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Canon G7 X Mark II versus Nikon D3400

The Canon PowerShot G7 X Mark II and the Nikon D3400 are two digital cameras that were officially introduced, respectively, in February 2016 and August 2016. The G7X Mark II is a fixed lens compact, while the D3400 is a DSLR. The cameras are based on an one-inch (G7X Mark II) and an APS-C (D3400) sensor. The Canon has a resolution of 20 megapixel, whereas the Nikon provides 24 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 G7 X Mark II vs Nikon D3400

The side-by-side display below illustrates the physical size and weight of the Canon G7 X Mark II and the Nikon D3400. 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 measures 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 side – the G7X Mark II – represents the basis for the calculations across all the size and weight measures).

Compare Canon G7 X Mark II vs Nikon D3400
Compare G7X Mark II versus D3400 top
Compare G7X Mark II and D3400 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D3400 is considerably larger (88 percent) than the Canon G7 X Mark II. In this context, it is worth noting that neither the G7X Mark II nor the D3400 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 D3400 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 D3400 and their specifications in the Nikon Lens Catalog.

Concerning battery life, the G7X Mark II gets 265 shots out of its NB-13L battery, while the D3400 can take 1200 images on a single charge of its EN-EL14a power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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
  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 G7 X Mark II» 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699 i i Canon G7 X Mark II
Nikon D3400« 124 mm 98 mm 76 mm 445 g 1200 n Aug 2016 499- i Nikon D3400
Canon 800D« » 131 mm 100 mm 76 mm 532 g 600 n Feb 2017 749 i i Canon 800D
Canon G9 X Mark II« » 98 mm 58 mm 31 mm 206 g 235 n Jan 2017 529 i i Canon G9 X Mark II
Canon M6« » 112 mm 68 mm 45 mm 390 g 295 n Feb 2017 779 i i Canon M6
Canon M100« » 108 mm 67 mm 35 mm 302 g 295 n Aug 2017 499 i i Canon M100
Canon SX730« » 110 mm 64 mm 40 mm 300 g 250 n Apr 2017 399- i Canon SX730
Canon G5 X« » 112 mm 76 mm 44 mm 353 g 210 n Oct 2015 799 i i Canon G5 X
Canon M3« » 111 mm 68 mm 44 mm 366 g 250 n Feb 2015 679- i Canon M3
Canon G7 X« » 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699- i Canon G7 X
Fujifilm X70« » 113 mm 64 mm 44 mm 340 g 330 n Jan 2016 799- i Fujifilm X70
Nikon D3500« » 124 mm 97 mm 70 mm 365 g 1550 n Aug 2018 429 i i Nikon D3500
Nikon D5600« » 124 mm 97 mm 70 mm 465 g 970 n Nov 2016 699 i i Nikon D5600
Nikon D5500« » 124 mm 97 mm 70 mm 420 g 820 n Jan 2015 899- i Nikon D5500
Nikon D3300« » 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 499- i Nikon D3300
Nikon D3200« » 125 mm 96 mm 77 mm 505 g 540 n Apr 2012 599- i Nikon D3200
Panasonic TZ100« » 111 mm 65 mm 44 mm 312 g 300 n Jan 2016 699- i Panasonic TZ100

Any camera purchase will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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: Canon G7 X Mark II vs Nikon D3400

The size of the sensor inside a digital camera is one of the key determinants 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. 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 G7 X Mark II features an one-inch sensor and the Nikon D3400 an APS-C sensor. The sensor area in the D3400 is 216 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon G7 X Mark II and Nikon D3400 sensor measures

With 24MP, the D3400 offers a higher resolution than the G7X Mark II (20MP), but the D3400 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 2.41μm for the G7X Mark II) due to its larger sensor. Moreover, the D3400 is a somewhat more recent model (by 5 months) than the G7X Mark II, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the D3400 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

G7X Mark II versus D3400 MP

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

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 G7 X Mark II» 1-inch 20.0 5472 36481080/60p----Canon G7 X Mark II
Nikon D3400« APS-C 24.0 6000 40001080/60p24.813.9119286Nikon D3400
Canon 800D« » APS-C 24.0 6000 40001080/60p----Canon 800D
Canon G9 X Mark II« » 1-inch 20.0 5472 36481080/60p21.912.552265Canon G9 X Mark II
Canon M6« » APS-C 24.0 6000 40001080/60p----Canon M6
Canon M100« » APS-C 24.0 6000 40001080/60p23.512.9127278Canon M100
Canon SX730« » 1/2.3 20.2 5184 38881080/60p----Canon SX730
Canon G5 X« » 1-inch 20.0 5472 36481080/60p----Canon G5 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
Fujifilm X70« » APS-C 16.0 4896 32641080/60p----Fujifilm X70
Nikon D3500« » APS-C 24.0 6000 40001080/60p----Nikon D3500
Nikon D5600« » APS-C 24.0 6000 40001080/60p24.114.0130684Nikon D5600
Nikon D5500« » APS-C 24.0 6000 40001080/60p24.114.0143884Nikon D5500
Nikon D3300« » APS-C 24.0 6000 40001080/60p24.312.8138582Nikon D3300
Nikon D3200« » APS-C 24.1 6016 40001080/30p24.113.2113181Nikon D3200
Panasonic TZ100« » 1-inch 20.0 5472 36484K/30p22.812.555970Panasonic TZ100

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60p).

 

Feature comparison: Canon G7 X Mark II vs Nikon D3400

Apart from body and sensor, cameras can and do differ across a range of features. For example, the D3400 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 table below summarizes some of the other core capabilities of the Canon G7 X Mark II and Nikon D3400 in connection with corresponding information for a sample of similar cameras. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

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 G7 X Mark II»- n 3.0 1040 tilting Y 2000 8.0 Y Y Canon G7 X Mark II
Nikon D3400«optical n 3.0 921 fixed n 4000 5.0 Y n Nikon D3400
Canon 800D« »optical n 3.0 1040 swivel Y 4000 6.0 Y n Canon 800D
Canon G9 X Mark II« »- n 3.0 1040 fixed Y 2000 8.2 Y Y Canon G9 X Mark II
Canon M6« »- n 3.0 1040 tilting Y 4000 9.0 Y n Canon M6
Canon M100« »- n 3.0 1040 tilting Y 4000 6.1 Y n Canon M100
Canon SX730« »- n 3.0 922 tilting n 3200 5.9 Y Y Canon SX730
Canon G5 X« »2360 n 3.0 1040 swivel Y 2000 5.9 Y Y Canon G5 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
Fujifilm X70« »- n 3.0 1040 tilting Y 4000 8.0 Y n Fujifilm X70
Nikon D3500« »optical n 3.0 921 fixed n 4000 5.0 Y n Nikon D3500
Nikon D5600« »optical n 3.2 1037 swivel Y 4000 5.0 Y n Nikon D5600
Nikon D5500« »optical n 3.2 1037 swivel Y 4000 5.0 Y n Nikon D5500
Nikon D3300« »optical n 3.0 921 fixed n 4000 5.0 Y n Nikon D3300
Nikon D3200« »optical n 3.0 921 fixed n 4000 4.0 Y n Nikon D3200
Panasonic TZ100« »1166 n 3.0 1040 fixed Y 2000 10.0 Y Y Panasonic TZ100

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G7X Mark II has a touchscreen, while the D3400 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

Both the G7X Mark II and the D3400 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 G7 X Mark II»-stereomono--micro2.0YY-Canon G7 X Mark II
Nikon D3400«Ymonomono--mini2.0Y-YNikon D3400
Canon 800D« »YstereomonoY-mini2.0YYYCanon 800D
Canon G9 X Mark II« »-stereomono--micro2.0YYYCanon G9 X Mark II
Canon M6« »YstereomonoY-mini2.0YYYCanon M6
Canon M100« »-stereomono--mini2.0YYYCanon M100
Canon SX730« »-stereomono--micro2.0YYYCanon SX730
Canon G5 X« »Ystereomono--mini2.0YY-Canon G5 X
Canon M3« »YstereomonoY-mini2.0YY-Canon M3
Canon G7 X« »-stereomono--micro2.0YY-Canon G7 X
Fujifilm X70« »YstereomonoY-micro2.0Y--Fujifilm X70
Nikon D3500« »Ymonomono--mini2.0Y-YNikon D3500
Nikon D5600« »YstereomonoY-mini2.0YYYNikon D5600
Nikon D5500« »YstereomonoY-mini2.0Y--Nikon D5500
Nikon D3300« »YmonomonoY-mini2.0---Nikon D3300
Nikon D3200« »YmonomonoY-mini2.0---Nikon D3200
Panasonic TZ100« »-stereomono--micro2.0Y--Panasonic TZ100

The G7X Mark II is a recent model that features in the current product line-up of Canon. In contrast, the D3400 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the D3400 was succeeded by the Nikon D3500.

Review summary: Canon G7 X Mark II vs Nikon D3400

So how do things add up? Is the Canon G7 X Mark II better than the Nikon D3400 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Canon PowerShot G7 X Mark II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (8 vs 5 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with a build-in lens, while the D3400 requires a separate lens.
  • More compact: Is smaller (106x61mm vs 124x98mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a build-in lens (unlike the D3400).
  • Sharper images: Has hand-shake reducing image stabilization build-in.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More heavily discounted: Has been on the market for longer (launched in February 2016).

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Advantages of the Nikon D3400:

  • More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Is equipped with a larger and more technologically advanced sensor.
  • Richer colors: Larger sensor generates images with better, more accurate colors.
  • More dynamic range: Capable of capturing a wider spectrum of light and dark details.
  • Better low-light sensitivity: Can be used in poorly lit environments and still produce good images.
  • Easier framing: Has an optical viewfinder for image framing and settings control.
  • Faster shutter: Has higher mechanical shutter speed (4000/sec vs 2000/sec) to freeze action.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (1200 versus 265) out of a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Was introduced somewhat (5 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the D3400 emerges as the winner of the match-up (13 : 11 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.

G7X Mark II 11:13 D3400

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 G7X Mark II or the D3400 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). You can find the full text of the reviews 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 G7 X Mark II»HiRec81/1004.5/54/54.5/5 Feb 2016 699 i i Canon G7 X Mark II
Nikon D3400«Rec76/1004/54.5/54.5/5 Aug 2016 499- i Nikon D3400
Canon 800D« »-80/1004.5/54/54/5 Feb 2017 749 i i Canon 800D
Canon G9 X Mark II« »-75/1004.5/54.5/54.5/5 Jan 2017 529 i i Canon G9 X Mark II
Canon M6« »-80/1004/54.5/54/5 Feb 2017 779 i i Canon M6
Canon M100« »Rec-4/5-3.5/5 Aug 2017 499 i i Canon M100
Canon SX730« »Rec-4/5-4/5 Apr 2017 399- i Canon SX730
Canon G5 X« »HiRec78/1004.5/54/54.5/5 Oct 2015 799 i i Canon G5 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
Fujifilm X70« »-76/1004.5/54/54.5/5 Jan 2016 799- i Fujifilm X70
Nikon D3500« »--4/5-4.5/5 Aug 2018 429 i i Nikon D3500
Nikon D5600« »-79/1004.5/54.5/54/5 Nov 2016 699 i i Nikon D5600
Nikon D5500« »Rec79/1004.5/55/54.5/5 Jan 2015 899- i Nikon D5500
Nikon D3300« »Rec77/1004.5/54.5/54.5/5 Jan 2014 499- i Nikon D3300
Nikon D3200« »HiRec73/1004.5/54.5/54.5/5 Apr 2012 599- i Nikon D3200
Panasonic TZ100« »HiRec82/1004.5/54/54.5/5 Jan 2016 699- i Panasonic TZ100

The above review scores should be interpreted with care, 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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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