Canon SX730 vs Sony RX100 IV
The Canon PowerShot SX730 HS and the Sony Cyber-shot DSC-RX100 IV are two digital cameras that were revealed to the public, respectively, in April 2017 and June 2015. Both the SX730 and the RX100 IV are fixed lens compact cameras that are based on a 1/2.3-inch (SX730) and an one-inch (RX100 IV) sensor. The Canon has a resolution of 20.2 megapixels, whereas the Sony provides 20 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 SX730 HS and the Sony Cyber-shot DSC-RX100 IV? 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 SX730 and the Sony RX100 IV 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 size dimensions are rounded to the nearest millimeter.
The SX730 can be obtained in two different colors (black, silver), while the RX100 IV 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 IV is notably smaller (16 percent) than the Canon SX730. Moreover, the RX100 IV is slightly lighter (1 percent) than the SX730. In this context, it is worth noting that neither the SX730 nor the RX100 IV are weather-sealed.
Concerning battery life, the SX730 gets 250 shots out of its NB-13L battery, while the RX100 IV can take 280 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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 SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399|
|2.||Sony RX100 IV||102 mm||58 mm||41 mm||298 g||280||n||Jun 2015||999|
|3.||Canon SX740||110 mm||64 mm||40 mm||299 g||265||n||Jul 2018||399|
|4.||Canon SX430||104 mm||69 mm||85 mm||323 g||195||n||Jan 2017||299|
|5.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699|
|6.||Canon SX420||104 mm||69 mm||85 mm||325 g||195||n||Jan 2016||299|
|7.||Canon SX540||120 mm||82 mm||92 mm||442 g||205||n||Jan 2016||399|
|8.||Canon SX720||110 mm||64 mm||36 mm||270 g||250||n||Feb 2016||379|
|9.||Canon SX710||113 mm||66 mm||35 mm||269 g||230||n||Jan 2015||349|
|10.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699|
|11.||Panasonic TS7||117 mm||76 mm||37 mm||319 g||300||Y||May 2018||449|
|12.||Panasonic ZS70||112 mm||67 mm||41 mm||322 g||380||n||Apr 2017||449|
|13.||Panasonic FZ1000||137 mm||99 mm||131 mm||831 g||360||n||Jun 2014||899|
|14.||Sony RX100 VII||102 mm||58 mm||43 mm||302 g||260||n||Jul 2019||1,199|
|15.||Sony HX99||102 mm||58 mm||36 mm||242 g||370||n||Aug 2018||449|
|16.||Sony RX100 V||102 mm||58 mm||41 mm||299 g||220||n||Oct 2016||999|
|17.||Sony RX100 III||102 mm||58 mm||41 mm||290 g||320||n||May 2014||799|
|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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The SX730 was launched at a markedly lower price (by 60 percent) than the RX100 IV, 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 SX730 features a 1/2.3-inch sensor and the Sony RX100 IV an one-inch sensor. The sensor area in the RX100 IV is 314 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 2.7. The sensor in the SX730 has a native 4:3 aspect ratio, while the one in the RX100 IV offers a 3:2 aspect.
Despite having a smaller sensor, the Canon SX730 offers a higher resolution of 20.2 megapixels, compared with 20 MP of the Sony RX100 IV. 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 RX100 IV). However, it should be noted that the SX730 is a somewhat more recent model (by 1 year and 9 months) than the RX100 IV, 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 SX730 HS has a native sensitivity range from ISO 80 to ISO 3200. The corresponding ISO settings for the Sony Cyber-shot DSC-RX100 IV are ISO 125 to ISO 12800, with the possibility to increase the ISO range to 80-25600.
For many cameras, data on sensor performance has been reported by DXO Mark. 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|2.||Sony RX100 IV||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|5.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.8||11.9||260||62|
|10.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|14.||Sony RX100 VII||1-inch||20.0||5472||3648||4K/30p||21.8||12.4||418||63|
|16.||Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|17.||Sony RX100 III||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||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. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the RX100 IV provides a better video resolution than the SX730. 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 RX100 IV has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the SX730 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon SX730 and Sony RX100 IV along with similar information for a selection of comparators.
|1.||Canon SX730||none||n||3.0 / 922||tilting||n||1/3200s||5.9/s||Y||Y|
|2.||Sony RX100 IV||2359||n||3.0 / 1228||tilting||n||1/2000s||16.0/s||Y||Y|
|3.||Canon SX740||none||n||3.0 / 922||tilting||n||1/3200s||10.0/s||Y||Y|
|4.||Canon SX430||none||n||3.0 / 230||fixed||n||1/4000s||0.5/s||Y||Y|
|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 SX540||none||n||3.0 / 461||fixed||n||1/2000s||5.9/s||Y||Y|
|8.||Canon SX720||none||n||3.0 / 922||fixed||n||1/3200s||5.9/s||Y||Y|
|9.||Canon SX710||none||n||3.0 / 922||fixed||n||1/3200s||6.0/s||Y||Y|
|10.||Canon G7 X||none||n||3.0 / 1040||tilting||Y||1/2000s||6.5/s||Y||Y|
|11.||Panasonic TS7||1170||n||3.0 / 1040||fixed||n||1/1300s||10.0/s||Y||Y|
|12.||Panasonic ZS70||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 RX100 VII||2359||n||3.0 / 921||tilting||Y||1/2000s||90.0/s||Y||Y|
|15.||Sony HX99||638||n||3.0 / 922||tilting||Y||1/2000s||10.0/s||Y||Y|
|16.||Sony RX100 V||2359||n||3.0 / 1229||tilting||n||1/2000s||24.0/s||Y||Y|
|17.||Sony RX100 III||1440||n||3.0 / 1229||tilting||n||1/2000s||10.0/s||Y||Y|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
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 RX100 IV 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 SX730 and the RX100 IV have zoom lenses built in. The SX730 has a 24-960mm f/3.3-6.9 optic and the RX100 IV offers a 24-70mm f/1.8-2.8 (focal lengths in full frame equivalent terms). Hence, the Canon and Sony provide the same view at the wide-angle end, but the Sony has less tele-photo reach at the long end. The RX100 IV offers the faster maximum aperture.
The SX730 writes its imaging data to SDXC cards, while the RX100 IV uses SDXC or Memory Stick PRO Duo cards. The RX100 IV 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 SX730 HS and Sony Cyber-shot DSC-RX100 IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon SX730||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|2.||Sony RX100 IV||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|3.||Canon SX740||-||stereo / mono||-||-||micro||2.0||Y||-||Y|
|4.||Canon SX430||-||mono / mono||-||-||-||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 SX540||-||stereo / mono||-||-||mini||2.0||Y||Y||-|
|8.||Canon SX720||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|9.||Canon SX710||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|10.||Canon G7 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|11.||Panasonic TS7||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|12.||Panasonic ZS70||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|13.||Panasonic FZ1000||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|14.||Sony RX100 VII||-||stereo / mono||Y||-||micro||2.0||Y||Y||Y|
|15.||Sony HX99||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|16.||Sony RX100 V||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|17.||Sony RX100 III||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
Both the SX730 and the RX100 IV have been discontinued, but can regularly be found used on eBay. The RX100 IV was replaced by the Sony RX100 IV, while the SX730 was followed 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 and Sony websites.
So what is the bottom line? Is the Canon SX730 better than the Sony RX100 IV or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of 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.
- 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: Is somewhat more recent (announced 1 year and 9 months after the RX100 IV).
Advantages of the Sony Cyber-shot DSC-RX100 IV:
- 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 video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (1228k vs 922k dots).
- Faster burst: Shoots at higher frequency (16 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/1.8 vs f/3.3).
- More compact: Is smaller (102x58mm vs 110x64mm) and will fit more readily into a bag.
- Longer lasting: Gets more shots (280 versus 250) out of a single battery charge.
- 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).
If the count of relative strengths (bullet points above) is taken as a measure, the RX100 IV is the clear winner of the contest (15 : 6 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 SX730 and the Sony RX100 IV place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best Travel-Zoom Camera listings 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 SX730 or the RX100 IV 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 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 SX730||..||+||..||..||4/5||4/5||Apr 2017||399|
|2.||Sony RX100 IV||4.5/5||+ +||..||85/100||4/5||4.5/5||Jun 2015||999|
|3.||Canon SX740||..||+||3.5/5||..||4/5||4/5||Jul 2018||399|
|4.||Canon SX430||..||..||..||..||3.5/5||3.5/5||Jan 2017||299|
|5.||Canon G7 X Mark II||4.5/5||+ +||..||81/100||4.5/5||4.5/5||Feb 2016||699|
|6.||Canon SX420||..||..||..||..||..||3/5||Jan 2016||299|
|7.||Canon SX540||..||..||..||..||..||..||Jan 2016||399|
|8.||Canon SX720||..||+||..||..||4/5||4.5/5||Feb 2016||379|
|9.||Canon SX710||..||+||..||..||4/5||3.5/5||Jan 2015||349|
|10.||Canon G7 X||4/5||+ +||..||77/100||4.5/5||4.5/5||Sep 2014||699|
|11.||Panasonic TS7||..||+||..||..||..||3.5/5||May 2018||449|
|12.||Panasonic ZS70||..||+ +||..||..||4/5||4/5||Apr 2017||449|
|13.||Panasonic FZ1000||4/5||+ +||..||82/100||4.5/5||4.5/5||Jun 2014||899|
|14.||Sony RX100 VII||4.5/5||..||4/5||..||4/5||5/5||Jul 2019||1,199|
|15.||Sony HX99||..||..||..||..||4/5||4.5/5||Aug 2018||449|
|16.||Sony RX100 V||4.5/5||+ +||..||83/100||4/5||4.5/5||Oct 2016||999|
|17.||Sony RX100 III||5/5||+ +||..||82/100||4.5/5||5/5||May 2014||799|
|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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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 are interested in seeing how other cameras pair up, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
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- Fujifilm X-E3 vs Sony RX100 IV
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- Panasonic GF7 vs Sony RX100 IV
- Panasonic L10 vs Sony RX100 IV
- Ricoh GR vs Sony RX100 IV
Specifications: Canon SX730 vs Sony RX100 IV
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 SX730||Sony RX100 IV|
|Camera Type||Fixed lens compact camera||Fixed lens compact camera|
|Camera Lens||24-960mm f/3.3-6.9||24-70mm f/1.8-2.8|
|Launch Date||April 2017||June 2015|
|Launch Price||USD 399||USD 999|
|Sensor Specs||Canon SX730||Sony RX100 IV|
|Sensor Format||1/2.3" Sensor||1" Sensor|
|Sensor Size||6.17 x 4.55 mm||13.2 x 8.8 mm|
|Sensor Area||28.0735 mm2||116.16 mm2|
|Sensor Diagonal||7.7 mm||15.9 mm|
|Sensor Resolution||20.2 Megapixels||20 Megapixels|
|Image Resolution||5184 x 3888 pixels||5472 x 3648 pixels|
|Pixel Pitch||1.18 μm||2.41 μm|
|Pixel Density||71.80 MP/cm2||17.18 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||4K/30p Video|
|ISO Setting||80 - 3,200 ISO||125 - 12,800 ISO|
|ISO Boost||no Enhancement||80 - 25,600 ISO|
|Image Processor||DIGIC 6||BIONZ X|
|DXO Sensor Quality (score)||..||70|
|DXO Color Depth (bits)||..||22.8|
|DXO Dynamic Range (EV)||..||12.6|
|DXO Low Light (ISO)||..||591|
|Screen Specs||Canon SX730||Sony RX100 IV|
|Viewfinder Type||no viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2359k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||922k dots||1228k dots|
|LCD Attachment||Tilting screen||Tilting screen|
|Shooting Specs||Canon SX730||Sony RX100 IV|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/3200s||1/2000s|
|Continuous Shooting||5.9 shutter flaps/s||16 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|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Canon SX730||Sony RX100 IV|
|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|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Canon SX730||Sony RX100 IV|
|Battery Life (CIPA)||250 shots per charge||280 shots per charge|
|In-Camera Charging||USB charging||USB charging|
110 x 64 x 40 mm
(4.3 x 2.5 x 1.6 in)
102 x 58 x 41 mm
(4.0 x 2.3 x 1.6 in)
|Camera Weight||300 g (10.6 oz)||298 g (10.5 oz)|
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