Canon G7 X Mark III vs SX20
The Canon PowerShot G7 X Mark III and the Canon PowerShot SX20 IS are two digital cameras that were officially introduced, respectively, in July 2019 and August 2009. Both the G7X Mark III and the SX20 are fixed lens compact cameras that are based on an one-inch (G7X Mark III) and a 1/2.3-inch (SX20) sensor. The G7X Mark III has a resolution of 20 megapixels, whereas the SX20 provides 12 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G7 X Mark III and the Canon PowerShot SX20 IS? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
Body comparison
An illustration of the physical size and weight of the Canon G7 X Mark III and the Canon SX20 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side 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 SX20 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon SX20 is considerably larger (69 percent) than the Canon G7 X Mark III. Moreover, the SX20 is substantially heavier (97 percent) than the G7X Mark III. In this context, it is worth noting that neither the G7X Mark III nor the SX20 are weather-sealed.
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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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.
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. | Canon SX20 | 123 mm | 88 mm | 87 mm | 600 g | .. | n | Aug 2009 | 399 | ebay.com | |
3. | Canon G5 X | 112 mm | 76 mm | 44 mm | 353 g | 210 | n | Oct 2015 | 799 | ebay.com | |
4. | Canon G5 X Mark II | 111 mm | 61 mm | 46 mm | 340 g | 230 | n | Jul 2019 | 899 | ebay.com | |
5. | Canon G7 X | 103 mm | 60 mm | 40 mm | 304 g | 210 | n | Sep 2014 | 699 | ebay.com | |
6. | Canon G7 X Mark II | 106 mm | 61 mm | 42 mm | 319 g | 265 | n | Feb 2016 | 699 | ebay.com | |
7. | Canon SX1 | 128 mm | 88 mm | 88 mm | 615 g | .. | n | Sep 2008 | 599 | ebay.com | |
8. | Canon SX10 | 123 mm | 88 mm | 87 mm | 600 g | .. | n | Sep 2008 | 399 | ebay.com | |
9. | Canon SX30 | 123 mm | 92 mm | 108 mm | 601 g | 370 | n | Sep 2010 | 429 | ebay.com | |
10. | Canon SX40 | 123 mm | 92 mm | 108 mm | 600 g | 380 | n | Sep 2011 | 429 | ebay.com | |
11. | Canon SX50 | 123 mm | 87 mm | 106 mm | 595 g | 315 | n | Sep 2012 | 429 | ebay.com | |
12. | Canon SX740 | 110 mm | 64 mm | 40 mm | 299 g | 265 | n | Jul 2018 | 399 | amazon.com | |
13. | Leica C-LUX | 113 mm | 67 mm | 46 mm | 340 g | 370 | n | Jun 2018 | 1,049 | ebay.com | |
14. | Panasonic FZ1000 II | 136 mm | 97 mm | 131 mm | 810 g | 350 | n | Feb 2019 | 899 | amazon.com | |
15. | Panasonic ZS200 | 111 mm | 65 mm | 45 mm | 340 g | 370 | n | Feb 2018 | 799 | amazon.com | |
16. | Sony RX100 VI | 102 mm | 58 mm | 43 mm | 301 g | 240 | n | Jun 2018 | 1,199 | ebay.com | |
17. | Sony ZV-1 | 105 mm | 60 mm | 44 mm | 294 g | 260 | n | May 2020 | 799 | ebay.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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The SX20 was launched at a markedly lower price (by 47 percent) than the G7X Mark III, which puts it into a different market segment. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon G7 X Mark III features an one-inch sensor and the Canon SX20 a 1/2.3-inch sensor. The sensor area in the SX20 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 SX20 offers a 4:3 aspect.
In terms of chip-set technology, the G7X Mark III uses a more advanced image processing engine (DIGIC 8) than the SX20 (DIGIC 4), with benefits for noise reduction, color accuracy, and processing speed.
With 20MP, the G7X Mark III offers a higher resolution than the SX20 (12MP), but the G7X Mark III nevertheless has larger individual pixels (pixel pitch of 2.41μm versus 1.53μm for the SX20) due to its larger sensor. Moreover, the G7X Mark III is a much more recent model (by 9 years and 10 months) than the SX20, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the SX20 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
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 SX20 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 Canon PowerShot SX20 IS are ISO 100 to ISO 3200 (no boost).
In terms of underlying technology, the G7X Mark III is build around a BSI-CMOS sensor, while the SX20 uses a CCD 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.
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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
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 | 3648 | 4K/30p | 22.2 | 12.4 | 583 | 65 | |
2. | Canon SX20 | 1/2.3 | 12.0 | 4000 | 3000 | 720/30p | 19.2 | 10.5 | 225 | 37 | |
3. | Canon G5 X | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 21.4 | 12.3 | 471 | 62 | |
4. | Canon G5 X Mark II | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.2 | 12.4 | 583 | 65 | |
5. | Canon G7 X | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 23.0 | 12.7 | 556 | 71 | |
6. | Canon G7 X Mark II | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 21.8 | 11.9 | 260 | 62 | |
7. | Canon SX1 | 1/2.3 | 10.0 | 3648 | 2736 | 1080/30p | 19.0 | 10.3 | 144 | 35 | |
8. | Canon SX10 | 1/2.3 | 10.0 | 3648 | 2736 | 480/30p | 19.0 | 10.3 | 144 | 35 | |
9. | Canon SX30 | 1/2.3 | 14.0 | 4320 | 3240 | 720/30p | 19.4 | 10.7 | 320 | 39 | |
10. | Canon SX40 | 1/2.3 | 12.0 | 4000 | 3000 | 1080/24p | 19.6 | 10.9 | 409 | 41 | |
11. | Canon SX50 | 1/2.3 | 12.0 | 4000 | 3000 | 1080/24p | 20.3 | 11.2 | 179 | 47 | |
12. | Canon SX740 | 1/2.3 | 20.2 | 5184 | 3888 | 4K/30p | 20.6 | 12.1 | 1050 | 51 | |
13. | Leica C-LUX | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.1 | 12.3 | 481 | 64 | |
14. | Panasonic FZ1000 II | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.1 | 12.4 | 546 | 65 | |
15. | Panasonic ZS200 | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.0 | 12.2 | 449 | 64 | |
16. | Sony RX100 VI | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.1 | 12.3 | 478 | 64 | |
17. | Sony ZV-1 | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.2 | 12.6 | 669 | 66 | |
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 also of capturing video footage. 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 SX20. It can shoot video footage at 4K/30p, while the SX20 is limited to 720/30p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a range of features. For example, the SX20 has an electronic viewfinder (202k 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 Canon SX20 in connection with corresponding information for a sample of similar cameras.
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 III | none | n | 3.0 / 1040 | tilting | Y | 1/2000s | 30/s | Y | Y | |
2. | Canon SX20 | 202 | n | 2.5 / 230 | swivel | n | 1/3200s | 0.7/s | Y | Y | |
3. | Canon G5 X | 2360 | n | 3.0 / 1040 | swivel | Y | 1/2000s | 5.9/s | Y | Y | |
4. | Canon G5 X Mark II | 2360 | n | 3.0 / 1040 | tilting | Y | 1/2000s | 30/s | Y | Y | |
5. | Canon G7 X | none | n | 3.0 / 1040 | tilting | Y | 1/2000s | 6.5/s | Y | Y | |
6. | Canon G7 X Mark II | none | n | 3.0 / 1040 | tilting | Y | 1/2000s | 8.0/s | Y | Y | |
7. | Canon SX1 | 202 | n | 2.8 / 230 | swivel | n | 1/3200s | 4.0/s | Y | Y | |
8. | Canon SX10 | 202 | n | 2.5 / 230 | swivel | n | 1/3200s | 0.7/s | Y | Y | |
9. | Canon SX30 | 202 | n | 2.7 / 230 | swivel | n | 1/3200s | 0.6/s | Y | Y | |
10. | Canon SX40 | 202 | n | 2.7 / 230 | swivel | n | 1/3200s | 10.3/s | Y | Y | |
11. | Canon SX50 | 202 | n | 3.0 / 461 | swivel | n | 1/2000s | 2.2/s | Y | Y | |
12. | Canon SX740 | none | n | 3.0 / 922 | tilting | n | 1/3200s | 10.0/s | Y | Y | |
13. | Leica C-LUX | 2330 | n | 3.0 / 1240 | fixed | Y | 1/2000s | 10.0/s | Y | Y | |
14. | Panasonic FZ1000 II | 2360 | n | 3.0 / 1240 | swivel | Y | 1/4000s | 12.0/s | Y | Y | |
15. | Panasonic ZS200 | 2330 | n | 3.0 / 1240 | fixed | Y | 1/2000s | 10.0/s | Y | Y | |
16. | Sony RX100 VI | 2359 | n | 3.0 / 1229 | tilting | Y | 1/2000s | 24.0/s | Y | Y | |
17. | Sony ZV-1 | none | n | 3.0 / 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 SX20 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 SX20 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 G7X Mark III and the SX20 have zoom lenses built in. The G7X Mark III has a 24-100mm f/1.8-2.8 optic and the SX20 offers a 28-560mm f/2.8-5.7 (focal lengths in full frame equivalent terms). Hence, the G7X Mark III provides a wider angle of view at the short end than the SX20, but less tele-photo reach at the long end. The G7X Mark III offers the faster maximum aperture.
The G7X Mark III writes its imaging data to SDXC cards, while the SX20 uses SDHC cards. The G7X Mark III supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the SX20 cannot take advantage of Ultra High Speed SD cards.
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 Canon PowerShot SX20 IS and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
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 / mono | Y | - | micro | 3.1 | Y | - | Y | |
2. | Canon SX20 | Y | stereo / mono | - | - | YES | 2.0 | - | - | - | |
3. | Canon G5 X | Y | stereo / mono | - | - | mini | 2.0 | Y | Y | - | |
4. | Canon G5 X Mark II | - | stereo / mono | - | - | micro | 3.1 | Y | - | Y | |
5. | Canon G7 X | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
6. | Canon G7 X Mark II | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
7. | Canon SX1 | Y | stereo / mono | - | - | YES | 2.0 | - | - | - | |
8. | Canon SX10 | Y | stereo / mono | - | - | - | 2.0 | - | - | - | |
9. | Canon SX30 | Y | stereo / mono | - | - | YES | 2.0 | - | - | - | |
10. | Canon SX40 | Y | stereo / mono | - | - | YES | 2.0 | - | - | - | |
11. | Canon SX50 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
12. | Canon SX740 | - | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
13. | Leica C-LUX | - | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
14. | Panasonic FZ1000 II | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
15. | Panasonic ZS200 | - | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
16. | Sony RX100 VI | - | stereo / mono | - | - | micro | 2.0 | Y | Y | Y | |
17. | Sony ZV-1 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y |
It is notable that the G7X Mark III has a microphone port, which is missing on the SX20. 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 SX20 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the SX20 was succeeded by the Canon SX30. Further information on the features and operation of the G7X Mark III and SX20 can be found, respectively, in the Canon G7 X Mark III Manual (free pdf) or the online Canon SX20 Manual.
Review summary
So what is the bottom line? Which of the two cameras – the Canon G7 X Mark III or the Canon SX20 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon PowerShot G7 X Mark III:
- More detail: Offers more megapixels (20 vs 12MP) with a 32% higher linear resolution.
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- 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 jpgs: Has a more modern image processing engine (DIGIC 8 vs DIGIC 4).
- Better video: Provides higher definition movie capture (4K/30p vs 720/30p).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
- 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 0.7 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.
- Better light gathering: Has a lens with a wider maximum aperture (f/1.8 vs f/2.8).
- Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
- More compact: Is smaller (105x61mm vs 123x88mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 296g or 49 percent) and hence easier to carry around.
- 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 9 years and 10 months of technical progress since the SX20 launch.
Advantages of the Canon PowerShot SX20 IS:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/3200s vs 1/2000s) to freeze action.
- More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More affordable: Was introduced into a lower priced category (47 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in August 2009).
If the count of relative strengths (bullet points above) is taken as a measure, the G7X Mark III is the clear winner of the match-up (26 : 8 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Canon G7 X Mark III and the Canon SX20 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Superzoom 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 says little about, for example, the shooting experience and imaging performance of the G7X Mark III and the SX20 in practical situations. 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 expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
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 | .. | + + | 4/5 | 81/100 | 4/5 | .. | Jul 2019 | 749 | amazon.com | |
2. | Canon SX20 | .. | + + | .. | 73/100 | .. | 4/5 | Aug 2009 | 399 | ebay.com | |
3. | Canon G5 X | 5/5 | + + | .. | 78/100 | 4.5/5 | 4.5/5 | Oct 2015 | 799 | ebay.com | |
4. | Canon G5 X Mark II | 4/5 | + | 4/5 | 82/100 | .. | 4/5 | Jul 2019 | 899 | ebay.com | |
5. | Canon G7 X | 4/5 | + + | .. | 77/100 | 4.5/5 | 4.5/5 | Sep 2014 | 699 | ebay.com | |
6. | Canon G7 X Mark II | 4.5/5 | + + | .. | 81/100 | 4.5/5 | 4.5/5 | Feb 2016 | 699 | ebay.com | |
7. | Canon SX1 | .. | + + | .. | + | .. | 3.5/5 | Sep 2008 | 599 | ebay.com | |
8. | Canon SX10 | .. | + + | .. | .. | .. | 4/5 | Sep 2008 | 399 | ebay.com | |
9. | Canon SX30 | 3/5 | + + | .. | .. | 3.5/5 | 4/5 | Sep 2010 | 429 | ebay.com | |
10. | Canon SX40 | .. | + | .. | .. | 4.5/5 | 4/5 | Sep 2011 | 429 | ebay.com | |
11. | Canon SX50 | 3/5 | + + | .. | 72/100 | 4.5/5 | 4.5/5 | Sep 2012 | 429 | ebay.com | |
12. | Canon SX740 | .. | + | 3.5/5 | .. | 4/5 | 4/5 | Jul 2018 | 399 | amazon.com | |
13. | Leica C-LUX | .. | .. | 3.5/5 | .. | 4.5/5 | 4/5 | Jun 2018 | 1,049 | ebay.com | |
14. | Panasonic FZ1000 II | .. | .. | .. | 83/100 | 4.5/5 | 4.5/5 | Feb 2019 | 899 | amazon.com | |
15. | Panasonic ZS200 | .. | + + | 4.5/5 | 81/100 | 4.5/5 | 4.5/5 | Feb 2018 | 799 | amazon.com | |
16. | Sony RX100 VI | 4.5/5 | + + | .. | 83/100 | 4/5 | 4.5/5 | Jun 2018 | 1,199 | ebay.com | |
17. | Sony ZV-1 | 4/5 | + | 4/5 | 85/100 | 4/5 | 4.5/5 | May 2020 | 799 | ebay.com | |
Note: (+ +) 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. 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. Also, please note that some of the review sites have changed their methodology and reporting over time.
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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 800D vs Canon G7 X Mark III
- Canon G7 X Mark III vs Contax N Digital
- Canon G7 X Mark III vs Leica M10-P
- Canon G7 X Mark III vs Panasonic G10
- Canon G7 X Mark III vs Panasonic ZS100
- Canon G7 X Mark III vs Sony A7S III
- Canon R7 vs Canon SX20
- Canon SX20 vs Canon SX730
- Canon SX20 vs Panasonic LX100 II
- Canon SX20 vs Pentax K-70
- Canon SX20 vs Sony A6600
- Canon SX20 vs Sony A7 III
Specifications: Canon G7 X Mark III vs Canon SX20
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 Model | Canon G7 X Mark III | Canon SX20 |
---|---|---|
Camera Type | Fixed lens compact camera | Fixed lens compact camera |
Camera Lens | 24-100mm f/1.8-2.8 | 28-560mm f/2.8-5.7 |
Launch Date | July 2019 | August 2009 |
Launch Price | USD 749 | USD 399 |
Sensor Specs | Canon G7 X Mark III | Canon SX20 |
Sensor Technology | BSI-CMOS | CCD |
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 | no AA filter |
Movie Capability | 4K/30p Video | 720/30p Video |
ISO Setting | 125 - 12,800 ISO | 100 - 3,200 ISO |
ISO Boost | 125 - 25,600 ISO | no Enhancement |
Image Processor | DIGIC 8 | DIGIC 4 |
Screen Specs | Canon G7 X Mark III | Canon SX20 |
Viewfinder Type | no viewfinder | Electronic viewfinder |
Viewfinder Field of View | 100% | |
Viewfinder Resolution | 202k dots | |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 2.5inch |
LCD Resolution | 1040k dots | 230k dots |
LCD Attachment | Tilting screen | Swivel screen |
Touch Input | Touchscreen | no Touchscreen |
Shooting Specs | Canon G7 X Mark III | Canon SX20 |
Focus System | Contrast-detect AF | Contrast-detect AF |
Manual Focusing Aid | Focus Peaking | no Peaking Feature |
Continuous Shooting | 30 shutter flaps/s | 0.7 shutter flaps/s |
Electronic Shutter | up to 1/25600s | no E-Shutter |
Time-Lapse Photography | Intervalometer built-in | no Intervalometer |
Fill Flash | Built-in Flash | Built-in Flash |
Storage Medium | SDXC cards | SDHC 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 | Canon SX20 |
External Flash | no Hotshoe | Hotshoe |
USB Connector | USB 3.1 | USB 2.0 |
HDMI Port | micro HDMI | YES 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 | Canon SX20 |
Battery Type | Canon NB-13L | Canon 4xAA |
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) |
123 x 88 x 87 mm (4.8 x 3.5 x 3.4 in) |
Camera Weight | 304 g (10.7 oz) | 600 g (21.2 oz) |
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