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Canon G7 X Mark III Comparison Review

The Canon PowerShot G7 X Mark III is a fixed lens compact camera that was officially introduced in July 2019 and is equipped with an one-inch sensor. It offers a resolution of 20 megapixel.

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Is the Canon G7 X Mark III a good camera? The G7X Mark III has a Camera Elo of 2543. This rating puts the G7X Mark III among the top 10 percent of all travel zoom compact cameras. In terms of its sensor size category (one inch cameras), the G7X Mark III ranks among the top 20 percent. Based on its within category standings, the camera earns a 5-star performance rating.

Headline Specifications
Canon G7 X Mark III
Fixed lens compact camera
24-100mm f/1.8-2.8
20 MP, 1" Sensor
4K/30p Video
ISO 125-12800 (125-25600)
No viewfinder, LCD framing
3.0" LCD, 1040k dots
Tilting touchscreen
30 shutter flaps per second
235 shots per battery charge
105 x 61 x 41 mm, 304 g


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Read on to find out more about the camera's size, sensor, features, reception by expert reviewers, and how it compares to other digital cameras.

Body comparison with a credit card

An illustration of the physical dimensions of the Canon G7 X Mark III vis-à-vis a credit card is provided in the side-by-side display below. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

Canon G7 X Mark III vs credit card front
G7X Mark III versus credit card top view
G7X Mark III and credit card rear side

The table below summarizes the key physical specs of the Canon G7 X Mark III alongside a set of comparators. If you want to review a camera pair side-by-side, just select a right-side 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 comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon G7 X Mark III 105 mm 61 mm 41 mm 304 g 235 n Jul 2019 749 i i Canon G7 X Mark III
 
Canon G5 X Mark II« » 111 mm 61 mm 46 mm 340 g 230 n Jul 2019 899 i i Canon G5 X Mark II
 
Canon M50« » 116 mm 88 mm 59 mm 390 g 235 n Feb 2018 779 i i Canon M50
 
Canon SX740« » 110 mm 64 mm 40 mm 299 g 265 n Jul 2018 399 i i Canon SX740
 
Canon G7 X Mark II« » 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699- i Canon G7 X Mark II
 
Canon G5 X« » 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799- i Canon G5 X
 
Canon G7 X« » 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699- i Canon G7 X
 
Fujifilm XF10« » 113 mm 64 mm 41 mm 279 g 330 n Jul 2018 499 i i Fujifilm XF10
 
Panasonic FZ1000 II« » 136 mm 97 mm 131 mm 810 g 350 n Feb 2019 899 i i Panasonic FZ1000 II
 
Panasonic TZ200« » 111 mm 65 mm 45 mm 340 g 370 n Feb 2018 799 i i Panasonic TZ200
 
Sony RX100 VI« » 102 mm 58 mm 43 mm 301 g 240 n Jun 2018 1,199- i Sony RX100 VI
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The Canon G7 X Mark III was launched in the US market at a price of $749. 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.

Canon G7 X Mark III:
Check Amazon price

Sensor comparison with a 35mm slide

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 tend to be associated with larger, more expensive camera bodies and lenses.

The Canon G7 X Mark III features an one-inch sensor and has a format factor (sometimes also referred to as "crop factor") of 2.7. Within the spectrum of camera sensors, this places the Canon G7 X Mark III among the medium-sized sensor cameras that aim to strike a balance between image quality and portability.

Canon G7 X Mark III sensor measures

For most cameras, data on sensor performance has been reported by DXO Mark. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Canon G7 X Mark III 1-inch 20.0 5472 36484K/30p----Canon G7 X Mark III
 
Canon G5 X Mark II« » 1-inch 20.0 5472 36484K/30p----Canon G5 X Mark II
 
Canon M50« » APS-C 24.0 6000 40004K/24p----Canon M50
 
Canon SX740« » 1/2.3 20.2 5184 38884K/30p----Canon SX740
 
Canon G7 X Mark II« » 1-inch 20.0 5472 36481080/60p----Canon G7 X Mark II
 
Canon G5 X« » 1-inch 20.0 5472 36481080/60p----Canon G5 X
 
Canon G7 X« » 1-inch 20.0 5472 36481080/60p23.012.755671Canon G7 X
 
Fujifilm XF10« » APS-C 24.0 6000 40004K/15p----Fujifilm XF10
 
Panasonic FZ1000 II« » 1-inch 20.0 5472 36484K/30p----Panasonic FZ1000 II
 
Panasonic TZ200« » 1-inch 20.0 5472 36484K/30p----Panasonic TZ200
 
Sony RX100 VI« » 1-inch 20.0 5472 36484K/30p----Sony RX100 VI

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The G7X Mark III indeed provides movie recording capabilities. The highest resolution format that the G7X Mark III can use is 4K/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The adjacent tables list some of the other core features of the Canon G7 X Mark III along with similar information for a selection of comparators.

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
Camera
Model
 
Canon G7 X Mark III- n 3.0 1040 tilting Y 1/2000s 30 Y Y Canon G7 X Mark III
 
Canon G5 X Mark II« »2360 n 3.0 1040 tilting Y 1/2000s 30 Y Y Canon G5 X Mark II
 
Canon M50« »2360 n 3.0 1040 swivel Y 1/4000s 10.0 Y n Canon M50
 
Canon SX740« »- n 3.0 922 tilting n 1/3200s 10.0 Y Y Canon SX740
 
Canon G7 X Mark II« »- n 3.0 1040 tilting Y 1/2000s 8.0 Y Y Canon G7 X Mark II
 
Canon G5 X« »2360 n 3.0 1040 swivel Y 1/2000s 5.9 Y Y Canon G5 X
 
Canon G7 X« »- n 3.0 1040 tilting Y 1/2000s 6.5 Y Y Canon G7 X
 
Fujifilm XF10« »- n 3.0 1040 fixed Y 1/4000s 6.0 Y n Fujifilm XF10
 
Panasonic FZ1000 II« »2360 n 3.0 1240 swivel Y 1/4000s 12.0 Y Y Panasonic FZ1000 II
 
Panasonic TZ200« »2330 n 3.0 1240 fixed Y 1/2000s 10.0 Y Y Panasonic TZ200
 
Sony RX100 VI« »2359 n 3.0 1229 tilting Y 1/2000s 24.0 Y Y Sony RX100 VI

One convenient feature of the G7X Mark III is the presence of an on-board flash. While this built-in flash is not very powerful, it can at times be useful as a fill-in light to brighten deep shadow areas.

 

Connection 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, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon G7 X Mark III-stereomonoY-micro3.1Y-YCanon G7 X Mark III
 
Canon G5 X Mark II« »-stereomono--micro3.1Y-YCanon G5 X Mark II
 
Canon M50« »YstereomonoY-micro2.0YYYCanon M50
 
Canon SX740« »-stereomono--micro2.0YYYCanon SX740
 
Canon G7 X Mark II« »-stereomono--micro2.0YY-Canon G7 X Mark II
 
Canon G5 X« »Ystereomono--mini2.0YY-Canon G5 X
 
Canon G7 X« »-stereomono--micro2.0YY-Canon G7 X
 
Fujifilm XF10« »-stereomonoY-micro2.0Y-YFujifilm XF10
 
Panasonic FZ1000 II« »Ystereomono--micro2.0Y-YPanasonic FZ1000 II
 
Panasonic TZ200« »-stereomono--micro2.0Y-YPanasonic TZ200
 
Sony RX100 VI« »-stereomono--micro2.0YYYSony RX100 VI

It is notable that the G7X Mark III has a microphone port. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

 

The G7X Mark III has a zoom lens built in (8.8-36.8mm f/1.8-2.8), which, in full frame equivalent terms, provides a focal length range from 24 to 100mm. The camera is, hence, ready to shoot, while remaining more compact in size than an interchangeable lens camera with an optic that offers similar focal length and aperture specifications.

Expert reviews

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 G7X Mark III handle or 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 table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog).

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon G7 X Mark III+ +-4/5-- Jul 2019 749 i i Canon G7 X Mark III
 
Canon G5 X Mark II« »+82/100--4/5 Jul 2019 899 i i Canon G5 X Mark II
 
Canon M50« »+79/100-4/53.5/5 Feb 2018 779 i i Canon M50
 
Canon SX740« »+-4/5-4/5 Jul 2018 399 i i Canon SX740
 
Canon G7 X Mark II« »+ +81/1004.5/54/54.5/5 Feb 2016 699- i Canon G7 X Mark II
 
Canon G5 X« »+ +78/1004.5/54/54.5/5 Oct 2015 799- i Canon G5 X
 
Canon G7 X« »+ +77/1004.5/53.5/54.5/5 Sep 2014 699- i Canon G7 X
 
Fujifilm XF10« »-75/1004/5-4.5/5 Jul 2018 499 i i Fujifilm XF10
 
Panasonic FZ1000 II« »--4.5/5-4.5/5 Feb 2019 899 i i Panasonic FZ1000 II
 
Panasonic TZ200« »+ +81/1004.5/5-4.5/5 Feb 2018 799 i i Panasonic TZ200
 
Sony RX100 VI« »+ +83/1004/5-4.5/5 Jun 2018 1,199- i Sony RX100 VI
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. 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.

Canon G7 X Mark III FAQ

Below are some additional questions and answers concerning some particular features of the G7X Mark III.

What is the technology behind the imaging sensor in the G7X Mark III?

The camera features a BSI-CMOS (Backside Illuminated Complementary Metal–Oxide–Semiconductor) sensor.

Which image processing chip is used to convert the raw signal into an image file and perform noise reduction and image sharpening?

Canon equipped the G7X Mark III with the DIGIC 8 image processor.

What is the ISO sensitivity range of the G7X Mark III?

The camera has a native sensitivity range from ISO 125 to ISO 12800.

Does the camera have a selfie-friendly screen?

Yes, the LCD-screen of the G7X Mark III is flexible and can be turned to be front-facing for capturing selfies.

Is completely silent shooting possible with the Canon G7 X Mark III?

The camera has an electronic shutter option, so that it is indeed feasible to capture images without any shutter noise.

Do I need to purchase an external camera trigger to shoot time-lapse sequences?

No, the Canon PowerShot G7 X Mark III has an intervalometer built-in, so that low frequency shooting (for example, flower blooming, sunset, moon rise) can be undertaken without the need to purchase a separate external intervalometer and related software.

Is it difficult to use manual focus lenses with the Canon G7 X Mark III?

The G7X Mark III offers focus peaking as a manual focus aid. This feature works by placing a colored highlight on in-focus zones within the image.

Does the Canon G7 X Mark III feature an autofocus assist light?

Yes, the camera has a lamp built-in that can illuminate the subject and improve autofocus in low-light settings.

Does the Canon G7 X Mark III support the Ultra High Speed (UHS) bus interface for SD cards?

Yes, the camera can indeed use UHS-I cards (data transfer speed of up to 104 MB/s).

Which battery does the G7X Mark III use?

The camera gets its power from the NB-13L (here at amazon), which is a rechargeable Lithium-Ion power pack.

Camera to camera comparisons

In case you would like to check on the differences and similarities with other camera models, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications Summary
    Camera Model Canon G7 X Mark III
    Camera Type Fixed lens compact camera
    Camera Lens 24-100mm f/1.8-2.8
    Launch Date July 2019
    Launch Price USD 749
    Sensor Specs
    Sensor Technology BSI-CMOS
    Sensor Format 1" Sensor
    Sensor Size 13.2 x 8.8 mm
    Sensor Area 116.16 mm2
    Sensor Diagonal 15.9 mm
    Crop Factor 2.7x
    Sensor Resolution 20 Megapixels
    Image Resolution 5472 x 3648 pixels
    Pixel Pitch 2.41 μm
    Pixel Density 17.18 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability 4K/30p Video
    ISO Setting 125-12800 ISO
    ISO Boost 125-25600 ISO
    Image Processor DIGIC 8
    Screen Specs
    Viewfinder Type No viewfinder
    LCD Framing Live View
    Rear LCD Size 3.0 inch
    LCD Resolution 1040k dots
    LCD Attachment Tilting screen
    Touch Input Touchscreen
    Shooting Specs
    Autofocus System Contrast-detect AF
    Manual Focusing AidFocus Peaking
    Maximum Shutter Speed 1/2000s
    Continuous Shooting 30 shutter flaps/s
    Silent ShootingElectronic Shutter
    Time Lapse PhotographyIntervalometer Built-in
    Fill Flash Build-in Flash
    Storage Medium SDXC cards
    Second Storage Option Single card slot
    UHS card support UHS-I
    Connectivity Specs
    External Flash no Hotshoe
    USB Connector USB 3.1
    HDMI Port micro HDMI
    Microphone Port External MIC port
    Wifi Support Wifi built-in
    Bluetooth Support Bluetooth built-in
    Body Specs
    Battery Type NB-13L power pack
    Battery Life (CIPA)235 shots per charge
    In-Camera Charging USB charging
    Body Dimensions 105 x 61 x 41 mm
    (4.1 x 2.4 x 1.6 in)
    Camera Weight 304 g (10.7 oz)

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