PW

Canon G5 X versus Canon M3

The Canon PowerShot G5 X and the Canon EOS M3 are two digital cameras that were announced, respectively, in October 2015 and February 2015. The G5X is a fixed lens compact, while the EOS M3 is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (G5X) and an APS-C sensor. The G5X has a resolution of 20 megapixel, whereas the EOS M3 provides 24 MP.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon G5 X and the Canon M3. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the G5X – represents the basis for the calculations across all the size and weight measures).

Canon G5 X vs Canon M3 front
G5X versus EOS M3 top view
G5X and EOS M3 rear side
Body view (G5X on the left)

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon M3 is notably smaller (11 percent) than the Canon G5 X. Cameras that are aimed at professionals or semi-pros tend to be a bit bulkier in order to give them the necessary environmental and shock resistance. In this context, it is worth noting that neither the G5X nor the EOS M3 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G5X has a lens build in, whereas the EOS M3 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon G5 X (⇒ rgt) 112 mm 76 mm 44 mm 353 g 210 no 2015 799 latest check
Canon M3 (⇒ lft) 111 mm 68 mm 44 mm 366 g 250 no 2015 679discont. check
Canon M6 (⇒ lft | rgt) 112 mm 68 mm 45 mm 390 g 295 no 2017 779 latest check
Canon M5 (⇒ lft | rgt) 116 mm 89 mm 61 mm 427 g 295 no 2016 979 latest check
Canon G7 X Mark II (⇒ lft | rgt) 106 mm 61 mm 42 mm 319 g 265 no 2016 699 latest check
Canon G9 X (⇒ lft | rgt) 98 mm 58 mm 31 mm 209 g 220 no 2015 529discont. check
Canon 750D (⇒ lft | rgt) 132 mm 101 mm 78 mm 555 g 440 no 2015 749discont. check
Canon 760D (⇒ lft | rgt) 132 mm 101 mm 78 mm 565 g 440 no 2015 849discont. check
Canon M10 (⇒ lft | rgt) 108 mm 67 mm 35 mm 301 g 255 no 2015 499discont. check
Canon G1 X Mark II (⇒ lft | rgt) 116 mm 74 mm 66 mm 553 g 240 no 2014 799 latest check
Canon G7 X (⇒ lft | rgt) 103 mm 60 mm 40 mm 304 g 210 no 2014 699discont. check
Panasonic FZ1000 (⇒ lft | rgt) 137 mm 99 mm 131 mm 831 g 360 no 2014 899discont. check
Sony RX100 IV (⇒ lft | rgt) 102 mm 58 mm 41 mm 298 g 280 no 2015 999discont. check
Sony RX100 III (⇒ lft | rgt) 102 mm 58 mm 41 mm 290 g 320 no 2014 799discont. check

The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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 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. 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 are more costly to manufacture and tent to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon G5 X features an one-inch sensor and the Canon M3 an APS-C sensor. The sensor area in the EOS M3 is 186 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon G5 X and Canon M3 sensor measures
Sensor size

With 24MP, the EOS M3 offers a higher resolution than the G5X (20MP), but the EOS M3 nevertheless has larger individual pixels (pixel pitch of 3.72μm versus 2.41μm for the G5X) due to its larger sensor. However, the G5X is a somewhat more recent model (by 8 months) than the EOS M3, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.

G5X versus EOS M3 MP
Sensor resolution

Consistent information on actual sensor performance is available from DXO Mark for most cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon G5 X (⇒ rgt) 1-inch 20.0 5472 3648 1080/60p - - - -
Canon M3 (⇒ lft) APS-C 24.0 6000 4000 1080/30p 22.8 11.8 1169 72
Canon M6 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon M5 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.4 12.4 1262 77
Canon G7 X Mark II (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p - - - -
Canon G9 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 21.5 12.3 495 63
Canon 750D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 22.7 12.0 919 71
Canon 760D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/30p 22.6 12.0 915 70
Canon M10 (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.2 11.4 753 65
Canon G1 X Mark II (⇒ lft | rgt) 1.5-inch 13.0 4160 3120 1080/30p 21.5 10.8 581 58
Canon G7 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 23.0 12.7 556 71
Panasonic FZ1000 (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.1 11.7 517 64
Sony RX100 IV (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.8 12.6 591 70
Sony RX100 III (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 22.4 12.3 495 67

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 G5X provides a higher frame rate than the EOS M3. It can shoot video footage at 1080/60p, while the EOS M3 is limited to 1080/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the G5X has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the EOS M3 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon G5 X, the Canon M3, and comparable cameras. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Canon G5 X (⇒ rgt) 2360 no 3.0 1040 swivel YES 2000 5.9 7 no
Canon M3 (⇒ lft) no no 3.0 1040 tilting YES 4000 4.2 5 no
Canon M6 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 9.0 5 no
Canon M5 (⇒ lft | rgt) 2360 no 3.2 1620 tilting YES 4000 9.0 5 no
Canon G7 X Mark II (⇒ lft | rgt) no no 3.0 1040 tilting YES 2000 8.0 7 no
Canon G9 X (⇒ lft | rgt) no no 3.0 1040 fixed YES 2000 6.0 6 no
Canon 750D (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 12 no
Canon 760D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 4000 5.0 12 no
Canon M10 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 4.6 5 no
Canon G1 X Mark II (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 5.2 6.8 no
Canon G7 X (⇒ lft | rgt) no no 3.0 1040 tilting YES 2000 6.5 7 no
Panasonic FZ1000 (⇒ lft | rgt) 2359 no 3.0 921 swivel no 4000 12.0 13.5 no
Sony RX100 IV (⇒ lft | rgt) 2359 no 3.0 1228 tilting no 2000 16.0 10.2 no
Sony RX100 III (⇒ lft | rgt) 1440 no 3.0 1229 tilting no 2000 10.0 YES no

The G5X is a current model that online retailers, such as amazon, will have in stock. In contrast, the EOS M3 has been discontinued (but it can be found pre-owned on ebay). As a replacement in the same line of cameras, the EOS M3 was succeeded by the Canon M6.

Summary

So how do things add up? Is the Canon G5 X better than the Canon M3 or vice versa? The listing below highlights the relative strengths of the two models.


Reasons to prefer the Canon PowerShot G5 X:

  • Better video: Provides higher movie framerates (1080/60p vs 1080/30p).
  • Easier framing: Has an electronic viewfinder for image framing and settings control.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster burst: Shoots at higher frequency (5.9 vs 4.2 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Has a lens build-in, whereas the EOS M3 requires a separate lens.
  • Less heavy: Is lighter even though it comes with a build-in lens (unlike the EOS M3).
  • More modern: Is somewhat more recent (announced 8 months after the EOS M3).

Arguments in favor of the Canon EOS M3:

  • More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
  • Better low-light imaging: Features bigger pixels on a larger sensor for better high-ISO images.
  • Faster shutter: Has a higher mechanical shutter speed (4000/sec vs 2000/sec) to freeze action.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • More compact: Is smaller (111x68mm vs 112x76mm) and will fit more readily into a bag.
  • Longer lasting: Gets more shots (250 versus 210) out of a single battery charge.
  • More heavily discounted: Has been on the market for longer (launched in October 2015).

If the count of individual advantages (bullet points above) is taken as a guide, the match-up finishes in a tie (7 points each). 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.

G5X 07:07 EOS M3

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 handling experience and imaging performance when actually working with the G5X or the EOS M3. 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. This is where reviews by experts come in. The following table reports the overall rankings of the cameras as published by some of the major camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.

Review scores
Camera camera
labs
dp
review
ephoto
zine
imaging
resource
photography
blog
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon G5 X (⇒ rgt) HiRec 78/100 Silver 4.5/5 4/5 4.5/5 2015 799 latest check
Canon M3 (⇒ lft) reviewed 75/100 4.5/5 4.5/5 4/5 2015 679discont. check
Canon M6 (⇒ lft | rgt) - 80/100 Silver 4/5 4.5/5 4/5 2017 779 latest check
Canon M5 (⇒ lft | rgt) Rec 82/100 Silver 4/5 4.5/5 4/5 2016 979 latest check
Canon G7 X Mark II (⇒ lft | rgt) HiRec 81/100 Silver 4.5/5 4/5 4.5/5 2016 699 latest check
Canon G9 X (⇒ lft | rgt) HiRec - 4.5/5 4/5 4.5/5 2015 529discont. check
Canon 750D (⇒ lft | rgt) - 75/100 4.5/5 4.5/5 4.5/5 2015 749discont. check
Canon 760D (⇒ lft | rgt) Rec 77/100 Silver 4.5/5 4.5/5 4.5/5 2015 849discont. check
Canon M10 (⇒ lft | rgt) - - - reviewed 4/5 2015 499discont. check
Canon G1 X Mark II (⇒ lft | rgt) Rec 77/100 Silver 4/5 4/5 4.5/5 2014 799 latest check
Canon G7 X (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 3.5/5 4.5/5 2014 699discont. check
Panasonic FZ1000 (⇒ lft | rgt) HiRec 82/100 Gold 4.5/5 4.5/5 4.5/5 2014 899discont. check
Sony RX100 IV (⇒ lft | rgt) HiRec 85/100 Gold 4/5 4.5/5 4.5/5 2015 999discont. check
Sony RX100 III (⇒ lft | rgt) HiRec 82/100 Gold 4.5/5 4.5/5 5/5 2014 799discont. check

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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Other comparisons

In case you are interested in seeing how other cameras pair up, just use the search menu below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If you cannot find the camera you are interested in, kindly get in touch, and I will try to locate and add the respective data to the application.

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