Sony HX99 vs Canon G9 X

The Sony Cyber-shot DSC-HX99 and the Canon PowerShot G9 X are two digital cameras that were announced, respectively, in August 2018 and October 2015. Both the HX99 and the G9X are fixed lens compact cameras that are based on a 1/2.3-inch (HX99) and an one-inch (G9X) sensor. The Sony has a resolution of 18 megapixels, whereas the Canon provides 20 MP.

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

Headline Specifications

Sony HX99		Canon G9 X
Fixed lens compact camera		Fixed lens compact camera
24-720mm f/3.5-6.4		28-84mm f/2.0-4.9
18 MP – 1/2.3" sensor		20 MP – 1" sensor
4K/30p Video		1080/60p Video
ISO 80-3,200 (80 - 6,400)		ISO 125-12,800
Electronic viewfinder (638k dots)		No viewfinder, LCD framing
3.0" LCD – 922k dots		3.0" LCD – 1040k dots
Tilting touchscreen		Fixed touchscreen
10 shutter flaps per second		6 shutter flaps per second
370 shots per battery charge		220 shots per battery charge
102 x 58 x 36 mm, 242 g		98 x 58 x 31 mm, 209 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Cyber-shot DSC-HX99 and the Canon PowerShot G9 X? 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 Sony HX99 and the Canon G9 X 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.

The G9X can be obtained in two different colors (black, silver), while the HX99 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 Canon G9 X is somewhat smaller (4 percent) than the Sony HX99. Moreover, the G9X is markedly lighter (14 percent) than the HX99. In this context, it is worth noting that neither the HX99 nor the G9X are weather-sealed.

Concerning battery life, the HX99 gets 370 shots out of its Sony NP-BX1 battery, while the G9X can take 220 images on a single charge of its Canon NB-13L power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

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, 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 (USD)	Street Price
1.		Sony HX99	102 mm	58 mm	36 mm	242 g	370	n	Aug 2018	449	ebay.com
2.		Canon G9 X	98 mm	58 mm	31 mm	209 g	220	n	Oct 2015	529	ebay.com
3.		Canon G5 X	112 mm	76 mm	44 mm	353 g	210	n	Oct 2015	799	ebay.com
4.		Canon G9 X Mark II	98 mm	58 mm	31 mm	206 g	235	n	Jan 2017	529	ebay.com
5.		Canon M10	108 mm	67 mm	35 mm	301 g	255	n	Oct 2015	499	ebay.com
6.		Canon SX70	127 mm	91 mm	117 mm	608 g	325	n	Sep 2018	549	amazon.com
7.		Canon SX730	110 mm	64 mm	40 mm	300 g	250	n	Apr 2017	399	ebay.com
8.		Canon SX740	110 mm	64 mm	40 mm	299 g	265	n	Jul 2018	399	amazon.com
9.		Nikon 1 J4	100 mm	60 mm	29 mm	232 g	300	n	Apr 2014	549	ebay.com
10.		Nikon A1000	114 mm	72 mm	41 mm	330 g	250	n	Jan 2019	429	ebay.com
11.		Nikon W300	112 mm	66 mm	29 mm	231 g	280	Y	May 2017	389	ebay.com
12.		Panasonic ZS70	112 mm	67 mm	41 mm	322 g	380	n	Apr 2017	449	ebay.com
13.		Sony HX90V	102 mm	58 mm	36 mm	245 g	360	n	Apr 2015	429	ebay.com
14.		Sony HX95	102 mm	58 mm	36 mm	242 g	370	n	Aug 2018	429	ebay.com
15.		Sony HX400V	130 mm	93 mm	103 mm	660 g	300	n	Feb 2014	499	ebay.com
16.		Sony RX100 IV	102 mm	58 mm	41 mm	298 g	280	n	Jun 2015	999	ebay.com
17.		Sony WX800	102 mm	58 mm	36 mm	233 g	370	n	Oct 2018	399	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

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The HX99 was launched at a somewhat lower price (by 15 percent) than the G9X, which makes it more attractive for photographers on a tight budget. 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 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Sony HX99 features a 1/2.3-inch sensor and the Canon G9 X an one-inch sensor. The sensor area in the G9X is 314 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 2.7. The sensor in the HX99 has a native 4:3 aspect ratio, while the one in the G9X offers a 3:2 aspect.

With 20MP, the G9X offers a higher resolution than the HX99 (18MP), but the G9X nevertheless has larger individual pixels (pixel pitch of 2.41μm versus 1.25μm for the HX99) due to its larger sensor. However, the HX99 is a much more recent model (by 2 years and 10 months) than the G9X, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the HX99 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Canon G9 X implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G9X for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Sony HX99 are 24.5 x 18.4 inches or 62.2 x 46.6 cm for good quality, 19.6 x 14.7 inches or 49.7 x 37.3 cm for very good quality, and 16.3 x 12.2 inches or 41.5 x 31.1 cm for excellent quality prints.

The Sony Cyber-shot DSC-HX99 has a native sensitivity range from ISO 80 to ISO 3200, which can be extended to ISO 80-6400. The corresponding ISO settings for the Canon PowerShot G9 X are ISO 125 to ISO 12800 (no boost).

In terms of underlying technology, the HX99 is build around a CMOS sensor, while the G9X uses a BSI-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.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Sony HX99	1/2.3	18.0	4896	3672	4K/30p	20.6	12.1	1058	51
2.		Canon G9 X	1-inch	20.0	5472	3648	1080/60p	21.5	12.3	495	63
3.		Canon G5 X	1-inch	20.0	5472	3648	1080/60p	21.4	12.3	471	62
4.		Canon G9 X Mark II	1-inch	20.0	5472	3648	1080/60p	21.9	12.5	522	65
5.		Canon M10	APS-C	17.9	5184	3456	1080/30p	22.2	11.4	753	65
6.		Canon SX70	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1063	51
7.		Canon SX730	1/2.3	20.2	5184	3888	1080/60p	20.5	11.9	924	50
8.		Canon SX740	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1050	51
9.		Nikon 1 J4	1-inch	18.2	5232	3488	1080/60p	20.8	10.7	426	53
10.		Nikon A1000	1/2.3	15.9	4608	3456	4K/30p	20.7	12.2	1095	52
11.		Nikon W300	1/2.3	15.9	4608	3456	4K/30p	20.5	12.0	938	50
12.		Panasonic ZS70	1/2.3	20.2	5184	3888	4K/30p	19.1	10.6	106	36
13.		Sony HX90V	1/2.3	18.0	4896	3672	1080/60p	20.2	11.6	738	47
14.		Sony HX95	1/2.3	18.0	4896	3672	4K/30p	20.6	12.1	1057	51
15.		Sony HX400V	1/2.3	20.2	5184	3888	1080/60p	20.1	11.4	629	45
16.		Sony RX100 IV	1-inch	20.0	5472	3648	4K/30p	22.8	12.6	591	70
17.		Sony WX800	1/2.3	18.0	4896	3672	4K/30p	20.6	12.2	1070	51
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the HX99 provides a higher video resolution than the G9X. It can shoot video footage at 4K/30p, while the Canon is limited to 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the HX99 has an electronic viewfinder (638k dots), which can be very helpful when shooting in bright sunlight. In contrast, the G9X relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Sony HX99, the Canon G9 X, and comparable cameras.

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.		Sony HX99	638	n	3.0 / 922	tilting	Y	1/2000s	10.0/s	Y	Y
2.		Canon G9 X	none	n	3.0 / 1040	fixed	Y	1/2000s	6.0/s	Y	Y
3.		Canon G5 X	2360	n	3.0 / 1040	swivel	Y	1/2000s	5.9/s	Y	Y
4.		Canon G9 X Mark II	none	n	3.0 / 1040	fixed	Y	1/2000s	8.2/s	Y	Y
5.		Canon M10	none	n	3.0 / 1040	tilting	Y	1/4000s	4.6/s	Y	n
6.		Canon SX70	2360	n	3.0 / 922	swivel	n	1/2000s	10.0/s	Y	Y
7.		Canon SX730	none	n	3.0 / 922	tilting	n	1/3200s	5.9/s	Y	Y
8.		Canon SX740	none	n	3.0 / 922	tilting	n	1/3200s	10.0/s	Y	Y
9.		Nikon 1 J4	none	n	3.0 / 1037	Fixed	Y	1/4000s	60.0/s	Y	n
10.		Nikon A1000	1166	n	3.0 / 1036	tilting	Y	1/4000s	7.0/s	Y	Y
11.		Nikon W300	none	n	3.0 / 921	fixed	n	1/4000s	7.0/s	Y	Y
12.		Panasonic ZS70	1166	n	3.0 / 1040	tilting	Y	1/2000s	10.0/s	Y	Y
13.		Sony HX90V	638	n	3.0 / 921	tilting	n	1/2000s	10.0/s	Y	Y
14.		Sony HX95	638	n	3.0 / 922	tilting	n	1/2000s	10.0/s	Y	Y
15.		Sony HX400V	210	n	3.0 / 921	tilting	n	1/4000s	10.0/s	Y	Y
16.		Sony RX100 IV	2359	n	3.0 / 1228	tilting	n	1/2000s	16.0/s	Y	Y
17.		Sony WX800	none	n	3.0 / 922	tilting	Y	1/2000s	10.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The Canon G9 X has 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.

Both the HX99 and the G9X have zoom lenses built in. The HX99 has a 24-720mm f/3.5-6.4 optic and the G9X offers a 28-84mm f/2.0-4.9 (focal lengths in full frame equivalent terms). Hence, the Sony provides a wider angle of view at the short end, as well as more tele-photo reach at the long end than the Canon. The G9X offers the faster maximum aperture.

The HX99 writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the G9X uses 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 Sony Cyber-shot DSC-HX99 and Canon PowerShot G9 X 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.		Sony HX99	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
2.		Canon G9 X	-	stereo / mono	-	-	micro	2.0	Y	Y	-
3.		Canon G5 X	Y	stereo / mono	-	-	mini	2.0	Y	Y	-
4.		Canon G9 X Mark II	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
5.		Canon M10	-	stereo / mono	-	-	mini	2.0	Y	Y	-
6.		Canon SX70	-	stereo / mono	Y	-	micro	2.0	Y	-	Y
7.		Canon SX730	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
8.		Canon SX740	-	stereo / mono	-	-	micro	2.0	Y	-	Y
9.		Nikon 1 J4	-	stereo / mono	-	-	mini	2.0	Y	-	-
10.		Nikon A1000	-	stereo / mono	-	-	micro	2.0	Y	-	Y
11.		Nikon W300	-	stereo / mono	-	-	micro	2.0	Y	-	Y
12.		Panasonic ZS70	-	stereo / mono	-	-	micro	2.0	Y	-	-
13.		Sony HX90V	-	stereo / mono	-	-	micro	2.0	Y	Y	-
14.		Sony HX95	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
15.		Sony HX400V	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
16.		Sony RX100 IV	-	stereo / mono	-	-	micro	2.0	Y	Y	-
17.		Sony WX800	-	stereo / mono	-	-	micro	2.0	Y	Y	-

Both the HX99 and the G9X have been discontinued, but can regularly be found used on ebay. The G9X was replaced by the Canon G9 X Mark II, while the HX99 does not have a direct successor. Further information on the features and operation of the HX99 and G9X can be found, respectively, in the Sony HX99 Manual (free pdf) or the online Canon G9 X Manual.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Sony HX99 or the Canon G9 X – 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.

Arguments in favor of the Sony Cyber-shot DSC-HX99:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
• Easier framing: Has an electronic viewfinder for image composition and settings control.
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
• Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
• More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
• Longer lasting: Can take more shots (370 versus 220) on a single battery charge.
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More affordable: Was introduced into a lower priced segment (15 percent cheaper at launch).
• More modern: Reflects 2 years and 10 months of technical progress since the G9X launch.

Reasons to prefer the Canon PowerShot G9 X:

• More detail: Has more megapixels (20 vs 18MP), which boosts linear resolution by 7%.
• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
• Richer colors: The pixel size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
• More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Better light gathering: Has a lens with a wider maximum aperture (f/2.0 vs f/3.5).
• Less heavy: Has a lower weight (by 33g or 14 percent) and is thus easier to take along.
• More heavily discounted: Has been around for much longer (launched in October 2015).

If the count of relative strengths (bullet points above) is taken as a measure, the HX99 comes out slightly ahead of the G9X (12 : 11 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. 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 Sony HX99 and the Canon G9 X place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best Travel-Zoom Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the HX99 or the G9X 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.

Expert reviews

This is where reviews by experts come in. 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 (USD)	Street Price
1.		Sony HX99	..	..	..	..	4/5	4.5/5	Aug 2018	449	ebay.com
2.		Canon G9 X	3.5/5	+ +	..	..	4.5/5	4.5/5	Oct 2015	529	ebay.com
3.		Canon G5 X	5/5	+ +	..	78/100	4.5/5	4.5/5	Oct 2015	799	ebay.com
4.		Canon G9 X Mark II	4/5	..	4/5	75/100	4.5/5	4.5/5	Jan 2017	529	ebay.com
5.		Canon M10	..	..	..	..	..	4/5	Oct 2015	499	ebay.com
6.		Canon SX70	..	+ +	3.5/5	..	3.5/5	3.5/5	Sep 2018	549	amazon.com
7.		Canon SX730	..	+	..	..	4/5	4/5	Apr 2017	399	ebay.com
8.		Canon SX740	..	+	3.5/5	..	4/5	4/5	Jul 2018	399	amazon.com
9.		Nikon 1 J4	3/5	..	..	..	4.5/5	4/5	Apr 2014	549	ebay.com
10.		Nikon A1000	..	+ +	3.5/5	..	3.5/5	3/5	Jan 2019	429	ebay.com
11.		Nikon W300	..	+	..	..	4/5	4/5	May 2017	389	ebay.com
12.		Panasonic ZS70	..	+ +	..	..	4/5	4/5	Apr 2017	449	ebay.com
13.		Sony HX90V	4/5	+ +	..	..	4/5	4.5/5	Apr 2015	429	ebay.com
14.		Sony HX95	..	..	..	..	..	..	Aug 2018	429	ebay.com
15.		Sony HX400V	4/5	+ +	..	..	4/5	4/5	Feb 2014	499	ebay.com
16.		Sony RX100 IV	4.5/5	+ +	..	85/100	4/5	4.5/5	Jun 2015	999	ebay.com
17.		Sony WX800	..	..	..	..	..	..	Oct 2018	399	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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.

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Other camera comparisons

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