Canon G16 vs SX420

The Canon PowerShot G16 and the Canon PowerShot SX420 IS are two digital cameras that were officially introduced, respectively, in August 2013 and January 2016. Both the G16 and the SX420 are fixed lens compact cameras that are based on a 1/1.7-inch (G16) and a 1/2.3-inch (SX420) sensor. The G16 has a resolution of 12 megapixels, whereas the SX420 provides 19.9 MP.

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

Headline Specifications

Canon G16		Canon SX420
Fixed lens compact camera		Fixed lens compact camera
28-140mm f/1.8-2.8		24-1008mm f/3.5-6.6
12 MP – 1/1.7" sensor		19.9 MP – 1/2.3" sensor
1080/60p Video		720/25p Video
ISO 80-12,800		ISO 100-1,600
Optical viewfinder		No viewfinder, LCD framing
3.0" LCD – 922k dots		3.0" LCD – 230k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
2.2 shutter flaps per second		0.5 shutter flaps per second
360 shots per battery charge		195 shots per battery charge
109 x 76 x 40 mm, 356 g		104 x 69 x 85 mm, 325 g

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Check SX420 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G16 and the Canon PowerShot SX420 IS? 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

The side-by-side display below illustrates the physical size and weight of the Canon G16 and the Canon SX420. 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.

The SX420 can be obtained in two different colors (black, red), while the G16 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 SX420 is notably smaller (13 percent) than the Canon G16. Moreover, the SX420 is markedly lighter (9 percent) than the G16. In this context, it is worth noting that neither the G16 nor the SX420 are weather-sealed.

Concerning battery life, the G16 gets 360 shots out of its Canon NB-10L battery, while the SX420 can take 195 images on a single charge of its Canon NB-11LH power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras 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 G16	109 mm	76 mm	40 mm	356 g	360	n	Aug 2013	US$ 549	ebay.com
2.		Canon SX420	104 mm	69 mm	85 mm	325 g	195	n	Jan 2016	US$ 299	ebay.com
3.		Canon 100D	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	US$ 549	ebay.com
4.		Canon G1 X	117 mm	81 mm	65 mm	534 g	250	n	Jan 2012	US$ 799	ebay.com
5.		Canon G1 X Mark II	116 mm	74 mm	66 mm	553 g	240	n	Feb 2014	US$ 799	ebay.com
6.		Canon G5 X	112 mm	76 mm	44 mm	353 g	210	n	Oct 2015	US$ 799	ebay.com
7.		Canon G7 X Mark II	106 mm	61 mm	42 mm	319 g	265	n	Feb 2016	US$ 699	ebay.com
8.		Canon G12	112 mm	76 mm	48 mm	401 g	370	n	Sep 2010	US$ 499	ebay.com
9.		Canon G15	107 mm	76 mm	40 mm	352 g	350	n	Sep 2012	US$ 499	ebay.com
10.		Canon M	109 mm	66 mm	32 mm	298 g	230	n	Jul 2012	US$ 599	ebay.com
11.		Canon SX410	104 mm	69 mm	85 mm	325 g	185	n	Feb 2015	US$ 279	ebay.com
12.		Canon SX430	104 mm	69 mm	85 mm	323 g	195	n	Jan 2017	US$ 299	ebay.com
13.		Canon SX710	113 mm	66 mm	35 mm	269 g	230	n	Jan 2015	US$ 349	ebay.com
14.		Fujifilm X20	117 mm	70 mm	57 mm	353 g	270	n	Jan 2013	US$ 599	ebay.com
15.		Fujifilm X30	119 mm	72 mm	60 mm	423 g	470	n	Aug 2014	US$ 599	ebay.com
16.		Nikon P7800	119 mm	78 mm	50 mm	399 g	350	n	Sep 2013	US$ 549	ebay.com
17.		Panasonic LX7	111 mm	68 mm	46 mm	298 g	330	n	Jul 2012	US$ 499	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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The SX420 was launched at a markedly lower price (by 46 percent) than the G16, which puts it into a different market segment. 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon G16 features a 1/1.7-inch sensor and the Canon SX420 a 1/2.3-inch sensor. The sensor area in the SX420 is 33 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.65 and 5.6. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

In terms of chip-set technology, the G16 uses a more advanced image processing engine (DIGIC 6) than the SX420 (DIGIC 4+), with benefits for noise reduction, color accuracy, and processing speed.

Despite having a smaller sensor, the SX420 offers a higher resolution of 19.9 megapixels, compared with 12 MP of the G16. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.19μm versus 1.87μm for the G16). However, it should be noted that the SX420 is much more recent (by 2 years and 4 months) than the G16, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the SX420 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Canon SX420 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX420 for good quality output (200 dots per inch) amounts to 25.8 x 19.3 inches or 65.4 x 49.1 cm, for very good quality (250 dpi) 20.6 x 15.5 inches or 52.3 x 39.3 cm, and for excellent quality (300 dpi) 17.2 x 12.9 inches or 43.6 x 32.7 cm. The corresponding values for the Canon G16 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

The Canon PowerShot G16 has a native sensitivity range from ISO 80 to ISO 12800. The corresponding ISO settings for the Canon PowerShot SX420 IS are ISO 100 to ISO 1600 (no boost).

In terms of underlying technology, the G16 is build around a BSI-CMOS sensor, while the SX420 uses a CCD 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 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 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.		Canon G16	1/1.7	12.0	4000	3000	1080/60p	21.0	11.7	230	54
2.		Canon SX420	1/2.3	19.9	5152	3864	720/25p	20.3	11.7	806	48
3.		Canon 100D	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
4.		Canon G1 X	1.5-inch	14.2	4352	3264	1080/24p	21.7	10.8	644	60
5.		Canon G1 X Mark II	1.5-inch	13.0	4160	3120	1080/30p	21.5	10.8	581	58
6.		Canon G5 X	1-inch	20.0	5472	3648	1080/60p	21.4	12.3	471	62
7.		Canon G7 X Mark II	1-inch	20.0	5472	3648	1080/60p	21.8	11.9	260	62
8.		Canon G12	1/1.7	10.0	3648	2736	720/24p	20.4	11.2	161	47
9.		Canon G15	1/1.7	12.0	4000	3000	1080/24p	19.9	11.5	165	46
10.		Canon M	APS-C	17.9	5184	3456	1080/30p	22.1	11.2	827	65
11.		Canon SX410	1/2.3	19.9	5152	3864	720/30p	20.2	11.6	720	47
12.		Canon SX430	1/2.3	19.9	5152	3864	720/25p	20.5	11.9	900	49
13.		Canon SX710	1/2.3	20.2	5184	3888	1080/60p	20.2	11.6	712	47
14.		Fujifilm X20	2/3	12.0	4000	3000	1080/60p	20.1	10.9	-462	46
15.		Fujifilm X30	2/3	12.0	4000	3000	1080/60p	20.4	11.2	-312	49
16.		Nikon P7800	1/1.7	12.0	4000	3000	1080/30p	21.2	11.7	200	54
17.		Panasonic LX7	1/1.7	10.0	3648	2736	1080/60p	20.7	11.7	147	50
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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the G16 provides a higher video resolution than the SX420. It can shoot video footage at 1080/60p, while the SX420 is limited to 720/25p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G16 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the SX420 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon G16, the Canon SX420, 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.		Canon G16	optical	n	3.0 / 922	fixed	n	1/4000s	2.2/s	Y	Y
2.		Canon SX420	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
3.		Canon 100D	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
4.		Canon G1 X	optical	n	3.0 / 922	swivel	n	1/4000s	1.9/s	Y	Y
5.		Canon G1 X Mark II	optional	n	3.0 / 1040	tilting	Y	1/4000s	5.2/s	Y	Y
6.		Canon G5 X	2360	n	3.0 / 1040	swivel	Y	1/2000s	5.9/s	Y	Y
7.		Canon G7 X Mark II	none	n	3.0 / 1040	tilting	Y	1/2000s	8.0/s	Y	Y
8.		Canon G12	optical	n	2.8 / 461	swivel	n	1/4000s	1.1/s	Y	Y
9.		Canon G15	optical	n	3.0 / 922	fixed	n	1/4000s	2.1/s	Y	Y
10.		Canon M	none	n	3.0 / 1040	fixed	Y	1/4000s	4.3/s	n	n
11.		Canon SX410	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
12.		Canon SX430	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
13.		Canon SX710	none	n	3.0 / 922	fixed	n	1/3200s	6.0/s	Y	Y
14.		Fujifilm X20	optical	n	2.8 / 460	fixed	n	1/4000s	12.0/s	Y	Y
15.		Fujifilm X30	2360	n	3.0 / 920	tilting	n	1/4000s	12.0/s	Y	Y
16.		Nikon P7800	921	n	3.0 / 921	swivel	n	1/4000s	8.0/s	Y	Y
17.		Panasonic LX7	optional	n	3.0 / 920	fixed	n	1/4000s	11.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The Canon G16 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 G16 and the SX420 have zoom lenses built in. The G16 has a 28-140mm f/1.8-2.8 optic and the SX420 offers a 24-1008mm f/3.5-6.6 (focal lengths in full frame equivalent terms). Hence, the SX420 provides a wider angle of view at the short end, as well as more tele-photo reach at the long end than the G16. The G16 offers the faster maximum aperture.

Concerning the storage of imaging data, both the G16 and the SX420 write their files to SDXC cards. The G16 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the SX420 cannot take advantage of Ultra High Speed SD cards.

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 G16 and Canon PowerShot SX420 IS 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 G16	Y	stereo / mono	-	-	mini	2.0	Y	-	-
2.		Canon SX420	-	mono / mono	-	-	-	2.0	Y	Y	-
3.		Canon 100D	Y	mono / mono	Y	-	mini	2.0	-	-	-
4.		Canon G1 X	Y	stereo / mono	-	-	mini	2.0	-	-	-
5.		Canon G1 X Mark II	Y	stereo / mono	-	-	mini	2.0	Y	Y	-
6.		Canon G5 X	Y	stereo / mono	-	-	mini	2.0	Y	Y	-
7.		Canon G7 X Mark II	-	stereo / mono	-	-	micro	2.0	Y	Y	-
8.		Canon G12	Y	stereo / mono	-	-	mini	2.0	-	-	-
9.		Canon G15	Y	stereo / mono	-	-	mini	2.0	-	-	-
10.		Canon M	Y	stereo / mono	Y	-	mini	2.0	-	-	-
11.		Canon SX410	-	stereo / mono	-	-	-	2.0	-	-	-
12.		Canon SX430	-	mono / mono	-	-	-	2.0	Y	Y	-
13.		Canon SX710	-	stereo / mono	-	-	micro	2.0	Y	Y	-
14.		Fujifilm X20	Y	stereo / mono	-	-	micro	2.0	-	-	-
15.		Fujifilm X30	Y	stereo / mono	-	-	micro	2.0	Y	-	-
16.		Nikon P7800	Y	stereo / mono	Y	-	mini	2.0	-	-	-
17.		Panasonic LX7	Y	stereo / mono	-	-	mini	2.0	-	-	-

It is notable that the G16 has a hotshoe, while the SX420 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Both the G16 and the SX420 have been discontinued, but can regularly be found used on ebay. The SX420 was replaced by the Canon SX430, while the G16 does not have a direct successor. Further information on the features and operation of the G16 and SX420 can be found, respectively, in the Canon G16 Manual (free pdf) or the online Canon SX420 Manual.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Canon G16 and the Canon SX420? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Arguments in favor of the Canon PowerShot G16:

• 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.
• Better jpgs: Has a more modern image processing engine (DIGIC 6 vs DIGIC 4+).
• Better video: Provides higher definition movie capture (1080/60p vs 720/25p).
• Easier framing: Has an optical viewfinder for image composition and settings control.
• More detailed LCD: Has a higher resolution rear screen (922k vs 230k dots).
• Faster burst: Shoots at higher frequency (2.2 vs 0.5 flaps/sec) to capture the decisive moment.
• 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/1.8 vs f/3.5).
• Longer lasting: Can take more shots (360 versus 195) on a single battery charge.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More heavily discounted: Has been available for much longer (launched in August 2013).

Advantages of the Canon PowerShot SX420 IS:

• More detail: Has more megapixels (19.9 vs 12MP), which boosts linear resolution by 29%.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• 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.
• More compact: Is smaller (104x69mm vs 109x76mm) and will fit more readily into a bag.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More affordable: Was introduced into a lower priced category (46 percent cheaper at launch).
• More modern: Reflects 2 years and 4 months of technical progress since the G16 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the G16 is the clear winner of the match-up (16 : 8 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 Canon G16 and the Canon SX420 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Superzoom Camera listings whether the two cameras rank among the cream of the crop.

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 G16 or the SX420 perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 G16	4/5	+	..	..	4.5/5	4.5/5	Aug 2013	US$ 549	ebay.com
2.		Canon SX420	..	..	..	..	..	3/5	Jan 2016	US$ 299	ebay.com
3.		Canon 100D	4/5	+	..	78/100	4/5	4/5	Mar 2013	US$ 549	ebay.com
4.		Canon G1 X	5/5	+	..	76/100	4/5	4.5/5	Jan 2012	US$ 799	ebay.com
5.		Canon G1 X Mark II	3/5	+	..	77/100	4/5	4.5/5	Feb 2014	US$ 799	ebay.com
6.		Canon G5 X	5/5	+ +	..	78/100	4.5/5	4.5/5	Oct 2015	US$ 799	ebay.com
7.		Canon G7 X Mark II	4.5/5	+ +	..	81/100	4.5/5	4.5/5	Feb 2016	US$ 699	ebay.com
8.		Canon G12	4/5	+	..	73/100	4.5/5	4.5/5	Sep 2010	US$ 499	ebay.com
9.		Canon G15	4/5	+	..	76/100	4.5/5	4.5/5	Sep 2012	US$ 499	ebay.com
10.		Canon M	3/5	+	..	..	4/5	4/5	Jul 2012	US$ 599	ebay.com
11.		Canon SX410	..	o	..	..	..	..	Feb 2015	US$ 279	ebay.com
12.		Canon SX430	..	..	..	..	3.5/5	3.5/5	Jan 2017	US$ 299	ebay.com
13.		Canon SX710	..	+	..	..	4/5	3.5/5	Jan 2015	US$ 349	ebay.com
14.		Fujifilm X20	4/5	+ +	..	77/100	4.5/5	5/5	Jan 2013	US$ 599	ebay.com
15.		Fujifilm X30	4/5	..	..	76/100	4.5/5	4.5/5	Aug 2014	US$ 599	ebay.com
16.		Nikon P7800	3/5	..	..	..	4/5	4.5/5	Sep 2013	US$ 549	ebay.com
17.		Panasonic LX7	3/5	+ +	..	75/100	4/5	4.5/5	Jul 2012	US$ 499	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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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