Canon 400D vs M10

The Canon EOS 400D (called Canon XTi in some regions) and the Canon EOS M10 are two digital cameras that were officially introduced, respectively, in August 2006 and October 2015. The 400D is a DSLR, while the M10 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. The 400D has a resolution of 10.1 megapixels, whereas the M10 provides 17.9 MP.

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

Headline Specifications

Canon 400D		Canon M10
Digital single lens reflex		Mirrorless system camera
Canon EF mount lenses		Canon EF-M mount lenses
10.1 MP – APS-C sensor		17.9 MP – APS-C sensor
no Video		1080/30p Video
ISO 100-1,600		ISO 100-12,800 (100 - 25,600)
Optical viewfinder		No viewfinder, LCD framing
2.5" LCD – 230k dots		3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive)		Tilting touchscreen
3 shutter flaps per second		4.6 shutter flaps per second
370 shots per battery charge		255 shots per battery charge
127 x 84 x 65 mm, 556 g		108 x 67 x 35 mm, 301 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 400D and the Canon EOS M10? 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 400D and the Canon M10. 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 M10 can be obtained in two different colors (black, white), while the 400D 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 M10 is considerably smaller (32 percent) than the Canon 400D. Moreover, the M10 is substantially lighter (46 percent) than the 400D. In this context, it is worth noting that neither the 400D nor the M10 are weather-sealed.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the 400D gets 370 shots out of its Canon NB-2LH battery, while the M10 can take 255 images on a single charge of its Canon LP-E12 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 (USD)	Street Price
1.		Canon 400D	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	799	ebay.com
2.		Canon M10	108 mm	67 mm	35 mm	301 g	255	n	Oct 2015	499	ebay.com
3.		Canon 40D	146 mm	108 mm	74 mm	822 g	750	n	Aug 2007	1,299	ebay.com
4.		Canon 350D	127 mm	94 mm	64 mm	540 g	400	n	Feb 2005	899	ebay.com
5.		Canon 450D	129 mm	98 mm	62 mm	524 g	500	n	Jan 2008	799	ebay.com
6.		Canon 500D	129 mm	98 mm	62 mm	520 g	400	n	Mar 2009	799	ebay.com
7.		Canon 550D	129 mm	98 mm	62 mm	530 g	440	n	Feb 2010	699	ebay.com
8.		Canon 650D	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	849	ebay.com
9.		Canon 750D	132 mm	101 mm	78 mm	555 g	440	n	Feb 2015	749	ebay.com
10.		Canon 760D	132 mm	101 mm	78 mm	565 g	440	n	Feb 2015	649	ebay.com
11.		Canon 1100D	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	449	ebay.com
12.		Canon M	109 mm	66 mm	32 mm	298 g	230	n	Jul 2012	599	ebay.com
13.		Canon M3	111 mm	68 mm	44 mm	366 g	250	n	Feb 2015	679	ebay.com
14.		Canon M100	108 mm	67 mm	35 mm	302 g	295	n	Aug 2017	499	ebay.com
15.		Canon SL1	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	549	ebay.com
16.		Canon T6	129 mm	101 mm	78 mm	485 g	500	n	Mar 2016	449	ebay.com
17.		Nikon D40X	124 mm	94 mm	64 mm	522 g	520	n	Mar 2007	729	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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The M10 was launched at a markedly lower price (by 38 percent) than the 400D, which puts it into a different market segment. 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 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the M10 is 1 percent bigger. They nevertheless have the same format factor of 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Technology-wise, the M10 uses a more advanced image processing engine (DIGIC 6) than the 400D (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.

With 17.9MP, the M10 offers a higher resolution than the 400D (10.1MP), but the M10 has smaller individual pixels (pixel pitch of 4.31μm versus 5.71μm for the 400D). Yet, the M10 is a much more recent model (by 9 years and 1 month) than the 400D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Canon M10 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M10 for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 cm. The corresponding values for the Canon 400D are 19.4 x 13 inches or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inches or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inches or 32.9 x 21.9 cm for excellent quality prints.

The M10 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS 400D has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Canon EOS M10 are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 100-25600.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. 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 400D	APS-C	10.1	3888	2592	none	22.1	11.0	664	62
2.		Canon M10	APS-C	17.9	5184	3456	1080/30p	22.2	11.4	753	65
3.		Canon 40D	APS-C	10.1	3888	2592	none	22.1	11.3	703	64
4.		Canon 350D	APS-C	8.0	3456	2304	none	21.8	10.8	637	60
5.		Canon 450D	APS-C	12.2	4272	2848	none	21.9	10.8	692	61
6.		Canon 500D	APS-C	15.1	4752	3168	1080/20p	21.7	11.5	663	63
7.		Canon 550D	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	784	66
8.		Canon 650D	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
9.		Canon 750D	APS-C	24.0	6000	4000	1080/30p	22.7	12.0	919	71
10.		Canon 760D	APS-C	24.0	6000	4000	1080/30p	22.6	12.0	915	70
11.		Canon 1100D	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
12.		Canon M	APS-C	17.9	5184	3456	1080/30p	22.1	11.2	827	65
13.		Canon M3	APS-C	24.0	6000	4000	1080/30p	22.8	11.8	1169	72
14.		Canon M100	APS-C	24.0	6000	4000	1080/60p	23.5	12.9	1272	78
15.		Canon SL1	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
16.		Canon T6	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	781	66
17.		Nikon D40X	APS-C	10.0	3872	2592	none	22.4	11.4	516	63

Many modern cameras cannot only take still pictures, but also record videos. The M10 indeed provides for movie recording, while the 400D does not. The highest resolution format that the M10 can use is 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the 400D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the M10 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon 400D and Canon M10 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 400D	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
2.		Canon M10	none	n	3.0 / 1040	tilting	Y	1/4000s	4.6/s	Y	n
3.		Canon 40D	optical	Y	3.0 / 230	fixed	n	1/8000s	6.5/s	Y	n
4.		Canon 350D	optical	n	1.8 / 115	fixed	n	1/4000s	3.0/s	Y	n
5.		Canon 450D	optical	n	3.0 / 230	fixed	n	1/4000s	3.5/s	Y	n
6.		Canon 500D	optical	n	3.0 / 920	fixed	n	1/4000s	3.4/s	Y	n
7.		Canon 550D	optical	n	3.0 / 1040	fixed	n	1/4000s	3.7/s	Y	n
8.		Canon 650D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
9.		Canon 750D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
10.		Canon 760D	optical	Y	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
11.		Canon 1100D	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
12.		Canon M	none	n	3.0 / 1040	fixed	Y	1/4000s	4.3/s	n	n
13.		Canon M3	optional	n	3.0 / 1040	tilting	Y	1/4000s	4.2/s	Y	n
14.		Canon M100	none	n	3.0 / 1040	tilting	Y	1/4000s	6.1/s	Y	n
15.		Canon SL1	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
16.		Canon T6	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
17.		Nikon D40X	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The M10 has a touchscreen, while the 400D has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The 400D writes its imaging data to Compact Flash cards, while the M10 uses SDXC 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 EOS 400D and Canon EOS M10 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 400D	Y	- / -	-	-	-	2.0	-	-	-
2.		Canon M10	-	stereo / mono	-	-	mini	2.0	Y	Y	-
3.		Canon 40D	Y	- / -	-	-	-	2.0	-	-	-
4.		Canon 350D	Y	- / -	-	-	-	2.0	-	-	-
5.		Canon 450D	Y	- / -	-	-	mini	2.0	-	-	-
6.		Canon 500D	Y	mono / mono	-	-	mini	2.0	-	-	-
7.		Canon 550D	Y	stereo / -	Y	-	mini	2.0	-	-	-
8.		Canon 650D	Y	stereo / mono	Y	-	mini	2.0	-	-	-
9.		Canon 750D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
10.		Canon 760D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
11.		Canon 1100D	Y	stereo / mono	-	-	mini	2.0	-	-	-
12.		Canon M	Y	stereo / mono	Y	-	mini	2.0	-	-	-
13.		Canon M3	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
14.		Canon M100	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
15.		Canon SL1	Y	mono / mono	Y	-	mini	2.0	-	-	-
16.		Canon T6	Y	mono / mono	-	-	mini	2.0	Y	Y	-
17.		Nikon D40X	Y	- / -	-	-	-	2.0	-	-	-

It is notable that the 400D has a hotshoe, while the M10 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Both the 400D and the M10 have been discontinued, but can regularly be found used on ebay. The 400D was replaced by the Canon 450D, while the M10 was followed by the Canon M100. Further information on the features and operation of the 400D and M10 can be found, respectively, in the Canon 400D Manual (free pdf) or the online Canon M10 Manual.

Review summary

So how do things add up? Is there a clear favorite between the Canon 400D and the Canon M10? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Advantages of the Canon EOS 400D:

• Easier framing: Has an optical viewfinder for image composition and settings control.
• Longer lasting: Can take more shots (370 versus 255) on a single battery charge.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• More heavily discounted: Has been available for much longer (launched in August 2006).

Arguments in favor of the Canon EOS M10:

• More detail: Has more megapixels (17.9 vs 10.1MP), which boosts linear resolution by 33%.
• Better jpgs: Has a more modern image processing engine (DIGIC 6 vs DIGIC II).
• Broader imaging potential: Can capture not only stills but also 1080/30p video.
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (4.6 vs 3 flaps/sec) to capture the decisive moment.
• More compact: Is smaller (108x67mm vs 127x84mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 255g or 46 percent) and is thus easier to take along.
• More legacy lens friendly: Can use many non-native lenses via adapters.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
• More modern: Reflects 9 years and 1 month of technical progress since the 400D launch.

If the count of relative strengths (bullet points above) is taken as a measure, the M10 is the clear winner of the contest (17 : 4 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 400D and the Canon M10 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens 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 says little about, for example, the shooting experience and imaging performance of the 400D and the M10 in practical situations. 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 where reviews by experts come in. 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 400D	..	+ +	..	+ +	o	4/5	Aug 2006	799	ebay.com
2.		Canon M10	..	..	..	..	..	4/5	Oct 2015	499	ebay.com
3.		Canon 40D	..	+ +	..	+ +	4.5/5	4.5/5	Aug 2007	1,299	ebay.com
4.		Canon 350D	..	80/100	..	+ +	o	..	Feb 2005	899	ebay.com
5.		Canon 450D	..	+ +	..	+ +	4/5	4.5/5	Jan 2008	799	ebay.com
6.		Canon 500D	..	+ +	..	74/100	4.5/5	4.5/5	Mar 2009	799	ebay.com
7.		Canon 550D	..	+ +	..	77/100	4/5	4.5/5	Feb 2010	699	ebay.com
8.		Canon 650D	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	849	ebay.com
9.		Canon 750D	5/5	..	..	75/100	4.5/5	4.5/5	Feb 2015	749	ebay.com
10.		Canon 760D	5/5	+	..	77/100	4.5/5	4.5/5	Feb 2015	649	ebay.com
11.		Canon 1100D	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	449	ebay.com
12.		Canon M	3/5	+	..	..	4/5	4/5	Jul 2012	599	ebay.com
13.		Canon M3	4/5	o	..	75/100	4.5/5	4/5	Feb 2015	679	ebay.com
14.		Canon M100	3/5	+	..	..	4/5	3.5/5	Aug 2017	499	ebay.com
15.		Canon SL1	4/5	+	..	78/100	4/5	4/5	Mar 2013	549	ebay.com
16.		Canon T6	4/5	o	4/5	73/100	4/5	4/5	Mar 2016	449	ebay.com
17.		Nikon D40X	..	79/100	..	+ +	4/5	4/5	Mar 2007	729	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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 would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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