Canon G3 X vs Sony RX10 III
The Canon PowerShot G3 X and the Sony Cyber-shot DSC-RX10 III are two digital cameras that were announced, respectively, in June 2015 and March 2016. Both the G3X and the RX10 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 G3 X and the Sony Cyber-shot DSC-RX10 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 G3 X and the Sony RX10 III 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 Sony RX10 III is notably larger (32 percent) than the Canon G3 X. Moreover, the RX10 III is substantially heavier (43 percent) than the G3X. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
Concerning battery life, the G3X gets 300 shots out of its NB-10L battery, while the RX10 III can take 420 images on a single charge of its NP-FW50 power pack. The power pack in the RX10 III can be charged via the USB port, which can be very convenient when travelling.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Canon G3 X||123 mm||77 mm||105 mm||733 g||300||Y||Jun 2015||999||ebay.com|
|2.||Sony RX10 III||133 mm||94 mm||127 mm||1051 g||420||Y||Mar 2016||1,499||ebay.com|
|3.||Canon 80D||139 mm||105 mm||79 mm||730 g||960||Y||Feb 2016||1,199||ebay.com|
|4.||Canon G9 X||98 mm||58 mm||31 mm||209 g||220||n||Oct 2015||529||ebay.com|
|5.||Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799||ebay.com|
|6.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199||ebay.com|
|7.||Nikon D7200||136 mm||107 mm||76 mm||765 g||1110||Y||Mar 2015||1,199||ebay.com|
|8.||Panasonic FZ1000||137 mm||99 mm||131 mm||831 g||360||n||Jun 2014||899||ebay.com|
|9.||Sony RX10 IV||133 mm||94 mm||145 mm||1095 g||400||Y||Sep 2017||1,699||amazon.com|
|10.||Sony RX100 V||102 mm||58 mm||41 mm||299 g||220||n||Oct 2016||999||ebay.com|
|11.||Sony RX10 II||129 mm||88 mm||102 mm||813 g||400||Y||Jun 2015||1,299||ebay.com|
|12.||Sony RX100 IV||102 mm||58 mm||41 mm||298 g||280||n||Jun 2015||999||ebay.com|
|13.||Sony RX10||129 mm||88 mm||102 mm||813 g||420||Y||Oct 2013||1,299||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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The G3X was launched at a markedly lower price (by 33 percent) than the RX10 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.
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.
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 G3X and the RX10 III have the same pixel density, as well as the same pixel size. It should, however, be noted that the RX10 III is a somewhat more recent model (by 9 months) than the G3X, and its sensor might have benefitted from technological advances during this time.
The Canon PowerShot G3 X 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 Sony Cyber-shot DSC-RX10 III are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 64-25600.
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.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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. Of the two cameras under consideration, the RX10 III has a markedly higher DXO score than the G3X (overall score 7 points higher), which will translate into better image quality. The advantage is based on 1.7 bits higher color depth, 0.3 EV in additional dynamic range, and 0.1 stops of reduced low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|1.||Canon G3 X||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|2.||Sony RX10 III||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
|4.||Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|5.||Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|9.||Sony RX10 IV||1-inch||20.0||5472||3648||4K/30p||22.0||12.2||408||63|
|10.||Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|11.||Sony RX10 II||1-inch||20.0||5472||3648||4K/30p||23.0||12.6||531||70|
|12.||Sony RX100 IV||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|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 can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the RX10 III provides a better video resolution than the G3X. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the RX10 III has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the G3X relies on live view and the rear LCD for framing. That said, the G3X can be equipped with an optional viewfinder – the EVF-DC1. The adjacent table lists some of the other core features of the Canon G3 X and Sony RX10 III along with similar information for a selection of comparators.
|1.||Canon G3 X||optional||n||3.2 / 1620||tilting||Y||1/2000s||5.9/s||Y||Y|
|2.||Sony RX10 III||2359||Y||3.0 / 1229||tilting||n||1/2000s||14.0/s||Y||Y|
|3.||Canon 80D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|4.||Canon G9 X||none||n||3.0 / 1040||fixed||Y||1/2000s||6.0/s||Y||Y|
|5.||Canon 7D II||optical||Y||3.0 / 1040||fixed||n||1/8000s||10.0/s||Y||n|
|6.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|7.||Nikon D7200||optical||Y||3.2 / 1229||fixed||n||1/8000s||6.0/s||Y||n|
|8.||Panasonic FZ1000||2359||n||3.0 / 921||swivel||n||1/4000s||12.0/s||Y||Y|
|9.||Sony RX10 IV||2359||Y||3.0 / 1440||tilting||Y||1/2000s||24.0/s||Y||Y|
|10.||Sony RX100 V||2359||n||3.0 / 1229||tilting||n||1/2000s||24.0/s||Y||Y|
|11.||Sony RX10 II||2359||Y||3.0 / 1229||tilting||n||1/3200s||14.0/s||Y||Y|
|12.||Sony RX100 IV||2359||n||3.0 / 1228||tilting||n||1/2000s||16.0/s||Y||Y|
|13.||Sony RX10||1440||Y||3.0 / 1229||tilting||n||1/3200s||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 G3X has a touchscreen, while the RX10 III has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The G3X has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the RX10 III does not have a selfie-screen.
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the RX10 III is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
Both the G3X and the RX10 III have zoom lenses built in. The G3X has a 24-600mm f/2.8-5.6 optic and the RX10 III offers a 24-600mm f/2.4-4.0 (focal lengths in full frame equivalent terms). The RX10 III offers the faster maximum aperture.
The G3X writes its imaging data to SDXC cards, while the RX10 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 G3 X and Sony Cyber-shot DSC-RX10 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon G3 X||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|2.||Sony RX10 III||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|3.||Canon 80D||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|4.||Canon G9 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|5.||Canon 7D II||Y||stereo / mono||Y||Y||mini||3.0||-||-||-|
|6.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|7.||Nikon D7200||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|8.||Panasonic FZ1000||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|9.||Sony RX10 IV||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|10.||Sony RX100 V||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|11.||Sony RX10 II||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|12.||Sony RX100 IV||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|13.||Sony RX10||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
Both the G3X and the RX10 III have been discontinued, but can regularly be found used on ebay. The RX10 III was replaced by the Sony RX10 IV, while the G3X does not have a direct successor. Further information on the features and operation of the G3X and RX10 III can be found, respectively, in the Canon G3 X Manual (free pdf) or the online Sony RX10 III Manual.
So how do things add up? Is there a clear favorite between the Canon G3 X and the Sony RX10 III? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon PowerShot G3 X:
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1620k vs 1229k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- More compact: Is smaller (123x77mm vs 133x94mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 318g or 30 percent) and hence easier to carry around.
- More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in June 2015).
Advantages of the Sony Cyber-shot DSC-RX10 III:
- Better image quality: Scores markedly higher (7 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.7 bits more color depth).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Faster burst: Shoots at higher frequency (14 vs 5.9 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Better light gathering: Has a lens with a wider maximum aperture (f/2.4 vs f/2.8).
- Longer lasting: Gets more shots (420 versus 300) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- More modern: Was introduced somewhat (9 months) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the RX10 III emerges as the winner of the match-up (11 : 8 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 G3 X and the Sony RX10 III place the cameras among the top in their class? Find out in the latest Best Superzoom 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 G3X or the RX10 III perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 G3 X||3.5/5||+||..||..||4.5/5||4/5||Jun 2015||999||ebay.com|
|2.||Sony RX10 III||5/5||+||..||84/100||4.5/5||4.5/5||Mar 2016||1,499||ebay.com|
|3.||Canon 80D||4/5||+ +||4.5/5||84/100||4.5/5||4.5/5||Feb 2016||1,199||ebay.com|
|4.||Canon G9 X||3.5/5||+ +||..||..||4.5/5||4.5/5||Oct 2015||529||ebay.com|
|5.||Canon 7D II||4.5/5||+||3.5/5||84/100||4/5||4.5/5||Sep 2014||1,799||ebay.com|
|6.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199||ebay.com|
|7.||Nikon D7200||4/5||+ +||..||84/100||4.5/5||4.5/5||Mar 2015||1,199||ebay.com|
|8.||Panasonic FZ1000||4/5||+ +||..||82/100||4.5/5||4.5/5||Jun 2014||899||ebay.com|
|9.||Sony RX10 IV||5/5||+||3.5/5||84/100||4.5/5||5/5||Sep 2017||1,699||amazon.com|
|10.||Sony RX100 V||4.5/5||+ +||..||83/100||4/5||4.5/5||Oct 2016||999||ebay.com|
|11.||Sony RX10 II||5/5||+ +||..||82/100||4.5/5||4/5||Jun 2015||1,299||ebay.com|
|12.||Sony RX100 IV||4.5/5||+ +||..||85/100||4/5||4.5/5||Jun 2015||999||ebay.com|
|13.||Sony RX10||5/5||+||..||80/100||4.5/5||4.5/5||Oct 2013||1,299||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted 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. 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 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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 650D vs Sony RX10 III
- Canon G3 X vs Canon SX740
- Canon G3 X vs Epson R-D1
- Canon G3 X vs Leica D-LUX 6
- Canon G3 X vs Nikon D700
- Canon G3 X vs Nikon D850
- Canon G3 X vs Nikon W300
- Canon R vs Sony RX10 III
- Olympus E-600 vs Sony RX10 III
- Panasonic GX9 vs Sony RX10 III
- Sony A58 vs Sony RX10 III
- Sony RX10 III vs Sony ZV-E10
Specifications: Canon G3 X vs Sony RX10 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 G3 X||Sony RX10 III|
|Camera Type||Fixed lens compact camera||Fixed lens compact camera|
|Camera Lens||24-600mm f/2.8-5.6||24-600mm f/2.4-4.0|
|Launch Date||June 2015||March 2016|
|Launch Price||USD 999||USD 1,499|
|Sensor Specs||Canon G3 X||Sony RX10 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||4K/30p Video|
|ISO Setting||125 - 12,800 ISO||100 - 12,800 ISO|
|ISO Boost||125 - 25,600 ISO||64 - 25,600 ISO|
|Image Processor||DIGIC 6||BIONZ X|
|DXO Sensor Quality (score)||63||70|
|DXO Color Depth (bits)||21.4||23.1|
|DXO Dynamic Range (EV)||12.3||12.6|
|DXO Low Light (ISO)||521||472|
|Screen Specs||Canon G3 X||Sony RX10 III|
|Viewfinder Type||Viewfinder optional||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2359k dots|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.0inch|
|LCD Resolution||1620k dots||1229k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon G3 X||Sony RX10 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||5.9 shutter flaps/s||14 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/32000s|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon G3 X||Sony RX10 III|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Body Specs||Canon G3 X||Sony RX10 III|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||300 shots per charge||420 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
123 x 77 x 105 mm
(4.8 x 3.0 x 4.1 in)
133 x 94 x 127 mm
(5.2 x 3.7 x 5.0 in)
|Camera Weight||733 g (25.9 oz)||1051 g (37.1 oz)|
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