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Canon G7 X Mark III vs Sony RX100 VII

The Canon PowerShot G7 X Mark III and the Sony Cyber-shot DSC-RX100 VII are two digital cameras that were revealed to the public in July 2019. Both the G7X Mark III and the RX100 VII are fixed lens compact cameras that are equipped with an one-inch sensor. Both cameras offer a resolution of 20 megapixels.

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 III versus Sony RX100 VII
Canon G7 X Mark III Sony RX100 VII
Fixed lens compact camera Fixed lens compact camera
24-100mm f/1.8-2.8 24-200mm f/2.8-4.5
20 MP, 1" Sensor 20 MP, 1" Sensor
4K/30p Video 4K/30p Video
ISO 125-12,800 (125 - 25,600) ISO 125-12,800 (80 - 25,600)
No viewfinder, LCD framing Electronic viewfinder (2359k dots)
3.0 LCD, 1040k dots 3.0 LCD, 921k dots
Tilting touchscreen Tilting touchscreen
30 shutter flaps per second 90 shutter flaps per second
235 shots per battery charge260 shots per battery charge
105 x 61 x 41 mm, 304 g 102 x 58 x 43 mm, 302 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G7 X Mark III and the Sony Cyber-shot DSC-RX100 VII? 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

An illustration of the physical size and weight of the Canon G7 X Mark III and the Sony RX100 VII 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 width, height and depth dimensions are rounded to the nearest millimeter.

The G7X Mark III can be obtained in two different colors (black, silver), while the RX100 VII is only available in black.

Size Canon G7 X Mark III vs Sony RX100 VII
Compare G7X Mark III versus RX100 VII top
Comparison G7X Mark III or RX100 VII rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX100 VII is notably smaller (8 percent) than the Canon G7 X Mark III. Moreover, the RX100 VII is slightly lighter (1 percent) than the G7X Mark III. In this context, it is worth noting that neither the G7X Mark III nor the RX100 VII are weather-sealed.

Concerning battery life, the G7X Mark III gets 235 shots out of its NB-13L battery, while the RX100 VII can take 260 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 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 III 105 mm 61 mm 41 mm 304 g 235 n Jul 2019 749 i
 
Sony RX100 VII 102 mm 58 mm 43 mm 302 g 260 n Jul 2019 1,199 i
 
Canon G5 X Mark II 111 mm 61 mm 46 mm 340 g 230 n Jul 2019 899 i
 
Canon M50 116 mm 88 mm 59 mm 390 g 235 n Feb 2018 779 i
 
Canon SX740 110 mm 64 mm 40 mm 299 g 265 n Jul 2018 399 i
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699i
 
Canon G5 X 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799i
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699i
 
Fujifilm XF10 113 mm 64 mm 41 mm 279 g 330 n Jul 2018 499 i
 
Panasonic TZ200 111 mm 65 mm 45 mm 340 g 370 n Feb 2018 799 i
 
Sony ZV-1 105 mm 60 mm 44 mm 294 g 260 n May 2020 799 i
 
Sony RX100 VI 102 mm 58 mm 43 mm 301 g 240 n Jun 2018 1,199i
 
Sony RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 999 i
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999i
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799i
 
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 naturally be influenced heavily by the price. 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 G7X Mark III was launched at a markedly lower price (by 38 percent) than the RX100 VII, 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.

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.

Both cameras under consideration feature an one-inch sensor and have a format factor (sometimes also referred to as "crop factor") of 2.7. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of underlying technology, both cameras are build around BSI-CMOS sensors.

Canon G7 X Mark III and Sony RX100 VII sensor measures

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 20 megapixels. This similarity in sensor specs implies that both the G7X Mark III and the RX100 VII have the same pixel density, as well as the same pixel size. Moreover, the two cameras were released in close succession, so that their sensors are from the same technological generation.

The RX100 VII has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon PowerShot G7 X Mark III 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 Sony Cyber-shot DSC-RX100 VII are ISO 125 to ISO 12800, with the possibility to increase the ISO range to 80-25600.

G7X Mark III versus RX100 VII MP

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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-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 III 1-inch 20.0 5472 36484K/30p........
 
Sony RX100 VII 1-inch 20.0 5472 36484K/30p21.812.441863
 
Canon G5 X Mark II 1-inch 20.0 5472 36484K/30p........
 
Canon M50 APS-C 24.0 6000 40004K/24p........
 
Canon SX740 1/2.3 20.2 5184 38884K/30p........
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p........
 
Canon G5 X 1-inch 20.0 5472 36481080/60p........
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
 
Fujifilm XF10 APS-C 24.0 6000 40004K/15p........
 
Panasonic TZ200 1-inch 20.0 5472 36484K/30p........
 
Sony ZV-1 1-inch 20.0 5472 36484K/30p........
 
Sony RX100 VI 1-inch 20.0 5472 36484K/30p........
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (4K/30p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the RX100 VII has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the G7X Mark III relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon G7 X Mark III and Sony RX100 VII along with similar information for a selection of comparators.

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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 IIInone n 3.0 1040 tilting Y 1/2000s 30 Y Y
 
Sony RX100 VII2359 n 3.0 921 tilting Y 1/2000s 90.0 Y Y
 
Canon G5 X Mark II2360 n 3.0 1040 tilting Y 1/2000s 30 Y Y
 
Canon M502360 n 3.0 1040 swivel Y 1/4000s 10.0 Y n
 
Canon SX740none n 3.0 922 tilting n 1/3200s 10.0 Y Y
 
Canon G7 X Mark IInone n 3.0 1040 tilting Y 1/2000s 8.0 Y Y
 
Canon G5 X2360 n 3.0 1040 swivel Y 1/2000s 5.9 Y Y
 
Canon G7 Xnone n 3.0 1040 tilting Y 1/2000s 6.5 Y Y
 
Fujifilm XF10none n 3.0 1040 fixed Y 1/4000s 6.0 Y n
 
Panasonic TZ2002330 n 3.0 1240 fixed Y 1/2000s 10.0 Y Y
 
Sony ZV-1none n 3.0 922 swivel Y 1/2000s 24.0 n Y
 
Sony RX100 VI2359 n 3.0 1229 tilting Y 1/2000s 24.0 Y Y
 
Sony RX100 V2359 n 3.0 1229 tilting n 1/2000s 24.0 Y Y
 
Sony RX100 IV2359 n 3.0 1228 tilting n 1/2000s 16.0 Y Y
 
Sony RX100 III1440 n 3.0 1229 tilting n 1/2000s 10.0 Y Y
 
Sony RX100 IIoptional n 3.0 1229 tilting n 1/2000s 10.0 Y Y
Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

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, both cameras under consideration feature an 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 Canon G7 X Mark III and the Sony RX100 VII both have 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 III and the RX100 VII have zoom lenses built in. The G7X Mark III has a 24-100mm f/1.8-2.8 optic and the RX100 VII offers a 24-200mm f/2.8-4.5 (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 more tele-photo reach at the long end. The G7X Mark III offers the faster maximum aperture.

The G7X Mark III writes its imaging data to SDXC cards, while the RX100 VII uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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 III and Sony Cyber-shot DSC-RX100 VII 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 III-stereomonoY-micro3.1Y-Y
 
Sony RX100 VII-stereomonoY-micro2.0YYY
 
Canon G5 X Mark II-stereomono--micro3.1Y-Y
 
Canon M50YstereomonoY-micro2.0YYY
 
Canon SX740-stereomono--micro2.0Y-Y
 
Canon G7 X Mark II-stereomono--micro2.0YY-
 
Canon G5 XYstereomono--mini2.0YY-
 
Canon G7 X-stereomono--micro2.0YY-
 
Fujifilm XF10-stereomonoY-micro2.0Y-Y
 
Panasonic TZ200-stereomono--micro2.0Y-Y
 
Sony ZV-1YstereomonoY-micro2.0YYY
 
Sony RX100 VI-stereomono--micro2.0YYY
 
Sony RX100 V-stereomono--micro2.0YY-
 
Sony RX100 IV-stereomono--micro2.0YY-
 
Sony RX100 III-stereomono--micro2.0YY-
 
Sony RX100 IIYstereomono--micro2.0YY-

Both the G7X Mark III and the RX100 VII are recent models that are part of the current product line-up. The G7X Mark III replaced the earlier Canon G7X Mark II, while the RX100 VII followed on from the Sony RX100 VI. 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 how do things add up? Which of the two cameras – the Canon G7 X Mark III or the Sony RX100 VII – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Advantages of the Canon PowerShot G7 X Mark III:

  • More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
  • Better light gathering: Has a lens with a wider maximum aperture (f/1.8 vs f/2.8).
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).

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Arguments in favor of the Sony Cyber-shot DSC-RX100 VII:

  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • Faster burst: Shoots at higher frequency (90 vs 30 flaps/sec) to capture the decisive moment.
  • More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
  • Longer lasting: Gets more shots (260 versus 235) out of a single battery charge.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.

If the count of relative strengths (bullet points above) is taken as a measure, the RX100 VII emerges as the winner of the match-up (6 : 4 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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.

G7X Mark III 04:06 RX100 VII

How about other alternatives? Do the specifications of the Canon G7 X Mark III and the Sony RX100 VII place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera listing 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 Mark III or the RX100 VII 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 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 III+ +81/1004/5.... Jul 2019 749 i
 
Sony RX100 VII....4/5..5/5 Jul 2019 1,199 i
 
Canon G5 X Mark II+82/100....4/5 Jul 2019 899 i
 
Canon M50+79/100..4/53.5/5 Feb 2018 779 i
 
Canon SX740+..4/5..4/5 Jul 2018 399 i
 
Canon G7 X Mark II+ +81/1004.5/54/54.5/5 Feb 2016 699i
 
Canon G5 X+ +78/1004.5/54/54.5/5 Oct 2015 799i
 
Canon G7 X+ +77/1004.5/53.5/54.5/5 Sep 2014 699i
 
Fujifilm XF10..75/1004/5..4.5/5 Jul 2018 499 i
 
Panasonic TZ200+ +81/1004.5/5..4.5/5 Feb 2018 799 i
 
Sony ZV-1....4/5..4.5/5 May 2020 799 i
 
Sony RX100 VI+ +83/1004/5..4.5/5 Jun 2018 1,199i
 
Sony RX100 V+ +83/1004/55/54.5/5 Oct 2016 999 i
 
Sony RX100 IV+ +85/1004/54.5/54.5/5 Jun 2015 999i
 
Sony RX100 III+ +82/1004.5/54.5/55/5 May 2014 799i
 
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 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. 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 III:
Check Amazon price
Sony RX100 VII:
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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Canon G7 X Mark III vs Sony RX100 VII

    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 III Sony RX100 VII
    Camera Type Fixed lens compact camera Fixed lens compact camera
    Camera Lens 24-100mm f/1.8-2.8 24-200mm f/2.8-4.5
    Launch Date July 2019 July 2019
    Launch Price USD 749 USD 1,199
    Sensor Specs Canon G7 X Mark III Sony RX100 VII
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format 1" Sensor 1" Sensor
    Sensor Size 13.2 x 8.8 mm 13.2 x 8.8 mm
    Sensor Area 116.16 mm2 116.16 mm2
    Sensor Diagonal 15.9 mm 15.9 mm
    Crop Factor 2.7x 2.7x
    Sensor Resolution 20 Megapixels 20 Megapixels
    Image Resolution 5472 x 3648 pixels 5472 x 3648 pixels
    Pixel Pitch 2.41 μm 2.41 μm
    Pixel Density 17.18 MP/cm2 17.18 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 125 - 12,800 ISO 125 - 12,800 ISO
    ISO Boost 125 - 25,600 ISO 80 - 25,600 ISO
    Image Processor DIGIC 8 BIONZ X
    DXO Sensor Quality (score) .. 63
    DXO Color Depth (bits) .. 21.8
    DXO Dynamic Range (EV) .. 12.4
    DXO Low Light (ISO) .. 418
    Screen Specs Canon G7 X Mark III Sony RX100 VII
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.59x
    Viewfinder Resolution 2359k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 921k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Canon G7 X Mark III Sony RX100 VII
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/2000s
    Continuous Shooting 30 shutter flaps/s 90 shutter flaps/s
    Electronic Shutterup to 1/25600sup to 1/32000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    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 UHS-I UHS-I
    Connectivity Specs Canon G7 X Mark III Sony RX100 VII
    External Flash no Hotshoe no Hotshoe
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Canon G7 X Mark III Sony RX100 VII
    Battery Type NB-13L NP-BX1
    Battery Life (CIPA)235 shots per charge260 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 105 x 61 x 41 mm
    (4.1 x 2.4 x 1.6 in)
    102 x 58 x 43 mm
    (4.0 x 2.3 x 1.7 in)
    Camera Weight 304 g (10.7 oz) 302 g (10.7 oz)

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

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