||+ +||..||82/100||4.5/5||4.5/5||Jun 2014||899||ebay.com|
|9.||Sony RX100 VII||4.5/5||..||4/5||..||4/5||5/5||Jul 2019||1,199||amazon.com|
|10.||Sony RX100 V||4.5/5||+ +||..||83/100||4/5||4.5/5||Oct 2016||999||ebay.com|
|11.||Sony RX100 IV||4.5/5||+ +||..||85/100||4/5||4.5/5||Jun 2015||999||ebay.com|
|12.||Sony RX100 II||5/5||+ +||..||79/100||4.5/5||4.5/5||Jun 2013||749||ebay.com|
|13.||Sony RX100||5/5||+ +||..||78/100||4/5||5/5||Jun 2012||649||ebay.com|
|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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
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Specifications: Canon G9 X vs Sony RX100 III
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||Sony RX100 III|
|Camera Type||Fixed lens compact camera||Fixed lens compact camera|
|Camera Lens||28-84mm f/2.0-4.9||24-70mm f/1.8-2.8|
|Launch Date||October 2015||May 2014|
|Launch Price||USD 529||USD 799|
|Sensor Specs||Canon G9 X||Sony RX100 III|
|Sensor Format||1" Sensor||1" Sensor|
|Sensor Size||13.2 x 8.8 mm||13.2 x 8.8 mm|
|Sensor Area||116.16 mm2||116.16 mm2|
|Sensor Diagonal||15.9 mm||15.9 mm|
|Sensor Resolution||20 Megapixels||20 Megapixels|
|Image Resolution||5472 x 3648 pixels||5472 x 3648 pixels|
|Pixel Pitch||2.41 μm||2.41 μm|
|Pixel Density||17.18 MP/cm2||17.18 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||1080/60p Video|
|ISO Setting||125 - 12,800 ISO||100 - 12,800 ISO|
|ISO Boost||no Enhancement||80 - 25,600 ISO|
|Image Processor||DIGIC 6||BIONZ X|
|DXO Sensor Quality (score)||63||67|
|DXO Color Depth (bits)||21.5||22.4|
|DXO Dynamic Range (EV)||12.3||12.3|
|DXO Low Light (ISO)||495||495|
|Screen Specs||Canon G9 X||Sony RX100 III|
|Viewfinder Type||no viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||1440k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1229k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon G9 X||Sony RX100 III|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/2000s||1/2000s|
|Continuous Shooting||6 shutter flaps/s||10 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon G9 X||Sony RX100 III|
|External Flash||no Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Body Specs||Canon G9 X||Sony RX100 III|
|Battery Life (CIPA)||220 shots per charge||320 shots per charge|
|In-Camera Charging||USB charging||USB charging|
98 x 58 x 31 mm
(3.9 x 2.3 x 1.2 in)
102 x 58 x 41 mm
(4.0 x 2.3 x 1.6 in)
|Camera Weight||209 g (7.4 oz)||290 g (10.2 oz)|
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