Canon G7 X vs SX620
The Canon PowerShot G7 X and the Canon PowerShot SX620 HS are two digital cameras that were officially introduced, respectively, in September 2014 and May 2016. Both the G7X and the SX620 are fixed lens compact cameras that are based on an one-inch (G7X) and a 1/2.3-inch (SX620) sensor. The G7X has a resolution of 20 megapixels, whereas the SX620 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 G7 X and the Canon PowerShot SX620 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 G7 X and the Canon SX620 is provided in the side-by-side display below. 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 SX620 can be obtained in three different colors (black, silver, red), while the G7X 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 SX620 is notably smaller (11 percent) than the Canon G7 X. Moreover, the SX620 is substantially lighter (40 percent) than the G7X. In this context, it is worth noting that neither the G7X nor the SX620 are weather-sealed.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699||ebay.com|
|2.||Canon SX620||97 mm||57 mm||28 mm||182 g||295||n||May 2016||279||amazon.com|
|3.||Canon G7 X Mark III||105 mm||61 mm||41 mm||304 g||235||n||Jul 2019||749||amazon.com|
|4.||Canon SX430||104 mm||69 mm||85 mm||323 g||195||n||Jan 2017||299||amazon.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 G5 X||112 mm||76 mm||44 mm||353 g||210||n||Oct 2015||799||ebay.com|
|8.||Canon G9 X||98 mm||58 mm||31 mm||209 g||220||n||Oct 2015||529||ebay.com|
|9.||Canon M3||111 mm||68 mm||44 mm||366 g||250||n||Feb 2015||679||ebay.com|
|10.||Canon M10||108 mm||67 mm||35 mm||301 g||255||n||Oct 2015||499||ebay.com|
|11.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749||ebay.com|
|12.||Canon SX410||104 mm||69 mm||85 mm||325 g||185||n||Feb 2015||279||ebay.com|
|13.||Canon SX610||105 mm||61 mm||27 mm||191 g||270||n||Jan 2015||249||ebay.com|
|14.||Sony RX100 IV||102 mm||58 mm||41 mm||298 g||280||n||Jun 2015||999||ebay.com|
|15.||Sony RX100 III||102 mm||58 mm||41 mm||290 g||320||n||May 2014||799||ebay.com|
|16.||Sony RX100 II||102 mm||58 mm||38 mm||281 g||350||n||Jun 2013||749||ebay.com|
|Note: 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 SX620 was launched at a markedly lower price (by 60 percent) than the G7X, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon G7 X features an one-inch sensor and the Canon SX620 a 1/2.3-inch sensor. The sensor area in the SX620 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 G7X has a native 3:2 aspect ratio, while the one in the SX620 offers a 4:3 aspect.
In terms of chip-set technology, the G7X uses a more advanced image processing engine (DIGIC 6) than the SX620 (DIGIC 4+), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a smaller sensor, the SX620 offers a slightly higher resolution of 20.2 megapixels, compared with 20 MP of the G7X. 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 G7X). However, it should be noted that the SX620 is a somewhat more recent model (by 1 year and 7 months) than the G7X, 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 SX620 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The Canon PowerShot G7 X has a native sensitivity range from ISO 125 to ISO 12800. The corresponding ISO settings for the Canon PowerShot SX620 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.
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. 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 G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|3.||Canon G7 X Mark III||1-inch||20.0||5472||3648||4K/30p||22.2||12.4||583||65|
|5.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.8||11.9||260||62|
|7.||Canon G5 X||1-inch||20.0||5472||3648||1080/60p||21.8||11.9||227||61|
|8.||Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|14.||Sony RX100 IV||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|15.||Sony RX100 III||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67|
|16.||Sony RX100 II||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||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 have a sensor with sufficiently fast read-out times for moving pictures, but the G7X provides a higher frame rate than the SX620. It can shoot video footage at 1080/60p, while the SX620 is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The G7X and the SX620 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 G7 X and Canon SX620 along with similar information for a selection of comparators.
|1.||Canon G7 X||none||n||3.0 / 1040||tilting||Y||1/2000s||6.5/s||Y||Y|
|2.||Canon SX620||none||n||3.0 / 922||fixed||n||1/2000s||2.5/s||Y||Y|
|3.||Canon G7 X Mark III||none||n||3.0 / 1040||tilting||Y||1/2000s||30/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 G5 X||2360||n||3.0 / 1040||swivel||Y||1/2000s||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 M3||optional||n||3.0 / 1040||tilting||Y||1/4000s||4.2/s||Y||n|
|10.||Canon M10||none||n||3.0 / 1040||tilting||Y||1/4000s||4.6/s||Y||n|
|11.||Canon T6i||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|12.||Canon SX410||none||n||3.0 / 230||fixed||n||1/4000s||0.5/s||Y||Y|
|13.||Canon SX610||none||n||3.0 / 922||fixed||n||1/2000s||2.5/s||Y||Y|
|14.||Sony RX100 IV||2359||n||3.0 / 1228||tilting||n||1/2000s||16.0/s||Y||Y|
|15.||Sony RX100 III||1440||n||3.0 / 1229||tilting||n||1/2000s||10.0/s||Y||Y|
|16.||Sony RX100 II||optional||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.|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G7X has a touchscreen, while the SX620 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The G7X 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 SX620 does not have a selfie-screen.
The Canon G7 X has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
Both the G7X and the SX620 have zoom lenses built in. The G7X has a 24-100mm f/1.8-2.8 optic and the SX620 offers a 25-625mm f/3.2-6.6 (focal lengths in full frame equivalent terms). Hence, the G7X provides a wider angle of view at the short end than the SX620, but less tele-photo reach at the long end. The G7X offers the faster maximum aperture.
Concerning the storage of imaging data, both the G7X and the SX620 write their files to SDXC cards. The G7X supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the SX620 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 G7 X and Canon PowerShot SX620 HS and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon G7 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|2.||Canon SX620||-||mono / mono||-||-||micro||2.0||Y||Y||-|
|3.||Canon G7 X Mark III||-||stereo / mono||Y||-||micro||3.1||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 G5 X||Y||stereo / mono||-||-||mini||2.0||Y||Y||-|
|8.||Canon G9 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|9.||Canon M3||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|10.||Canon M10||-||stereo / mono||-||-||mini||2.0||Y||Y||-|
|11.||Canon T6i||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|12.||Canon SX410||-||stereo / mono||-||-||-||2.0||-||-||-|
|13.||Canon SX610||-||- / -||-||-||micro||2.0||Y||Y||-|
|14.||Sony RX100 IV||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|15.||Sony RX100 III||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|16.||Sony RX100 II||Y||stereo / mono||-||-||micro||2.0||Y||Y||-|
The SX620 is a recent model that features in the current product line-up of Canon. In contrast, the G7X has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the G7X was succeeded by the Canon G7 X Mark II. 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 G7 X and the Canon SX620? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon PowerShot G7 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 jpgs: Has a more modern image processing engine (DIGIC 6 vs DIGIC 4+).
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- 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.
- Faster burst: Shoots at higher frequency (6.5 vs 2.5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Better light gathering: Has a lens with a wider maximum aperture (f/1.8 vs f/3.2).
- Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
- 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 September 2014).
Arguments in favor of the Canon PowerShot SX620 HS:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
- More compact: Is smaller (97x57mm vs 103x60mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 122g or 40 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (295 versus 210) out of a single battery charge.
- More affordable: Was introduced into a lower priced category (60 percent cheaper at launch).
- More modern: Was introduced somewhat (1 year and 7 months) more recently.
If the count of individual advantages (bullet points above) is taken as a guide, the G7X is the clear winner of the match-up (17 : 7 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 G7 X and the Canon SX620 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Superzoom Camera listings 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 remains incomplete and does no justice, for example, to the way the G7X or the SX620 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 following table reports the overall ratings of the cameras as published by some of the major 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 G7 X||4/5||+ +||..||77/100||4.5/5||4.5/5||Sep 2014||699||ebay.com|
|2.||Canon SX620||..||..||..||..||..||4/5||May 2016||279||amazon.com|
|3.||Canon G7 X Mark III||..||+ +||4/5||81/100||4/5||..||Jul 2019||749||amazon.com|
|4.||Canon SX430||..||..||..||..||3.5/5||3.5/5||Jan 2017||299||amazon.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 G5 X||5/5||+ +||..||78/100||4.5/5||4.5/5||Oct 2015||799||ebay.com|
|8.||Canon G9 X||3.5/5||+ +||..||..||4.5/5||4.5/5||Oct 2015||529||ebay.com|
|9.||Canon M3||4/5||o||..||75/100||4.5/5||4/5||Feb 2015||679||ebay.com|
|10.||Canon M10||..||..||..||..||..||4/5||Oct 2015||499||ebay.com|
|11.||Canon T6i||5/5||..||..||75/100||4.5/5||4.5/5||Feb 2015||749||ebay.com|
|12.||Canon SX410||..||o||..||..||..||..||Feb 2015||279||ebay.com|
|13.||Canon SX610||..||..||..||..||4/5||4/5||Jan 2015||249||ebay.com|
|14.||Sony RX100 IV||4.5/5||+ +||..||85/100||4/5||4.5/5||Jun 2015||999||ebay.com|
|15.||Sony RX100 III||5/5||+ +||..||82/100||4.5/5||5/5||May 2014||799||ebay.com|
|16.||Sony RX100 II||5/5||+ +||..||79/100||4.5/5||4.5/5||Jun 2013||749||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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 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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Specifications: Canon G7 X vs Canon SX620
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 G7 X||Canon SX620|
|Camera Type||Fixed lens compact camera||Fixed lens compact camera|
|Camera Lens||24-100mm f/1.8-2.8||25-625mm f/3.2-6.6|
|Launch Date||September 2014||May 2016|
|Launch Price||USD 699||USD 279|
|Sensor Specs||Canon G7 X||Canon SX620|
|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||1080/30p Video|
|ISO Setting||125 - 12,800 ISO||80 - 3,200 ISO|
|Image Processor||DIGIC 6||DIGIC 4+|
|DXO Sensor Quality (score)||71||..|
|DXO Color Depth (bits)||23.0||..|
|DXO Dynamic Range (EV)||12.7||..|
|DXO Low Light (ISO)||556||..|
|Screen Specs||Canon G7 X||Canon SX620|
|Viewfinder Type||no viewfinder||no viewfinder|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||922k dots|
|LCD Attachment||Tilting screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon G7 X||Canon SX620|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||6.5 shutter flaps/s||2.5 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|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 G7 X||Canon SX620|
|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|
|Body Specs||Canon G7 X||Canon SX620|
|Battery Life (CIPA)||210 shots per charge||295 shots per charge|
103 x 60 x 40 mm
(4.1 x 2.4 x 1.6 in)
97 x 57 x 28 mm
(3.8 x 2.2 x 1.1 in)
|Camera Weight||304 g (10.7 oz)||182 g (6.4 oz)|
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