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Canon G3 X vs R3

The Canon PowerShot G3 X and the Canon EOS R3 are two digital cameras that were announced, respectively, in June 2015 and September 2021. The G3X is a fixed lens compact, while the R3 is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (G3X) and a full frame (R3) sensor. The G3X has a resolution of 20 megapixels, whereas the R3 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 G3 X
versus
Canon R3
Canon G3 X   Canon R3
Fixed lens compact camera Mirrorless system camera
24-600mm f/2.8-5.6 Canon RF mount lenses
20 MP – 1" sensor 24 MP – Full Frame sensor
1080/60p Video 6K/60p Video
ISO 125-12,800 (125 - 25,600) ISO 100-51,200 (50 - 204,800)
Viewfinder optional Electronic viewfinder (5760k dots)
3.2" LCD – 1620k dots 3.2" LCD – 4150k dots
Tilting touchscreen Swivel touchscreen
5.9 shutter flaps per second 12 shutter flaps per second
Lens-based stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
300 shots per battery charge760 shots per battery charge
123 x 77 x 105 mm, 733 g 150 x 143 x 87 mm, 1015 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G3 X and the Canon EOS R3? 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 G3 X and the Canon R3. 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.

Size Canon G3 X vs Canon R3
Compare G3X versus R3 top
Comparison G3X or R3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon R3 is considerably larger (126 percent) than the Canon G3 X. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G3X has a lens built in, whereas the R3 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the G3X gets 300 shots out of its Canon NB-10L battery, while the R3 can take 760 images on a single charge of its Canon LP-E19 power pack. As can be seen in the images above, the R3 has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. The power pack in the R3 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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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 (USD)
Street
Price
1.
 
Canon G3 X 123 mm 77 mm 105 mm 733 g 300 Y Jun 2015 999ebay.com
2.
 
Canon R3 150 mm 143 mm 87 mm 1015 g 760 Y Sep 2021 5,999 amazon.com
3.
 
Canon 1D X Mark III 158 mm 168 mm 83 mm 1440 g 2850 Y Jan 2020 6,499 amazon.com
4.
 
Canon 70D 139 mm 104 mm 79 mm 755 g 920 Y Jul 2013 1,199ebay.com
5.
 
Canon 80D 139 mm 105 mm 79 mm 730 g 960 Y Feb 2016 1,199ebay.com
6.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
7.
 
Canon G9 X 98 mm 58 mm 31 mm 209 g 220 n Oct 2015 529ebay.com
8.
 
Canon R5 138 mm 98 mm 88 mm 738 g 320 Y Jul 2020 3,899 amazon.com
9.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 2,499 amazon.com
10.
 
Canon R6 Mark II 138 mm 98 mm 88 mm 670 g 450 Y Nov 2022 2,499 amazon.com
11.
 
Leica SL2-S 146 mm 107 mm 83 mm 931 g 510 Y Dec 2020 4,895 amazon.com
12.
 
Panasonic FZ1000 137 mm 99 mm 131 mm 831 g 360 n Jun 2014 899ebay.com
13.
 
Panasonic FZ2500 138 mm 102 mm 135 mm 915 g 350 n Sep 2016 1,199 amazon.com
14.
 
Sony RX10 129 mm 88 mm 102 mm 813 g 420 Y Oct 2013 1,299ebay.com
15.
 
Sony RX10 II 129 mm 88 mm 102 mm 813 g 400 Y Jun 2015 1,299ebay.com
16.
 
Sony RX10 III 133 mm 94 mm 127 mm 1051 g 420 Y Mar 2016 1,499ebay.com
17.
 
Sony RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

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. The G3X was launched at a lower price than the R3, despite having a lens built in. 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 size of the imaging sensor is a crucial determinant 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 tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon G3 X features an one-inch sensor and the Canon R3 a full frame sensor. The sensor area in the R3 is 645 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.

Technology-wise, the R3 uses a more advanced image processing engine (DIGIC X) than the G3X (DIGIC 6), with benefits for noise reduction, color accuracy, and processing speed.

Canon G3 X and Canon R3 sensor measures

With 24MP, the R3 offers a higher resolution than the G3X (20MP), but the R3 nevertheless has larger individual pixels (pixel pitch of 6.00μm versus 2.41μm for the G3X) due to its larger sensor. Moreover, the R3 is a much more recent model (by 6 years and 2 months) than the G3X, 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 R3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the R3 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon G3 X are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.

The R3 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon PowerShot G3 X 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 EOS R3 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the G3X is build around a BSI-CMOS sensor, while the R3 uses a Stacked 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.

G3X versus R3 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"). Of the two cameras under consideration, the R3 offers substantially better image quality than the G3X (overall score 33 points higher). The advantage is based on 3.6 bits higher color depth, 2.4 EV in additional dynamic range, and 3 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-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 G3 X 1-inch 20.0 5472 36481080/60p21.412.352163
2.
 
Canon R3 Full Frame 24.0 6000 40006K/60p25.014.7408696
3.
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p24.214.5324891
4.
 
Canon 70D APS-C 20.0 5472 36481080/30p22.511.692668
5.
 
Canon 80D APS-C 24.0 6000 40001080/60p23.613.2113579
6.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
7.
 
Canon G9 X 1-inch 20.0 5472 36481080/60p21.512.349563
8.
 
Canon R5 Full Frame 44.8 8192 54648K/30p25.314.6304295
9.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
10.
 
Canon R6 Mark II Full Frame 24.0 6000 40004k/60p25.414.6315496
11.
 
Leica SL2-S Full Frame 24.0 6000 40004K/60p25.214.1350495
12.
 
Panasonic FZ1000 1-inch 20.0 5472 36484K/30p22.111.751764
13.
 
Panasonic FZ2500 1-inch 20.0 5472 36484K/30p23.012.653870
14.
 
Sony RX10 1-inch 20.0 5472 36481080/60p22.912.647469
15.
 
Sony RX10 II 1-inch 20.0 5472 36484K/30p23.012.653170
16.
 
Sony RX10 III 1-inch 20.0 5472 36484K/30p23.112.647270
17.
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the R3 provides a better video resolution than the G3X. It can shoot movie footage at 6K/60p, while the G3X is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the R3 has an electronic viewfinder (5760k dots), which can be very helpful when shooting in bright sunlight. In contrast, the G3X relies on live view and the rear LCD for framing. That said, the G3X can be equipped with an optional viewfinder – the EVF-DC1. The adjacent table lists some of the other core features of the Canon G3 X and Canon R3 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 G3 Xoptional n3.2 / 1620 tilting Y 1/2000s 5.9/s Y Y
2.
 
Canon R35760 Y3.2 / 4150 swivel Y 1/8000s 12.0/s n Y
3.
 
Canon 1D X Mark IIIoptical Y3.2 / 2100 fixed Y 1/8000s 20.0/s n n
4.
 
Canon 70Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
5.
 
Canon 80Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
6.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
7.
 
Canon G9 Xnone n3.0 / 1040 fixed Y 1/2000s 6.0/s Y Y
8.
 
Canon R55760 Y3.2 / 2100 swivel Y 1/8000s 12.0/s n Y
9.
 
Canon R63690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
10.
 
Canon R6 Mark II3690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
11.
 
Leica SL2-S5760 Y3.2 / 2100 fixed Y 1/8000s 20.0/s n Y
12.
 
Panasonic FZ10002359 n3.0 / 921 swivel n 1/4000s 12.0/s Y Y
13.
 
Panasonic FZ25002360 n3.0 / 1040 swivel Y 1/4000s 12.0/s Y Y
14.
 
Sony RX101440 Y3.0 / 1229 tilting n 1/3200s 10.0/s Y Y
15.
 
Sony RX10 II2359 Y3.0 / 1229 tilting n 1/3200s 14.0/s Y Y
16.
 
Sony RX10 III2359 Y3.0 / 1229 tilting n 1/2000s 14.0/s Y Y
17.
 
Sony RX100 V2359 n3.0 / 1229 tilting n 1/2000s 24.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The G3X has one, while the R3 does not. While the built-in flash of the G3X is not very powerful, it can at times be useful as a fill-in light.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

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 R3 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 R3 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 G3X writes its imaging data to SDXC cards, while the R3 uses CFexpress (type B) or SDXC cards. The R3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the G3X only has one slot. The R3 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the G3X can use UHS-I cards (up to 104 MB/s).

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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 G3 X and Canon EOS R3 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 G3 XYstereo / monoYYmini2.0YY-
2.
 
Canon R3Ystereo / monoYYmicro3.2Y-Y
3.
 
Canon 1D X Mark IIIYmono / monoYYmini3.1Y-Y
4.
 
Canon 70DYstereo / monoY-mini2.0Y--
5.
 
Canon 80DYstereo / monoYYmini2.0YY-
6.
 
Canon G7 X-stereo / mono--micro2.0YY-
7.
 
Canon G9 X-stereo / mono--micro2.0YY-
8.
 
Canon R5Ymono / monoYYmicro3.2Y-Y
9.
 
Canon R6Ymono / monoYYmicro3.2Y-Y
10.
 
Canon R6 Mark IIYstereo / monoYYmicro3.2Y-Y
11.
 
Leica SL2-SYstereo / monoYYfull3.2Y-Y
12.
 
Panasonic FZ1000Ystereo / monoY-micro2.0YY-
13.
 
Panasonic FZ2500Ystereo / monoYYmicro2.0Y--
14.
 
Sony RX10Ystereo / monoYYmicro2.0YY-
15.
 
Sony RX10 IIYstereo / monoYYmicro2.0YY-
16.
 
Sony RX10 IIIYstereo / monoYYmicro2.0YY-
17.
 
Sony RX100 V-stereo / mono--micro2.0YY-

Studio photographers will appreciate that the Canon R3 (unlike the G3X) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The R3 is a recent model that features in the current product line-up of Canon. In contrast, the G3X has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the G3X from Canon. Further information on the features and operation of the G3X and R3 can be found, respectively, in the Canon G3 X Manual (free pdf) or the online Canon R3 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Canon G3 X or the Canon R3 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.


Arguments in favor of the Canon PowerShot G3 X:

  • Ready to shoot: Has a lens built-in, whereas the R3 requires a separate lens.
  • More compact: Is smaller (123x77mm vs 150x143mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the R3).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been available for much longer (launched in June 2015).


Advantages of the Canon EOS R3:

  • More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
  • Better image quality: Scores substantially higher (33 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.6 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (3 stops ISO advantage).
  • Better jpgs: Has a more modern image processing engine (DIGIC X vs DIGIC 6).
  • Better video: Provides higher definition movie capture (6K/60p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (4150k vs 1620k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 5.9 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.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Gets more shots (760 versus 300) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 6 years and 2 months of technical progress since the G3X launch.

If the count of individual advantages (bullet points above) is taken as a guide, the R3 is the clear winner of the contest (26 : 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 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.

G3X 07:26 R3

How about other alternatives? Do the specifications of the Canon G3 X and the Canon R3 place the cameras among the top in their class? Find out in the latest Best Superzoom 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 says little about, for example, the shooting experience and imaging performance of the G3X and the R3 in practical situations. 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 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.

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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 (USD)
Street
Price
1.
 
Canon G3 X3.5/5+....4.5/54/5 Jun 2015 999ebay.com
2.
 
Canon R35/5o4.5/5..5/54.5/5 Sep 2021 5,999 amazon.com
3.
 
Canon 1D X Mark III..+ +5/5..4.5/54/5 Jan 2020 6,499 amazon.com
4.
 
Canon 70D5/5+ +..83/1004.5/55/5 Jul 2013 1,199ebay.com
5.
 
Canon 80D4/5+ +4.5/584/1004.5/54.5/5 Feb 2016 1,199ebay.com
6.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
7.
 
Canon G9 X3.5/5+ +....4.5/54.5/5 Oct 2015 529ebay.com
8.
 
Canon R54.5/5+4/591/1004.5/54.5/5 Jul 2020 3,899 amazon.com
9.
 
Canon R65/5+ +4/590/1004.5/55/5 Jul 2020 2,499 amazon.com
10.
 
Canon R6 Mark II5/5+ +4.5/591/1004.5/55/5 Nov 2022 2,499 amazon.com
11.
 
Leica SL2-S4/5..4/5..4.5/54.5/5 Dec 2020 4,895 amazon.com
12.
 
Panasonic FZ10004/5+ +..82/1004.5/54.5/5 Jun 2014 899ebay.com
13.
 
Panasonic FZ2500..+..82/1004.5/55/5 Sep 2016 1,199 amazon.com
14.
 
Sony RX105/5+..80/1004.5/54.5/5 Oct 2013 1,299ebay.com
15.
 
Sony RX10 II5/5+ +..82/1004.5/54/5 Jun 2015 1,299ebay.com
16.
 
Sony RX10 III5/5+..84/1004.5/54.5/5 Mar 2016 1,499ebay.com
17.
 
Sony RX100 V4.5/5+ +..83/1004/54.5/5 Oct 2016 999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. 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 G3 X vs Canon R3

    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 G3 X Canon R3
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 24-600mm f/2.8-5.6 Canon RF mount lenses
    Launch Date June 2015 September 2021
    Launch Price USD 999 USD 5,999
    Sensor Specs Canon G3 X Canon R3
    Sensor Technology BSI-CMOS Stacked BSI-CMOS
    Sensor Format 1" Sensor Full Frame Sensor
    Sensor Size 13.2 x 8.8 mm 36.0 x 24.0 mm
    Sensor Area 116.16 mm2 864 mm2
    Sensor Diagonal 15.9 mm 43.3 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 6.00 μm
    Pixel Density 17.18 MP/cm2 2.78 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video 6K/60p Video
    ISO Setting 125 - 12,800 ISO 100 - 51,200 ISO
    ISO Boost 125 - 25,600 ISO 50 - 204,800 ISO
    Image Processor DIGIC 6 DIGIC X
    DXO Sensor Quality (score) 63 96
    DXO Color Depth (bits) 21.4 25
    DXO Dynamic Range (EV) 12.3 14.7
    DXO Low Light (ISO) 521 4086
    Screen Specs Canon G3 X Canon R3
    Viewfinder Type Viewfinder optional Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.76x
    Viewfinder Resolution 5760k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.2inch
    LCD Resolution 1620k dots 4150k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Canon G3 X Canon R3
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/8000s
    Continuous Shooting 5.9 shutter flaps/s 12 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/64000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens-based stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards CFexB or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-II
    Connectivity Specs Canon G3 X Canon R3
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.2
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Canon G3 X Canon R3
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Canon NB-10L Canon LP-E19
    Battery Life (CIPA)300 shots per charge760 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 123 x 77 x 105 mm
    (4.8 x 3.0 x 4.1 in)
    150 x 143 x 87 mm
    (5.9 x 5.6 x 3.4 in)
    Camera Weight 733 g (25.9 oz) 1015 g (35.8 oz)
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