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Sony RX100 versus Canon G9 X Mark II

The Sony Cyber-shot DSC-RX100 and the Canon PowerShot G9 X Mark II are two digital cameras that were officially introduced, respectively, in June 2012 and January 2017. Both the RX100 and the G9X Mark II are fixed lens compact cameras that are equipped with an one-inch sensor. Both cameras offer a resolution of 20 megapixel.

Body comparison

An illustration of the physical size and weight of the Sony RX100 and the Canon G9 X Mark II is provided in the side-by-side display below. 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. You can also use the toggle button 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 side – the RX100 – represents the basis for the calculations across all the size and weight measures).

Sony RX100 vs Canon G9 X Mark II front
RX100 versus G9X Mark II top view
RX100 and G9X Mark II rear side
Body view (RX100 on the left)

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G9 X Mark II is somewhat smaller (4 percent) than the Sony RX100. Moreover, the G9X Mark II is markedly lighter (14 percent) than the RX100. In this context, it is worth noting that neither the RX100 nor the G9X Mark II are weather-sealed.

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, 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 comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Sony RX100 (⇒ rgt) 4.0 in 2.3 in 1.4 in 8.5 oz 330 no 2012 649discont. check
Canon G9 X Mark II (⇒ lft) 3.9 in 2.3 in 1.2 in 7.3 oz 235 no 2017 529 latest check
Canon M100 (⇒ lft | rgt) 4.3 in 2.6 in 1.4 in 10.7 oz 295 no 2017 499 latest check
Canon SL2 (⇒ lft | rgt) 4.8 in 3.7 in 2.8 in 16.0 oz 650 no 2017 549 latest check
Canon M5 (⇒ lft | rgt) 4.6 in 3.5 in 2.4 in 15.1 oz 295 no 2016 979 latest check
Canon G9 X (⇒ lft | rgt) 3.9 in 2.3 in 1.2 in 7.4 oz 220 no 2015 529discont. check
Canon M10 (⇒ lft | rgt) 4.3 in 2.6 in 1.4 in 10.6 oz 255 no 2015 499discont. check
Canon G7 X (⇒ lft | rgt) 4.1 in 2.4 in 1.6 in 10.7 oz 210 no 2014 699discont. check
Canon T5i (⇒ lft | rgt) 5.2 in 3.9 in 3.1 in 20.5 oz 440 no 2013 649discont. check
Canon SL1 (⇒ lft | rgt) 4.6 in 3.6 in 2.7 in 14.4 oz 380 no 2013 549discont. check
Sony RX100 V (⇒ lft | rgt) 4.0 in 2.3 in 1.6 in 10.5 oz 220 no 2016 999 latest check
Sony RX100 IV (⇒ lft | rgt) 4.0 in 2.3 in 1.6 in 10.5 oz 280 no 2015 999discont. check
Sony RX100 III (⇒ lft | rgt) 4.0 in 2.3 in 1.6 in 10.2 oz 320 no 2014 799discont. check
Sony RX10 (⇒ lft | rgt) 5.1 in 3.5 in 4.0 in 28.7 oz 420 YES 2013 1,299discont. check
Sony RX100 II (⇒ lft | rgt) 4.0 in 2.3 in 1.5 in 9.9 oz 350 no 2013 749discont. check
Sony RX1R (⇒ lft | rgt) 4.4 in 2.6 in 2.8 in 17.0 oz 270 no 2013 2,799discont. check
Sony RX1 (⇒ lft | rgt) 4.4 in 2.6 in 2.8 in 17.0 oz 270 no 2012 2,799discont. check

The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G9X Mark II was launched at a somewhat lower price (by 18 percent) than the RX100, which makes it more attractive for photographers on a tight budget. 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

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 are more costly to manufacture and tent to 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.

Sony RX100 and Canon G9 X Mark II sensor measures
Sensor size

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 and the G9X Mark II have the same pixel density, as well as the same pixel size. It should, however, be noted that the G9X Mark II is much more recent (by 4 years and 7 months) than the RX100, and its sensor will have benefitted from technological advances during this time.

RX100 versus G9X Mark II MP
Sensor resolution

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 image quality. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Sony RX100 (⇒ rgt) 1-inch 20.0 5472 3648 1080/60p 22.6 12.4 390 66
Canon G9 X Mark II (⇒ lft) 1-inch 20.0 5472 3648 1080/60p 21.9 12.5 522 65
Canon M100 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon SL2 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.6 13.4 1041 79
Canon M5 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.4 12.4 1262 77
Canon G9 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 21.5 12.3 495 63
Canon M10 (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.2 11.4 753 65
Canon G7 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 23.0 12.7 556 71
Canon T5i (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.7 11.2 681 61
Canon SL1 (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.8 11.3 843 63
Sony RX100 V (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.8 12.4 586 70
Sony RX100 IV (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.8 12.6 591 70
Sony RX100 III (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 22.4 12.3 495 67
Sony RX10 (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 22.9 12.6 474 69
Sony RX100 II (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 22.5 12.4 483 67
Sony RX1R (⇒ lft | rgt) Full Frame 24.0 6000 4000 1080/60p 25.0 13.6 2537 91
Sony RX1 (⇒ lft | rgt) Full Frame 24.0 6000 4000 1080/60p 25.1 14.3 2534 93

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

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The RX100 and the G9X Mark II are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. The following table reports on some other key feature differences and similarities of the Sony RX100, the Canon G9 X Mark II, and comparable cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Sony RX100 (⇒ rgt) no no 3.0 1229 fixed YES 2000 10.0 YES no
Canon G9 X Mark II (⇒ lft) no no 3.0 1040 fixed YES 2000 8.2 6 no
Canon M100 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 6.1 5 no
Canon SL2 (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 9.8 no
Canon M5 (⇒ lft | rgt) 2360 no 3.2 1620 tilting YES 4000 9.0 5 no
Canon G9 X (⇒ lft | rgt) no no 3.0 1040 fixed YES 2000 6.0 6 no
Canon M10 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 4.6 5 no
Canon G7 X (⇒ lft | rgt) no no 3.0 1040 tilting YES 2000 6.5 7 no
Canon T5i (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 13 no
Canon SL1 (⇒ lft | rgt) optical no 3.0 1040 fixed YES 4000 4.9 9.4 no
Sony RX100 V (⇒ lft | rgt) 2359 no 3.0 1229 tilting no 2000 24.0 10.2 no
Sony RX100 IV (⇒ lft | rgt) 2359 no 3.0 1228 tilting no 2000 16.0 10.2 no
Sony RX100 III (⇒ lft | rgt) 1440 no 3.0 1229 tilting no 2000 10.0 YES no
Sony RX10 (⇒ lft | rgt) 1440 YES 3.0 1229 tilting no 3200 10.0 10.2 no
Sony RX100 II (⇒ lft | rgt) no no 3.0 1229 tilting no 2000 10.0 15 no
Sony RX1R (⇒ lft | rgt) no no 3.0 1229 fixed no 4000 5.0 6 no
Sony RX1 (⇒ lft | rgt) no no 3.0 1229 fixed no 4000 5.0 6 no

Both the RX100 and the G9X Mark II have zoom lenses build in. The RX100 has a 28-100mm f/1.8-4.9 optic and the G9X Mark II offers a 28-84mm f/2.0-4.9 (focal lengths in full frame equivalent terms). Hence, the Sony and Canon provide the same view at the wide-angle end, but the Canon has less tele-photo reach at the long end. The RX100 offers the faster maximum aperture.

The G9X Mark II is a current model that online retailers, such as amazon, will have in stock. In contrast, the RX100 has been discontinued (but it can be found pre-owned on ebay). As a replacement in the same line of cameras, the RX100 was succeeded by the Sony RX100 II.

Summary

So how do things add up? Is the Sony RX100 better than the Canon G9 X Mark II or vice versa? Below is a summary of the relative strengths of each of the two contestants.


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Advantages of the Sony Cyber-shot DSC-RX100:

  • More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
  • Faster burst: Shoots at higher frequency (10 vs 8.2 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).
  • More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
  • Longer lasting: Can take more shots (330 versus 235) on a single battery charge.
  • More heavily discounted: Has been available for much longer (launched in June 2012).

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Reasons to prefer the Canon PowerShot G9 X Mark II:

  • Better low-light sensitivity: Can shoot in dim conditions (0.4 stops ISO advantage).
  • Less heavy: Has a lower weight (by 34g or 14 percent) and is thus easier to take along.
  • More affordable: Was released into a lower priced segment (18 percent cheaper at launch).
  • More modern: Reflects 4 years and 7 months of technical progress since the RX100 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the RX100 emerges as the winner of the contest (6 : 4 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.

RX100 06:04 G9X Mark II

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the RX100 or the G9X Mark II handle or perform in practice. 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 table below summarizes the assessments of some of the best known camera review sites. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.

Review scores
Camera camera
labs
dp
review
ephoto
zine
imaging
resource
photography
blog
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Sony RX100 (⇒ rgt) HiRec 78/100 Silver 4/5 5/5 5/5 2012 649discont. check
Canon G9 X Mark II (⇒ lft) .. .. 4.5/5 4.5/5 4.5/5 2017 529 latest check
Canon M100 (⇒ lft | rgt) .. .. 4/5 .. 3.5/5 2017 499 latest check
Canon SL2 (⇒ lft | rgt) HiRec 78/100 Silver 4.5/5 - 4.5/5 2017 549 latest check
Canon M5 (⇒ lft | rgt) Rec 82/100 Silver 4/5 4.5/5 4/5 2016 979 latest check
Canon G9 X (⇒ lft | rgt) HiRec - 4.5/5 4/5 4.5/5 2015 529discont. check
Canon M10 (⇒ lft | rgt) - - - reviewed 4/5 2015 499discont. check
Canon G7 X (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 3.5/5 4.5/5 2014 699discont. check
Canon T5i (⇒ lft | rgt) - 76/100 Silver 4.5/5 4.5/5 4.5/5 2013 649discont. check
Canon SL1 (⇒ lft | rgt) Rec 78/100 Gold 4/5 4/5 4/5 2013 549discont. check
Sony RX100 V (⇒ lft | rgt) HiRec 83/100 Silver 4/5 5/5 4.5/5 2016 999 latest check
Sony RX100 IV (⇒ lft | rgt) HiRec 85/100 Gold 4/5 4.5/5 4.5/5 2015 999discont. check
Sony RX100 III (⇒ lft | rgt) HiRec 82/100 Gold 4.5/5 4.5/5 5/5 2014 799discont. check
Sony RX10 (⇒ lft | rgt) Rec 80/100 Gold 4.5/5 4.5/5 4.5/5 2013 1,299discont. check
Sony RX100 II (⇒ lft | rgt) HiRec 79/100 Silver 4.5/5 5/5 4.5/5 2013 749discont. check
Sony RX1R (⇒ lft | rgt) - - 4/5 reviewed 4.5/5 2013 2,799discont. check
Sony RX1 (⇒ lft | rgt) - 79/100 Gold 4/5 4.5/5 4.5/5 2012 2,799discont. check

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. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Other comparisons

If you would like to see a different side-by-side camera review, just make your choice using the following search menu. 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 the camera you are interested in is not available, please contact me, and I will try to update the database with the necessary infos.

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