Canon SX420 vs Sony RX0
The Canon PowerShot SX420 IS and the Sony Cyber-shot DSC-RX0 are two digital cameras that were announced, respectively, in January 2016 and August 2017. Both the SX420 and the RX0 are fixed lens compact cameras that are based on a 1/2.3-inch (SX420) and an one-inch (RX0) sensor. The Canon has a resolution of 19.9 megapixels, whereas the Sony provides 15.4 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 SX420 IS and the Sony Cyber-shot DSC-RX0? 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.
The side-by-side display below illustrates the physical size and weight of the Canon SX420 and the Sony RX0. 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.
The SX420 can be obtained in two different colors (black, red), while the RX0 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 RX0 is considerably smaller (66 percent) than the Canon SX420. Moreover, the RX0 is substantially lighter (66 percent) than the SX420. It is noteworthy in this context that the RX0 is splash and dust-proof, while the SX420 does not feature any corresponding weather-sealing. More than that, the RX0 is water-proof up to 10m and can, thus, be used for underwater photography.
The power pack in the RX0 can be charged via the USB port, 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. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|Canon SX420||4.1 in||2.7 in||3.3 in||11.5 oz||195||n||Jan 2016||299|
|Sony RX0||2.3 in||1.6 in||1.2 in||3.9 oz||240||Y||Aug 2017||699|
|Canon SX740||4.3 in||2.5 in||1.6 in||10.5 oz||265||n||Jul 2018||399|
|Canon SX730||4.3 in||2.5 in||1.6 in||10.6 oz||250||n||Apr 2017||399|
|Canon G7 X Mark II||4.2 in||2.4 in||1.7 in||11.3 oz||265||n||Feb 2016||699|
|Canon SX620||3.8 in||2.2 in||1.1 in||6.4 oz||295||n||May 2016||279|
|Canon SX720||4.3 in||2.5 in||1.4 in||9.5 oz||250||n||Feb 2016||379|
|Canon G5 X||4.4 in||3.0 in||1.7 in||12.5 oz||210||n||Oct 2015||799|
|Canon SX410||4.1 in||2.7 in||3.3 in||11.5 oz||185||n||Feb 2015||279|
|Canon SX610||4.1 in||2.4 in||1.1 in||6.7 oz||270||n||Jan 2015||249|
|Canon SX710||4.4 in||2.6 in||1.4 in||9.5 oz||230||n||Jan 2015||349|
|Panasonic ZS70||4.4 in||2.6 in||1.6 in||11.4 oz||380||n||Apr 2017||449|
|Sony RX0 II||2.3 in||1.6 in||1.4 in||4.7 oz||240||Y||Mar 2019||699|
|Sony RX10 IV||5.2 in||3.7 in||5.7 in||38.6 oz||400||Y||Sep 2017||1,699|
|Sony RX10 III||5.2 in||3.7 in||5.0 in||37.1 oz||420||Y||Mar 2016||1,499|
|Sony RX10 II||5.1 in||3.5 in||4.0 in||28.7 oz||400||Y||Jun 2015||1,299|
|Sony RX10||5.1 in||3.5 in||4.0 in||28.7 oz||420||Y||Oct 2013||1,299|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. 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 SX420 was launched at a markedly lower price (by 57 percent) than the RX0, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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. 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.
Of the two cameras under consideration, the Canon SX420 features a 1/2.3-inch sensor and the Sony RX0 an one-inch sensor. The sensor area in the RX0 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 SX420 has a native 4:3 aspect ratio, while the one in the RX0 offers a 3:2 aspect.
Despite having a smaller sensor, the Canon SX420 offers a higher resolution of 19.9 megapixels, compared with 15.4 MP of the Sony RX0. 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 1.19μm versus 2.74μm for the RX0). Moreover, it should be noted that the RX0 is a somewhat more recent model (by 1 year and 7 months) than the SX420, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the SX420 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Canon SX420 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX420 for good quality output (200 dots per inch) amounts to 25.8 x 19.3 inches or 65.4 x 49.1 cm, for very good quality (250 dpi) 20.6 x 15.5 inches or 52.3 x 39.3 cm, and for excellent quality (300 dpi) 17.2 x 12.9 inches or 43.6 x 32.7 cm. The corresponding values for the Sony RX0 are 24 x 16 inches or 61 x 40.6 cm for good quality, 19.2 x 12.8 inches or 48.8 x 32.5 cm for very good quality, and 16 x 10.7 inches or 40.6 x 27.1 cm for excellent quality prints.
The Canon PowerShot SX420 IS has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Sony Cyber-shot DSC-RX0 are ISO 125 to ISO 12800 (no boost).
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||..||..||..||..|
|Canon G5 X||1-inch||20.0||5472||3648||1080/60p||..||..||..||..|
|Sony RX0 II||1-inch||15.4||4800||3200||4K/30p||..||..||..||..|
|Sony RX10 IV||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|Sony RX10 III||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
|Sony RX10 II||1-inch||20.0||5472||3648||4K/30p||23.0||12.6||531||70|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the RX0 provides a better video resolution than the SX420. It can shoot movie footage at 1080/60p, while the Canon is limited to 720/25p.
Apart from body and sensor, cameras can and do differ across a range of features. The SX420 and the RX0 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 adjacent table lists some of the other core features of the Canon SX420 and Sony RX0 along with similar information for a selection of comparators.
|Canon G7 X Mark II||none||n||3.0||1040||tilting||Y||1/2000s||8.0||Y||Y|
|Canon G5 X||2360||n||3.0||1040||swivel||Y||1/2000s||5.9||Y||Y|
|Sony RX0 II||none||n||1.5||230||tilting||n||..||5.5||n||n|
|Sony RX10 IV||2359||Y||3.0||1440||tilting||Y||1/2000s||24.0||Y||Y|
|Sony RX10 III||2359||Y||3.0||1229||tilting||n||1/2000s||14.0||Y||Y|
|Sony RX10 II||2359||Y||3.0||1229||tilting||n||1/3200s||14.0||Y||Y|
One difference between the cameras concerns the presence of an on-board flash. The SX420 has one, while the RX0 does not. While the built-in flash of the SX420 is not very powerful, it can at times be useful as a fill-in light.
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 RX0 only has 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).
The SX420 is equipped with a zoom lens, while the RX0 comes with a built-in prime. The SX420 has a 24-1008mm f/3.5-6.6 optic and the RX0 offers a 24mm f/4.0 (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 SX420 offers the faster maximum aperture.
The SX420 writes its imaging data to SDXC cards, while the RX0 uses micro SDXC or Memory Stick Micro cards. The RX0 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the SX420 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 SX420 IS and Sony Cyber-shot DSC-RX0 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|Canon G7 X Mark II||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Canon G5 X||Y||stereo||mono||-||-||mini||2.0||Y||Y||-|
|Sony RX0 II||-||stereo||mono||Y||-||micro||2.0||Y||-||Y|
|Sony RX10 IV||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|Sony RX10 III||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|Sony RX10 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the RX0 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The SX420 does not feature such a mic input.
The SX420 is a recent model that features in the current product line-up of Canon. In contrast, the RX0 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the RX0 was succeeded by the Sony RX0 II. 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? Which of the two cameras – the Canon SX420 or the Sony RX0 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Canon PowerShot SX420 IS:
- More detail: Offers more megapixels (19.9 vs 15.4MP) with a 12% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Larger screen: Has a bigger rear LCD (3.0" vs 1.5") for image review and settings control.
- Better light gathering: Has a lens with a wider maximum aperture (f/3.5 vs f/4.0).
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More affordable: Was introduced into a lower priced category (57 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in January 2016).
Advantages of the Sony Cyber-shot DSC-RX0:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better video: Provides higher definition movie capture (1080/60p vs 720/25p).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Faster burst: Shoots at higher frequency (5.5 vs 0.5 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (59x41mm vs 104x69mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 215g or 66 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (240 versus 195) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 10m).
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Was introduced somewhat (1 year and 7 months) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the RX0 is the clear winner of the contest (18 : 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 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 SX420 and the Sony RX0 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best Prime Lens Compact Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the SX420 and the RX0 in practical situations. 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 following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Canon SX420||..||..||..||..||3/5||Jan 2016||299|
|Sony RX0||..||..||3.5/5||..||4/5||Aug 2017||699|
|Canon SX740||+||..||4/5||..||4/5||Jul 2018||399|
|Canon SX730||+||..||4/5||..||4/5||Apr 2017||399|
|Canon G7 X Mark II||+ +||81/100||4.5/5||4/5||4.5/5||Feb 2016||699|
|Canon SX620||..||..||..||..||4/5||May 2016||279|
|Canon SX720||+||..||4/5||..||4.5/5||Feb 2016||379|
|Canon G5 X||+ +||78/100||4.5/5||4/5||4.5/5||Oct 2015||799|
|Canon SX410||o||..||..||..||..||Feb 2015||279|
|Canon SX610||..||..||4/5||..||4/5||Jan 2015||249|
|Canon SX710||+||..||4/5||..||3.5/5||Jan 2015||349|
|Panasonic ZS70||+ +||..||4/5||..||4/5||Apr 2017||449|
|Sony RX0 II||..||..||3.5/5||..||4/5||Mar 2019||699|
|Sony RX10 IV||+||84/100||4.5/5||..||5/5||Sep 2017||1,699|
|Sony RX10 III||+||84/100||4.5/5||4.5/5||4.5/5||Mar 2016||1,499|
|Sony RX10 II||+ +||82/100||4.5/5||4.5/5||4/5||Jun 2015||1,299|
|Sony RX10||+||80/100||4.5/5||4.5/5||4.5/5||Oct 2013||1,299|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted 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, please note that some of the review sites have changed their methodology and reporting over time.
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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Canon SX420 vs Sony RX0
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 SX420||Sony RX0|
|Camera Type||Fixed lens compact camera||Fixed lens compact camera|
|Camera Lens||24-1008mm f/3.5-6.6||24mm f/4.0|
|Launch Date||January 2016||August 2017|
|Launch Price||USD 299||USD 699|
|Sensor Specs||Canon SX420||Sony RX0|
|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||19.9 Megapixels||15.4 Megapixels|
|Image Resolution||5152 x 3864 pixels||4800 x 3200 pixels|
|Pixel Pitch||1.19 μm||2.74 μm|
|Pixel Density||70.91 MP/cm2||13.22 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||720/25p Video||1080/60p Video|
|ISO Setting||100 - 1,600 ISO||125 - 12,800 ISO|
|Image Processor||DIGIC 4+||BIONZ X|
|DXO Sensor Quality (score)||..||68|
|DXO Color Depth (bits)||..||22.4|
|DXO Dynamic Range (EV)||..||12.4|
|DXO Low Light (ISO)||..||548|
|Screen Specs||Canon SX420||Sony RX0|
|Viewfinder Type||no viewfinder||no viewfinder|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||1.5inch|
|LCD Resolution||230k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon SX420||Sony RX0|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||..|
|Continuous Shooting||0.5 shutter flaps/s||5.5 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/32000s|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||mMS or mSDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Canon SX420||Sony RX0|
|External Flash||no Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||no NFC|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon SX420||Sony RX0|
|Environmental Sealing||not weather sealed||Waterproof body (10m)|
|Battery Life (CIPA)||195 shots per charge||240 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
104 x 69 x 85 mm
(4.1 x 2.7 x 3.3 in)
59 x 41 x 30 mm
(2.3 x 1.6 x 1.2 in)
|Camera Weight||325 g (11.5 oz)||110 g (3.9 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.