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Canon G7 X Mark II vs SX620

The Canon PowerShot G7 X Mark II and the Canon PowerShot SX620 HS are two digital cameras that were officially introduced, respectively, in February 2016 and May 2016. Both the G7X Mark II and the SX620 are fixed lens compact cameras that are based on an one-inch (G7X Mark II) and a 1/2.3-inch (SX620) sensor. The G7X Mark II 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.

Headline Specifications
Canon G7 X Mark II versus Canon SX620
Canon G7 X Mark II Canon SX620
Fixed lens compact camera Fixed lens compact camera
24-100mm f/1.8-2.8 25-625mm f/3.2-6.6
20 MP, 1" Sensor 20.2 MP, 1/2.3" Sensor
1080/60p Video 1080/30p Video
ISO 125-12,800 (125 - 25,600) ISO 80-3,200
No viewfinder, LCD framing No viewfinder, LCD framing
3.0 LCD, 1040k dots 3.0 LCD, 922k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
8 shutter flaps per second 2.5 shutter flaps per second
265 shots per battery charge295 shots per battery charge
106 x 61 x 42 mm, 319 g 97 x 57 x 28 mm, 182 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G7 X Mark II 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.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon G7 X Mark II and the Canon SX620. 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 measures are rounded to the nearest millimeter.

The SX620 can be obtained in three different colors (black, silver, red), while the G7X Mark II is only available in black.

Size Canon G7 X Mark II vs Canon SX620
Compare G7X Mark II versus SX620 top
Comparison G7X Mark II or SX620 rear

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 (14 percent) than the Canon G7 X Mark II. Moreover, the SX620 is substantially lighter (43 percent) than the G7X Mark II. In this context, it is worth noting that neither the G7X Mark II nor the SX620 are weather-sealed.

The power pack in the G7X Mark II can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699i
 
Canon SX620 97 mm 57 mm 28 mm 182 g 295 n May 2016 279 i
 
Canon G7 X Mark III 105 mm 61 mm 41 mm 304 g 235 n Jul 2019 749 i
 
Canon G9 X Mark II 98 mm 58 mm 31 mm 206 g 235 n Jan 2017 529 i
 
Canon M100 108 mm 67 mm 35 mm 302 g 295 n Aug 2017 499i
 
Canon SX730 110 mm 64 mm 40 mm 300 g 250 n Apr 2017 399i
 
Canon SX420 104 mm 69 mm 85 mm 325 g 195 n Jan 2016 299 i
 
Canon SX720 110 mm 64 mm 36 mm 270 g 250 n Feb 2016 379i
 
Canon G5 X 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799i
 
Canon G9 X 98 mm 58 mm 31 mm 209 g 220 n Oct 2015 529i
 
Canon M3 111 mm 68 mm 44 mm 366 g 250 n Feb 2015 679i
 
Canon SX410 104 mm 69 mm 85 mm 325 g 185 n Feb 2015 279i
 
Canon SX610 105 mm 61 mm 27 mm 191 g 270 n Jan 2015 249i
 
Canon SX710 113 mm 66 mm 35 mm 269 g 230 n Jan 2015 349i
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

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 SX620 was launched at a markedly lower price (by 60 percent) than the G7X Mark II, 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.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon G7 X Mark II 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 Mark II 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 Mark II uses a more advanced image processing engine (DIGIC 7) than the SX620 (DIGIC 4+), with benefits for noise reduction, color accuracy, and processing speed.

Canon G7 X Mark II and Canon SX620 sensor measures

Despite having a smaller sensor, the SX620 offers a slightly higher resolution of 20.2 megapixels, compared with 20 MP of the G7X Mark II. 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 Mark II). It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. 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 Mark II 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 SX620 HS are ISO 80 to ISO 3200 (no boost).

G7X Mark II versus SX620 MP

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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p........
 
Canon SX620 1/2.3 20.2 5184 38881080/30p........
 
Canon G7 X Mark III 1-inch 20.0 5472 36484K/30p........
 
Canon G9 X Mark II 1-inch 20.0 5472 36481080/60p21.912.552265
 
Canon M100 APS-C 24.0 6000 40001080/60p23.512.9127278
 
Canon SX730 1/2.3 20.2 5184 38881080/60p........
 
Canon SX420 1/2.3 19.9 5152 3864720/25p........
 
Canon SX720 1/2.3 20.2 5184 38881080/60p........
 
Canon G5 X 1-inch 20.0 5472 36481080/60p........
 
Canon G9 X 1-inch 20.0 5472 36481080/60p21.512.349563
 
Canon M3 APS-C 24.0 6000 40001080/30p22.811.8116972
 
Canon SX410 1/2.3 19.9 5152 3864720/30p........
 
Canon SX610 1/2.3 20.2 5184 38881080/30p........
 
Canon SX710 1/2.3 20.2 5184 38881080/60p........
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the G7X Mark II provides a higher frame rate than the SX620. It can shoot video footage at 1080/60p, while the SX620 is limited to 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The G7X Mark II 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 table below summarizes some of the other core capabilities of the Canon G7 X Mark II and Canon SX620 in connection with corresponding information for a sample of similar cameras.

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Core Features
  Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
 
Canon G7 X Mark IInone n 3.0 1040 tilting Y 1/2000s 8.0 Y Y
 
Canon SX620none n 3.0 922 fixed n 1/2000s 2.5 Y Y
 
Canon G7 X Mark IIInone n 3.0 1040 tilting Y 1/2000s 30 Y Y
 
Canon G9 X Mark IInone n 3.0 1040 fixed Y 1/2000s 8.2 Y Y
 
Canon M100none n 3.0 1040 tilting Y 1/4000s 6.1 Y n
 
Canon SX730none n 3.0 922 tilting n 1/3200s 5.9 Y Y
 
Canon SX420none n 3.0 230 fixed n 1/4000s 0.5 Y Y
 
Canon SX720none n 3.0 922 fixed n 1/3200s 5.9 Y Y
 
Canon G5 X2360 n 3.0 1040 swivel Y 1/2000s 5.9 Y Y
 
Canon G9 Xnone n 3.0 1040 fixed Y 1/2000s 6.0 Y Y
 
Canon M3optional n 3.0 1040 tilting Y 1/4000s 4.2 Y n
 
Canon SX410none n 3.0 230 fixed n 1/4000s 0.5 Y Y
 
Canon SX610none n 3.0 922 fixed n 1/2000s 2.5 Y Y
 
Canon SX710none n 3.0 922 fixed n 1/3200s 6.0 Y Y
 
Canon G7 Xnone n 3.0 1040 tilting Y 1/2000s 6.5 Y Y

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G7X Mark II 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 Mark II 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 Mark II 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 Mark II and the SX620 have zoom lenses built in. The G7X Mark II 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 Mark II provides a wider angle of view at the short end than the SX620, but less tele-photo reach at the long end. The G7X Mark II offers the faster maximum aperture.

Concerning the storage of imaging data, both the G7X Mark II and the SX620 write their files to SDXC cards. The G7X Mark II 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.

Connectivity comparison

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 Mark II and Canon PowerShot SX620 HS and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
 
Canon G7 X Mark II-stereomono--micro2.0YY-
 
Canon SX620-monomono--micro2.0YY-
 
Canon G7 X Mark III-stereomonoY-micro3.1Y-Y
 
Canon G9 X Mark II-stereomono--micro2.0YYY
 
Canon M100-stereomono--micro2.0YYY
 
Canon SX730-stereomono--micro2.0YYY
 
Canon SX420-monomono---2.0YY-
 
Canon SX720-stereomono--micro2.0YY-
 
Canon G5 XYstereomono--mini2.0YY-
 
Canon G9 X-stereomono--micro2.0YY-
 
Canon M3YstereomonoY-mini2.0YY-
 
Canon SX410-stereomono---2.0---
 
Canon SX610-----micro2.0YY-
 
Canon SX710-stereomono--micro2.0YY-
 
Canon G7 X-stereomono--micro2.0YY-

The SX620 is a recent model that features in the current product line-up of Canon. In contrast, the G7X Mark II has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the G7X Mark II was succeeded by the Canon G7 X Mark III. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.

Review summary

So how do things add up? Is the Canon G7 X Mark II better than the Canon SX620 or vice versa? Below is a summary of the relative strengths of each of the two contestants.


Reasons to prefer the Canon PowerShot G7 X Mark II:

  • 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 7 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 (8 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.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.


Advantages 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 106x61mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 137g or 43 percent) and is thus easier to take along.
  • Longer lasting: Gets more shots (295 versus 265) out of a single battery charge.
  • More affordable: Was introduced into a lower priced category (60 percent cheaper at launch).

If the count of individual advantages (bullet points above) is taken as a guide, the G7X Mark II is the clear winner of the match-up (16 : 6 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G7X Mark II 16:06 SX620

How about other alternatives? Do the specifications of the Canon G7 X Mark II 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 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 G7X Mark II and the SX620 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.

Expert reviews

This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Canon G7 X Mark II+ +81/1004.5/54/54.5/5 Feb 2016 699i
 
Canon SX620........4/5 May 2016 279 i
 
Canon G7 X Mark III+ +81/1004/5.... Jul 2019 749 i
 
Canon G9 X Mark II..75/1004.5/54.5/54.5/5 Jan 2017 529 i
 
Canon M100+..4/5..3.5/5 Aug 2017 499i
 
Canon SX730+..4/5..4/5 Apr 2017 399i
 
Canon SX420........3/5 Jan 2016 299 i
 
Canon SX720+..4/5..4.5/5 Feb 2016 379i
 
Canon G5 X+ +78/1004.5/54/54.5/5 Oct 2015 799i
 
Canon G9 X+ +..4.5/54/54.5/5 Oct 2015 529i
 
Canon M3o75/1004.5/54.5/54/5 Feb 2015 679i
 
Canon SX410o........ Feb 2015 279i
 
Canon SX610....4/5..4/5 Jan 2015 249i
 
Canon SX710+..4/5..3.5/5 Jan 2015 349i
 
Canon G7 X+ +77/1004.5/53.5/54.5/5 Sep 2014 699i
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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Canon G7 X Mark II:
Check Ebay offers
Canon SX620:
Check Amazon price

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

~

    Specifications: Canon G7 X Mark II 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 Specifications
    Camera Model Canon G7 X Mark II 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 February 2016 May 2016
    Launch Price USD 699 USD 279
    Sensor Specs Canon G7 X Mark II Canon SX620
    Sensor Technology BSI-CMOS BSI-CMOS
    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
    Crop Factor 2.7x 5.6x
    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
    ISO Boost 125 - 25,600 ISO no Enhancement
    Image Processor DIGIC 7 DIGIC 4+
    Screen Specs Canon G7 X Mark II Canon SX620
    Viewfinder Type no viewfinder no viewfinder
    Viewfinder Magnification
    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 Mark II Canon SX620
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 8 shutter flaps/s 2.5 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Build-in Flash Build-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 Mark II 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 Mark II Canon SX620
    Battery Type NB-13L NB-13L
    Battery Life (CIPA)265 shots per charge295 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 106 x 61 x 42 mm
    (4.2 x 2.4 x 1.7 in)
    97 x 57 x 28 mm
    (3.8 x 2.2 x 1.1 in)
    Camera Weight 319 g (11.3 oz) 182 g (6.4 oz)

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