Canon G3 X vs T6i
The Canon PowerShot G3 X and the Canon EOS Rebel T6i (labelled Canon 750D in some countries) are two digital cameras that were officially introduced, respectively, in June 2015 and February 2015. The G3X is a fixed lens compact, while the T6i is a DSLR. The cameras are based on an one-inch (G3X) and an APS-C (T6i) sensor. The G3X has a resolution of 20 megapixels, whereas the T6i provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon G3 X||Canon T6i|
|Fixed lens compact camera||Digital single lens reflex|
|24-600mm f/2.8-5.6||Canon EF mount lenses|
|20 MP, 1" Sensor||24 MP, APS-C Sensor|
|1080/60p Video||1080/30p Video|
|ISO 125-12,800 (125 - 25,600)||ISO 100-12,800 (100 - 25,600)|
|Viewfinder optional||Optical viewfinder|
|3.2 LCD, 1620k dots||3.0 LCD, 1040k dots|
|Tilting touchscreen||Swivel touchscreen|
|5.9 shutter flaps per second||5 shutter flaps per second|
|Weathersealed body||not weather sealed|
|300 shots per battery charge||440 shots per battery charge|
|123 x 77 x 105 mm, 733 g||132 x 101 x 78 mm, 555 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G3 X and the Canon EOS Rebel T6i? 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.
An illustration of the physical size and weight of the Canon G3 X and the Canon T6i is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth 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 T6i is notably larger (41 percent) than the Canon G3 X. It is worth mentioning in this context that the G3X is splash and dust resistant, while the T6i does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G3X has a lens built in, whereas the T6i 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 T6i and their specifications in the Canon EF Lens Catalog.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Canon G3 X||4.8 in||3.0 in||4.1 in||25.9 oz||300||Y||Jun 2015||999|
|Canon T6i||5.2 in||4.0 in||3.1 in||19.6 oz||440||n||Feb 2015||749|
|Canon 77D||5.2 in||3.9 in||3.0 in||19.0 oz||600||n||Feb 2017||899|
|Canon T7i||5.2 in||3.9 in||3.0 in||18.8 oz||600||n||Feb 2017||749|
|Canon 80D||5.5 in||4.1 in||3.1 in||25.8 oz||960||Y||Feb 2016||1,199|
|Canon G9 X||3.9 in||2.3 in||1.2 in||7.4 oz||220||n||Oct 2015||529|
|Canon T6s||5.2 in||4.0 in||3.1 in||19.9 oz||440||n||Feb 2015||649|
|Canon G7 X||4.1 in||2.4 in||1.6 in||10.7 oz||210||n||Sep 2014||699|
|Canon 70D||5.5 in||4.1 in||3.1 in||26.6 oz||920||Y||Jul 2013||1,199|
|Canon T5i||5.2 in||3.9 in||3.1 in||20.5 oz||440||n||Mar 2013||649|
|Canon T4i||5.2 in||3.9 in||3.1 in||20.3 oz||440||n||Jun 2012||849|
|Panasonic FZ1000||5.4 in||3.9 in||5.2 in||29.3 oz||360||n||Jun 2014||899|
|Sony RX10 III||5.2 in||3.7 in||5.0 in||37.1 oz||420||Y||Mar 2016||1,499|
|Sony RX100 V||4.0 in||2.3 in||1.6 in||10.5 oz||220||n||Oct 2016||999|
|Sony RX10 II||5.1 in||3.5 in||4.0 in||28.7 oz||400||Y||Jun 2015||1,299|
|Sony RX100 IV||4.0 in||2.3 in||1.6 in||10.5 oz||280||n||Jun 2015||999|
|Sony RX10||5.1 in||3.5 in||4.0 in||28.7 oz||420||Y||Oct 2013||1,299|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
Any camera decision will obviously take relative prices into account. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.
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. 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 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 T6i an APS-C sensor. The sensor area in the T6i 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.
With 24MP, the T6i offers a higher resolution than the G3X (20MP), but the T6i nevertheless has larger individual pixels (pixel pitch of 3.72μm versus 2.41μm for the G3X) due to its larger sensor. However, the G3X is a somewhat more recent model (by 4 months) than the T6i, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Canon T6i implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T6i 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 T6i 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 Rebel T6i are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 100-25600.
For many cameras, data on sensor performance has been reported by DXO Mark. 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"). Of the two cameras under consideration, the T6i has a markedly higher DXO score than the G3X (overall score 8 points higher), which will translate into better image quality. The advantage is based on 1.3 bits higher color depth, 0.3 EV of lower dynamic range, and 0.8 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.
|Canon G3 X||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Sony RX10 III||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
|Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||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 are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the G3X provides a higher frame rate than the T6i. It can shoot video footage at 1080/60p, while the T6i is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the T6i has an optical viewfinder, which can be very useful 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 following table reports on some other key feature differences and similarities of the Canon G3 X, the Canon T6i, and comparable cameras.
|Canon G3 X||optional||n||3.2||1620||tilting||Y||1/2000s||5.9||Y||Y|
|Canon G9 X||none||n||3.0||1040||fixed||Y||1/2000s||6.0||Y||Y|
|Canon G7 X||none||n||3.0||1040||tilting||Y||1/2000s||6.5||Y||Y|
|Sony RX10 III||2359||Y||3.0||1229||tilting||n||1/2000s||14.0||Y||Y|
|Sony RX100 V||2359||n||3.0||1229||tilting||n||1/2000s||24.0||Y||Y|
|Sony RX10 II||2359||Y||3.0||1229||tilting||n||1/3200s||14.0||Y||Y|
|Sony RX100 IV||2359||n||3.0||1228||tilting||n||1/2000s||16.0||Y||Y|
Concerning the storage of imaging data, both the G3X and the T6i write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 Rebel T6i and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Canon G3 X||Y||stereo||mono||Y||Y||mini||2.0||Y||Y||-|
|Canon G9 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Canon G7 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Sony RX10 III||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|Sony RX100 V||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Sony RX10 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|Sony RX100 IV||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
The G3X is a recent model that features in the current product line-up of Canon. In contrast, the T6i has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the T6i was succeeded by the Canon T7i. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So what conclusions can be drawn? Is there a clear favorite between the Canon G3 X and the Canon T6i? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon PowerShot G3 X:
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- 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).
- Faster burst: Shoots at higher frequency (5.9 vs 5 flaps/sec) to capture the decisive moment.
- Ready to shoot: Comes with a built-in lens, while the T6i requires a separate lens.
- More compact: Is smaller (123x77mm vs 132x101mm) and thus needs less room in the bag.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- More modern: Is somewhat more recent (announced 4 months after the T6i).
Reasons to prefer the Canon EOS Rebel T6i:
- More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
- Better image quality: Scores markedly higher (8 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.3 bits more color depth).
- Better low-light sensitivity: Can shoot in dim conditions (0.8 stops ISO advantage).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (440 versus 300) out of a single battery charge.
- More heavily discounted: Has been on the market for longer (launched in February 2015).
If the count of relative strengths (bullet points above) is taken as a measure, the T6i comes out slightly ahead of the G3X (11 : 10 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.
How about other alternatives? Do the specifications of the Canon G3 X and the Canon T6i place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the G3X and the T6i in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Canon G3 X||+||..||4.5/5||3.5/5||4/5||Jun 2015||999|
|Canon T6i||..||75/100||4.5/5||4.5/5||4.5/5||Feb 2015||749|
|Canon 77D||..||82/100||4.5/5||4.5/5||4/5||Feb 2017||899|
|Canon T7i||..||80/100||4.5/5||4/5||4/5||Feb 2017||749|
|Canon 80D||+ +||84/100||4.5/5||4.5/5||4.5/5||Feb 2016||1,199|
|Canon G9 X||+ +||..||4.5/5||4/5||4.5/5||Oct 2015||529|
|Canon T6s||+||77/100||4.5/5||4.5/5||4.5/5||Feb 2015||649|
|Canon G7 X||+ +||77/100||4.5/5||3.5/5||4.5/5||Sep 2014||699|
|Canon 70D||+ +||83/100||4.5/5||4.5/5||5/5||Jul 2013||1,199|
|Canon T5i||..||76/100||4.5/5||4.5/5||4.5/5||Mar 2013||649|
|Canon T4i||+ +||77/100||4.5/5||4.5/5||4.5/5||Jun 2012||849|
|Panasonic FZ1000||+ +||82/100||4.5/5||4.5/5||4.5/5||Jun 2014||899|
|Sony RX10 III||+||84/100||4.5/5||4.5/5||4.5/5||Mar 2016||1,499|
|Sony RX100 V||+ +||83/100||4/5||5/5||4.5/5||Oct 2016||999|
|Sony RX10 II||+ +||82/100||4.5/5||4.5/5||4/5||Jun 2015||1,299|
|Sony RX100 IV||+ +||85/100||4/5||4.5/5||4.5/5||Jun 2015||999|
|Sony RX10||+||80/100||4.5/5||4.5/5||4.5/5||Oct 2013||1,299|
|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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Canon G3 X vs Canon T6i
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 G3 X||Canon T6i|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||24-600mm f/2.8-5.6||Canon EF mount lenses|
|Launch Date||June 2015||February 2015|
|Launch Price||USD 999||USD 749|
|Sensor Specs||Canon G3 X||Canon T6i|
|Sensor Format||1" Sensor||APS-C Sensor|
|Sensor Size||13.2 x 8.8 mm||22.3 x 14.9 mm|
|Sensor Area||116.16 mm2||332.27 mm2|
|Sensor Diagonal||15.9 mm||26.8 mm|
|Sensor Resolution||20 Megapixels||24 Megapixels|
|Image Resolution||5472 x 3648 pixels||6000 x 4000 pixels|
|Pixel Pitch||2.41 μm||3.72 μm|
|Pixel Density||17.18 MP/cm2||7.22 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||1080/30p Video|
|ISO Setting||125 - 12,800 ISO||100 - 12,800 ISO|
|ISO Boost||125 - 25,600 ISO||100 - 25,600 ISO|
|Image Processor||DIGIC 6||DIGIC 6|
|DXO Sensor Quality (score)||63||71|
|DXO Color Depth (bits)||21.4||22.7|
|DXO Dynamic Range (EV)||12.3||12.0|
|DXO Low Light (ISO)||521||919|
|Screen Specs||Canon G3 X||Canon T6i|
|Viewfinder Type||Viewfinder optional||Optical viewfinder|
|Viewfinder Field of View||95%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.0inch|
|LCD Resolution||1620k dots||1040k dots|
|LCD Attachment||Tilting screen||Swivel screen|
|Shooting Specs||Canon G3 X||Canon T6i|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||5.9 shutter flaps/s||5 shutter flaps/s|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon G3 X||Canon T6i|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Body Specs||Canon G3 X||Canon T6i|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||300 shots per charge||440 shots per charge|
123 x 77 x 105 mm
(4.8 x 3.0 x 4.1 in)
132 x 101 x 78 mm
(5.2 x 4.0 x 3.1 in)
|Camera Weight||733 g (25.9 oz)||555 g (19.6 oz)|
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