Canon 5D Mark III vs G1X Mark III
The Canon EOS 5D Mark III and the Canon PowerShot G1 X Mark III are two digital cameras that were revealed to the public, respectively, in March 2012 and October 2017. The 5D Mark III is a DSLR, while the G1X Mark III is a fixed lens compact. The cameras are based on a full frame (5D Mark III) and an APS-C (G1X Mark III) sensor. The 5D Mark III has a resolution of 22.1 megapixels, whereas the G1X Mark III provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 5D Mark III and the Canon PowerShot G1 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.
Body comparison
The side-by-side display below illustrates the physical size and weight of the Canon 5D Mark III and the Canon G1 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 size dimensions are rounded to the nearest millimeter.



If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G1 X Mark III is considerably smaller (49 percent) than the Canon 5D Mark III. 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 G1X Mark III has a lens built in, whereas the 5D Mark III is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the 5D Mark III and their specifications in the Canon EF Lens Catalog.
Concerning battery life, the 5D Mark III gets 950 shots out of its LP-E6 battery, while the G1X Mark III can take 200 images on a single charge of its NB-13L power pack.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 5D Mark III | 152 mm | 116 mm | 76 mm | 950 g | 950 | Y | Mar 2012 | 3,499 | ebay.com | |
2. | Canon G1 X Mark III | 115 mm | 78 mm | 51 mm | 399 g | 200 | Y | Oct 2017 | 1,299 | amazon.com | |
3. | Canon 6D Mark II | 144 mm | 111 mm | 75 mm | 765 g | 1200 | Y | Jun 2017 | 1,999 | amazon.com | |
4. | Canon 1D X Mark II | 158 mm | 168 mm | 83 mm | 1530 g | 1210 | Y | Feb 2016 | 5,999 | ebay.com | |
5. | Canon 5D Mark IV | 151 mm | 116 mm | 76 mm | 890 g | 900 | Y | Aug 2016 | 3,499 | amazon.com | |
6. | Canon 80D | 139 mm | 105 mm | 79 mm | 730 g | 960 | Y | Feb 2016 | 1,199 | ebay.com | |
7. | Canon SX540 | 120 mm | 82 mm | 92 mm | 442 g | 205 | n | Jan 2016 | 399 | ebay.com | |
8. | Canon 5DS | 152 mm | 116 mm | 76 mm | 930 g | 700 | Y | Feb 2015 | 3,699 | amazon.com | |
9. | Canon 5DS R | 152 mm | 116 mm | 76 mm | 930 g | 700 | Y | Feb 2015 | 3,699 | amazon.com | |
10. | Canon 7D II | 149 mm | 112 mm | 78 mm | 910 g | 670 | Y | Sep 2014 | 1,799 | ebay.com | |
11. | Canon 70D | 139 mm | 104 mm | 79 mm | 755 g | 920 | Y | Jul 2013 | 1,199 | ebay.com | |
12. | Canon 6D | 145 mm | 111 mm | 71 mm | 770 g | 1090 | Y | Sep 2012 | 2,099 | ebay.com | |
13. | Canon 5D Mark II | 152 mm | 114 mm | 75 mm | 850 g | 850 | Y | Sep 2008 | 3,499 | ebay.com | |
14. | Canon 5D | 152 mm | 113 mm | 75 mm | 895 g | 400 | Y | Aug 2005 | 3,299 | ebay.com | |
15. | Fujifilm X100V | 128 mm | 75 mm | 53 mm | 478 g | 420 | Y | Feb 2020 | 1,399 | amazon.com | |
16. | Fujifilm X100F | 127 mm | 75 mm | 52 mm | 469 g | 390 | n | Jan 2017 | 1,299 | ebay.com | |
17. | Sony RX10 III | 133 mm | 94 mm | 127 mm | 1051 g | 420 | Y | Mar 2016 | 1,499 | 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 obviously take relative prices into account. 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 G1X Mark III was launched at a lower price than the 5D Mark III, 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.
Sensor comparison
The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 5D Mark III features a full frame sensor and the Canon G1 X Mark III an APS-C sensor. The sensor area in the G1X Mark III is 62 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the G1X Mark III uses a more advanced image processing engine (DIGIC 7) than the 5D Mark III (DIGIC 5+), with benefits for noise reduction, color accuracy, and processing speed.

Despite having a smaller sensor, the G1X Mark III offers a slightly higher resolution of 24 megapixels, compared with 22.1 MP of the 5D Mark III. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.72μm versus 6.25μm for the 5D Mark III). However, it should be noted that the G1X Mark III is much more recent (by 5 years and 7 months) than the 5D Mark III, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The G1X Mark III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS 5D Mark III has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-102400. The corresponding ISO settings for the Canon PowerShot G1 X Mark III are ISO 100 to ISO 25600 (no boost).
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 5D Mark III | Full Frame | 22.1 | 5760 | 3840 | 1080/30p | 24.0 | 11.7 | 2293 | 81 | |
2. | Canon G1 X Mark III | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.8 | 13.2 | 1649 | 81 | |
3. | Canon 6D Mark II | Full Frame | 26.0 | 6240 | 4160 | 1080/60p | 24.4 | 11.9 | 2862 | 85 | |
4. | Canon 1D X Mark II | Full Frame | 20.0 | 5472 | 3648 | 4K/60p | 24.1 | 13.5 | 3207 | 88 | |
5. | Canon 5D Mark IV | Full Frame | 30.1 | 6720 | 4480 | 4K/30p | 24.8 | 13.6 | 2995 | 91 | |
6. | Canon 80D | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.6 | 13.2 | 1135 | 79 | |
7. | Canon SX540 | 1/2.3 | 20.2 | 5184 | 3888 | 1080/60p | 20.3 | 11.7 | 806 | 48 | |
8. | Canon 5DS | Full Frame | 50.3 | 8688 | 5792 | 1080/30p | 24.7 | 12.4 | 2381 | 87 | |
9. | Canon 5DS R | Full Frame | 50.3 | 8688 | 5792 | 1080/30p | 24.6 | 12.4 | 2308 | 86 | |
10. | Canon 7D II | APS-C | 20.0 | 5472 | 3648 | 1080/60p | 22.4 | 11.8 | 1082 | 70 | |
11. | Canon 70D | APS-C | 20.0 | 5472 | 3648 | 1080/30p | 22.5 | 11.6 | 926 | 68 | |
12. | Canon 6D | Full Frame | 20.0 | 5472 | 3648 | 1080/30p | 23.8 | 12.1 | 2340 | 82 | |
13. | Canon 5D Mark II | Full Frame | 21.0 | 5616 | 3744 | 1080/30p | 23.7 | 11.9 | 1815 | 79 | |
14. | Canon 5D | Full Frame | 12.7 | 4368 | 2912 | none | 22.9 | 11.1 | 1368 | 71 | |
15. | Fujifilm X100V | APS-C | 26.0 | 6240 | 4160 | 4K/30p | 24.2 | 13.6 | 1996 | 84 | |
16. | Fujifilm X100F | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.9 | 13.2 | 1704 | 81 | |
17. | Sony RX10 III | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 23.1 | 12.6 | 472 | 70 | |
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 G1X Mark III provides a faster frame rate than the 5D Mark III. It can shoot movie footage at 1080/60p, while the 5D Mark III is limited to 1080/30p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a range of features. For example, the G1X Mark III has an electronic viewfinder (2360k dots), while the 5D Mark III has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The table below summarizes some of the other core capabilities of the Canon 5D Mark III and Canon G1 X Mark III 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 5D Mark III | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 6.0/s | n | n | |
2. | Canon G1 X Mark III | 2360 | n | 3.0 / 1040 | swivel | Y | 1/2000s | 9.0/s | Y | Y | |
3. | Canon 6D Mark II | optical | Y | 3.0 / 1040 | swivel | Y | 1/4000s | 6.5/s | n | n | |
4. | Canon 1D X Mark II | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 16.0/s | n | n | |
5. | Canon 5D Mark IV | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 7.0/s | n | n | |
6. | Canon 80D | optical | Y | 3.0 / 1040 | swivel | Y | 1/8000s | 7.0/s | Y | n | |
7. | Canon SX540 | none | n | 3.0 / 461 | fixed | n | 1/2000s | 5.9/s | Y | Y | |
8. | Canon 5DS | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 5.0/s | n | n | |
9. | Canon 5DS R | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 5.0/s | n | n | |
10. | Canon 7D II | optical | Y | 3.0 / 1040 | fixed | n | 1/8000s | 10.0/s | Y | n | |
11. | Canon 70D | optical | Y | 3.0 / 1040 | swivel | Y | 1/8000s | 7.0/s | Y | n | |
12. | Canon 6D | optical | Y | 3.0 / 1040 | fixed | n | 1/4000s | 4.5/s | n | n | |
13. | Canon 5D Mark II | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 3.9/s | n | n | |
14. | Canon 5D | optical | Y | 2.5 / 230 | fixed | n | 1/8000s | 3.0/s | n | n | |
15. | Fujifilm X100V | 3690 | n | 3.0 / 1620 | tilting | Y | 1/4000s | 11.0/s | Y | n | |
16. | Fujifilm X100F | 2360 | n | 3.0 / 1040 | fixed | n | 1/4000s | 8.0/s | Y | n | |
17. | Sony RX10 III | 2359 | Y | 3.0 / 1229 | tilting | n | 1/2000s | 14.0/s | Y | Y | |
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One feature that is present on the 5D Mark III, but is missing on the G1X Mark III is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
The G1X 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 5D Mark III does not have a selfie-screen.The Canon G1 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.
The 5D Mark III writes its imaging data to Compact Flash or SDXC cards, while the G1X Mark III uses SDXC cards. The 5D Mark III features dual card slots, which can be very useful in case a memory card fails. In contrast, the G1X Mark III only has one slot. The G1X Mark III supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 5D Mark III 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 EOS 5D Mark III and Canon PowerShot G1 X Mark III 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 5D Mark III | Y | mono / mono | Y | Y | mini | 2.0 | - | - | - | |
2. | Canon G1 X Mark III | Y | stereo / mono | - | - | micro | 2.0 | Y | Y | Y | |
3. | Canon 6D Mark II | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | Y | |
4. | Canon 1D X Mark II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
5. | Canon 5D Mark IV | Y | mono / mono | Y | Y | mini | 3.0 | Y | Y | - | |
6. | Canon 80D | Y | stereo / mono | Y | Y | mini | 2.0 | Y | Y | - | |
7. | Canon SX540 | - | stereo / mono | - | - | mini | 2.0 | Y | Y | - | |
8. | Canon 5DS | Y | mono / mono | Y | - | mini | 3.0 | - | - | - | |
9. | Canon 5DS R | Y | mono / mono | Y | - | mini | 3.0 | - | - | - | |
10. | Canon 7D II | Y | stereo / mono | Y | Y | mini | 3.0 | - | - | - | |
11. | Canon 70D | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
12. | Canon 6D | Y | mono / mono | Y | - | mini | 2.0 | Y | - | - | |
13. | Canon 5D Mark II | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
14. | Canon 5D | Y | - / - | - | - | - | 2.0 | - | - | - | |
15. | Fujifilm X100V | Y | stereo / mono | Y | - | micro | 3.1 | Y | - | Y | |
16. | Fujifilm X100F | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | - | |
17. | Sony RX10 III | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - |
It is notable that the 5D Mark III has a microphone port, which is missing on the G1X Mark III. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Studio photographers will appreciate that the Canon 5D Mark III (unlike the G1X Mark III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The G1X Mark III is a recent model that features in the current product line-up of Canon. In contrast, the 5D Mark III has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the 5D Mark III was succeeded by the Canon 5D Mark IV. Further information on the features and operation of the 5D Mark III and G1X Mark III can be found, respectively, in the Canon 5D Mark III Manual (free pdf) or the online Canon G1 X Mark III Manual.
Review summary
So what is the bottom line? Is there a clear favorite between the Canon 5D Mark III and the Canon G1 X Mark III? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon EOS 5D Mark III:
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (950 versus 200) on a single battery charge.
- 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.
- More heavily discounted: Has been available for much longer (launched in March 2012).
Arguments in favor of the Canon PowerShot G1 X Mark III:
- Better jpgs: Has a more modern image processing engine (DIGIC 7 vs DIGIC 5+).
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More framing info: Has an electronic viewfinder that displays shooting data.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or 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 (9 vs 6 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with an integrated lens, while the 5D Mark III requires a separate lens.
- More compact: Is smaller (115x78mm vs 152x116mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the 5D Mark III).
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- 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 affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 5 years and 7 months of technical progress since the 5D Mark III launch.
If the count of relative strengths (bullet points above) is taken as a measure, the G1X Mark III is the clear winner of the contest (20 : 11 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.
How about other alternatives? Do the specifications of the Canon 5D Mark III and the Canon G1 X Mark III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Travel-Zoom 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 remains incomplete and does no justice, for example, to the way the 5D Mark III or the G1X Mark III 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.
Expert reviews
This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major 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.

Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 5D Mark III | .. | + + | .. | 82/100 | 4.5/5 | 4.5/5 | Mar 2012 | 3,499 | ebay.com | |
2. | Canon G1 X Mark III | 5/5 | + | 4/5 | 79/100 | 4.5/5 | 4.5/5 | Oct 2017 | 1,299 | amazon.com | |
3. | Canon 6D Mark II | 4/5 | + | 4/5 | 80/100 | 4.5/5 | 4/5 | Jun 2017 | 1,999 | amazon.com | |
4. | Canon 1D X Mark II | .. | .. | 4.5/5 | 89/100 | 4.5/5 | 4.5/5 | Feb 2016 | 5,999 | ebay.com | |
5. | Canon 5D Mark IV | 4.5/5 | + + | 4/5 | 87/100 | 4.5/5 | 4.5/5 | Aug 2016 | 3,499 | amazon.com | |
6. | Canon 80D | 4/5 | + + | 4.5/5 | 84/100 | 4.5/5 | 4.5/5 | Feb 2016 | 1,199 | ebay.com | |
7. | Canon SX540 | .. | .. | .. | .. | .. | .. | Jan 2016 | 399 | ebay.com | |
8. | Canon 5DS | .. | + | .. | 83/100 | 4.5/5 | 4.5/5 | Feb 2015 | 3,699 | amazon.com | |
9. | Canon 5DS R | 5/5 | + | .. | 83/100 | 5/5 | 4.5/5 | Feb 2015 | 3,699 | amazon.com | |
10. | Canon 7D II | 4.5/5 | + | 3.5/5 | 84/100 | 4/5 | 4.5/5 | Sep 2014 | 1,799 | ebay.com | |
11. | Canon 70D | 5/5 | + + | .. | 83/100 | 4.5/5 | 5/5 | Jul 2013 | 1,199 | ebay.com | |
12. | Canon 6D | 5/5 | + + | .. | 83/100 | 4.5/5 | 4.5/5 | Sep 2012 | 2,099 | ebay.com | |
13. | Canon 5D Mark II | 4/5 | 91/100 | .. | 79/100 | 4/5 | .. | Sep 2008 | 3,499 | ebay.com | |
14. | Canon 5D | .. | 88/100 | .. | + + | o | .. | Aug 2005 | 3,299 | ebay.com | |
15. | Fujifilm X100V | 5/5 | + + | 4.5/5 | 86/100 | 5/5 | 4.5/5 | Feb 2020 | 1,399 | amazon.com | |
16. | Fujifilm X100F | 5/5 | + | 3.9/5 | 83/100 | 4.5/5 | 4.5/5 | Jan 2017 | 1,299 | ebay.com | |
17. | Sony RX10 III | 5/5 | + | .. | 84/100 | 4.5/5 | 4.5/5 | Mar 2016 | 1,499 | ebay.com | |
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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.
- Canon 1D Mark II N vs Canon G1 X Mark III
- Canon 5D Mark III vs Canon T2i
- Canon 5D Mark III vs Fujifilm X-T1
- Canon 5D Mark III vs Panasonic GX8
- Canon 5D Mark III vs Panasonic LX7
- Canon 5D Mark III vs Sony HX95
- Canon 5D Mark III vs Sony RX100 V
- Canon G1 X Mark III vs Canon M10
- Canon G1 X Mark III vs Canon SX420
- Canon G1 X Mark III vs Nikon D1H
- Canon G1 X Mark III vs Nikon D810
- Canon G1 X Mark III vs Sony A7 III
Specifications: Canon 5D Mark III vs Canon G1 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 Model | Canon 5D Mark III | Canon G1 X Mark III |
Camera Type | Digital single lens reflex | Fixed lens compact camera |
Camera Lens | Canon EF mount lenses | 24-72mm f/2.8-5.6 |
Launch Date | March 2012 | October 2017 |
Launch Price | USD 3,499 | USD 1,299 |
Sensor Specs | Canon 5D Mark III | Canon G1 X Mark III |
---|---|---|
Sensor Technology | CMOS | CMOS |
Sensor Format | Full Frame Sensor | APS-C Sensor |
Sensor Size | 36.0 x 24.0 mm | 22.3 x 14.9 mm |
Sensor Area | 864 mm2 | 332.27 mm2 |
Sensor Diagonal | 43.3 mm | 26.8 mm |
Crop Factor | 1.0x | 1.5x |
Sensor Resolution | 22.1 Megapixels | 24 Megapixels |
Image Resolution | 5760 x 3840 pixels | 6000 x 4000 pixels |
Pixel Pitch | 6.25 μm | 3.72 μm |
Pixel Density | 2.56 MP/cm2 | 7.22 MP/cm2 |
Moiré control | Anti-Alias filter | Anti-Alias filter |
Movie Capability | 1080/30p Video | 1080/60p Video |
ISO Setting | 100 - 25,600 ISO | 100 - 25,600 ISO |
ISO Boost | 50 - 102,400 ISO | no Enhancement |
Image Processor | DIGIC 5+ | DIGIC 7 |
DXO Sensor Quality (score) | 81 | .. |
DXO Color Depth (bits) | 24.0 | .. |
DXO Dynamic Range (EV) | 11.7 | .. |
DXO Low Light (ISO) | 2293 | .. |
Screen Specs | Canon 5D Mark III | Canon G1 X Mark III |
Viewfinder Type | Optical viewfinder | Electronic viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.71x | |
Viewfinder Resolution | 2360k dots | |
Top-Level Screen | Control Panel | no Top Display |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.2inch | 3.0inch |
LCD Resolution | 1040k dots | 1040k dots |
LCD Attachment | Fixed screen | Swivel screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Canon 5D Mark III | Canon G1 X Mark III |
Focus System | Phase-detect AF | On-Sensor Phase-detect |
Manual Focusing Aid | no Peaking Feature | Focus Peaking |
Max Shutter Speed (mechanical) | 1/8000s | 1/2000s |
Continuous Shooting | 6 shutter flaps/s | 9 shutter flaps/s |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Fill Flash | no On-Board Flash | Built-in Flash |
Storage Medium | CF or SDXC cards | SDXC cards |
Single or Dual Card Slots | Dual card slots | Single card slot |
UHS card support | no | UHS-I |
Connectivity Specs | Canon 5D Mark III | Canon G1 X Mark III |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | no PC Sync |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | mini HDMI | micro HDMI |
Microphone Port | External MIC port | no MIC socket |
Headphone Socket | Headphone port | no Headphone port |
Wifi Support | no Wifi | Wifi built-in |
Near-Field Communication | no NFC | NFC built-in |
Bluetooth Support | no Bluetooth | Bluetooth built-in |
Body Specs | Canon 5D Mark III | Canon G1 X Mark III |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | LP-E6 | NB-13L |
Battery Life (CIPA) | 950 shots per charge | 200 shots per charge |
Body Dimensions |
152 x 116 x 76 mm (6.0 x 4.6 x 3.0 in) |
115 x 78 x 51 mm (4.5 x 3.1 x 2.0 in) |
Camera Weight | 950 g (33.5 oz) | 399 g (14.1 oz) |

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