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Canon G7 X Mark III vs Sony A7

The Canon PowerShot G7 X Mark III and the Sony Alpha A7 are two digital cameras that were announced, respectively, in July 2019 and October 2013. The G7X Mark III is a fixed lens compact, while the A7 is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (G7X Mark III) and a full frame (A7) sensor. The Canon has a resolution of 20 megapixels, whereas the Sony provides 24 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 III   Sony A7
Canon G7 X Mark III Sony A7
Fixed lens compact camera Mirrorless system camera
24-100mm f/1.8-2.8 Sony E mount lenses
20 MP, 1" Sensor 24 MP, Full Frame Sensor
4K/30p Video 1080/60p Video
ISO 125-12800 (125-25600) ISO 100-25600 (50-51200)
No viewfinder, LCD framing Electronic viewfinder (2400k dots)
3.0" LCD, 1040k dots 3.0" LCD, 1230k dots
Tilting touchscreen Tilting screen (not touch-sensitive)
30 shutter flaps per second 5 shutter flaps per second
Not weather sealedWeathersealed body
235 shots per battery charge340 shots per battery charge
105 x 61 x 41 mm, 304 g 127 x 94 x 48 mm, 474 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 Alpha A7? 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 III and the Sony A7. 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 G7X Mark III can be obtained in two different colors (black, silver), while the A7 is only available in black.

Size Canon G7 X Mark III vs Sony A7
Compare G7X Mark III versus A7 top
Comparison G7X Mark III or A7 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 is considerably larger (86 percent) than the Canon G7 X Mark III. It is noteworthy in this context that the A7 is splash and dust-proof, while the G7X Mark III does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X Mark III has a lens built in, whereas the A7 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A7 and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the G7X Mark III gets 235 shots out of its NB-13L battery, while the A7 can take 340 images on a single charge of its NP-FW50 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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» 4.1 in 2.4 in 1.6 in 10.7 oz 235 n Jul 2019 749 i i Canon G7 X Mark III
 
Sony A7« 5.0 in 3.7 in 1.9 in 16.7 oz 340 Y Oct 2013 1,699- i Sony A7
 
Canon G5 X Mark II« » 4.4 in 2.4 in 1.8 in 12.0 oz 230 n Jul 2019 899 i i Canon G5 X Mark II
 
Canon SX740« » 4.3 in 2.5 in 1.6 in 10.5 oz 265 n Jul 2018 399 i i Canon SX740
 
Canon G7 X Mark II« » 4.2 in 2.4 in 1.7 in 11.3 oz 265 n Feb 2016 699- i Canon G7 X Mark II
 
Canon G5 X« » 4.4 in 3.0 in 1.7 in 12.5 oz 210 n Oct 2015 799- i Canon G5 X
 
Canon G7 X« » 4.1 in 2.4 in 1.6 in 10.7 oz 210 n Sep 2014 699- i Canon G7 X
 
Leica C-LUX« » 4.4 in 2.6 in 1.8 in 12.0 oz 370 n Jun 2018 1,049 i i Leica C-LUX
 
Panasonic FZ1000 II« » 5.4 in 3.8 in 5.2 in 28.6 oz 350 n Feb 2019 899 i i Panasonic FZ1000 II
 
Panasonic ZS200« » 4.4 in 2.6 in 1.8 in 12.0 oz 370 n Feb 2018 799 i i Panasonic ZS200
 
Sony RX100 VII« » 4.0 in 2.3 in 1.7 in 10.7 oz 260 n Jul 2019 1,199 i i Sony RX100 VII
 
Sony RX100 VI« » 4.0 in 2.3 in 1.7 in 10.6 oz 240 n Jun 2018 1,199- i Sony RX100 VI
 
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999- i Sony A7 II
 
Sony A7S« » 5.0 in 3.7 in 1.9 in 17.2 oz 380 Y Apr 2014 2,499- i Sony A7S
 
Sony A7R« » 5.0 in 3.7 in 1.9 in 16.4 oz 340 Y Oct 2013 2,299- i Sony A7R
 
Sony RX1R« » 4.4 in 2.6 in 2.8 in 17.0 oz 270 n Jun 2013 2,799- i Sony RX1R
 
Sony RX1« » 4.4 in 2.6 in 2.8 in 17.0 oz 270 n Sep 2012 2,799- i Sony RX1
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G7X Mark III was launched at a lower price than the A7, despite having a lens built in. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 imaging sensor is a crucial determinant of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon G7 X Mark III features an one-inch sensor and the Sony A7 a full frame sensor. The sensor area in the A7 is 638 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon G7 X Mark III and Sony A7 sensor measures

With 24MP, the A7 offers a higher resolution than the G7X Mark III (20MP), but the A7 nevertheless has larger individual pixels (pixel pitch of 5.97μm versus 2.41μm for the G7X Mark III) due to its larger sensor. However, the G7X Mark III is a much more recent model (by 5 years and 8 months) than the A7, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A7 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Canon G7 X Mark III are 27.4 x 18.2 inch or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inch or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inch or 46.3 x 30.9 cm for excellent quality prints.

The A7 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 Alpha A7 are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.

G7X Mark III versus A7 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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
 
Sony A7« Full Frame 24.0 6000 40001080/60p24.814.2224890Sony A7
 
Canon G5 X Mark II« » 1-inch 20.0 5472 36484K/30p----Canon G5 X Mark II
 
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
 
Leica C-LUX« » 1-inch 20.0 5472 36484K/30p----Leica C-LUX
 
Panasonic FZ1000 II« » 1-inch 20.0 5472 36484K/30p----Panasonic FZ1000 II
 
Panasonic ZS200« » 1-inch 20.0 5472 36484K/30p----Panasonic ZS200
 
Sony RX100 VII« » 1-inch 20.0 5472 36484K/30p----Sony RX100 VII
 
Sony RX100 VI« » 1-inch 20.0 5472 36484K/30p----Sony RX100 VI
 
Sony A7 II« » Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
 
Sony A7S« » Full Frame 12.0 4240 28321080/60p23.913.2370287Sony A7S
 
Sony A7R« » Full Frame 36.2 7360 49121080/60p25.614.1274695Sony A7R
 
Sony RX1R« » Full Frame 24.0 6000 40001080/60p25.013.6253791Sony RX1R
 
Sony RX1« » Full Frame 24.0 6000 40001080/60p25.114.3253493Sony RX1

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the G7X Mark III provides a higher video resolution than the A7. It can shoot video footage at 4K/30p, while the Sony is limited to 1080/60p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7 has an electronic viewfinder (2400k 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 table below summarizes some of the other core capabilities of the Canon G7 X Mark III and Sony A7 in connection with corresponding information for a sample of similar cameras.

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
 
Sony A7«2400 n 3.0 1230 tilting n 1/8000s 5.0 n n Sony A7
 
Canon G5 X Mark II« »2360 n 3.0 1040 tilting Y 1/2000s 30 Y Y Canon G5 X Mark II
 
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
 
Leica C-LUX« »2330 n 3.0 1240 fixed Y 1/2000s 10.0 Y Y Leica C-LUX
 
Panasonic FZ1000 II« »2360 n 3.0 1240 swivel Y 1/4000s 12.0 Y Y Panasonic FZ1000 II
 
Panasonic ZS200« »2330 n 3.0 1240 fixed Y 1/2000s 10.0 Y Y Panasonic ZS200
 
Sony RX100 VII« »2359 n 3.0 921 tilting Y 1/2000s 90.0 Y Y Sony RX100 VII
 
Sony RX100 VI« »2359 n 3.0 1229 tilting Y 1/2000s 24.0 Y Y Sony RX100 VI
 
Sony A7 II« »2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y Sony A7 II
 
Sony A7S« »2400 n 3.0 921 tilting n 1/8000s 5.0 n n Sony A7S
 
Sony A7R« »2400 n 3.0 1230 tilting n 1/8000s 4.0 n n Sony A7R
 
Sony RX1R« »- n 3.0 1229 fixed n 1/4000s 5.0 Y n Sony RX1R
 
Sony RX1« »- n 3.0 1229 fixed n 1/4000s 5.0 Y n Sony RX1

One difference between the cameras concerns the presence of an on-board flash. The G7X Mark III has one, while the A7 does not. While the built-in flash of the G7X Mark III is not very powerful, it can at times be useful as a fill-in light.

The G7X Mark III 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 A7 does not have a selfie-screen.

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, the G7X Mark III is one of those camera that have an additional 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 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.

The G7X Mark III writes its imaging data to SDXC cards, while the A7 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 Alpha A7 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
 
Sony A7«YstereomonoYYmicro2.0YY-Sony A7
 
Canon G5 X Mark II« »-stereomono--micro3.1Y-YCanon G5 X Mark II
 
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
 
Leica C-LUX« »-stereomono--micro2.0Y--Leica C-LUX
 
Panasonic FZ1000 II« »Ystereomono--micro2.0Y-YPanasonic FZ1000 II
 
Panasonic ZS200« »-stereomono--micro2.0Y-YPanasonic ZS200
 
Sony RX100 VII« »-stereomonoY-micro2.0YYYSony RX100 VII
 
Sony RX100 VI« »-stereomono--micro2.0YYYSony RX100 VI
 
Sony A7 II« »YstereomonoYYmicro2.0YY-Sony A7 II
 
Sony A7S« »YstereomonoYYmicro2.0YY-Sony A7S
 
Sony A7R« »YstereomonoYYmicro2.0YY-Sony A7R
 
Sony RX1R« »YstereomonoY-mini2.0---Sony RX1R
 
Sony RX1« »YstereomonoY-mini2.0---Sony RX1

It is notable that the A7 has a hotshoe, which makes it possible to easily attach optional accessories, such as an external flash gun. The G7X Mark III does not feature such an accessory-socket.

The G7X Mark III is a recent model that features in the current product line-up of Canon. In contrast, the A7 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the A7 was succeeded by the Sony A7 II. 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 G7 X Mark III and the Sony A7? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Canon PowerShot G7 X Mark III:

  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • 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 (30 vs 5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Ready to shoot: Has a lens built-in, whereas the A7 requires a separate lens.
  • More compact: Is smaller (105x61mm vs 127x94mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7).
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 5 years and 8 months of technical progress since the A7 launch.

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Reasons to prefer the Sony Alpha A7:

  • More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1230k vs 1040k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (340 versus 235) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More heavily discounted: Has been around for much longer (launched in October 2013).

If the count of relative strengths (bullet points above) is taken as a measure, the G7X Mark III emerges as the winner of the contest (15 : 12 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 III 15:12 A7

How about other alternatives? Do the specifications of the Canon G7 X Mark III and the Sony A7 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens 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 Mark III or the A7 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.

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
 
Sony A7«+ +80/1005/54.5/55/5 Oct 2013 1,699- i Sony A7
 
Canon G5 X Mark II« »+82/100--4/5 Jul 2019 899 i i Canon G5 X Mark II
 
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
 
Leica C-LUX« »--4.5/5-4/5 Jun 2018 1,049 i i Leica C-LUX
 
Panasonic FZ1000 II« »--4.5/5-4.5/5 Feb 2019 899 i i Panasonic FZ1000 II
 
Panasonic ZS200« »+ +81/1004.5/5-4.5/5 Feb 2018 799 i i Panasonic ZS200
 
Sony RX100 VII« »--4/5-- Jul 2019 1,199 i i Sony RX100 VII
 
Sony RX100 VI« »+ +83/1004/5-4.5/5 Jun 2018 1,199- i Sony RX100 VI
 
Sony A7 II« »+82/1004.5/55/55/5 Nov 2014 1,999- i Sony A7 II
 
Sony A7S« »-86/1004.5/54.5/55/5 Apr 2014 2,499- i Sony A7S
 
Sony A7R« »+ +82/1004.5/55/55/5 Oct 2013 2,299- i Sony A7R
 
Sony RX1R« »--4/5o4.5/5 Jun 2013 2,799- i Sony RX1R
 
Sony RX1« »-79/1004/54.5/54.5/5 Sep 2012 2,799- i Sony RX1
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Canon G7 X Mark III:
Check Amazon price
Sony A7:
Check Ebay offers

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 A7

    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 A7
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 24-100mm f/1.8-2.8 Sony E mount lenses
    Launch Date July 2019 October 2013
    Launch Price USD 749 USD 1699
    Sensor Specs Canon G7 X Mark III Sony A7
    Sensor Technology BSI-CMOS CMOS
    Sensor Format 1" Sensor Full Frame Sensor
    Sensor Size 13.2 x 8.8 mm 35.8 x 23.9 mm
    Sensor Area 116.16 mm2 855.62 mm2
    Sensor Diagonal 15.9 mm 43 mm
    Crop Factor 2.7x 1.0x
    Sensor Resolution 20 Megapixels 24 Megapixels
    Image Resolution 5472 x 3648 pixels 6000 x 4000 pixels
    Pixel Pitch 2.41 μm 5.97 μm
    Pixel Density 17.18 MP/cm2 2.80 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 4K/30p Video 1080/60p Video
    ISO Setting 125-12800 ISO 100-25600 ISO
    ISO Boost 125-25600 ISO 50-51200 ISO
    Image Processor DIGIC 8 BIONZ X
    DXO Sensor Quality (score) .. 90
    DXO Color Depth (bits) .. 24.8
    DXO Dynamic Range (EV) .. 14.2
    DXO Low Light (ISO) .. 2248
    Screen Specs Canon G7 X Mark III Sony A7
    Viewfinder Type No viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.71x
    Viewfinder Resolution 2400k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 1040k dots 1230k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon G7 X Mark III Sony A7
    Autofocus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000/s 1/8000/s
    Continuous Shooting 30 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterup to 1/25600sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Build-in Flash no On-Board 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 A7
    External Flash no Hotshoe Hotshoe
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon G7 X Mark III Sony A7
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type NB-13L NP-FW50
    Battery Life (CIPA)235 shots per charge340 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)
    127 x 94 x 48 mm
    (5.0 x 3.7 x 1.9 in)
    Camera Weight 304 g (10.7 oz) 474 g (16.7 oz)

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