Canon SX710 vs Pentax K-70

The Canon PowerShot SX710 HS and the Pentax K-70 are two digital cameras that were revealed to the public, respectively, in January 2015 and June 2016. The SX710 is a fixed lens compact, while the K-70 is a DSLR. The cameras are based on a 1/2.3-inch (SX710) and an APS-C (K-70) sensor. The Canon has a resolution of 20.2 megapixels, whereas the Pentax provides 24 MP.

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

Headline Specifications

Canon SX710		Pentax K-70
Fixed lens compact camera		Digital single lens reflex
25-750mm f/3.2-6.9		Pentax K mount lenses
20.2 MP – 1/2.3" sensor		24 MP – APS-C sensor
1080/60p Video		1080/60i Video
ISO 80-3,200		ISO 100-102,400
No viewfinder, LCD framing		Optical viewfinder
3.0" LCD – 922k dots		3.0" LCD – 921k dots
Fixed screen (not touch-sensitive)		Swivel screen (not touch-sensitive)
6 shutter flaps per second		6 shutter flaps per second
Lens-based stabilization		In-body stabilization
not weather sealed		Weathersealed body
230 shots per battery charge		410 shots per battery charge
113 x 66 x 35 mm, 269 g		126 x 93 x 74 mm, 688 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX710 HS and the Pentax K-70? 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 SX710 and the Pentax K-70. 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 width, height and depth dimensions are rounded to the nearest millimeter.

The SX710 can be obtained in two different colors (black, red), while the K-70 is also available in two color-versions, but different ones (black, silver).

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-70 is considerably larger (57 percent) than the Canon SX710. It is noteworthy in this context that the K-70 is splash and dust-proof, while the SX710 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX710 has a lens built in, whereas the K-70 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 SX710 gets 230 shots out of its Canon NB-6LH battery, while the K-70 can take 410 images on a single charge of its Pentax D-LI109 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price (USD)	Street Price
1.		Canon SX710	113 mm	66 mm	35 mm	269 g	230	n	Jan 2015	349	ebay.com
2.		Pentax K-70	126 mm	93 mm	74 mm	688 g	410	Y	Jun 2016	649	ebay.com
3.		Canon G7 X Mark II	106 mm	61 mm	42 mm	319 g	265	n	Feb 2016	699	ebay.com
4.		Canon SX410	104 mm	69 mm	85 mm	325 g	185	n	Feb 2015	279	ebay.com
5.		Canon SX420	104 mm	69 mm	85 mm	325 g	195	n	Jan 2016	299	ebay.com
6.		Canon SX430	104 mm	69 mm	85 mm	323 g	195	n	Jan 2017	299	ebay.com
7.		Canon SX540	120 mm	82 mm	92 mm	442 g	205	n	Jan 2016	399	ebay.com
8.		Canon SX700	113 mm	66 mm	35 mm	269 g	250	n	Feb 2014	349	ebay.com
9.		Canon SX720	110 mm	64 mm	36 mm	270 g	250	n	Feb 2016	379	ebay.com
10.		Canon SX730	110 mm	64 mm	40 mm	300 g	250	n	Apr 2017	399	ebay.com
11.		Canon SX740	110 mm	64 mm	40 mm	299 g	265	n	Jul 2018	399	amazon.com
12.		Pentax K-3 II	131 mm	100 mm	77 mm	800 g	720	Y	Apr 2015	1,099	ebay.com
13.		Pentax K-3 III	135 mm	104 mm	74 mm	820 g	800	Y	Mar 2021	1,999	amazon.com
14.		Pentax K-50	130 mm	97 mm	71 mm	650 g	410	Y	Jun 2013	599	ebay.com
15.		Pentax KP	132 mm	101 mm	76 mm	703 g	390	Y	Jan 2017	1,099	ebay.com
16.		Pentax K-S2	123 mm	91 mm	73 mm	678 g	410	Y	Feb 2015	749	ebay.com
17.		Sony HX80	102 mm	58 mm	36 mm	245 g	390	n	Mar 2016	349	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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The SX710 was launched at a lower price than the K-70, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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. 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 Canon SX710 features a 1/2.3-inch sensor and the Pentax K-70 an APS-C sensor. The sensor area in the K-70 is 1211 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 1.5. The sensor in the SX710 has a native 4:3 aspect ratio, while the one in the K-70 offers a 3:2 aspect.

With 24MP, the K-70 offers a higher resolution than the SX710 (20.2MP), but the K-70 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 1.18μm for the SX710) due to its larger sensor. Moreover, the K-70 is a somewhat more recent model (by 1 year and 5 months) than the SX710, 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Pentax K-70 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-70 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon SX710 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

The K-70 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the SX710, the K-70 has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Canon PowerShot SX710 HS has a native sensitivity range from ISO 80 to ISO 3200. The corresponding ISO settings for the Pentax K-70 are ISO 100 to ISO 102400 (no boost).

In terms of underlying technology, the SX710 is build around a BSI-CMOS sensor, while the K-70 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 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-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 SX710	1/2.3	20.2	5184	3888	1080/60p	20.2	11.6	712	47
2.		Pentax K-70	APS-C	24.0	6000	4000	1080/60i	23.8	13.1	1639	80
3.		Canon G7 X Mark II	1-inch	20.0	5472	3648	1080/60p	21.8	11.9	260	62
4.		Canon SX410	1/2.3	19.9	5152	3864	720/30p	20.2	11.6	720	47
5.		Canon SX420	1/2.3	19.9	5152	3864	720/25p	20.3	11.7	806	48
6.		Canon SX430	1/2.3	19.9	5152	3864	720/25p	20.5	11.9	900	49
7.		Canon SX540	1/2.3	20.2	5184	3888	1080/60p	20.3	11.7	806	48
8.		Canon SX700	1/2.3	15.9	4608	3456	1080/60p	20.1	11.4	629	45
9.		Canon SX720	1/2.3	20.2	5184	3888	1080/60p	20.3	11.8	817	48
10.		Canon SX730	1/2.3	20.2	5184	3888	1080/60p	20.5	11.9	924	50
11.		Canon SX740	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1050	51
12.		Pentax K-3 II	APS-C	24.1	6016	4000	1080/60i	23.6	13.6	1106	80
13.		Pentax K-3 III	APS-C	25.6	6192	4128	4K/30p	24.2	13.7	2083	85
14.		Pentax K-50	APS-C	16.1	4928	3264	1080/30p	23.7	13.0	1120	79
15.		Pentax KP	APS-C	24.1	6016	4000	1080/60i	23.9	13.2	1699	81
16.		Pentax K-S2	APS-C	20.0	5472	3648	1080/30p	23.6	12.9	1514	79
17.		Sony HX80	1/2.3	18.0	4896	3672	1080/60p	20.4	11.8	822	48
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 can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the SX710 provides a higher frame rate than the K-70. It can shoot video footage at 1080/60p, while the Pentax is limited to 1080/60i.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the K-70 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the SX710 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon SX710 and Pentax K-70 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 SX710	none	n	3.0 / 922	fixed	n	1/3200s	6.0/s	Y	Y
2.		Pentax K-70	optical	n	3.0 / 921	swivel	n	1/6000s	6.0/s	Y	Y
3.		Canon G7 X Mark II	none	n	3.0 / 1040	tilting	Y	1/2000s	8.0/s	Y	Y
4.		Canon SX410	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
5.		Canon SX420	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
6.		Canon SX430	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
7.		Canon SX540	none	n	3.0 / 461	fixed	n	1/2000s	5.9/s	Y	Y
8.		Canon SX700	none	n	3.0 / 922	fixed	n	1/3200s	8.5/s	Y	Y
9.		Canon SX720	none	n	3.0 / 922	fixed	n	1/3200s	5.9/s	Y	Y
10.		Canon SX730	none	n	3.0 / 922	tilting	n	1/3200s	5.9/s	Y	Y
11.		Canon SX740	none	n	3.0 / 922	tilting	n	1/3200s	10.0/s	Y	Y
12.		Pentax K-3 II	optical	Y	3.2 / 1037	fixed	n	1/8000s	8.3/s	n	Y
13.		Pentax K-3 III	optical	Y	3.2 / 1620	fixed	Y	1/8000s	12.0/s	n	Y
14.		Pentax K-50	optical	n	3.0 / 921	fixed	n	1/6000s	6.0/s	Y	Y
15.		Pentax KP	optical	n	3.0 / 921	tilting	n	1/6000s	7.0/s	Y	Y
16.		Pentax K-S2	optical	n	3.0 / 921	swivel	n	1/6000s	5.4/s	Y	Y
17.		Sony HX80	638	n	3.0 / 922	tilting	n	1/2000s	10.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The Pentax K-70 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.

Concerning the storage of imaging data, both the SX710 and the K-70 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 SX710 HS and Pentax K-70 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 SX710	-	stereo / mono	-	-	micro	2.0	Y	Y	-
2.		Pentax K-70	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
3.		Canon G7 X Mark II	-	stereo / mono	-	-	micro	2.0	Y	Y	-
4.		Canon SX410	-	stereo / mono	-	-	-	2.0	-	-	-
5.		Canon SX420	-	mono / mono	-	-	-	2.0	Y	Y	-
6.		Canon SX430	-	mono / mono	-	-	-	2.0	Y	Y	-
7.		Canon SX540	-	stereo / mono	-	-	mini	2.0	Y	Y	-
8.		Canon SX700	-	stereo / mono	-	-	micro	2.0	Y	Y	-
9.		Canon SX720	-	stereo / mono	-	-	micro	2.0	Y	Y	-
10.		Canon SX730	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
11.		Canon SX740	-	stereo / mono	-	-	micro	2.0	Y	-	Y
12.		Pentax K-3 II	Y	mono / mono	Y	Y	mini	3.0	-	-	-
13.		Pentax K-3 III	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
14.		Pentax K-50	Y	mono / mono	-	-	micro	2.0	-	-	-
15.		Pentax KP	Y	stereo / mono	Y	-	-	2.0	Y	-	-
16.		Pentax K-S2	Y	mono / mono	Y	-	micro	2.0	Y	Y	-
17.		Sony HX80	-	stereo / mono	-	-	micro	2.0	Y	Y	-

It is notable that the K-70 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The SX710 does not feature such a mic input.

Both the SX710 and the K-70 have been discontinued, but can regularly be found used on ebay. The SX710 was replaced by the Canon SX720, while the K-70 does not have a direct successor. Further information on the features and operation of the SX710 and K-70 can be found, respectively, in the Canon SX710 Manual (free pdf) or the online Pentax K-70 Manual.

Review summary

So what conclusions can be drawn? Is the Canon SX710 better than the Pentax K-70 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Canon PowerShot SX710 HS:

• Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
• Ready to shoot: Comes with a built-in lens, while the K-70 requires a separate lens.
• More compact: Is smaller (113x66mm vs 126x93mm) and thus needs less room in the bag.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the K-70).
• 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 on the market for longer (launched in January 2015).

Advantages of the Pentax K-70:

• More detail: Has more megapixels (24 vs 20.2MP), which boosts linear resolution by 11%.
• High quality composites: Can combine several shots after pixel-shifting its sensor.
• 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 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.
• Easier framing: Has an optical 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 (1/6000s vs 1/3200s) to freeze action.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More flexible: Makes it possible to change lenses and thus to use specialty optics.
• Longer lasting: Gets more shots (410 versus 230) 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.
• More modern: Was introduced somewhat (1 year and 5 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the K-70 is the clear winner of the contest (18 : 7 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 SX710 and the Pentax K-70 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best DSLR 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the SX710 or the K-70. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

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 (USD)	Street Price
1.		Canon SX710	..	+	..	..	4/5	3.5/5	Jan 2015	349	ebay.com
2.		Pentax K-70	4.5/5	..	4/5	79/100	4.5/5	4.5/5	Jun 2016	649	ebay.com
3.		Canon G7 X Mark II	4.5/5	+ +	..	81/100	4.5/5	4.5/5	Feb 2016	699	ebay.com
4.		Canon SX410	..	o	..	..	..	..	Feb 2015	279	ebay.com
5.		Canon SX420	..	..	..	..	..	3/5	Jan 2016	299	ebay.com
6.		Canon SX430	..	..	..	..	3.5/5	3.5/5	Jan 2017	299	ebay.com
7.		Canon SX540	..	..	..	..	..	..	Jan 2016	399	ebay.com
8.		Canon SX700	..	+ +	..	..	4/5	4/5	Feb 2014	349	ebay.com
9.		Canon SX720	..	+	..	..	4/5	4.5/5	Feb 2016	379	ebay.com
10.		Canon SX730	..	+	..	..	4/5	4/5	Apr 2017	399	ebay.com
11.		Canon SX740	..	+	3.5/5	..	4/5	4/5	Jul 2018	399	amazon.com
12.		Pentax K-3 II	4.5/5	..	..	..	5/5	5/5	Apr 2015	1,099	ebay.com
13.		Pentax K-3 III	4/5	..	3/5	..	4.5/5	..	Mar 2021	1,999	amazon.com
14.		Pentax K-50	5/5	..	..	..	5/5	4.5/5	Jun 2013	599	ebay.com
15.		Pentax KP	4/5	..	3/5	82/100	5/5	4.5/5	Jan 2017	1,099	ebay.com
16.		Pentax K-S2	4.5/5	..	..	..	5/5	4.5/5	Feb 2015	749	ebay.com
17.		Sony HX80	..	..	..	..	..	..	Mar 2016	349	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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods 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

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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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