Canon G3 X vs SX730
The Canon PowerShot G3 X and the Canon PowerShot SX730 HS are two digital cameras that were officially introduced, respectively, in June 2015 and April 2017. Both the G3X and the SX730 are fixed lens compact cameras that are based on an one-inch (G3X) and a 1/2.3-inch (SX730) sensor. The G3X has a resolution of 20 megapixels, whereas the SX730 provides 20.2 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 G3 X and the Canon PowerShot SX730 HS? 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 Canon SX730 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.
The SX730 can be obtained in two different colors (black, silver), while the G3X 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 Canon SX730 is notably smaller (26 percent) than the Canon G3 X. Moreover, the SX730 is substantially lighter (59 percent) than the G3X. It is worth mentioning in this context that the G3X is splash and dust resistant, while the SX730 does not feature any corresponding weather-sealing.
Concerning battery life, the G3X gets 300 shots out of its NB-10L battery, while the SX730 can take 250 images on a single charge of its NB-13L power pack. The power pack in the SX730 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||amazon.com|
|2.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399||ebay.com|
|3.||Canon SX740||110 mm||64 mm||40 mm||299 g||265||n||Jul 2018||399||amazon.com|
|4.||Canon 80D||139 mm||105 mm||79 mm||730 g||960||Y||Feb 2016||1,199||ebay.com|
|5.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699||ebay.com|
|6.||Canon SX420||104 mm||69 mm||85 mm||325 g||195||n||Jan 2016||299||ebay.com|
|7.||Canon SX720||110 mm||64 mm||36 mm||270 g||250||n||Feb 2016||379||ebay.com|
|8.||Canon G9 X||98 mm||58 mm||31 mm||209 g||220||n||Oct 2015||529||ebay.com|
|9.||Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799||ebay.com|
|10.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199||ebay.com|
|11.||Nikon D7200||136 mm||107 mm||76 mm||765 g||1110||Y||Mar 2015||1,199||ebay.com|
|12.||Panasonic TZ90||112 mm||67 mm||41 mm||322 g||380||n||Apr 2017||449||ebay.com|
|13.||Panasonic FZ1000||137 mm||99 mm||131 mm||831 g||360||n||Jun 2014||899||ebay.com|
|14.||Sony RX10 III||133 mm||94 mm||127 mm||1051 g||420||Y||Mar 2016||1,499||ebay.com|
|15.||Sony RX100 V||102 mm||58 mm||41 mm||299 g||220||n||Oct 2016||999||ebay.com|
|16.||Sony RX10 II||129 mm||88 mm||102 mm||813 g||400||Y||Jun 2015||1,299||ebay.com|
|17.||Sony RX100 IV||102 mm||58 mm||41 mm||298 g||280||n||Jun 2015||999||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 SX730 was launched at a markedly lower price (by 60 percent) than the G3X, 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.
The size of the imaging sensor is a crucial determinant 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 G3 X features an one-inch sensor and the Canon SX730 a 1/2.3-inch sensor. The sensor area in the SX730 is 76 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 5.6. The sensor in the G3X has a native 3:2 aspect ratio, while the one in the SX730 offers a 4:3 aspect.
Despite having a smaller sensor, the SX730 offers a slightly higher resolution of 20.2 megapixels, compared with 20 MP of the G3X. 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 1.18μm versus 2.41μm for the G3X). However, it should be noted that the SX730 is a somewhat more recent model (by 1 year and 9 months) than the G3X, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage. Coming back to sensor resolution, it should be mentioned that the SX730 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
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 Canon PowerShot SX730 HS are ISO 80 to ISO 3200 (no boost).
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.
For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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 G3 X||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|5.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.8||11.9||260||62|
|8.||Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|9.||Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|14.||Sony RX10 III||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
|15.||Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|16.||Sony RX10 II||1-inch||20.0||5472||3648||4K/30p||23.0||12.6||531||70|
|17.||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, and both provide the same movie specifications (1080/60p).
Apart from body and sensor, cameras can and do differ across a range of features. The G3X and the SX730 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. That said, the G3X can be equipped with an optional viewfinder – the EVF-DC1. The following table reports on some other key feature differences and similarities of the Canon G3 X, the Canon SX730, and comparable cameras.
|1.||Canon G3 X||optional||n||3.2 / 1620||tilting||Y||1/2000s||5.9/s||Y||Y|
|2.||Canon SX730||none||n||3.0 / 922||tilting||n||1/3200s||5.9/s||Y||Y|
|3.||Canon SX740||none||n||3.0 / 922||tilting||n||1/3200s||10.0/s||Y||Y|
|4.||Canon 80D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|5.||Canon G7 X Mark II||none||n||3.0 / 1040||tilting||Y||1/2000s||8.0/s||Y||Y|
|6.||Canon SX420||none||n||3.0 / 230||fixed||n||1/4000s||0.5/s||Y||Y|
|7.||Canon SX720||none||n||3.0 / 922||fixed||n||1/3200s||5.9/s||Y||Y|
|8.||Canon G9 X||none||n||3.0 / 1040||fixed||Y||1/2000s||6.0/s||Y||Y|
|9.||Canon 7D II||optical||Y||3.0 / 1040||fixed||n||1/8000s||10.0/s||Y||n|
|10.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|11.||Nikon D7200||optical||Y||3.2 / 1229||fixed||n||1/8000s||6.0/s||Y||n|
|12.||Panasonic TZ90||1166||n||3.0 / 1040||tilting||Y||1/2000s||10.0/s||Y||Y|
|13.||Panasonic FZ1000||2359||n||3.0 / 921||swivel||n||1/4000s||12.0/s||Y||Y|
|14.||Sony RX10 III||2359||Y||3.0 / 1229||tilting||n||1/2000s||14.0/s||Y||Y|
|15.||Sony RX100 V||2359||n||3.0 / 1229||tilting||n||1/2000s||24.0/s||Y||Y|
|16.||Sony RX10 II||2359||Y||3.0 / 1229||tilting||n||1/3200s||14.0/s||Y||Y|
|17.||Sony RX100 IV||2359||n||3.0 / 1228||tilting||n||1/2000s||16.0/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 SX730 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.
Both the G3X and the SX730 have zoom lenses built in. The G3X has a 24-600mm f/2.8-5.6 optic and the SX730 offers a 24-960mm f/3.3-6.9 (focal lengths in full frame equivalent terms). Hence, the G3X and SX730 provide the same view at the wide-angle end, but the SX730 has more tele-photo reach at the long end. The G3X offers the faster maximum aperture.
Concerning the storage of imaging data, both the G3X and the SX730 write their files to SDXC cards. The G3X supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the SX730 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 G3 X and Canon PowerShot SX730 HS 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.||Canon SX730||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|3.||Canon SX740||-||stereo / mono||-||-||micro||2.0||Y||-||Y|
|4.||Canon 80D||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|5.||Canon G7 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|6.||Canon SX420||-||mono / mono||-||-||-||2.0||Y||Y||-|
|7.||Canon SX720||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|8.||Canon G9 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|9.||Canon 7D II||Y||stereo / mono||Y||Y||mini||3.0||-||-||-|
|10.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|11.||Nikon D7200||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|12.||Panasonic TZ90||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|13.||Panasonic FZ1000||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|14.||Sony RX10 III||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|15.||Sony RX100 V||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|16.||Sony RX10 II||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|17.||Sony RX100 IV||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
It is notable that the G3X has a hotshoe, while the SX730 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
The G3X is a recent model that features in the current product line-up of Canon. In contrast, the SX730 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the SX730 was succeeded by the Canon SX730 HS. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So what conclusions can be drawn? Is there a clear favorite between the Canon G3 X and the Canon SX730? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon PowerShot G3 X:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More framing options: Can be equipped with a hotshoe-mounted accessory-viewfinder.
- 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 922k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Better light gathering: Has a lens with a wider maximum aperture (f/2.8 vs f/3.3).
- Longer lasting: Can take more shots (300 versus 250) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More heavily discounted: Has been on the market for longer (launched in June 2015).
Reasons to prefer the Canon PowerShot SX730 HS:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Faster shutter: Has higher mechanical shutter speed (1/3200s vs 1/2000s) to freeze action.
- More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
- More compact: Is smaller (110x64mm vs 123x77mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 433g or 59 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced into a lower priced category (60 percent cheaper at launch).
- More modern: Was introduced somewhat (1 year and 9 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the G3X is the clear winner of the match-up (17 : 9 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 Canon SX730 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the G3X and the SX730 in practical situations. 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 why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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 G3 X||3.5/5||+||..||..||4.5/5||4/5||Jun 2015||999||amazon.com|
|2.||Canon SX730||..||+||..||..||4/5||4/5||Apr 2017||399||ebay.com|
|3.||Canon SX740||..||+||3.5/5||..||4/5||4/5||Jul 2018||399||amazon.com|
|4.||Canon 80D||4/5||+ +||4.5/5||84/100||4.5/5||4.5/5||Feb 2016||1,199||ebay.com|
|5.||Canon G7 X Mark II||4.5/5||+ +||..||81/100||4.5/5||4.5/5||Feb 2016||699||ebay.com|
|6.||Canon SX420||..||..||..||..||..||3/5||Jan 2016||299||ebay.com|
|7.||Canon SX720||..||+||..||..||4/5||4.5/5||Feb 2016||379||ebay.com|
|8.||Canon G9 X||3.5/5||+ +||..||..||4.5/5||4.5/5||Oct 2015||529||ebay.com|
|9.||Canon 7D II||4.5/5||+||3.5/5||84/100||4/5||4.5/5||Sep 2014||1,799||ebay.com|
|10.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199||ebay.com|
|11.||Nikon D7200||4/5||+ +||..||84/100||4.5/5||4.5/5||Mar 2015||1,199||ebay.com|
|12.||Panasonic TZ90||..||+ +||..||4/5||4/5||4/5||Apr 2017||449||ebay.com|
|13.||Panasonic FZ1000||4/5||+ +||..||82/100||4.5/5||4.5/5||Jun 2014||899||ebay.com|
|14.||Sony RX10 III||5/5||+||..||84/100||4.5/5||4.5/5||Mar 2016||1,499||ebay.com|
|15.||Sony RX100 V||4.5/5||+ +||..||83/100||4/5||4.5/5||Oct 2016||999||ebay.com|
|16.||Sony RX10 II||5/5||+ +||..||82/100||4.5/5||4/5||Jun 2015||1,299||ebay.com|
|17.||Sony RX100 IV||4.5/5||+ +||..||85/100||4/5||4.5/5||Jun 2015||999||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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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 1Ds Mark II vs Canon G3 X
- Canon D60 vs Canon G3 X
- Canon G3 X vs Leica M Typ 240
- Canon G3 X vs Olympus E-M1 II
- Canon G3 X vs Panasonic G6
- Canon G3 X vs Samsung NX30
- Canon M vs Canon SX730
- Canon SX730 vs Canon T3
- Canon SX730 vs Nikon D7200
- Canon SX730 vs Olympus XZ-2
- Canon SX730 vs Panasonic G80
- Canon SX730 vs Sony ZV-1
Specifications: Canon G3 X vs Canon SX730
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||Canon SX730|
|Camera Type||Fixed lens compact camera||Fixed lens compact camera|
|Camera Lens||24-600mm f/2.8-5.6||24-960mm f/3.3-6.9|
|Launch Date||June 2015||April 2017|
|Launch Price||USD 999||USD 399|
|Sensor Specs||Canon G3 X||Canon SX730|
|Sensor Format||1" Sensor||1/2.3" Sensor|
|Sensor Size||13.2 x 8.8 mm||6.17 x 4.55 mm|
|Sensor Area||116.16 mm2||28.0735 mm2|
|Sensor Diagonal||15.9 mm||7.7 mm|
|Sensor Resolution||20 Megapixels||20.2 Megapixels|
|Image Resolution||5472 x 3648 pixels||5184 x 3888 pixels|
|Pixel Pitch||2.41 μm||1.18 μm|
|Pixel Density||17.18 MP/cm2||71.80 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/60p Video||1080/60p Video|
|ISO Setting||125 - 12,800 ISO||80 - 3,200 ISO|
|ISO Boost||125 - 25,600 ISO||no Enhancement|
|Image Processor||DIGIC 6||DIGIC 6|
|DXO Sensor Quality (score)||63||..|
|DXO Color Depth (bits)||21.4||..|
|DXO Dynamic Range (EV)||12.3||..|
|DXO Low Light (ISO)||521||..|
|Screen Specs||Canon G3 X||Canon SX730|
|Viewfinder Type||Viewfinder optional||no viewfinder|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.0inch|
|LCD Resolution||1620k dots||922k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon G3 X||Canon SX730|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||5.9 shutter flaps/s||5.9 shutter flaps/s|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Canon G3 X||Canon SX730|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon G3 X||Canon SX730|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||300 shots per charge||250 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)
110 x 64 x 40 mm
(4.3 x 2.5 x 1.6 in)
|Camera Weight||733 g (25.9 oz)||300 g (10.6 oz)|
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