Canon G9 X Mark II vs Samsung NX30

The Canon PowerShot G9 X Mark II and the Samsung NX30 are two digital cameras that were revealed to the public, respectively, in January 2017 and January 2014. The G9X Mark II is a fixed lens compact, while the NX30 is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (G9X Mark II) and an APS-C (NX30) sensor. Both cameras offer a resolution of 20 megapixels.

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

Headline Specifications

Canon G9 X Mark II		Samsung NX30
Fixed lens compact camera		Mirrorless system camera
28-84mm f/2.0-4.9		Samsung NX mount lenses
20 MP – 1" sensor		20 MP – APS-C sensor
1080/60p Video		1080/60p Video
ISO 125-12,800		ISO 100-25,600
No viewfinder, LCD framing		Electronic viewfinder (2359k dots)
3.0" LCD – 1040k dots		3.0" LCD – 1036k dots
Fixed touchscreen		Swivel touchscreen
8.2 shutter flaps per second		9 shutter flaps per second
235 shots per battery charge		360 shots per battery charge
98 x 58 x 31 mm, 206 g		127 x 96 x 58 mm, 375 g

Check G9X Mark II offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G9 X Mark II and the Samsung NX30? 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 G9 X Mark II and the Samsung NX30 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.

The G9X Mark II can be obtained in two different colors (black, silver), while the NX30 is only available in black.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Samsung NX30 is considerably larger (114 percent) than the Canon G9 X Mark II. In this context, it is worth noting that neither the G9X Mark II nor the NX30 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G9X Mark II has a lens built in, whereas the NX30 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

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 G9 X Mark II	98 mm	58 mm	31 mm	206 g	235	n	Jan 2017	US$ 529	ebay.com
2.		Samsung NX30	127 mm	96 mm	58 mm	375 g	360	n	Jan 2014	US$ 999	ebay.com
3.		Canon G7 X	103 mm	60 mm	40 mm	304 g	210	n	Sep 2014	US$ 699	ebay.com
4.		Canon G7 X Mark II	106 mm	61 mm	42 mm	319 g	265	n	Feb 2016	US$ 699	ebay.com
5.		Canon G9 X	98 mm	58 mm	31 mm	209 g	220	n	Oct 2015	US$ 529	ebay.com
6.		Canon M100	108 mm	67 mm	35 mm	302 g	295	n	Aug 2017	US$ 499	ebay.com
7.		Canon SL2	122 mm	93 mm	70 mm	453 g	650	n	Jun 2017	US$ 549	ebay.com
8.		Canon SX70	127 mm	91 mm	117 mm	608 g	325	n	Sep 2018	US$ 549	amazon.com
9.		Nikon D3300	124 mm	98 mm	76 mm	430 g	700	n	Jan 2014	US$ 499	ebay.com
10.		Nikon D5500	124 mm	97 mm	70 mm	470 g	820	n	Jan 2015	US$ 899	ebay.com
11.		Sony A3000	128 mm	91 mm	85 mm	411 g	470	n	Aug 2013	US$ 329	ebay.com
12.		Sony A6000	120 mm	67 mm	45 mm	344 g	360	n	Feb 2014	US$ 599	ebay.com
13.		Sony A6400	120 mm	67 mm	50 mm	403 g	410	Y	Jan 2019	US$ 899	amazon.com
14.		Sony HX95	102 mm	58 mm	36 mm	242 g	370	n	Aug 2018	US$ 429	ebay.com
15.		Sony HX99	102 mm	58 mm	36 mm	242 g	370	n	Aug 2018	US$ 449	ebay.com
16.		Sony RX100	102 mm	58 mm	36 mm	240 g	330	n	Jun 2012	US$ 649	ebay.com
17.		Sony RX100 V	102 mm	58 mm	41 mm	299 g	220	n	Oct 2016	US$ 999	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

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. The G9X Mark II was launched at a lower price than the NX30, despite having a lens built in. 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

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 G9 X Mark II features an one-inch sensor and the Samsung NX30 an APS-C sensor. The sensor area in the NX30 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.

Even though the NX30 has a larger sensor, both cameras offer the same resolution of 20 megapixels. This implies that the NX30 has a lower pixel density and larger individual pixels (with a pixel pitch of 4.30μm versus 2.41μm for the G9X Mark II), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the G9X Mark II is much more recent (by 3 years) than the NX30, and its sensor will have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the NX30 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The NX30 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon PowerShot G9 X Mark II has a native sensitivity range from ISO 125 to ISO 12800. The corresponding ISO settings for the Samsung NX30 are ISO 100 to ISO 25600 (no boost).

In terms of underlying technology, the G9X Mark II is build around a BSI-CMOS sensor, while the NX30 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. Of the two cameras under consideration, the NX30 offers substantially better image quality than the G9X Mark II (overall score 11 points higher). The advantage is based on 1.6 bits higher color depth, 0.1 EV of lower dynamic range, and 1 stops in additional low light sensitivity. 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 G9 X Mark II	1-inch	20.0	5472	3648	1080/60p	21.9	12.5	522	65
2.		Samsung NX30	APS-C	20.0	5472	3648	1080/60p	23.5	12.4	1014	76
3.		Canon G7 X	1-inch	20.0	5472	3648	1080/60p	23.0	12.7	556	71
4.		Canon G7 X Mark II	1-inch	20.0	5472	3648	1080/60p	21.8	11.9	260	62
5.		Canon G9 X	1-inch	20.0	5472	3648	1080/60p	21.5	12.3	495	63
6.		Canon M100	APS-C	24.0	6000	4000	1080/60p	23.5	12.9	1272	78
7.		Canon SL2	APS-C	24.0	6000	4000	1080/60p	23.6	13.4	1041	79
8.		Canon SX70	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1063	51
9.		Nikon D3300	APS-C	24.0	6000	4000	1080/60p	24.3	12.8	1385	82
10.		Nikon D5500	APS-C	24.0	6000	4000	1080/60p	24.1	14.0	1438	84
11.		Sony A3000	APS-C	19.8	5456	3632	1080/60i	23.7	12.8	1068	78
12.		Sony A6000	APS-C	24.0	6000	4000	1080/60p	24.1	13.1	1347	82
13.		Sony A6400	APS-C	24.0	6000	4000	4K/30p	24.0	13.6	1431	83
14.		Sony HX95	1/2.3	18.0	4896	3672	4K/30p	20.6	12.1	1057	51
15.		Sony HX99	1/2.3	18.0	4896	3672	4K/30p	20.6	12.1	1058	51
16.		Sony RX100	1-inch	20.0	5472	3648	1080/60p	22.6	12.4	390	66
17.		Sony RX100 V	1-inch	20.0	5472	3648	4K/30p	22.8	12.4	586	70
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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/60p).

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the NX30 has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the G9X 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 G9 X Mark II and Samsung NX30 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 G9 X Mark II	none	n	3.0 / 1040	fixed	Y	1/2000s	8.2/s	Y	Y
2.		Samsung NX30	2359	n	3.0 / 1036	swivel	Y	1/8000s	9.0/s	Y	n
3.		Canon G7 X	none	n	3.0 / 1040	tilting	Y	1/2000s	6.5/s	Y	Y
4.		Canon G7 X Mark II	none	n	3.0 / 1040	tilting	Y	1/2000s	8.0/s	Y	Y
5.		Canon G9 X	none	n	3.0 / 1040	fixed	Y	1/2000s	6.0/s	Y	Y
6.		Canon M100	none	n	3.0 / 1040	tilting	Y	1/4000s	6.1/s	Y	n
7.		Canon SL2	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
8.		Canon SX70	2360	n	3.0 / 922	swivel	n	1/2000s	10.0/s	Y	Y
9.		Nikon D3300	optical	n	3.0 / 921	fixed	n	1/4000s	5.0/s	Y	n
10.		Nikon D5500	optical	n	3.2 / 1037	swivel	Y	1/4000s	5.0/s	Y	n
11.		Sony A3000	202	n	3.0 / 230	fixed	n	1/4000s	2.5/s	Y	n
12.		Sony A6000	1440	n	3.0 / 922	tilting	n	1/4000s	11.0/s	Y	n
13.		Sony A6400	2359	n	3.0 / 922	tilting	Y	1/4000s	11.0/s	Y	n
14.		Sony HX95	638	n	3.0 / 922	tilting	n	1/2000s	10.0/s	Y	Y
15.		Sony HX99	638	n	3.0 / 922	tilting	Y	1/2000s	10.0/s	Y	Y
16.		Sony RX100	none	n	3.0 / 1229	fixed	n	1/2000s	10.0/s	Y	Y
17.		Sony RX100 V	2359	n	3.0 / 1229	tilting	n	1/2000s	24.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The Canon G9 X Mark II and the Samsung NX30 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 G9X Mark II and the NX30 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 G9 X Mark II and Samsung NX30 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 G9 X Mark II	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
2.		Samsung NX30	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
3.		Canon G7 X	-	stereo / mono	-	-	micro	2.0	Y	Y	-
4.		Canon G7 X Mark II	-	stereo / mono	-	-	micro	2.0	Y	Y	-
5.		Canon G9 X	-	stereo / mono	-	-	micro	2.0	Y	Y	-
6.		Canon M100	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
7.		Canon SL2	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
8.		Canon SX70	-	stereo / mono	Y	-	micro	2.0	Y	-	Y
9.		Nikon D3300	Y	mono / mono	Y	-	mini	2.0	-	-	-
10.		Nikon D5500	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
11.		Sony A3000	Y	stereo / mono	-	-	mini	2.0	-	-	-
12.		Sony A6000	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
13.		Sony A6400	Y	stereo / mono	Y	-	micro	2.0	Y	Y	Y
14.		Sony HX95	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
15.		Sony HX99	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
16.		Sony RX100	-	stereo / mono	-	-	micro	2.0	-	-	-
17.		Sony RX100 V	-	stereo / mono	-	-	micro	2.0	Y	Y	-

It is notable that the NX30 has a hotshoe, which makes it possible to easily attach optional accessories, such as an external flash gun. The G9X Mark II does not feature such an accessory-socket.

Both the G9X Mark II and the NX30 have been discontinued, but can regularly be found used on ebay. Neither of the two has a direct successor, so they represent the end of the respective camera lines from Canon and Samsung. Further information on the features and operation of the G9X Mark II and NX30 can be found, respectively, in the Canon G9 X Mark II Manual (free pdf) or the online Samsung NX30 Manual.

Review summary

So how do things add up? Which of the two cameras – the Canon G9 X Mark II or the Samsung NX30 – 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 G9 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 NX30 requires a separate lens.
• More compact: Is smaller (98x58mm vs 127x96mm) and thus needs less room in the bag.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the NX30).
• Sharper images: Has hand-shake reducing image stabilization built-in.
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More modern: Reflects 3 years of technical progress since the NX30 launch.

Arguments in favor of the Samsung NX30:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better image quality: Scores substantially higher (11 points) in the DXO overall evaluation.
• Richer colors: Generates noticeably more natural colors (1.6 bits more color depth).
• Better low-light sensitivity: Can shoot in dim conditions (1 stops ISO advantage).
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• Easier framing: Has an electronic viewfinder for image composition and settings control.
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
• More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
• Longer lasting: Gets more shots (360 versus 235) out of a single battery charge.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• More heavily discounted: Has been around for much longer (launched in January 2014).

If the number of relative strengths (bullet points above) is taken as a guide, the NX30 is the clear winner of the contest (13 : 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 G9 X Mark II and the Samsung NX30 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 G9X Mark II and the NX30 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 G9 X Mark II	4/5	..	4/5	75/100	4.5/5	4.5/5	Jan 2017	US$ 529	ebay.com
2.		Samsung NX30	3/5	..	..	77/100	4.5/5	4.5/5	Jan 2014	US$ 999	ebay.com
3.		Canon G7 X	4/5	+ +	..	77/100	4.5/5	4.5/5	Sep 2014	US$ 699	ebay.com
4.		Canon G7 X Mark II	4.5/5	+ +	..	81/100	4.5/5	4.5/5	Feb 2016	US$ 699	ebay.com
5.		Canon G9 X	3.5/5	+ +	..	..	4.5/5	4.5/5	Oct 2015	US$ 529	ebay.com
6.		Canon M100	3/5	+	..	..	4/5	3.5/5	Aug 2017	US$ 499	ebay.com
7.		Canon SL2	4/5	+ +	4/5	78/100	4.5/5	4.5/5	Jun 2017	US$ 549	ebay.com
8.		Canon SX70	..	+ +	3.5/5	..	3.5/5	3.5/5	Sep 2018	US$ 549	amazon.com
9.		Nikon D3300	3/5	+	..	77/100	4.5/5	4.5/5	Jan 2014	US$ 499	ebay.com
10.		Nikon D5500	5/5	+	..	79/100	4.5/5	4.5/5	Jan 2015	US$ 899	ebay.com
11.		Sony A3000	3/5	+	..	..	4/5	4/5	Aug 2013	US$ 329	ebay.com
12.		Sony A6000	5/5	+	4.5/5	80/100	4.5/5	5/5	Feb 2014	US$ 599	ebay.com
13.		Sony A6400	4/5	+	4/5	85/100	4.5/5	4/5	Jan 2019	US$ 899	amazon.com
14.		Sony HX95	..	..	..	..	..	..	Aug 2018	US$ 429	ebay.com
15.		Sony HX99	..	..	..	..	4/5	4.5/5	Aug 2018	US$ 449	ebay.com
16.		Sony RX100	5/5	+ +	..	78/100	4/5	5/5	Jun 2012	US$ 649	ebay.com
17.		Sony RX100 V	4.5/5	+ +	..	83/100	4/5	4.5/5	Oct 2016	US$ 999	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, 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, 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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