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Canon G7 X Mark III vs Pentax Q

The Canon PowerShot G7 X Mark III and the Pentax Q are two digital cameras that were officially introduced, respectively, in July 2019 and June 2011. The G7X Mark III is a fixed lens compact, while the Pentax Q is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (G7X Mark III) and a 1/2.3-inch (Pentax Q) sensor. The Canon has a resolution of 20 megapixels, whereas the Pentax provides 12 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
versus
Pentax Q
Canon G7 X Mark III   Pentax Q
Fixed lens compact camera Mirrorless system camera
24-100mm f/1.8-2.8 Pentax Q mount lenses
20 MP – 1" sensor 12 MP – 1/2.3" sensor
4K/30p Video 1080/30p Video
ISO 125-12,800 (125 - 25,600) ISO 125-6,400
No viewfinder, LCD framing Viewfinder optional
3.0" LCD – 1040k dots 3.0" LCD – 460k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
30 shutter flaps per second 1.5 shutter flaps per second
Lens-based stabilizationIn-body stabilization
235 shots per battery charge230 shots per battery charge
105 x 61 x 41 mm, 304 g 98 x 57 x 31 mm, 180 g
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Check Pentax Q offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G7 X Mark III and the Pentax Q? 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.

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Body comparison

An illustration of the physical size and weight of the Canon G7 X Mark III and the Pentax Q 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 Pentax Q is also available in two color-versions, but different ones (black, white).

Size Canon G7 X Mark III vs Pentax Q
Compare G7X Mark III versus Pentax Q top
Comparison G7X Mark III or Pentax Q rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax Q is notably smaller (13 percent) than the Canon G7 X Mark III. In this context, it is worth noting that neither the G7X Mark III nor the Pentax Q are weather-sealed.

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 Pentax Q is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

The power pack in the G7X Mark III 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 would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G7 X Mark III 105 mm 61 mm 41 mm 304 g 235 n Jul 2019 749 amazon.com
2.
 
Pentax Q 98 mm 57 mm 31 mm 180 g 230 n Jun 2011 649ebay.com
3.
 
Canon G5 X Mark II 111 mm 61 mm 46 mm 340 g 230 n Jul 2019 899ebay.com
4.
 
Canon M50 116 mm 88 mm 59 mm 390 g 235 n Feb 2018 779ebay.com
5.
 
Canon SX740 110 mm 64 mm 40 mm 299 g 265 n Jul 2018 399 amazon.com
6.
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699ebay.com
7.
 
Canon G5 X 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799ebay.com
8.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
9.
 
Fujifilm XF10 113 mm 64 mm 41 mm 279 g 330 n Jul 2018 499ebay.com
10.
 
Olympus XZ-2 113 mm 65 mm 48 mm 346 g 340 n Sep 2012 599ebay.com
11.
 
Olympus E-PL2 114 mm 72 mm 42 mm 362 g 280 n Jan 2011 599ebay.com
12.
 
Olympus E-PL3 110 mm 64 mm 37 mm 313 g 300 n Jun 2011 599ebay.com
13.
 
Olympus E-PL1 115 mm 72 mm 42 mm 334 g 290 n Feb 2010 599ebay.com
14.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699ebay.com
15.
 
Panasonic TZ200 111 mm 65 mm 45 mm 340 g 370 n Feb 2018 799 amazon.com
16.
 
Sony ZV-1 105 mm 60 mm 44 mm 294 g 260 n May 2020 799ebay.com
17.
 
Sony RX100 VI 102 mm 58 mm 43 mm 301 g 240 n Jun 2018 1,199ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. 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 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 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. 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 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 Pentax Q a 1/2.3-inch sensor. The sensor area in the Pentax Q 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 III has a native 3:2 aspect ratio, while the one in the Pentax Q offers a 4:3 aspect.

Canon G7 X Mark III and Pentax Q sensor measures

With 20MP, the G7X Mark III offers a higher resolution than the Pentax Q (12MP), but the G7X Mark III nevertheless has larger individual pixels (pixel pitch of 2.41μm versus 1.53μm for the Pentax Q) due to its larger sensor. Moreover, the G7X Mark III is a much more recent model (by 8 years) than the Pentax Q, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon G7 X Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G7X Mark III for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Pentax Q are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

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 Pentax Q are ISO 125 to ISO 6400 (no boost).

In terms of underlying technology, the G7X Mark III is build around a BSI-CMOS sensor, while the Pentax Q uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

G7X Mark III versus Pentax Q MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 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
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon G7 X Mark III 1-inch 20.0 5472 36484K/30p22.212.458365
2.
 
Pentax Q 1/2.3 12.0 4000 30001080/30p20.211.118947
3.
 
Canon G5 X Mark II 1-inch 20.0 5472 36484K/30p22.212.458365
4.
 
Canon M50 APS-C 24.0 6000 40004K/24p23.813.3168481
5.
 
Canon SX740 1/2.3 20.2 5184 38884K/30p20.612.1105051
6.
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p21.811.926062
7.
 
Canon G5 X 1-inch 20.0 5472 36481080/60p21.412.347162
8.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
9.
 
Fujifilm XF10 APS-C 24.0 6000 40004K/15p24.013.4184483
10.
 
Olympus XZ-2 1/1.7 11.8 3968 29761080/30p20.411.321649
11.
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.257355
12.
 
Olympus E-PL3 Four Thirds 12.2 4032 30241080/60i20.910.349952
13.
 
Olympus E-PL1 Four Thirds 12.2 4032 3024720/30p21.510.148754
14.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
15.
 
Panasonic TZ200 1-inch 20.0 5472 36484K/30p22.012.244964
16.
 
Sony ZV-1 1-inch 20.0 5472 36484K/30p22.212.666966
17.
 
Sony RX100 VI 1-inch 20.0 5472 36484K/30p22.112.347864
Note: DXO values in italics represent estimates based on sensor size and age.
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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, but the G7X Mark III provides a higher video resolution than the Pentax Q. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The G7X Mark III and the Pentax Q 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. That said, the Pentax Q can be equipped with an optional viewfinder – the O-VF1. The following table reports on some other key feature differences and similarities of the Canon G7 X Mark III, the Pentax Q, and comparable cameras.

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Core Features
# image Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon G7 X Mark IIInone n3.0 / 1040 tilting Y 1/2000s 30/s Y Y
2.
 
Pentax Qoptional n3.0 / 460 fixed n 1/2000s 1.5/s Y Y
3.
 
Canon G5 X Mark II2360 n3.0 / 1040 tilting Y 1/2000s 30/s Y Y
4.
 
Canon M502360 n3.0 / 1040 swivel Y 1/4000s 10.0/s Y n
5.
 
Canon SX740none n3.0 / 922 tilting n 1/3200s 10.0/s Y Y
6.
 
Canon G7 X Mark IInone n3.0 / 1040 tilting Y 1/2000s 8.0/s Y Y
7.
 
Canon G5 X2360 n3.0 / 1040 swivel Y 1/2000s 5.9/s Y Y
8.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
9.
 
Fujifilm XF10none n3.0 / 1040 fixed Y 1/4000s 6.0/s Y n
10.
 
Olympus XZ-2optional n3.0 / 920 tilting Y 1/2000s 5.0/s Y Y
11.
 
Olympus E-PL2optional n3.0 / 460 fixed n 1/4000s 3.0/s Y Y
12.
 
Olympus E-PL3optional n3.0 / 460 tilting n 1/4000s 5.5/s n Y
13.
 
Olympus E-PL1optional n2.7 / 230 fixed n 1/2000s 3.0/s Y Y
14.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
15.
 
Panasonic TZ2002330 n3.0 / 1240 fixed Y 1/2000s 10.0/s Y Y
16.
 
Sony ZV-1none n3.0 / 922 swivel Y 1/2000s 24.0/s n n
17.
 
Sony RX100 VI2359 n3.0 / 1229 tilting Y 1/2000s 24.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G7X Mark III has a touchscreen, while the Pentax Q has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 Pentax Q 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 and the Pentax Q 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.

Concerning the storage of imaging data, both the G7X Mark III and the Pentax Q write their files to SDXC cards. The G7X Mark III supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the Pentax Q cannot take advantage of Ultra High Speed SD cards.

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

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon G7 X Mark III-stereo / monoY-micro3.1Y-Y
2.
 
Pentax QYmono / mono--mini2.0---
3.
 
Canon G5 X Mark II-stereo / mono--micro3.1Y-Y
4.
 
Canon M50Ystereo / monoY-micro2.0Y-Y
5.
 
Canon SX740-stereo / mono--micro2.0Y-Y
6.
 
Canon G7 X Mark II-stereo / mono--micro2.0YY-
7.
 
Canon G5 XYstereo / mono--mini2.0YY-
8.
 
Canon G7 X-stereo / mono--micro2.0YY-
9.
 
Fujifilm XF10-stereo / monoY-micro2.0Y-Y
10.
 
Olympus XZ-2Ystereo / mono--mini2.0---
11.
 
Olympus E-PL2Ystereo / ---mini2.0---
12.
 
Olympus E-PL3Ystereo / ---mini2.0---
13.
 
Olympus E-PL1Ystereo / ---mini2.0---
14.
 
Olympus E-620Y- / ----2.0---
15.
 
Panasonic TZ200-stereo / mono--micro2.0Y-Y
16.
 
Sony ZV-1Ystereo / monoY-micro2.0Y-Y
17.
 
Sony RX100 VI-stereo / mono--micro2.0YYY
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It is notable that the G7X Mark III has a microphone port, which is missing on the Pentax Q. 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 is a recent model that features in the current product line-up of Canon. In contrast, the Pentax Q has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the Pentax Q was succeeded by the Pentax Q10. Further information on the features and operation of the G7X Mark III and Pentax Q can be found, respectively, in the Canon G7 X Mark III Manual (free pdf) or the online Pentax Q Manual.

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Review summary

So what is the bottom line? Is there a clear favorite between the Canon G7 X Mark III and the Pentax Q? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Canon PowerShot G7 X Mark III:

  • More detail: Offers more megapixels (20 vs 12MP) with a 32% higher linear resolution.
  • Better image quality: Features a larger and more technologically advanced imaging sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 460k 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 (30 vs 1.5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Ready to shoot: Has a lens built-in, whereas the Pentax Q requires a separate lens.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 8 years of technical progress since the Pentax Q launch.

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Reasons to prefer the Pentax Q:

  • More framing options: Can be equipped with a hotshoe-mounted accessory-viewfinder.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • More compact: Is smaller (98x57mm vs 105x61mm) and will fit more readily into a bag.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • More heavily discounted: Has been around for much longer (launched in June 2011).

If the number of relative strengths (bullet points above) is taken as a guide, the G7X Mark III is the clear winner of the match-up (20 : 5 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 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 20:05 Pentax Q

How about other alternatives? Do the specifications of the Canon G7 X Mark III and the Pentax Q 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G7X Mark III or the Pentax Q. 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 following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G7 X Mark III..+ +4/581/1004/5.. Jul 2019 749 amazon.com
2.
 
Pentax Q3/5......4/53.5/5 Jun 2011 649ebay.com
3.
 
Canon G5 X Mark II4/5+4/582/100..4/5 Jul 2019 899ebay.com
4.
 
Canon M50..+4/579/100..3.5/5 Feb 2018 779ebay.com
5.
 
Canon SX740..+3.5/5..4/54/5 Jul 2018 399 amazon.com
6.
 
Canon G7 X Mark II4.5/5+ +..81/1004.5/54.5/5 Feb 2016 699ebay.com
7.
 
Canon G5 X5/5+ +..78/1004.5/54.5/5 Oct 2015 799ebay.com
8.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
9.
 
Fujifilm XF10....4/575/1004/54.5/5 Jul 2018 499ebay.com
10.
 
Olympus XZ-24/5+....4.5/54.5/5 Sep 2012 599ebay.com
11.
 
Olympus E-PL23/583/100..71/1004.5/54.5/5 Jan 2011 599ebay.com
12.
 
Olympus E-PL33/5+ +..72/1004.5/54/5 Jun 2011 599ebay.com
13.
 
Olympus E-PL1..86/100..69/1004/54.5/5 Feb 2010 599ebay.com
14.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 699ebay.com
15.
 
Panasonic TZ200..+ +4.5/581/1004.5/54.5/5 Feb 2018 799 amazon.com
16.
 
Sony ZV-14/5+4/585/1004/54.5/5 May 2020 799ebay.com
17.
 
Sony RX100 VI4.5/5+ +..83/1004/54.5/5 Jun 2018 1,199ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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.

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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 Pentax Q

    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 Pentax Q
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 24-100mm f/1.8-2.8 Pentax Q mount lenses
    Launch Date July 2019 June 2011
    Launch Price USD 749 USD 649
    Sensor Specs Canon G7 X Mark III Pentax Q
    Sensor Technology BSI-CMOS 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 12 Megapixels
    Image Resolution 5472 x 3648 pixels 4000 x 3000 pixels
    Pixel Pitch 2.41 μm 1.53 μm
    Pixel Density 17.18 MP/cm2 42.74 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 4K/30p Video 1080/30p Video
    ISO Setting 125 - 12,800 ISO 125 - 6,400 ISO
    ISO Boost 125 - 25,600 ISO no Enhancement
    DXO Sensor Quality (score) .. 47
    DXO Color Depth (bits) .. 20.2
    DXO Dynamic Range (EV) .. 11.1
    DXO Low Light (ISO) .. 189
    Screen Specs Canon G7 X Mark III Pentax Q
    Viewfinder Type no viewfinder Viewfinder optional
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 460k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon G7 X Mark III Pentax Q
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 30 shutter flaps/s 1.5 shutter flaps/s
    Electronic Shutterup to 1/25600sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens-based stabilizationIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I no
    Connectivity Specs Canon G7 X Mark III Pentax Q
    External Flash no Hotshoe Hotshoe
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon G7 X Mark III Pentax Q
    Battery Type Canon NB-13L Pentax D-LI68
    Battery Life (CIPA)235 shots per charge230 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 105 x 61 x 41 mm
    (4.1 x 2.4 x 1.6 in)
    98 x 57 x 31 mm
    (3.9 x 2.2 x 1.2 in)
    Camera Weight 304 g (10.7 oz) 180 g (6.3 oz)
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