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Canon G15 vs G7X Mark III

The Canon PowerShot G15 and the Canon PowerShot G7 X Mark III are two digital cameras that were revealed to the public, respectively, in September 2012 and July 2019. Both the G15 and the G7X Mark III are fixed lens compact cameras that are based on a 1/1.7-inch (G15) and an one-inch (G7X Mark III) sensor. The G15 has a resolution of 12 megapixels, whereas the G7X Mark III 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 G15
versus
Canon G7 X Mark III
Canon G15   Canon G7 X Mark III
Fixed lens compact camera Fixed lens compact camera
28-140mm f/1.8-2.8 24-100mm f/1.8-2.8
12 MP – 1/1.7" sensor 20 MP – 1" sensor
1080/24p Video 4K/30p Video
ISO 80-12,800 ISO 125-12,800 (125 - 25,600)
Optical viewfinder No viewfinder, LCD framing
3.0" LCD – 922k dots 3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
2.1 shutter flaps per second 30 shutter flaps per second
350 shots per battery charge235 shots per battery charge
107 x 76 x 40 mm, 352 g 105 x 61 x 41 mm, 304 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G15 and the Canon PowerShot G7 X Mark 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon G15 and the Canon G7 X Mark III. 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 dimensions are rounded to the nearest millimeter.

The G7X Mark III can be obtained in two different colors (black, silver), while the G15 is only available in black.

Size Canon G15 vs Canon G7 X Mark III
Compare G15 versus G7X Mark III top
Comparison G15 or G7X Mark III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G7 X Mark III is notably smaller (21 percent) than the Canon G15. Moreover, the G7X Mark III is markedly lighter (14 percent) than the G15. In this context, it is worth noting that neither the G15 nor the G7X Mark III are weather-sealed.

Concerning battery life, the G15 gets 350 shots out of its Canon NB-10L battery, while the G7X Mark III can take 235 images on a single charge of its Canon NB-13L power pack. The power pack in the G7X Mark III can be charged via the USB port, 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. 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon G15 107 mm 76 mm 40 mm 352 g 350 n Sep 2012 US$ 499ebay.com
2.
 
Canon G7 X Mark III 105 mm 61 mm 41 mm 304 g 235 n Jul 2019 US$ 749 amazon.com
3.
 
Canon G5 X 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 US$ 799ebay.com
4.
 
Canon G5 X Mark II 111 mm 61 mm 46 mm 340 g 230 n Jul 2019 US$ 899ebay.com
5.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 US$ 699ebay.com
6.
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 US$ 699ebay.com
7.
 
Canon G12 112 mm 76 mm 48 mm 401 g 370 n Sep 2010 US$ 499ebay.com
8.
 
Canon G16 109 mm 76 mm 40 mm 356 g 360 n Aug 2013 US$ 549ebay.com
9.
 
Canon S120 100 mm 59 mm 29 mm 217 g 230 n Aug 2013 US$ 449ebay.com
10.
 
Canon SX50 123 mm 87 mm 106 mm 595 g 315 n Sep 2012 US$ 429ebay.com
11.
 
Canon SX60 128 mm 93 mm 114 mm 650 g 340 n Sep 2014 US$ 549ebay.com
12.
 
Fujifilm X10 117 mm 70 mm 57 mm 350 g 270 n Sep 2011 US$ 599ebay.com
13.
 
Fujifilm X20 117 mm 70 mm 57 mm 353 g 270 n Jan 2013 US$ 599ebay.com
14.
 
Nikon P7800 119 mm 78 mm 50 mm 399 g 350 n Sep 2013 US$ 549ebay.com
15.
 
Panasonic FZ150 124 mm 82 mm 92 mm 528 g 410 n Aug 2011 US$ 499ebay.com
16.
 
Panasonic LX7 111 mm 68 mm 46 mm 298 g 330 n Jul 2012 US$ 499ebay.com
17.
 
Sony ZV-1 105 mm 60 mm 44 mm 294 g 260 n May 2020 US$ 799ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The G15 was launched at a markedly lower price (by 33 percent) than the G7X Mark 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon G15 features a 1/1.7-inch sensor and the Canon G7 X Mark III an one-inch sensor. The sensor area in the G7X Mark III is 170 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.6 and 2.7. The sensor in the G15 has a native 4:3 aspect ratio, while the one in the G7X Mark III offers a 3:2 aspect.

Technology-wise, the G7X Mark III uses a more advanced image processing engine (DIGIC 8) than the G15 (DIGIC 5), with benefits for noise reduction, color accuracy, and processing speed.

Canon G15 and Canon G7 X Mark III sensor measures

With 20MP, the G7X Mark III offers a higher resolution than the G15 (12MP), but the G7X Mark III nevertheless has larger individual pixels (pixel pitch of 2.41μm versus 1.89μm for the G15) due to its larger sensor. Moreover, the G7X Mark III is a much more recent model (by 6 years and 9 months) than the G15, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

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 Canon G15 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 G15 has a native sensitivity range from ISO 80 to ISO 12800. The corresponding ISO settings for the Canon PowerShot G7 X Mark III are ISO 125 to ISO 12800, with the possibility to increase the ISO range to 125-25600.

In terms of underlying technology, the G15 is build around a CMOS sensor, while the G7X Mark III uses a BSI-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.

G15 versus G7X Mark III 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 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon G15 1/1.7 12.0 4000 30001080/24p19.911.516546
2.
 
Canon G7 X Mark III 1-inch 20.0 5472 36484K/30p22.212.458365
3.
 
Canon G5 X 1-inch 20.0 5472 36481080/60p21.412.347162
4.
 
Canon G5 X Mark II 1-inch 20.0 5472 36484K/30p22.212.458365
5.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
6.
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p21.811.926062
7.
 
Canon G12 1/1.7 10.0 3648 2736720/24p20.411.216147
8.
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
9.
 
Canon S120 1/1.7 12.0 4000 30001080/60p21.311.924656
10.
 
Canon SX50 1/2.3 12.0 4000 30001080/24p20.311.217947
11.
 
Canon SX60 1/2.3 14.2 4608 30721080/60p19.210.812739
12.
 
Fujifilm X10 2/3 12.0 4000 30001080/30p20.511.324550
13.
 
Fujifilm X20 2/3 12.0 4000 30001080/60p20.110.9-46246
14.
 
Nikon P7800 1/1.7 12.0 4000 30001080/30p21.211.720054
15.
 
Panasonic FZ150 1/2.3 12.0 4000 30001080/60p19.410.913240
16.
 
Panasonic LX7 1/1.7 10.0 3648 27361080/60p20.711.714750
17.
 
Sony ZV-1 1-inch 20.0 5472 36484K/30p22.212.666966
Note: DXO values in italics represent estimates based on sensor size and age.

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 better video resolution than the G15. It can shoot movie footage at 4K/30p, while the G15 is limited to 1080/24p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G15 has an optical viewfinder, which can be very useful 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 G15 and Canon G7 X Mark III along with similar information for a selection of comparators.

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Core Features
  empty 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 G15optical n3.0 / 922 fixed n 1/4000s 2.1/s Y Y
2.
 
Canon G7 X Mark IIInone n3.0 / 1040 tilting Y 1/2000s 30/s Y Y
3.
 
Canon G5 X2360 n3.0 / 1040 swivel Y 1/2000s 5.9/s Y Y
4.
 
Canon G5 X Mark II2360 n3.0 / 1040 tilting Y 1/2000s 30/s Y Y
5.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
6.
 
Canon G7 X Mark IInone n3.0 / 1040 tilting Y 1/2000s 8.0/s Y Y
7.
 
Canon G12optical n2.8 / 461 swivel n 1/4000s 1.1/s Y Y
8.
 
Canon G16optical n3.0 / 922 fixed n 1/4000s 2.2/s Y Y
9.
 
Canon S120none n3.0 / 922 fixed Y 1/2000s 12.1/s Y Y
10.
 
Canon SX50202 n3.0 / 461 swivel n 1/2000s 2.2/s Y Y
11.
 
Canon SX60922 n3.0 / 922 swivel n 1/2000s 6.4/s Y Y
12.
 
Fujifilm X10optical n2.8 / 460 fixed n 1/4000s 10.0/s Y Y
13.
 
Fujifilm X20optical n2.8 / 460 fixed n 1/4000s 12.0/s Y Y
14.
 
Nikon P7800921 n3.0 / 921 swivel n 1/4000s 8.0/s Y Y
15.
 
Panasonic FZ150202 n3.0 / 460 swivel n 1/2000s 12.0/s Y Y
16.
 
Panasonic LX7optional n3.0 / 920 fixed n 1/4000s 11.0/s Y Y
17.
 
Sony ZV-1none n3.0 / 922 swivel Y 1/2000s 24.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G7X Mark III has a touchscreen, while the G15 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The G7X Mark 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 G15 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.

Both the G15 and the G7X Mark III have zoom lenses built in. The G15 has a 28-140mm f/1.8-2.8 optic and the G7X Mark III offers a 24-100mm f/1.8-2.8 (focal lengths in full frame equivalent terms). Hence, the G7X Mark III provides a wider angle of view at the short end than the G15, but less tele-photo reach at the long end. Both cameras offer the same maximum aperture.

Concerning the storage of imaging data, both the G15 and the G7X Mark III 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 G15 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 G15 and Canon PowerShot G7 X Mark 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
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon G15Ystereo / mono--mini2.0---
2.
 
Canon G7 X Mark III-stereo / monoY-micro3.1Y-Y
3.
 
Canon G5 XYstereo / mono--mini2.0YY-
4.
 
Canon G5 X Mark II-stereo / mono--micro3.1Y-Y
5.
 
Canon G7 X-stereo / mono--micro2.0YY-
6.
 
Canon G7 X Mark II-stereo / mono--micro2.0YY-
7.
 
Canon G12Ystereo / mono--mini2.0---
8.
 
Canon G16Ystereo / mono--mini2.0Y--
9.
 
Canon S120-stereo / mono--mini2.0Y--
10.
 
Canon SX50Ystereo / mono--mini2.0---
11.
 
Canon SX60Ystereo / monoY-mini2.0YY-
12.
 
Fujifilm X10Ystereo / mono--mini2.0---
13.
 
Fujifilm X20Ystereo / mono--micro2.0---
14.
 
Nikon P7800Ystereo / monoY-mini2.0---
15.
 
Panasonic FZ150Ystereo / ---mini2.0---
16.
 
Panasonic LX7Ystereo / mono--mini2.0---
17.
 
Sony ZV-1Ystereo / monoY-micro2.0Y-Y

It is notable that the G15 has a hotshoe, while the G7X Mark III does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

The G7X Mark III is a recent model that features in the current product line-up of Canon. In contrast, the G15 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the G15 was succeeded by the Canon G16. Further information on the features and operation of the G15 and G7X Mark III can be found, respectively, in the Canon G15 Manual (free pdf) or the online Canon G7 X Mark III Manual.

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Review summary

So what is the bottom line? Is the Canon G15 better than the Canon G7 X Mark III or vice versa? A synthesis of the relative strong points of each of the models is listed below.


Arguments in favor of the Canon PowerShot G15:

  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
  • More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
  • Longer lasting: Can take more shots (350 versus 235) on a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in September 2012).


Advantages of the Canon PowerShot G7 X Mark III:

  • More detail: Has more megapixels (20 vs 12MP), which boosts linear resolution by 32%.
  • Better image quality: Is equipped with a larger and more technologically advanced 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 jpgs: Has a more modern image processing engine (DIGIC 8 vs DIGIC 5).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/24p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (30 vs 2.1 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.
  • Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
  • More compact: Is smaller (105x61mm vs 107x76mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 48g or 14 percent) and is thus easier to take along.
  • 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 6 years and 9 months of technical progress since the G15 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the G7X Mark III is the clear winner of the contest (24 : 7 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.

G15 07:24 G7X Mark III

How about other alternatives? Do the specifications of the Canon G15 and the Canon G7 X Mark III 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the G15 or the G7X Mark III perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

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 (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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon G154/5+..76/1004.5/54.5/5 Sep 2012 US$ 499ebay.com
2.
 
Canon G7 X Mark III..+ +4/581/1004/5.. Jul 2019 US$ 749 amazon.com
3.
 
Canon G5 X5/5+ +..78/1004.5/54.5/5 Oct 2015 US$ 799ebay.com
4.
 
Canon G5 X Mark II4/5+4/582/100..4/5 Jul 2019 US$ 899ebay.com
5.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 US$ 699ebay.com
6.
 
Canon G7 X Mark II4.5/5+ +..81/1004.5/54.5/5 Feb 2016 US$ 699ebay.com
7.
 
Canon G124/5+..73/1004.5/54.5/5 Sep 2010 US$ 499ebay.com
8.
 
Canon G164/5+....4.5/54.5/5 Aug 2013 US$ 549ebay.com
9.
 
Canon S120..+ +....4.5/54.5/5 Aug 2013 US$ 449ebay.com
10.
 
Canon SX503/5+ +..72/1004.5/54.5/5 Sep 2012 US$ 429ebay.com
11.
 
Canon SX603/5+ +..75/1004/54.5/5 Sep 2014 US$ 549ebay.com
12.
 
Fujifilm X10......76/1004/54.5/5 Sep 2011 US$ 599ebay.com
13.
 
Fujifilm X204/5+ +..77/1004.5/55/5 Jan 2013 US$ 599ebay.com
14.
 
Nikon P78003/5......4/54.5/5 Sep 2013 US$ 549ebay.com
15.
 
Panasonic FZ1503/5+ +..76/1004/54.5/5 Aug 2011 US$ 499ebay.com
16.
 
Panasonic LX73/5+ +..75/1004/54.5/5 Jul 2012 US$ 499ebay.com
17.
 
Sony ZV-14/5+4/585/1004/54.5/5 May 2020 US$ 799ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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.

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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 your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon G15 vs Canon G7 X Mark 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 G15 Canon G7 X Mark III
    Camera Type Fixed lens compact camera Fixed lens compact camera
    Camera Lens 28-140mm f/1.8-2.8 24-100mm f/1.8-2.8
    Launch Date September 2012 July 2019
    Launch Price USD 499 USD 749
    Sensor Specs Canon G15 Canon G7 X Mark III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format 1/1.7" Sensor 1" Sensor
    Sensor Size 7.6 x 5.7 mm 13.2 x 8.8 mm
    Sensor Area 43.32 mm2 116.16 mm2
    Sensor Diagonal 9.5 mm 15.9 mm
    Crop Factor 4.6x 2.7x
    Sensor Resolution 12 Megapixels 20 Megapixels
    Image Resolution 4000 x 3000 pixels 5472 x 3648 pixels
    Pixel Pitch 1.89 μm 2.41 μm
    Pixel Density 27.70 MP/cm2 17.18 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/24p Video 4K/30p Video
    ISO Setting 80 - 12,800 ISO 125 - 12,800 ISO
    ISO Boost no Enhancement 125 - 25,600 ISO
    Image Processor DIGIC 5 DIGIC 8
    DXO Sensor Quality (score) 46 ..
    DXO Color Depth (bits) 19.9 ..
    DXO Dynamic Range (EV) 11.5 ..
    DXO Low Light (ISO) 165 ..
    Screen Specs Canon G15 Canon G7 X Mark III
    Viewfinder Type Optical viewfinder no viewfinder
    Viewfinder Field of View 80%
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 922k dots 1040k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon G15 Canon G7 X Mark III
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/2000s
    Continuous Shooting 2.1 shutter flaps/s 30 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/25600s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    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 no UHS-I
    Connectivity Specs Canon G15 Canon G7 X Mark III
    External Flash Hotshoe no Hotshoe
    USB Connector USB 2.0 USB 3.1
    HDMI Port mini HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Canon G15 Canon G7 X Mark III
    Battery Type Canon NB-10L Canon NB-13L
    Battery Life (CIPA)350 shots per charge235 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 107 x 76 x 40 mm
    (4.2 x 3.0 x 1.6 in)
    105 x 61 x 41 mm
    (4.1 x 2.4 x 1.6 in)
    Camera Weight 352 g (12.4 oz) 304 g (10.7 oz)
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