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Canon SX620 vs Sony RX100 III

The Canon PowerShot SX620 HS and the Sony Cyber-shot DSC-RX100 III are two digital cameras that were officially introduced, respectively, in May 2016 and May 2014. Both the SX620 and the RX100 III are fixed lens compact cameras that are based on a 1/2.3-inch (SX620) and an one-inch (RX100 III) 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.

Headline Specifications
Canon SX620 versus Sony RX100 III
Canon SX620 Sony RX100 III
Fixed lens compact camera Fixed lens compact camera
25-625mm f/3.2-6.6 24-70mm f/1.8-2.8
20.2 MP, 1/2.3" Sensor 20 MP, 1" Sensor
1080/30p Video 1080/60p Video
ISO 80-3,200 ISO 100-12,800 (80 - 25,600)
No viewfinder, LCD framing Electronic viewfinder (1440k dots)
3.0 LCD, 922k dots 3.0 LCD, 1229k dots
Fixed screen (not touch-sensitive) Tilting screen (not touch-sensitive)
2.5 shutter flaps per second 10 shutter flaps per second
295 shots per battery charge320 shots per battery charge
97 x 57 x 28 mm, 182 g 102 x 58 x 41 mm, 290 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX620 HS and the Sony Cyber-shot DSC-RX100 III? 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 physical size and weight of the Canon SX620 and the Sony RX100 III are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

The SX620 can be obtained in three different colors (black, silver, red), while the RX100 III is only available in black.

Size Canon SX620 vs Sony RX100 III
Compare SX620 versus RX100 III top
Comparison SX620 or RX100 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX100 III is notably larger (7 percent) than the Canon SX620. Moreover, the RX100 III is substantially heavier (59 percent) than the SX620. In this context, it is worth noting that neither the SX620 nor the RX100 III are weather-sealed.

Concerning battery life, the SX620 gets 295 shots out of its NB-13L battery, while the RX100 III can take 320 images on a single charge of its NP-BX1 power pack. The power pack in the RX100 III can be charged via the USB port, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras 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 SX620 97 mm 57 mm 28 mm 182 g 295 n May 2016 279 i
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799i
 
Canon G9 X Mark II 98 mm 58 mm 31 mm 206 g 235 n Jan 2017 529 i
 
Canon SX730 110 mm 64 mm 40 mm 300 g 250 n Apr 2017 399i
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699i
 
Canon SX420 104 mm 69 mm 85 mm 325 g 195 n Jan 2016 299 i
 
Canon SX540 120 mm 82 mm 92 mm 442 g 205 n Jan 2016 399 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 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 G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699i
 
Panasonic FZ1000 137 mm 99 mm 131 mm 831 g 360 n Jun 2014 899i
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999i
 
Sony RX100 II 102 mm 58 mm 38 mm 281 g 350 n Jun 2013 749i
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 obviously take relative prices into account. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The SX620 was launched at a markedly lower price (by 65 percent) than the RX100 III, 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 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon SX620 features a 1/2.3-inch sensor and the Sony RX100 III an one-inch sensor. The sensor area in the RX100 III 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 SX620 has a native 4:3 aspect ratio, while the one in the RX100 III offers a 3:2 aspect.

Technology-wise, both cameras are equipped with BSI-CMOS (Backside Illuminated Complementary Metal–Oxide–Semiconductor) sensors.

Canon SX620 and Sony RX100 III sensor measures

Despite having a smaller sensor, the Canon SX620 offers a higher resolution of 20.2 megapixels, compared with 20 MP of the Sony RX100 III. 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 III). However, it should be noted that the SX620 is a somewhat more recent model (by 1 year and 11 months) than the RX100 III, 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 SX620 HS has a native sensitivity range from ISO 80 to ISO 3200. The corresponding ISO settings for the Sony Cyber-shot DSC-RX100 III are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 80-25600.

SX620 versus RX100 III MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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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 SX620 1/2.3 20.2 5184 38881080/30p........
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
 
Canon G9 X Mark II 1-inch 20.0 5472 36481080/60p21.912.552265
 
Canon SX730 1/2.3 20.2 5184 38881080/60p........
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p........
 
Canon SX420 1/2.3 19.9 5152 3864720/25p........
 
Canon SX540 1/2.3 20.2 5184 38881080/60p........
 
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 SX410 1/2.3 19.9 5152 3864720/30p........
 
Canon SX610 1/2.3 20.2 5184 38881080/30p........
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
 
Panasonic FZ1000 1-inch 20.0 5472 36484K/30p22.111.751764
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367

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, but the RX100 III provides a faster frame rate than the SX620. It can shoot movie footage at 1080/60p, while the Canon is limited to 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the RX100 III has an electronic viewfinder (1440k dots), which can be very helpful when shooting in bright sunlight. In contrast, the SX620 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon SX620 and Sony RX100 III 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 SX620none n 3.0 922 fixed n 1/2000s 2.5 Y Y
 
Sony RX100 III1440 n 3.0 1229 tilting n 1/2000s 10.0 Y Y
 
Canon G9 X Mark IInone n 3.0 1040 fixed Y 1/2000s 8.2 Y Y
 
Canon SX730none n 3.0 922 tilting n 1/3200s 5.9 Y Y
 
Canon G7 X Mark IInone n 3.0 1040 tilting Y 1/2000s 8.0 Y Y
 
Canon SX420none n 3.0 230 fixed n 1/4000s 0.5 Y Y
 
Canon SX540none n 3.0 461 fixed n 1/2000s 5.9 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 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 G7 Xnone n 3.0 1040 tilting Y 1/2000s 6.5 Y Y
 
Panasonic FZ10002359 n 3.0 921 swivel n 1/4000s 12.0 Y Y
 
Sony RX100 IV2359 n 3.0 1228 tilting n 1/2000s 16.0 Y Y
 
Sony RX100 IIoptional n 3.0 1229 tilting n 1/2000s 10.0 Y Y
The RX100 III has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the SX620 does not have a selfie-screen.

Both the SX620 and the RX100 III have zoom lenses built in. The SX620 has a 25-625mm f/3.2-6.6 optic and the RX100 III offers a 24-70mm f/1.8-2.8 (focal lengths in full frame equivalent terms). Hence, the Sony provides a wider angle of view at the short end than the Canon, but less tele-photo reach at the long end. The RX100 III offers the faster maximum aperture.

The SX620 writes its imaging data to SDXC cards, while the RX100 III uses SDXC or Memory Stick PRO Duo cards. The RX100 III 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 SX620 HS and Sony Cyber-shot DSC-RX100 III 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 SX620-monomono--micro2.0YY-
 
Sony RX100 III-stereomono--micro2.0YY-
 
Canon G9 X Mark II-stereomono--micro2.0YYY
 
Canon SX730-stereomono--micro2.0YYY
 
Canon G7 X Mark II-stereomono--micro2.0YY-
 
Canon SX420-monomono---2.0YY-
 
Canon SX540-stereomono--mini2.0YY-
 
Canon SX720-stereomono--micro2.0YY-
 
Canon G5 XYstereomono--mini2.0YY-
 
Canon G9 X-stereomono--micro2.0YY-
 
Canon SX410-stereomono---2.0---
 
Canon SX610-----micro2.0YY-
 
Canon G7 X-stereomono--micro2.0YY-
 
Panasonic FZ1000YstereomonoY-micro2.0YY-
 
Sony RX100 IV-stereomono--micro2.0YY-
 
Sony RX100 IIYstereomono--micro2.0YY-

The SX620 is a recent model that features in the current product line-up of Canon. In contrast, the RX100 III has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the RX100 III was succeeded by the Sony RX100 IV. 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.

Review summary

So what is the bottom line? Is there a clear favorite between the Canon SX620 and the Sony RX100 III? Which camera is better? The listing below highlights the relative strengths of the two models.

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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.
  • Less heavy: Is lighter (by 108g or 37 percent) and hence easier to carry around.
  • More affordable: Was introduced into a lower priced category (65 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 1 year and 11 months after the RX100 III).

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Reasons to prefer the Sony Cyber-shot DSC-RX100 III:

  • 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 movie framerates (1080/60p versus 1080/30p).
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 922k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (10 vs 2.5 flaps/sec) to capture the decisive moment.
  • 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.
  • More heavily discounted: Has been on the market for longer (launched in May 2014).

If the count of individual advantages (bullet points above) is taken as a guide, the RX100 III is the clear winner of the contest (15 : 5 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.

SX620 05:15 RX100 III

How about other alternatives? Do the specifications of the Canon SX620 and the Sony RX100 III 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 SX620 or the RX100 III 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.

Expert reviews

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 (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 SX620........4/5 May 2016 279 i
 
Sony RX100 III+ +82/1004.5/54.5/55/5 May 2014 799i
 
Canon G9 X Mark II..75/1004.5/54.5/54.5/5 Jan 2017 529 i
 
Canon SX730+..4/5..4/5 Apr 2017 399i
 
Canon G7 X Mark II+ +81/1004.5/54/54.5/5 Feb 2016 699i
 
Canon SX420........3/5 Jan 2016 299 i
 
Canon SX540.......... Jan 2016 399 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 SX410o........ Feb 2015 279i
 
Canon SX610....4/5..4/5 Jan 2015 249i
 
Canon G7 X+ +77/1004.5/53.5/54.5/5 Sep 2014 699i
 
Panasonic FZ1000+ +82/1004.5/54.5/54.5/5 Jun 2014 899i
 
Sony RX100 IV+ +85/1004/54.5/54.5/5 Jun 2015 999i
 
Sony RX100 II+ +79/1004.5/55/54.5/5 Jun 2013 749i
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 comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Canon SX620:
Check Amazon price
Sony RX100 III:
Check Ebay offers

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 a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon SX620 vs Sony RX100 III

    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 SX620 Sony RX100 III
    Camera Type Fixed lens compact camera Fixed lens compact camera
    Camera Lens 25-625mm f/3.2-6.6 24-70mm f/1.8-2.8
    Launch Date May 2016 May 2014
    Launch Price USD 279 USD 799
    Sensor Specs Canon SX620 Sony RX100 III
    Sensor Technology BSI-CMOS BSI-CMOS
    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
    Crop Factor 5.6x 2.7x
    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 1080/30p Video 1080/60p Video
    ISO Setting 80 - 3,200 ISO 100 - 12,800 ISO
    ISO Boost no Enhancement 80 - 25,600 ISO
    Image Processor DIGIC 4+ BIONZ X
    DXO Sensor Quality (score) .. 67
    DXO Color Depth (bits) .. 22.4
    DXO Dynamic Range (EV) .. 12.3
    DXO Low Light (ISO) .. 495
    Screen Specs Canon SX620 Sony RX100 III
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.22x
    Viewfinder Resolution 1440k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 922k dots 1229k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Canon SX620 Sony RX100 III
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/2000s
    Continuous Shooting 2.5 shutter flaps/s 10 shutter flaps/s
    Fill Flash Build-in Flash Build-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 SX620 Sony RX100 III
    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 SX620 Sony RX100 III
    Battery Type NB-13L NP-BX1
    Battery Life (CIPA)295 shots per charge320 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 97 x 57 x 28 mm
    (3.8 x 2.2 x 1.1 in)
    102 x 58 x 41 mm
    (4.0 x 2.3 x 1.6 in)
    Camera Weight 182 g (6.4 oz) 290 g (10.2 oz)

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