Canon G3 X versus Canon G7 X Mark II
The Canon PowerShot G3 X and the Canon PowerShot G7 X Mark II are two digital cameras that were revealed to the public, respectively, in June 2015 and February 2016. Both the G3X and the G7X Mark II are fixed lens compact cameras that are equipped with an one-inch sensor. Both cameras offer a resolution of 20 megapixel. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.
Body comparison: Canon G3 X vs Canon G7 X Mark II
The physical size and weight of the Canon G3 X and the Canon G7 X Mark II are illustrated in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All size 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 G3X – represents 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G7 X Mark II is considerably smaller (32 percent) than the Canon G3 X. Moreover, the G7X Mark II is substantially lighter (56 percent) than the G3X. It is worth mentioning in this context that the G3X is splash and dust resistant, while the G7X Mark II 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 camera comparisons there.
|Camera Body Specifications|
|Canon G3 X»||123 mm||77 mm||105 mm||733 g||300||Y||Jun 2015||999|
|Canon G7 X Mark II«||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699|
|Canon SX730« »||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399|
|Canon M100« »||108 mm||67 mm||35 mm||302 g||295||n||Aug 2017||499|
|Canon M6« »||112 mm||68 mm||45 mm||390 g||295||n||Feb 2017||779|
|Canon 80D« »||139 mm||105 mm||79 mm||730 g||960||Y||Feb 2016||1,199|
|Canon G9 X« »||98 mm||58 mm||31 mm||209 g||220||n||Oct 2015||529||-|
|Canon M3« »||111 mm||68 mm||44 mm||366 g||250||n||Feb 2015||679||-|
|Canon T6s« »||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||849||-|
|Canon G5 X« »||112 mm||76 mm||44 mm||353 g||210||n||Oct 2015||799|
|Canon 7D II« »||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799|
|Canon G7 X« »||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699||-|
|Canon 70D« »||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199||-|
|Panasonic FZ1000« »||137 mm||99 mm||131 mm||831 g||360||n||Jun 2014||899||-|
|Sony RX10 III« »||133 mm||94 mm||127 mm||1051 g||420||Y||Mar 2016||1,499||-|
|Sony RX10 II« »||129 mm||88 mm||102 mm||813 g||400||Y||Jun 2015||1,299||-|
|Sony RX100 IV« »||102 mm||58 mm||41 mm||298 g||280||n||Jun 2015||999||-|
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G7X Mark II was launched at a markedly lower price (by 30 percent) than the G3X, 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: Canon G3 X vs Canon G7 X Mark II
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. 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.
Both cameras under consideration feature an one-inch sensor and have a format factor (sometimes also referred to as "crop factor") of 2.7. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 20 megapixel. This similarity in sensor specs implies that both the G3X and the G7X Mark II have the same pixel density, as well as the same pixel size. It should, however, be noted that the G7X Mark II is a somewhat more recent model (by 8 months) than the G3X, and its sensor might have benefitted from technological advances during this time.
Consistent information on actual sensor performance is available from DXO Mark for most 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"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Canon G3 X»||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|Canon G7 X Mark II«||1-inch||20.0||5472||3648||1080/60p||-||-||-||-|
|Canon SX730« »||1/2.3||20.2||5184||3888||1080/60p||-||-||-||-|
|Canon M100« »||APS-C||24.0||6000||4000||1080/60p||23.5||12.9||1272||78|
|Canon M6« »||APS-C||24.0||6000||4000||1080/60p||-||-||-||-|
|Canon 80D« »||APS-C||24.0||6000||4000||1080/60p||23.6||13.2||1135||79|
|Canon G9 X« »||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|Canon M3« »||APS-C||24.0||6000||4000||1080/30p||22.8||11.8||1169||72|
|Canon T6s« »||APS-C||24.0||6000||4000||1080/30p||22.6||12.0||915||70|
|Canon G5 X« »||1-inch||20.0||5472||3648||1080/60p||-||-||-||-|
|Canon 7D II« »||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|Canon G7 X« »||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Canon 70D« »||APS-C||20.0||5472||3648||1080/30p||22.5||11.6||926||68|
|Panasonic FZ1000« »||1-inch||20.0||5472||3648||4K/30p||22.1||11.7||517||64|
|Sony RX10 III« »||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
|Sony RX10 II« »||1-inch||20.0||5472||3648||4K/30p||23.0||12.6||531||70|
|Sony RX100 IV« »||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).
Feature comparison: Canon G3 X vs Canon G7 X Mark II
Beyond body and sensor, cameras can and do differ across a range of features. The G3X and the G7X Mark II are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. The table below summarizes some of the other core capabilities of the Canon G3 X and Canon G7 X Mark II in connection with corresponding information for a sample of similar cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Canon G3 X»||-||n||3.2||1620||tilting||Y||2000||5.9||Y||Y|
|Canon G7 X Mark II«||-||n||3.0||1040||tilting||Y||2000||8.0||Y||Y|
|Canon SX730« »||-||n||3.0||922||tilting||n||3200||5.9||Y||Y|
|Canon M100« »||-||n||3.0||1040||tilting||Y||4000||6.1||Y||n|
|Canon M6« »||-||n||3.0||1040||tilting||Y||4000||9.0||Y||n|
|Canon 80D« »||optical||Y||3.0||1040||swivel||Y||8000||7.0||Y||n|
|Canon G9 X« »||-||n||3.0||1040||fixed||Y||2000||6.0||Y||Y|
|Canon M3« »||-||n||3.0||1040||tilting||Y||4000||4.2||Y||n|
|Canon T6s« »||optical||Y||3.0||1040||swivel||Y||4000||5.0||Y||n|
|Canon G5 X« »||2360||n||3.0||1040||swivel||Y||2000||5.9||Y||Y|
|Canon 7D II« »||optical||Y||3.0||1040||fixed||n||8000||10.0||Y||n|
|Canon G7 X« »||-||n||3.0||1040||tilting||Y||2000||6.5||Y||Y|
|Canon 70D« »||optical||Y||3.0||1040||swivel||Y||8000||7.0||Y||n|
|Panasonic FZ1000« »||2359||n||3.0||921||swivel||n||4000||12.0||Y||Y|
|Sony RX10 III« »||2359||Y||3.0||1229||tilting||n||2000||14.0||Y||Y|
|Sony RX10 II« »||2359||Y||3.0||1229||tilting||n||3200||14.0||Y||Y|
|Sony RX100 IV« »||2359||n||3.0||1228||tilting||n||2000||16.0||Y||Y|
Both the G3X and the G7X Mark II have zoom lenses build in. The G3X has a 24-600mm f/2.8-5.6 optic and the G7X Mark II offers a 24-100mm f/1.8-2.8 (focal lengths in full frame equivalent terms). Hence, the G3X and G7X Mark II provide the same view at the wide-angle end, but the G7X Mark II has less tele-photo reach at the long end. The G7X Mark II offers the faster maximum aperture.
Both the G3X and the G7X Mark II are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The G7X Mark II replaced the earlier Canon G7 X, while the G3X does not have a direct predecessor.
Review summary: Canon G3 X vs Canon G7 X Mark II
So how do things add up? Is the Canon G3 X better than the Canon G7 X Mark II or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon PowerShot G3 X:
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1620k vs 1040k dots).
- More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
- Longer lasting: Can take more shots (300 versus 265) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- More heavily discounted: Has been on the market for longer (launched in June 2015).
Advantages of the Canon PowerShot G7 X Mark II:
- Faster burst: Shoots at higher frequency (8 vs 5.9 flaps/sec) to capture the decisive moment.
- Better light gathering: Has a lens with a wider maximum aperture (f/1.8 vs f/2.8).
- More compact: Is smaller (106x61mm vs 123x77mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 414g or 56 percent) and is thus easier to take along.
- More affordable: Was introduced into a lower priced category (30 percent cheaper at launch).
- More modern: Was introduced somewhat (8 months) more recently.
If the count of individual advantages (bullet points above) is taken as a guide, the match-up finishes in a tie (6 points each). 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.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the G3X or the G7X Mark II handle or perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is why expert reviews are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.
|Canon G3 X»||Rec||-||4.5/5||3.5/5||4/5||Jun 2015||999|
|Canon G7 X Mark II«||HiRec||81/100||4.5/5||4/5||4.5/5||Feb 2016||699|
|Canon SX730« »||Rec||-||4/5||-||4/5||Apr 2017||399|
|Canon M100« »||Rec||-||4/5||-||3.5/5||Aug 2017||499|
|Canon M6« »||-||80/100||4/5||4.5/5||4/5||Feb 2017||779|
|Canon 80D« »||HiRec||84/100||4.5/5||4.5/5||4.5/5||Feb 2016||1,199|
|Canon G9 X« »||HiRec||-||4.5/5||4/5||4.5/5||Oct 2015||529||-|
|Canon M3« »||rev||75/100||4.5/5||4.5/5||4/5||Feb 2015||679||-|
|Canon T6s« »||Rec||77/100||4.5/5||4.5/5||4.5/5||Feb 2015||849||-|
|Canon G5 X« »||HiRec||78/100||4.5/5||4/5||4.5/5||Oct 2015||799|
|Canon 7D II« »||Rec||84/100||4/5||5/5||4.5/5||Sep 2014||1,799|
|Canon G7 X« »||HiRec||77/100||4.5/5||3.5/5||4.5/5||Sep 2014||699||-|
|Canon 70D« »||HiRec||83/100||4.5/5||4.5/5||5/5||Jul 2013||1,199||-|
|Panasonic FZ1000« »||HiRec||82/100||4.5/5||4.5/5||4.5/5||Jun 2014||899||-|
|Sony RX10 III« »||Rec||84/100||4.5/5||4.5/5||4.5/5||Mar 2016||1,499||-|
|Sony RX10 II« »||HiRec||82/100||4.5/5||4.5/5||4/5||Jun 2015||1,299||-|
|Sony RX100 IV« »||HiRec||85/100||4/5||4.5/5||4.5/5||Jun 2015||999||-|
The above review scores should be interpreted with care, though. The ratings are only valid when refering to cameras in the same category and of the same age. 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, 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? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If you cannot find the camera you are interested in, please contact me, and I will try to add information on that model to the database.
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