Canon M6 vs XTi

The Canon EOS M6 and the Canon EOS Rebel XTi (labelled Canon 400D in some countries) are two digital cameras that were revealed to the public, respectively, in February 2017 and August 2006. The M6 is a mirrorless interchangeable lens camera, while the XTi is a DSLR. Both cameras are equipped with an APS-C sensor. The M6 has a resolution of 24 megapixels, whereas the XTi provides 10.1 MP.

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

Headline Specifications

Canon M6		Canon XTi
Mirrorless system camera		Digital single lens reflex
Canon EF-M mount lenses		Canon EF mount lenses
24 MP – APS-C sensor		10.1 MP – APS-C sensor
1080/60p Video		no Video
ISO 100-25,600		ISO 100-1,600
Viewfinder optional		Optical viewfinder
3.0" LCD – 1040k dots		2.5" LCD – 230k dots
Tilting touchscreen		Fixed screen (not touch-sensitive)
9 shutter flaps per second		3 shutter flaps per second
295 shots per battery charge		370 shots per battery charge
112 x 68 x 45 mm, 390 g		127 x 84 x 65 mm, 556 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS M6 and the Canon EOS Rebel XTi? 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 M6 and the Canon XTi. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

The M6 can be obtained in two different colors (black, silver), while the XTi 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 XTi is notably larger (40 percent) than the Canon M6. Moreover, the XTi is substantially heavier (43 percent) than the M6. In this context, it is worth noting that neither the M6 nor the XTi 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 M6 gets 295 shots out of its Canon LP-E17 battery, while the XTi can take 370 images on a single charge of its Canon NB-2LH power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 M6	112 mm	68 mm	45 mm	390 g	295	n	Feb 2017	EUR 799	ebay.com
2.		Canon XTi	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	EUR 799	ebay.com
3.		Canon 40D	146 mm	108 mm	74 mm	822 g	750	n	Aug 2007	EUR 1 299	ebay.com
4.		Canon 77D	131 mm	100 mm	76 mm	540 g	600	n	Feb 2017	EUR 899	ebay.com
5.		Canon 200D	122 mm	93 mm	70 mm	453 g	650	n	Jun 2017	EUR 599	ebay.com
6.		Canon 2000D	129 mm	101 mm	78 mm	475 g	500	n	Feb 2018	EUR 499	amazon.com
7.		Canon G7 X Mark II	106 mm	61 mm	42 mm	319 g	265	n	Feb 2016	EUR 685	ebay.com
8.		Canon M3	111 mm	68 mm	44 mm	366 g	250	n	Feb 2015	EUR 749	ebay.com
9.		Canon M5	116 mm	89 mm	61 mm	427 g	295	n	Sep 2016	EUR 1 129	ebay.com
10.		Canon M6 Mark II	120 mm	70 mm	49 mm	408 g	305	n	Aug 2019	EUR 929	ebay.com
11.		Canon M50	116 mm	88 mm	59 mm	390 g	235	n	Feb 2018	EUR 779	ebay.com
12.		Canon M100	108 mm	67 mm	35 mm	302 g	295	n	Aug 2017	EUR 479	ebay.com
13.		Canon T3	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	EUR 399	ebay.com
14.		Canon T4i	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	EUR 799	ebay.com
15.		Canon XS	126 mm	98 mm	65 mm	502 g	500	n	Jun 2008	EUR 399	ebay.com
16.		Canon XT	127 mm	94 mm	64 mm	540 g	400	n	Feb 2005	EUR 899	ebay.com
17.		Nikon D5600	124 mm	97 mm	70 mm	465 g	970	n	Nov 2016	EUR 819	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 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 M6 was somewhat cheaper (by 3 percent) than the XTi at launch, but both cameras fall into the same price category. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the XTi is 1 percent smaller. 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.

In terms of chip-set technology, the M6 uses a more advanced image processing engine (DIGIC 7) than the XTi (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.

With 24MP, the M6 offers a higher resolution than the XTi (10.1MP), but the M6 has smaller individual pixels (pixel pitch of 3.72μm versus 5.71μm for the XTi). However, the M6 is a much more recent model (by 10 years and 5 months) than the XTi, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon M6 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M6 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 XTi 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 M6 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS M6 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Canon EOS Rebel XTi are ISO 100 to ISO 1600 (no boost).

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 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 review, the M6 provides substantially higher image quality than the XTi, with an overall score that is 16 points higher. This advantage is based on 1.3 bits higher color depth, 1.6 EV in additional dynamic range, and 1 stops in additional low light sensitivity. 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 M6	APS-C	24.0	6000	4000	1080/60p	23.4	12.6	1317	78
2.		Canon XTi	APS-C	10.1	3888	2592	none	22.1	11.0	664	62
3.		Canon 40D	APS-C	10.1	3888	2592	none	22.1	11.3	703	64
4.		Canon 77D	APS-C	24.0	6000	4000	1080/60p	23.6	13.3	971	78
5.		Canon 200D	APS-C	24.0	6000	4000	1080/60p	23.6	13.4	1041	79
6.		Canon 2000D	APS-C	24.0	6000	4000	1080/30p	22.6	11.9	1009	71
7.		Canon G7 X Mark II	1-inch	20.0	5472	3648	1080/60p	21.8	11.9	260	62
8.		Canon M3	APS-C	24.0	6000	4000	1080/30p	22.8	11.8	1169	72
9.		Canon M5	APS-C	24.0	6000	4000	1080/60p	23.4	12.4	1262	77
10.		Canon M6 Mark II	APS-C	32.3	6960	4640	4K/30p	24.0	13.5	1848	83
11.		Canon M50	APS-C	24.0	6000	4000	4K/24p	23.8	13.3	1684	81
12.		Canon M100	APS-C	24.0	6000	4000	1080/60p	23.5	12.9	1272	78
13.		Canon T3	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
14.		Canon T4i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
15.		Canon XS	APS-C	10.1	3888	2592	none	22.0	10.9	719	62
16.		Canon XT	APS-C	8.0	3456	2304	none	21.8	10.8	637	60
17.		Nikon D5600	APS-C	24.0	6000	4000	1080/60p	24.1	14.0	1306	84
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 M6 indeed provides movie recording capabilities, while the XTi does not. The highest resolution format that the M6 can use is 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the XTi has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the M6 relies on live view and the rear LCD for framing. That said, the M6 can be equipped with an optional viewfinder – the EVF-DC2. The adjacent table lists some of the other core features of the Canon M6 and Canon XTi 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 M6	optional	n	3.0 / 1040	tilting	Y	1/4000s	9.0/s	Y	n
2.		Canon XTi	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
3.		Canon 40D	optical	Y	3.0 / 230	fixed	n	1/8000s	6.5/s	Y	n
4.		Canon 77D	optical	Y	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
5.		Canon 200D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
6.		Canon 2000D	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
7.		Canon G7 X Mark II	none	n	3.0 / 1040	tilting	Y	1/2000s	8.0/s	Y	Y
8.		Canon M3	optional	n	3.0 / 1040	tilting	Y	1/4000s	4.2/s	Y	n
9.		Canon M5	2360	n	3.2 / 1620	tilting	Y	1/4000s	9.0/s	Y	n
10.		Canon M6 Mark II	optional	n	3.0 / 1040	tilting	Y	1/4000s	14.0/s	Y	n
11.		Canon M50	2360	n	3.0 / 1040	swivel	Y	1/4000s	10.0/s	Y	n
12.		Canon M100	none	n	3.0 / 1040	tilting	Y	1/4000s	6.1/s	Y	n
13.		Canon T3	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
14.		Canon T4i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
15.		Canon XS	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
16.		Canon XT	optical	n	1.8 / 115	fixed	n	1/4000s	3.0/s	Y	n
17.		Nikon D5600	optical	n	3.2 / 1037	swivel	Y	1/4000s	5.0/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 M6 has a touchscreen, while the XTi has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The Canon M6 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.

The M6 writes its imaging data to SDXC cards, while the XTi uses Compact Flash 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 M6 and Canon EOS Rebel XTi 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 M6	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
2.		Canon XTi	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon 40D	Y	- / -	-	-	-	2.0	-	-	-
4.		Canon 77D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
5.		Canon 200D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
6.		Canon 2000D	Y	mono / mono	-	-	mini	2.0	Y	Y	-
7.		Canon G7 X Mark II	-	stereo / mono	-	-	micro	2.0	Y	Y	-
8.		Canon M3	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
9.		Canon M5	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
10.		Canon M6 Mark II	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
11.		Canon M50	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
12.		Canon M100	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
13.		Canon T3	Y	stereo / mono	-	-	mini	2.0	-	-	-
14.		Canon T4i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
15.		Canon XS	Y	- / -	-	-	-	2.0	-	-	-
16.		Canon XT	Y	- / -	-	-	-	2.0	-	-	-
17.		Nikon D5600	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y

It is notable that the M6 offers wifi support, while the XTi does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Both the M6 and the XTi have been discontinued, but can regularly be found used on ebay. The XTi was replaced by the Canon Xsi, while the M6 was followed by the Canon M6 Mark II. Further information on the features and operation of the M6 and XTi can be found, respectively, in the Canon M6 Manual (free pdf) or the online Canon XTi Manual.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Canon M6 and the Canon XTi? Which camera is better? The listing below highlights the relative strengths of the two models.

Advantages of the Canon EOS M6:

• More detail: Offers more megapixels (24 vs 10.1MP) with a 54% higher linear resolution.
• Better image quality: Scores substantially higher (16 points) in the DXO overall assessment.
• Richer colors: Generates images with noticeably better colors (1.3 bits more color depth).
• More dynamic range: Captures a larger spectrum of light and dark details (1.6 EV of extra DR).
• Better low-light sensitivity: Requires less light for good images (1 stops ISO advantage).
• Better jpgs: Has a more modern image processing engine (DIGIC 7 vs DIGIC II).
• Broader imaging potential: Can record not only still images but also 1080/60p movies.
• 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: Is equipped with a touch-sensitive rear screen to facilitate handling.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (9 vs 3 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More compact: Is smaller (112x68mm vs 127x84mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 166g or 30 percent) and hence easier to carry around.
• More legacy lens friendly: Can take a broad range of 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.
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More modern: Reflects 10 years and 5 months of technical progress since the XTi launch.

Arguments in favor of the Canon EOS Rebel XTi:

• Easier framing: Has an optical viewfinder for image composition and settings control.
• Longer lasting: Gets more shots (370 versus 295) out of a single battery charge.
• More heavily discounted: Has been around for much longer (launched in August 2006).

If the number of relative strengths (bullet points above) is taken as a guide, the M6 is the clear winner of the match-up (22 : 3 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 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 M6 and the Canon XTi place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the M6 or the XTi. 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 adjacent summary-table relays the overall verdicts of several of the most popular 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 M6	..	..	..	80/100	4/5	4/5	Feb 2017	EUR 799	ebay.com
2.		Canon XTi	..	+ +	..	+ +	o	4/5	Aug 2006	EUR 799	ebay.com
3.		Canon 40D	..	+ +	..	+ +	4.5/5	4.5/5	Aug 2007	EUR 1 299	ebay.com
4.		Canon 77D	4.5/5	..	4/5	82/100	4.5/5	4/5	Feb 2017	EUR 899	ebay.com
5.		Canon 200D	4/5	+ +	4/5	78/100	4.5/5	4.5/5	Jun 2017	EUR 599	ebay.com
6.		Canon 2000D	3/5	o	3.5/5	..	3.5/5	3.5/5	Feb 2018	EUR 499	amazon.com
7.		Canon G7 X Mark II	4.5/5	+ +	..	81/100	4.5/5	4.5/5	Feb 2016	EUR 685	ebay.com
8.		Canon M3	4/5	o	..	75/100	4.5/5	4/5	Feb 2015	EUR 749	ebay.com
9.		Canon M5	4/5	+	4/5	82/100	4/5	4/5	Sep 2016	EUR 1 129	ebay.com
10.		Canon M6 Mark II	..	+	4.5/5	85/100	4/5	4/5	Aug 2019	EUR 929	ebay.com
11.		Canon M50	..	+	4/5	79/100	..	3.5/5	Feb 2018	EUR 779	ebay.com
12.		Canon M100	3/5	+	..	..	4/5	3.5/5	Aug 2017	EUR 479	ebay.com
13.		Canon T3	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	EUR 399	ebay.com
14.		Canon T4i	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	EUR 799	ebay.com
15.		Canon XS	..	82/100	..	+ +	3.5/5	4.5/5	Jun 2008	EUR 399	ebay.com
16.		Canon XT	..	80/100	..	+ +	o	..	Feb 2005	EUR 899	ebay.com
17.		Nikon D5600	4/5	..	4/5	79/100	4.5/5	4/5	Nov 2016	EUR 819	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price 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, 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? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. 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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