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Canon T3i versus Canon G7 X Mark II

The Canon EOS Rebel T3i (called Canon 650D in some regions) and the Canon PowerShot G7 X Mark II are two digital cameras that were revealed to the public, respectively, in February 2011 and February 2016. The T3i is a DSLR, while the G7X Mark II is a fixed lens compact. The cameras are based on an APS-C (T3i) and an one-inch (G7X Mark II) sensor. The T3i has a resolution of 17.9 megapixel, whereas the G7X Mark II provides 20 MP. 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 T3i vs Canon G7 X Mark II

An illustration of the physical size and weight of the Canon T3i and the Canon G7 X Mark II is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the T3i – represents 100 percent across all the size and weight measures).

Compare Canon T3i vs Canon G7 X Mark II
Compare T3i versus G7X Mark II top
Compare T3i and G7X Mark II rear

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 (51 percent) than the Canon T3i. In this context, it is worth noting that neither the T3i nor the G7X Mark II are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X Mark II has a lens build in, whereas the T3i is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can find an overview of optics for the T3i and their specifications in the Canon EF Lens Catalog.

Concerning battery life, the T3i gets 440 shots out of its LP-E8 battery, while the G7X Mark II can take 265 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 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.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Canon T3i» 5.2 in 3.9 in 3.1 in 20.1 oz 440 n Feb 2011 599- i Canon T3i
Canon G7 X Mark II« 4.2 in 2.4 in 1.7 in 11.3 oz 265 n Feb 2016 699 i i Canon G7 X Mark II
Canon SL2« » 4.8 in 3.7 in 2.8 in 16.0 oz 650 n Jun 2017 549 i i Canon SL2
Canon T6« » 5.1 in 4.0 in 3.1 in 17.1 oz 500 n Mar 2016 449- i Canon T6
Canon G5 X« » 4.4 in 3.0 in 1.7 in 12.5 oz 210 n Oct 2015 799 i i Canon G5 X
Canon G9 X« » 3.9 in 2.3 in 1.2 in 7.4 oz 220 n Oct 2015 529- i Canon G9 X
Canon M3« » 4.4 in 2.7 in 1.7 in 12.9 oz 250 n Feb 2015 679- i Canon M3
Canon G7 X« » 4.1 in 2.4 in 1.6 in 10.7 oz 210 n Sep 2014 699- i Canon G7 X
Canon T5« » 5.1 in 3.9 in 3.1 in 16.9 oz 500 n Feb 2014 449- i Canon T5
Canon SL1« » 4.6 in 3.6 in 2.7 in 14.4 oz 380 n Mar 2013 549- i Canon SL1
Canon T5i« » 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649- i Canon T5i
Canon M« » 4.3 in 2.6 in 1.3 in 10.5 oz 230 n Jul 2012 599- i Canon M
Canon T4i« » 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849- i Canon T4i
Canon T3« » 5.1 in 3.9 in 3.1 in 17.5 oz 700 n Feb 2011 449- i Canon T3
Canon T2i« » 5.1 in 3.9 in 2.4 in 18.7 oz 440 n Feb 2010 699- i Canon T2i
Canon T1i« » 5.1 in 3.9 in 2.4 in 18.3 oz 400 n Mar 2009 799- i Canon T1i
Sony RX100 IV« » 4.0 in 2.3 in 1.6 in 10.5 oz 280 n Jun 2015 999- i Sony RX100 IV

Any camera purchase will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. 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 T3i vs Canon G7 X Mark II

The size of the sensor inside a digital camera is one of the key determinants 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 tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon T3i features an APS-C sensor and the Canon G7 X Mark II an one-inch sensor. The sensor area in the G7X Mark II is 65 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Technology-wise, the G7X Mark II uses a more advanced image processing engine (DIGIC 7) than the T3i (DIGIC 4), with benefits for noise reduction, color accuracy, and processing speed.

Canon T3i and Canon G7 X Mark II sensor measures

Despite having a smaller sensor, the G7X Mark II offers a higher resolution of 20 megapixel, compared with 17.9 MP of the T3i. This megapixel advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 2.41μm versus 4.31μm for the T3i). However, it should be noted that the G7X Mark II is much more recent (by 5 years) than the T3i, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

T3i versus G7X Mark II MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 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
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Canon T3i» APS-C 17.9 5184 34561080/30p22.111.579365Canon T3i
Canon G7 X Mark II« 1-inch 20.0 5472 36481080/60p----Canon G7 X Mark II
Canon SL2« » APS-C 24.0 6000 40001080/60p23.613.4104179Canon SL2
Canon T6« » APS-C 17.9 5184 34561080/30p----Canon T6
Canon G5 X« » 1-inch 20.0 5472 36481080/60p----Canon G5 X
Canon G9 X« » 1-inch 20.0 5472 36481080/60p21.512.349563Canon G9 X
Canon M3« » APS-C 24.0 6000 40001080/30p22.811.8116972Canon M3
Canon G7 X« » 1-inch 20.0 5472 36481080/60p23.012.755671Canon G7 X
Canon T5« » APS-C 17.9 5184 34561080/30p21.911.372463Canon T5
Canon SL1« » APS-C 17.9 5184 34561080/30p21.811.384363Canon SL1
Canon T5i« » APS-C 17.9 5184 34561080/30p21.711.268161Canon T5i
Canon M« » APS-C 17.9 5184 34561080/30p22.111.282765Canon M
Canon T4i« » APS-C 17.9 5184 34561080/30p21.711.272262Canon T4i
Canon T3« » APS-C 12.2 4272 2848720/30p21.911.075562Canon T3
Canon T2i« » APS-C 17.9 5184 34561080/30p22.111.578466Canon T2i
Canon T1i« » APS-C 15.1 4752 31681080/20p21.711.566363Canon T1i
Sony RX100 IV« » 1-inch 20.0 5472 36484K/30p22.812.659170Sony RX100 IV

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the G7X Mark II provides a faster frame rate than the T3i. It can shoot movie footage at 1080/60p, while the T3i is limited to 1080/30p.

 

Feature comparison: Canon T3i vs Canon G7 X Mark II

Apart from body and sensor, cameras can and do differ across a range of features. For example, the T3i has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G7X Mark II relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon T3i and Canon G7 X Mark II along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or in the dpreview camera hub.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Canon T3i»optical n 3.0 1040 swivel n 4000 3.7 Y n Canon T3i
Canon G7 X Mark II«- n 3.0 1040 tilting Y 2000 8.0 Y Y Canon G7 X Mark II
Canon SL2« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon SL2
Canon T6« »optical n 3.0 920 fixed n 4000 3.0 Y n Canon T6
Canon G5 X« »2360 n 3.0 1040 swivel Y 2000 5.9 Y Y Canon G5 X
Canon G9 X« »- n 3.0 1040 fixed Y 2000 6.0 Y Y Canon G9 X
Canon M3« »- n 3.0 1040 tilting Y 4000 4.2 Y n Canon M3
Canon G7 X« »- n 3.0 1040 tilting Y 2000 6.5 Y Y Canon G7 X
Canon T5« »optical n 3.0 460 fixed n 4000 3.0 Y n Canon T5
Canon SL1« »optical n 3.0 1040 fixed Y 4000 4.9 Y n Canon SL1
Canon T5i« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon T5i
Canon M« »- n 3.0 1040 fixed Y 4000 4.3 n n Canon M
Canon T4i« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon T4i
Canon T3« »optical n 2.7 230 fixed n 4000 3.0 Y n Canon T3
Canon T2i« »optical n 3.0 1040 fixed n 4000 3.7 Y n Canon T2i
Canon T1i« »optical n 3.0 920 fixed n 4000 3.4 Y n Canon T1i
Sony RX100 IV« »2359 n 3.0 1228 tilting n 2000 16.0 Y Y Sony RX100 IV

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G7X Mark II has a touchscreen, while the T3i has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

Both the T3i and the G7X Mark II write their imaging data to SDXC cards.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
Canon T3i»YmonomonoY-mini2.0---Canon T3i
Canon G7 X Mark II«-stereomono--micro2.0YY-Canon G7 X Mark II
Canon SL2« »YstereomonoY-mini2.0YYYCanon SL2
Canon T6« »Ymonomono--mini2.0YY-Canon T6
Canon G5 X« »Ystereomono--mini2.0YY-Canon G5 X
Canon G9 X« »-stereomono--micro2.0YY-Canon G9 X
Canon M3« »YstereomonoY-mini2.0YY-Canon M3
Canon G7 X« »-stereomono--micro2.0YY-Canon G7 X
Canon T5« »Ymonomono--mini2.0---Canon T5
Canon SL1« »YmonomonoY-mini2.0---Canon SL1
Canon T5i« »YstereomonoY-mini2.0---Canon T5i
Canon M« »YstereomonoY-mini2.0---Canon M
Canon T4i« »YstereomonoY-mini2.0---Canon T4i
Canon T3« »Ystereomono--mini2.0---Canon T3
Canon T2i« »Ystereo-Y-mini2.0---Canon T2i
Canon T1i« »Ymonomono--mini2.0---Canon T1i
Sony RX100 IV« »-stereomono--micro2.0YY-Sony RX100 IV

The G7X Mark II is a recent model that features in the current product line-up of Canon. In contrast, the T3i has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the T3i was succeeded by the Canon T4i.

Review summary: Canon T3i vs Canon G7 X Mark II

So how do things add up? Which of the two cameras – the Canon T3i or the Canon G7 X Mark II – has the upper hand? The listing below highlights the relative strengths of the two models.


Advantages of the Canon EOS Rebel T3i:

  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Easier framing: Has an optical viewfinder for image framing and settings control.
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (4000/sec vs 2000/sec) to freeze action.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • Longer lasting: Can take more shots (440 versus 265) on a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • More heavily discounted: Has been available for much longer (launched in February 2011).


Arguments in favor of the Canon PowerShot G7 X Mark II:

  • More detail: Has more megapixels (20 vs 17.9MP), which boosts linear resolution by 6%.
  • Better jpgs: Has a more modern image processing engine (DIGIC 7 vs DIGIC 4).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (8 vs 3.7 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with an integrated lens, while the T3i requires a separate lens.
  • More compact: Is smaller (106x61mm vs 133x100mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens build in (unlike the T3i).
  • Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
  • Easier file upload: Has wifi build in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More modern: Reflects 5 years of technical progress since the T3i launch.

If the count of relative strengths (bullet points above) is taken as a measure, the G7X Mark II is the clear winner of the contest (12 : 8 points). 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.

T3i 08:12 G7X Mark II

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 T3i or the G7X Mark II 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 why expert reviews are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Canon T3i»rev77/1004.5/55/54.5/5 Feb 2011 599- i Canon T3i
Canon G7 X Mark II«HiRec81/1004.5/54/54.5/5 Feb 2016 699 i i Canon G7 X Mark II
Canon SL2« »HiRec78/1004.5/54.5/54.5/5 Jun 2017 549 i i Canon SL2
Canon T6« »rev73/1004/53.5/54/5 Mar 2016 449- i Canon T6
Canon G5 X« »HiRec78/1004.5/54/54.5/5 Oct 2015 799 i i Canon G5 X
Canon G9 X« »HiRec-4.5/54/54.5/5 Oct 2015 529- i Canon G9 X
Canon M3« »rev75/1004.5/54.5/54/5 Feb 2015 679- i Canon M3
Canon G7 X« »HiRec77/1004.5/53.5/54.5/5 Sep 2014 699- i Canon G7 X
Canon T5« »Rec-4/54/54.5/5 Feb 2014 449- i Canon T5
Canon SL1« »Rec78/1004/54/54/5 Mar 2013 549- i Canon SL1
Canon T5i« »-76/1004.5/54.5/54.5/5 Mar 2013 649- i Canon T5i
Canon M« »Rec-4/53.5/54/5 Jul 2012 599- i Canon M
Canon T4i« »HiRec77/1004.5/54.5/54.5/5 Jun 2012 849- i Canon T4i
Canon T3« »80/10069/1004/54/54.5/5 Feb 2011 449- i Canon T3
Canon T2i« »HiRec77/1004/55/54.5/5 Feb 2010 699- i Canon T2i
Canon T1i« »HiRec74/1004.5/55/54.5/5 Mar 2009 799- i Canon T1i
Sony RX100 IV« »HiRec85/1004/54.5/54.5/5 Jun 2015 999- i Sony RX100 IV

The above review scores should be interpreted with care, though. The ratings are only valid when referring 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

 

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. 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 do not see the camera that you are looking for, kindly get in touch, and I will try to update the database with the necessary infos.

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