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Canon G1 X Mark III versus Canon G5 X

The Canon PowerShot G1 X Mark III and the Canon PowerShot G5 X are two digital cameras that were announced, respectively, in October 2017 and October 2015. Both the G1X Mark III and the G5X are fixed lens compact cameras that are based on an APS-C (G1X Mark III) and an one-inch sensor. The G1X Mark III has a resolution of 24 megapixel, whereas the G5X provides 20 MP.

Body comparison

The physical size and weight of the Canon G1 X Mark III and the Canon G5 X are illustrated in the side-by-side display below. 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 toggle the display 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 – the G1X Mark III – represents 100 percent across all the size and weight measures).

Canon G1 X Mark III vs Canon G5 X front
G1X Mark III versus G5X top view
G1X Mark III and G5X rear side
Body view (G1X Mark III 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 G5 X is somewhat smaller (5 percent) than the Canon G1 X Mark III. Moreover, the G5X is markedly lighter (12 percent) than the G1X Mark III. It is worth mentioning in this context that the G1X Mark III is splash and dust resistant, while the G5X does not feature any corresponding weather-sealing.

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 G1 X Mark III (⇒ rgt) 115 mm 78 mm 51 mm 399 g 200 YES 2017 1,299 latest check
Canon G5 X (⇒ lft) 112 mm 76 mm 44 mm 353 g 210 no 2015 799 latest check
Canon G9 X Mark II (⇒ lft | rgt) 98 mm 58 mm 31 mm 206 g 235 no 2017 529 latest check
Canon 6D Mark II (⇒ lft | rgt) 144 mm 111 mm 75 mm 765 g 1200 YES 2017 1,999 latest check
Canon 80D (⇒ lft | rgt) 139 mm 105 mm 79 mm 730 g 960 YES 2016 1,199 latest check
Canon 1D X Mark II (⇒ lft | rgt) 158 mm 168 mm 83 mm 1530 g 1210 YES 2016 5,999 latest check
Canon G7 X Mark II (⇒ lft | rgt) 106 mm 61 mm 42 mm 319 g 265 no 2016 699 latest check
Canon M3 (⇒ lft | rgt) 111 mm 68 mm 44 mm 366 g 250 no 2015 679discont. check
Canon T6i (⇒ lft | rgt) 132 mm 101 mm 78 mm 555 g 440 no 2015 749discont. check
Canon T6s (⇒ lft | rgt) 132 mm 101 mm 78 mm 565 g 440 no 2015 849discont. check
Canon G7 X (⇒ lft | rgt) 103 mm 60 mm 40 mm 304 g 210 no 2014 699discont. check
Fujifilm X100F (⇒ lft | rgt) 127 mm 75 mm 52 mm 469 g 390 no 2017 1,299 latest check
Nikon D7500 (⇒ lft | rgt) 136 mm 104 mm 73 mm 720 g 950 YES 2017 1,299 latest check
Panasonic FZ2500 (⇒ lft | rgt) 138 mm 102 mm 135 mm 915 g 350 no 2016 1,199 latest check
Sony RX10 IV (⇒ lft | rgt) 133 mm 94 mm 145 mm 1095 g 400 YES 2017 1,699 latest check
Sony RX10 III (⇒ lft | rgt) 133 mm 94 mm 127 mm 1051 g 420 YES 2016 1,499discont. check

The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G5X was launched at a markedly lower price (by 38 percent) than the G1X 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. 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon G1 X Mark III features an APS-C sensor and the Canon G5 X an one-inch sensor. The sensor area in the G5X is 65 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon G1 X Mark III and Canon G5 X sensor measures
Sensor size
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Sensor size

With 24MP, the G1X Mark III offers a higher resolution than the G5X (20MP), but the G1X Mark III nevertheless has larger individual pixels (pixel pitch of 3.72μm versus 2.41μm for the G5X) due to its larger sensor. Moreover, the G1X Mark III is a somewhat more recent model (by 2 years) than the G5X, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

G1X Mark III versus G5X MP
Sensor resolution
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Sensor resolution

Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon G1 X Mark III (⇒ rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon G5 X (⇒ lft) 1-inch 20.0 5472 3648 1080/60p - - - -
Canon G9 X Mark II (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 21.9 12.5 522 65
Canon 6D Mark II (⇒ lft | rgt) Full Frame 26.0 6240 4160 1080/60p 24.4 11.9 2862 85
Canon 80D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.6 13.2 1135 79
Canon 1D X Mark II (⇒ lft | rgt) Full Frame 20.0 5472 3648 4K/60p 24.1 13.5 3207 88
Canon G7 X Mark II (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p - - - -
Canon M3 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/30p 22.8 11.8 1169 72
Canon T6i (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 22.7 12.0 919 71
Canon T6s (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/30p 22.6 12.0 915 70
Canon G7 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 23.0 12.7 556 71
Fujifilm X100F (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p - - - -
Nikon D7500 (⇒ lft | rgt) APS-C 20.7 5568 3712 4K/30p 24.8 13.9 1192 86
Panasonic FZ2500 (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p .. .. .. ..
Sony RX10 IV (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p .. .. .. ..
Sony RX10 III (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 23.1 12.6 472 70

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, and both provide the same movie specifications (1080/60p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The G1X Mark III and the G5X are similar in the sense that both feature an electronic viewfinder, which is helpful when framing images in bright sunlight. Moreover, their viewfinders offer an identical resolution of 2360k dots. The table below summarizes some of the other core capabilities of the Canon G1 X Mark III and Canon G5 X in connection with corresponding information for a sample of similar cameras. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.

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 G1 X Mark III (⇒ rgt) 2360 no 3.0 1040 swivel YES 2000 9.0 9 no
Canon G5 X (⇒ lft) 2360 no 3.0 1040 swivel YES 2000 5.9 7 no
Canon G9 X Mark II (⇒ lft | rgt) no no 3.0 1040 fixed YES 2000 8.2 6 no
Canon 6D Mark II (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 4000 6.5 no no
Canon 80D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 8000 7.0 12 no
Canon 1D X Mark II (⇒ lft | rgt) optical YES 3.2 1620 fixed YES 8000 16.0 no no
Canon G7 X Mark II (⇒ lft | rgt) no no 3.0 1040 tilting YES 2000 8.0 7 no
Canon M3 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 4.2 5 no
Canon T6i (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 12 no
Canon T6s (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 4000 5.0 12 no
Canon G7 X (⇒ lft | rgt) no no 3.0 1040 tilting YES 2000 6.5 7 no
Fujifilm X100F (⇒ lft | rgt) 2360 no 3.0 1040 fixed no 4000 8.0 4.6 no
Nikon D7500 (⇒ lft | rgt) optical YES 3.2 922 tilting YES 8000 8.0 12 no
Panasonic FZ2500 (⇒ lft | rgt) 2360 no 3.0 1040 swivel YES 4000 12.0 13.2 no
Sony RX10 IV (⇒ lft | rgt) 2359 YES 3.0 1440 tilting YES 2000 24.0 10.8 no
Sony RX10 III (⇒ lft | rgt) 2359 YES 3.0 1229 tilting no 2000 14.0 10.8 no

Both the G1X Mark III and the G5X have zoom lenses build in. The G1X Mark III has a 24-72mm f/2.8-5.6 optic and the G5X offers a 24-100mm f/1.8-2.8 (focal lengths in full frame equivalent terms). Hence, the G1X Mark III and G5X provide the same view at the wide-angle end, but the G5X has more tele-photo reach at the long end. The G5X offers the faster maximum aperture.

Both the G1X Mark III and the G5X are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The G1X Mark III replaced the earlier Canon G1 X Mark II, while the G5X does not have a direct predecessor.

Summary

So what is the bottom line? Which of the two cameras – the Canon G1 X Mark III or the Canon G5 X – has the upper hand? The listing below highlights the relative strengths of the two models.


Arguments in favor of the Canon PowerShot G1 X Mark III:

  • More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
  • Better image quality: Features a larger and more technologically advanced imaging sensor.
  • Faster burst: Shoots at higher frequency (9 vs 5.9 flaps/sec) to capture the decisive moment.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • More modern: Reflects 2 years of technical progress since the G5X launch.

Advantages of the Canon PowerShot G5 X:

  • Better light gathering: Has a lens with a wider maximum aperture (f/1.8 vs f/2.8).
  • More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
  • Less heavy: Has a lower weight (by 46g or 12 percent) and is thus easier to take along.
  • More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in October 2015).

If the count of relative strengths (bullet points above) is taken as a measure, the match-up finishes in a tie (5 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.

G1X Mark III 05:05 G5X

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the G1X Mark III or the G5X handle or perform in practice. 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 G1 X Mark III (⇒ rgt) .. .. 4.5/5 .. .. 2017 1,299 latest check
Canon G5 X (⇒ lft) HiRec 78/100 Silver 4.5/5 4/5 4.5/5 2015 799 latest check
Canon G9 X Mark II (⇒ lft | rgt) .. .. 4.5/5 4.5/5 4.5/5 2017 529 latest check
Canon 6D Mark II (⇒ lft | rgt) Rec 80/100 4.5/5 4/5 4/5 2017 1,999 latest check
Canon 80D (⇒ lft | rgt) HiRec 84/100 Silver 4.5/5 4.5/5 4.5/5 2016 1,199 latest check
Canon 1D X Mark II (⇒ lft | rgt) - 89/100 Gold 4.5/5 5/5 4.5/5 2016 5,999 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 M3 (⇒ lft | rgt) reviewed 75/100 4.5/5 4.5/5 4/5 2015 679discont. check
Canon T6i (⇒ lft | rgt) - 75/100 4.5/5 4.5/5 4.5/5 2015 749discont. check
Canon T6s (⇒ lft | rgt) Rec 77/100 Silver 4.5/5 4.5/5 4.5/5 2015 849discont. check
Canon G7 X (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 3.5/5 4.5/5 2014 699discont. check
Fujifilm X100F (⇒ lft | rgt) Rec 83/100 Gold 4.5/5 .. 4.5/5 2017 1,299 latest check
Nikon D7500 (⇒ lft | rgt) HiRec 86/100 Silver 5/5 4.5/5 4.5/5 2017 1,299 latest check
Panasonic FZ2500 (⇒ lft | rgt) Rec 82/100 Silver 4.5/5 4.5/5 5/5 2016 1,199 latest check
Sony RX10 IV (⇒ lft | rgt) Rec 84/100 Gold 4.5/5 .. .. 2017 1,699 latest check
Sony RX10 III (⇒ lft | rgt) Rec 84/100 Silver 4.5/5 4.5/5 4.5/5 2016 1,499discont. check

The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Other comparisons

In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. 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 add information on that model to the database.

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