Canon G7 X Mark II vs Nikon Z30

The Canon PowerShot G7 X Mark II and the Nikon Z30 are two digital cameras that were announced, respectively, in February 2016 and June 2022. The G7X Mark II is a fixed lens compact, while the Z30 is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (G7X Mark II) and an APS-C (Z30) sensor. The Canon has a resolution of 20 megapixels, whereas the Nikon provides 20.7 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications

Canon G7 X Mark II		Nikon Z30
Fixed lens compact camera		Mirrorless system camera
24-100mm f/1.8-2.8		Nikon Z mount lenses
20 MP – 1" sensor		20.7 MP – APS-C sensor
1080/60p Video		4K/30p Video
ISO 125-12,800 (125 - 25,600)		ISO 100-51,200 (100 - 204,800)
No viewfinder, LCD framing		No viewfinder, LCD framing
3.0" LCD – 1040k dots		3.0" LCD – 1040k dots
Tilting touchscreen		Swivel touchscreen
8 shutter flaps per second		11 shutter flaps per second
not weather sealed		Weathersealed body
265 shots per battery charge		330 shots per battery charge
106 x 61 x 42 mm, 319 g		128 x 74 x 60 mm, 405 g

Check G7X Mark II offers at
ebay.com
Check Z30 price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G7 X Mark II and the Nikon Z30? 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

An illustration of the physical size and weight of the Canon G7 X Mark II and the Nikon Z30 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side 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 Nikon Z30 is considerably larger (46 percent) than the Canon G7 X Mark II. It is noteworthy in this context that the Z30 is splash and dust-proof, while the G7X Mark II does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X Mark II has a lens built in, whereas the Z30 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the G7X Mark II gets 265 shots out of its Canon NB-13L battery, while the Z30 can take 330 images on a single charge of its Nikon EN-EL25 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

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, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Canon G7 X Mark II	106 mm	61 mm	42 mm	319 g	265	n	Feb 2016	US$ 699	ebay.com
2.		Nikon Z30	128 mm	74 mm	60 mm	405 g	330	Y	Jun 2022	US$ 709	amazon.com
3.		Canon G5 X	112 mm	76 mm	44 mm	353 g	210	n	Oct 2015	US$ 799	ebay.com
4.		Canon G7 X	103 mm	60 mm	40 mm	304 g	210	n	Sep 2014	US$ 699	ebay.com
5.		Canon G7 X Mark III	105 mm	61 mm	41 mm	304 g	235	n	Jul 2019	US$ 749	amazon.com
6.		Canon G9 X	98 mm	58 mm	31 mm	209 g	220	n	Oct 2015	US$ 529	ebay.com
7.		Canon M3	111 mm	68 mm	44 mm	366 g	250	n	Feb 2015	US$ 679	ebay.com
8.		Nikon D5300	125 mm	98 mm	76 mm	480 g	600	n	Oct 2013	US$ 799	ebay.com
9.		Nikon D5600	124 mm	97 mm	70 mm	465 g	970	n	Nov 2016	US$ 699	ebay.com
10.		Nikon Z50	127 mm	94 mm	60 mm	450 g	320	Y	Oct 2019	US$ 859	amazon.com
11.		Nikon Z fc	135 mm	94 mm	44 mm	445 g	300	n	Jun 2021	US$ 959	amazon.com
12.		Panasonic LX10	106 mm	60 mm	42 mm	310 g	260	n	Sep 2016	US$ 699	amazon.com
13.		Sony RX100 II	102 mm	58 mm	38 mm	281 g	350	n	Jun 2013	US$ 749	ebay.com
14.		Sony RX100 III	102 mm	58 mm	41 mm	290 g	320	n	May 2014	US$ 799	ebay.com
15.		Sony RX100 IV	102 mm	58 mm	41 mm	298 g	280	n	Jun 2015	US$ 999	ebay.com
16.		Sony RX100 V	102 mm	58 mm	41 mm	299 g	220	n	Oct 2016	US$ 999	ebay.com
17.		Sony ZV-E10	115 mm	64 mm	45 mm	343 g	440	n	Jul 2021	US$ 699	amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The G7X Mark II was launched at a lower price than the Z30, despite having a lens built in. 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.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 are more costly to manufacture and tend to 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 Z30 an APS-C sensor. The sensor area in the Z30 is 218 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.

With 20.7MP, the Z30 offers a higher resolution than the G7X Mark II (20MP), but the Z30 nevertheless has larger individual pixels (pixel pitch of 4.22μm versus 2.41μm for the G7X Mark II) due to its larger sensor. Moreover, the Z30 is a much more recent model (by 6 years and 4 months) than the G7X Mark II, and its sensor will 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 Z30 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The Z30 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon PowerShot G7 X Mark II 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 Nikon Z30 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 100-204800.

In terms of underlying technology, the G7X Mark II is build around a BSI-CMOS sensor, while the Z30 uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

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 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
1.		Canon G7 X Mark II	1-inch	20.0	5472	3648	1080/60p	21.8	11.9	260	62
2.		Nikon Z30	APS-C	20.7	5568	3712	4K/30p	24.3	13.9	2230	86
3.		Canon G5 X	1-inch	20.0	5472	3648	1080/60p	21.4	12.3	471	62
4.		Canon G7 X	1-inch	20.0	5472	3648	1080/60p	23.0	12.7	556	71
5.		Canon G7 X Mark III	1-inch	20.0	5472	3648	4K/30p	22.2	12.4	583	65
6.		Canon G9 X	1-inch	20.0	5472	3648	1080/60p	21.5	12.3	495	63
7.		Canon M3	APS-C	24.0	6000	4000	1080/30p	22.8	11.8	1169	72
8.		Nikon D5300	APS-C	24.0	6000	4000	1080/60p	24.0	13.9	1338	83
9.		Nikon D5600	APS-C	24.0	6000	4000	1080/60p	24.1	14.0	1306	84
10.		Nikon Z50	APS-C	20.7	5568	3712	4K/30p	24.1	13.6	1963	84
11.		Nikon Z fc	APS-C	20.7	5568	3712	4K/30p	24.2	13.8	2131	85
12.		Panasonic LX10	1-inch	20.0	5472	3648	4K/30p	22.8	12.5	581	70
13.		Sony RX100 II	1-inch	20.0	5472	3648	1080/60p	22.5	12.4	483	67
14.		Sony RX100 III	1-inch	20.0	5472	3648	1080/60p	22.4	12.3	495	67
15.		Sony RX100 IV	1-inch	20.0	5472	3648	4K/30p	22.8	12.6	591	70
16.		Sony RX100 V	1-inch	20.0	5472	3648	4K/30p	22.8	12.4	586	70
17.		Sony ZV-E10	APS-C	24.0	6000	4000	4K/30p	24.2	13.8	2134	85
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. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the Z30 provides a better video resolution than the G7X Mark II. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The G7X Mark II and the Z30 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 adjacent table lists some of the other core features of the Canon G7 X Mark II and Nikon Z30 along with similar information for a selection of comparators.

Core Features

		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 G7 X Mark II	none	n	3.0 / 1040	tilting	Y	1/2000s	8.0/s	Y	Y
2.		Nikon Z30	none	n	3.0 / 1040	swivel	Y	1/4000s	11.0/s	Y	n
3.		Canon G5 X	2360	n	3.0 / 1040	swivel	Y	1/2000s	5.9/s	Y	Y
4.		Canon G7 X	none	n	3.0 / 1040	tilting	Y	1/2000s	6.5/s	Y	Y
5.		Canon G7 X Mark III	none	n	3.0 / 1040	tilting	Y	1/2000s	30/s	Y	Y
6.		Canon G9 X	none	n	3.0 / 1040	fixed	Y	1/2000s	6.0/s	Y	Y
7.		Canon M3	optional	n	3.0 / 1040	tilting	Y	1/4000s	4.2/s	Y	n
8.		Nikon D5300	optical	n	3.2 / 1037	swivel	n	1/4000s	5.0/s	Y	n
9.		Nikon D5600	optical	n	3.2 / 1037	swivel	Y	1/4000s	5.0/s	Y	n
10.		Nikon Z50	2360	n	3.2 / 1040	tilting	Y	1/4000s	11.0/s	Y	n
11.		Nikon Z fc	2360	Y	3.0 / 1040	swivel	Y	1/4000s	11.0/s	n	n
12.		Panasonic LX10	none	n	3.0 / 1040	tilting	Y	1/4000s	10.0/s	Y	Y
13.		Sony RX100 II	optional	n	3.0 / 1229	tilting	n	1/2000s	10.0/s	Y	Y
14.		Sony RX100 III	1440	n	3.0 / 1229	tilting	n	1/2000s	10.0/s	Y	Y
15.		Sony RX100 IV	2359	n	3.0 / 1228	tilting	n	1/2000s	16.0/s	Y	Y
16.		Sony RX100 V	2359	n	3.0 / 1229	tilting	n	1/2000s	24.0/s	Y	Y
17.		Sony ZV-E10	none	n	3.0 / 922	swivel	Y	1/4000s	11.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the Z30 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Canon G7 X Mark II and the Nikon Z30 both have 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.

Concerning the storage of imaging data, both the G7X Mark II and the Z30 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.

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 PowerShot G7 X Mark II and Nikon Z30 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections

		Camera Model	Hotshoe Port	Internal Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Canon G7 X Mark II	-	stereo / mono	-	-	micro	2.0	Y	Y	-
2.		Nikon Z30	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
3.		Canon G5 X	Y	stereo / mono	-	-	mini	2.0	Y	Y	-
4.		Canon G7 X	-	stereo / mono	-	-	micro	2.0	Y	Y	-
5.		Canon G7 X Mark III	-	stereo / mono	Y	-	micro	3.1	Y	-	Y
6.		Canon G9 X	-	stereo / mono	-	-	micro	2.0	Y	Y	-
7.		Canon M3	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
8.		Nikon D5300	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
9.		Nikon D5600	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
10.		Nikon Z50	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
11.		Nikon Z fc	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
12.		Panasonic LX10	-	stereo / mono	-	-	micro	2.0	Y	-	-
13.		Sony RX100 II	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
14.		Sony RX100 III	-	stereo / mono	-	-	micro	2.0	Y	Y	-
15.		Sony RX100 IV	-	stereo / mono	-	-	micro	2.0	Y	Y	-
16.		Sony RX100 V	-	stereo / mono	-	-	micro	2.0	Y	Y	-
17.		Sony ZV-E10	Y	stereo / mono	Y	Y	micro	3.2	Y	Y	Y

It is notable that the Z30 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The G7X Mark II does not feature such a mic input.

The Z30 is a recent model that features in the current product line-up of Nikon. In contrast, the G7X Mark II has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the G7X Mark II was succeeded by the Canon G7 X Mark III. Further information on the features and operation of the G7X Mark II and Z30 can be found, respectively, in the Canon G7 X Mark II Manual (free pdf) or the online Nikon Z30 Manual.

Review summary

So how do things add up? Which of the two cameras – the Canon G7 X Mark II or the Nikon Z30 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

Advantages of the Canon PowerShot G7 X Mark II:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Ready to shoot: Has a lens built-in, whereas the Z30 requires a separate lens.
• More compact: Is smaller (106x61mm vs 128x74mm) and thus needs less room in the bag.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the Z30).
• Sharper images: Has hand-shake reducing image stabilization built-in.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More heavily discounted: Has been available for much longer (launched in February 2016).

Arguments in favor of the Nikon Z30:

• 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: The sensor size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
• Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• Better sound: Can connect to an external microphone for higher quality sound recording.
• 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.
• Faster burst: Shoots at higher frequency (11 vs 8 flaps/sec) to capture the decisive moment.
• Less disturbing: Has an electronic shutter option for completely silent shooting.
• More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
• Longer lasting: Gets more shots (330 versus 265) out of a single battery charge.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More modern: Reflects 6 years and 4 months of technical progress since the G7X Mark II launch.

If the number of relative strengths (bullet points above) is taken as a guide, the Z30 is the clear winner of the contest (19 : 8 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 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 G7 X Mark II and the Nikon Z30 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens 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 G7X Mark II and the Z30 in practical situations. 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 expert reviews 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.

Expert Camera Reviews

		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price	Street Price
1.		Canon G7 X Mark II	4.5/5	+ +	..	81/100	4.5/5	4.5/5	Feb 2016	US$ 699	ebay.com
2.		Nikon Z30	4/5	..	4/5	86/100	4.5/5	4/5	Jun 2022	US$ 709	amazon.com
3.		Canon G5 X	5/5	+ +	..	78/100	4.5/5	4.5/5	Oct 2015	US$ 799	ebay.com
4.		Canon G7 X	4/5	+ +	..	77/100	4.5/5	4.5/5	Sep 2014	US$ 699	ebay.com
5.		Canon G7 X Mark III	..	+ +	4/5	81/100	4/5	..	Jul 2019	US$ 749	amazon.com
6.		Canon G9 X	3.5/5	+ +	..	..	4.5/5	4.5/5	Oct 2015	US$ 529	ebay.com
7.		Canon M3	4/5	o	..	75/100	4.5/5	4/5	Feb 2015	US$ 679	ebay.com
8.		Nikon D5300	4/5	+ +	..	79/100	4.5/5	4.5/5	Oct 2013	US$ 799	ebay.com
9.		Nikon D5600	4/5	..	4/5	79/100	4.5/5	4/5	Nov 2016	US$ 699	ebay.com
10.		Nikon Z50	5/5	..	5/5	85/100	4.5/5	4.5/5	Oct 2019	US$ 859	amazon.com
11.		Nikon Z fc	4/5	..	4.5/5	86/100	5/5	4.5/5	Jun 2021	US$ 959	amazon.com
12.		Panasonic LX10	..	+ +	4/5	81/100	4/5	4.5/5	Sep 2016	US$ 699	amazon.com
13.		Sony RX100 II	5/5	+ +	..	79/100	4.5/5	4.5/5	Jun 2013	US$ 749	ebay.com
14.		Sony RX100 III	5/5	+ +	..	82/100	4.5/5	5/5	May 2014	US$ 799	ebay.com
15.		Sony RX100 IV	4.5/5	+ +	..	85/100	4/5	4.5/5	Jun 2015	US$ 999	ebay.com
16.		Sony RX100 V	4.5/5	+ +	..	83/100	4/5	4.5/5	Oct 2016	US$ 999	ebay.com
17.		Sony ZV-E10	4/5	..	4/5	82/100	4.5/5	4.5/5	Jul 2021	US$ 699	amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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, please note that some of the review sites have changed their methodology and reporting over time.

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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 a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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