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Sony RX100 III versus Canon G9 X

The Sony Cyber-shot DSC-RX100 III and the Canon PowerShot G9 X are two digital cameras that were officially introduced, respectively, in May 2014 and October 2015. Both the RX100 III and the G9X are fixed lens compact cameras that are equipped with an one-inch sensor. Both cameras offer a resolution of 20 megapixel. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Sony RX100 III vs Canon G9 X

An illustration of the physical size and weight of the Sony RX100 III and the Canon G9 X 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 size dimensions are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the RX100 III – represents 100 percent across all the size and weight measures).

Compare Sony RX100 III vs Canon G9 X
Compare RX100 III versus G9X top
Compare RX100 III and G9X rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G9 X is somewhat smaller (4 percent) than the Sony RX100 III. Moreover, the G9X is markedly lighter (28 percent) than the RX100 III. In this context, it is worth noting that neither the RX100 III nor the G9X are weather-sealed.

Concerning battery life, the RX100 III gets 320 shots out of its NP-BX1 battery, while the G9X can take 220 images on a single charge of its NB-13L power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Sony RX100 III» 4.0 in 2.3 in 1.6 in 10.2 oz 320 n May 2014 799- i Sony RX100 III
Canon G9 X« 3.9 in 2.3 in 1.2 in 7.4 oz 220 n Oct 2015 529- i Canon G9 X
Canon G9 X Mark II« » 3.9 in 2.3 in 1.2 in 7.3 oz 235 n Jan 2017 529 i i Canon G9 X Mark II
Canon G7 X Mark II« » 4.2 in 2.4 in 1.7 in 11.3 oz 265 n Feb 2016 699 i i Canon G7 X Mark II
Canon G5 X« » 4.4 in 3.0 in 1.7 in 12.5 oz 210 n Oct 2015 799 i i Canon G5 X
Canon M10« » 4.3 in 2.6 in 1.4 in 10.6 oz 255 n Oct 2015 499- i Canon M10
Canon G7 X« » 4.1 in 2.4 in 1.6 in 10.7 oz 210 n Sep 2014 699- i Canon G7 X
Panasonic FZ1000« » 5.4 in 3.9 in 5.2 in 29.3 oz 360 n Jun 2014 899- i Panasonic FZ1000
Ricoh GR II« » 4.6 in 2.5 in 1.4 in 8.9 oz 320 n Jun 2015 699- i Ricoh GR II
Ricoh GR« » 4.6 in 2.4 in 1.4 in 8.6 oz 290 n Apr 2013 799- i Ricoh GR
Sony RX100 V« » 4.0 in 2.3 in 1.6 in 10.5 oz 220 n Oct 2016 999 i i Sony RX100 V
Sony RX100 IV« » 4.0 in 2.3 in 1.6 in 10.5 oz 280 n Jun 2015 999- i Sony RX100 IV
Sony A5100« » 4.3 in 2.5 in 1.4 in 10.0 oz 400 n Aug 2014 549 i i Sony A5100
Sony RX100 II« » 4.0 in 2.3 in 1.5 in 9.9 oz 350 n Jun 2013 749- i Sony RX100 II
Sony RX100« » 4.0 in 2.3 in 1.4 in 8.5 oz 330 n Jun 2012 649- i Sony RX100

The camera’s price is obviously a critical decision-making factor. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G9X was launched at a markedly lower price (by 34 percent) than the RX100 III, which puts it into a different market segment. 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.

 

Sensor comparison: Sony RX100 III vs Canon G9 X

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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies 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.

Sony RX100 III and Canon G9 X sensor measures

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 20 megapixel. This similarity in sensor specs implies that both the RX100 III and the G9X 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.

RX100 III versus G9X MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 review, the RX100 III has a notably higher overall DXO score than the G9X (overall score 4 points higher), which gives it an advantage in terms of imaging quality. This 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.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Sony RX100 III» 1-inch 20.0 5472 36481080/60p22.412.349567Sony RX100 III
Canon G9 X« 1-inch 20.0 5472 36481080/60p21.512.349563Canon G9 X
Canon G9 X Mark II« » 1-inch 20.0 5472 36481080/60p21.912.552265Canon G9 X Mark II
Canon G7 X Mark II« » 1-inch 20.0 5472 36481080/60p----Canon G7 X Mark II
Canon G5 X« » 1-inch 20.0 5472 36481080/60p----Canon G5 X
Canon M10« » APS-C 17.9 5184 34561080/30p22.211.475365Canon M10
Canon G7 X« » 1-inch 20.0 5472 36481080/60p23.012.755671Canon G7 X
Panasonic FZ1000« » 1-inch 20.0 5472 36484K/30p22.111.751764Panasonic FZ1000
Ricoh GR II« » APS-C 16.1 4928 32641080/30p23.613.7107880Ricoh GR II
Ricoh GR« » APS-C 16.1 4928 32641080/30p23.613.597278Ricoh GR
Sony RX100 V« » 1-inch 20.0 5472 36484K/30p22.812.458670Sony RX100 V
Sony RX100 IV« » 1-inch 20.0 5472 36484K/30p22.812.659170Sony RX100 IV
Sony A5100« » APS-C 24.0 6000 40001080/60p23.812.7134780Sony A5100
Sony RX100 II« » 1-inch 20.0 5472 36481080/60p22.512.448367Sony RX100 II
Sony RX100« » 1-inch 20.0 5472 36481080/60p22.612.439066Sony RX100

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60p).

 

Feature comparison: Sony RX100 III vs Canon G9 X

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 adjacent table lists some of the other core features of the Sony RX100 III and Canon G9 X along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or in the dpreview camera hub.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Sony RX100 III»1440 n 3.0 1229 tilting n 2000 10.0 Y Y Sony RX100 III
Canon G9 X«- n 3.0 1040 fixed Y 2000 6.0 Y Y Canon G9 X
Canon G9 X Mark II« »- n 3.0 1040 fixed Y 2000 8.2 Y Y Canon G9 X Mark II
Canon G7 X Mark II« »- n 3.0 1040 tilting Y 2000 8.0 Y Y Canon G7 X Mark II
Canon G5 X« »2360 n 3.0 1040 swivel Y 2000 5.9 Y Y Canon G5 X
Canon M10« »- n 3.0 1040 tilting Y 4000 4.6 Y n Canon M10
Canon G7 X« »- n 3.0 1040 tilting Y 2000 6.5 Y Y Canon G7 X
Panasonic FZ1000« »2359 n 3.0 921 swivel n 4000 12.0 Y Y Panasonic FZ1000
Ricoh GR II« »- n 3.0 1230 fixed n 4000 4.0 Y n Ricoh GR II
Ricoh GR« »- n 3.0 1230 fixed n 4000 4.0 Y n Ricoh GR
Sony RX100 V« »2359 n 3.0 1229 tilting n 2000 24.0 Y Y Sony RX100 V
Sony RX100 IV« »2359 n 3.0 1228 tilting n 2000 16.0 Y Y Sony RX100 IV
Sony A5100« »- n 3.0 922 tilting Y 4000 6.0 Y n Sony A5100
Sony RX100 II« »- n 3.0 1229 tilting n 2000 10.0 Y Y Sony RX100 II
Sony RX100« »- n 3.0 1229 fixed n 2000 10.0 Y Y Sony RX100

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.

Both the RX100 III and the G9X have zoom lenses build in. The RX100 III has a 24-70mm f/1.8-2.8 optic and the G9X offers a 28-84mm f/2.0-4.9 (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 RX100 III writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the G9X uses SDXC cards.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
Sony RX100 III»-stereomono--micro2.0YY-Sony RX100 III
Canon G9 X«-stereomono--micro2.0YY-Canon G9 X
Canon G9 X Mark II« »-stereomono--micro2.0YYYCanon G9 X Mark II
Canon G7 X Mark II« »-stereomono--micro2.0YY-Canon G7 X Mark II
Canon G5 X« »YstereomonoYYmini2.0YY-Canon G5 X
Canon M10« »-stereomono--mini2.0YY-Canon M10
Canon G7 X« »-stereomono--micro2.0YY-Canon G7 X
Panasonic FZ1000« »YstereomonoY-micro2.0YY-Panasonic FZ1000
Ricoh GR II« »Ystereomono--micro2.0YY-Ricoh GR II
Ricoh GR« »Ymonomono--micro2.0---Ricoh GR
Sony RX100 V« »-stereomono--micro2.0YY-Sony RX100 V
Sony RX100 IV« »-stereomono--micro2.0YY-Sony RX100 IV
Sony A5100« »-stereomono--micro2.0YY-Sony A5100
Sony RX100 II« »Ystereomono--micro2.0YY-Sony RX100 II
Sony RX100« »-stereomono--micro2.0---Sony RX100

Both the RX100 III and the G9X 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.

Review summary: Sony RX100 III vs Canon G9 X

So what is the bottom line? Is the Sony RX100 III better than the Canon G9 X or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Sony Cyber-shot DSC-RX100 III:

  • Better image quality: Scores markedly higher (4 points) in the DXO overall assessment.
  • Easier framing: Has an electronic viewfinder for image framing 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.
  • 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: Can take more shots (320 versus 220) on a single battery charge.
  • More heavily discounted: Has been on the market for longer (launched in May 2014).

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Advantages of the Canon PowerShot G9 X:

  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
  • Less heavy: Has a lower weight (by 81g or 28 percent) and is thus easier to take along.
  • More affordable: Was introduced into a lower priced category (34 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year and 4 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the RX100 III is the clear winner of the match-up (9 : 5 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.

RX100 III 09:05 G9X

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the RX100 III or the G9X. 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 hands-on reviews by experts are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Sony RX100 III»HiRec82/1004.5/54.5/55/5 May 2014 799- i Sony RX100 III
Canon G9 X«HiRec-4.5/54/54.5/5 Oct 2015 529- i Canon G9 X
Canon G9 X Mark II« »-75/1004.5/54.5/54.5/5 Jan 2017 529 i i Canon G9 X Mark II
Canon G7 X Mark II« »HiRec81/1004.5/54/54.5/5 Feb 2016 699 i i Canon G7 X Mark II
Canon G5 X« »HiRec78/1004.5/54/54.5/5 Oct 2015 799 i i Canon G5 X
Canon M10« »---rev4/5 Oct 2015 499- i Canon M10
Canon G7 X« »HiRec77/1004.5/53.5/54.5/5 Sep 2014 699- i Canon G7 X
Panasonic FZ1000« »HiRec82/1004.5/54.5/54.5/5 Jun 2014 899- i Panasonic FZ1000
Ricoh GR II« »--4.5/54.5/54.5/5 Jun 2015 699- i Ricoh GR II
Ricoh GR« »-79/1004.5/54.5/54.5/5 Apr 2013 799- i Ricoh GR
Sony RX100 V« »HiRec83/1004/55/54.5/5 Oct 2016 999 i i Sony RX100 V
Sony RX100 IV« »HiRec85/1004/54.5/54.5/5 Jun 2015 999- i Sony RX100 IV
Sony A5100« »Rec-4.5/54.5/55/5 Aug 2014 549 i i Sony A5100
Sony RX100 II« »HiRec79/1004.5/55/54.5/5 Jun 2013 749- i Sony RX100 II
Sony RX100« »HiRec78/1004/55/55/5 Jun 2012 649- i Sony RX100

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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. 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? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If you do not see the camera that you are looking for, please send me an email, and I will try to locate and add the respective data to the application.

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