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Canon 800D vs M3

The Canon EOS 800D (called Canon T7i in some regions) and the Canon EOS M3 are two digital cameras that were revealed to the public, respectively, in February 2017 and February 2015. The 800D is a DSLR, while the M3 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. Both cameras offer a resolution of 24 megapixels.

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

Headline Specifications
Canon 800D   Canon M3
Canon 800D Canon M3
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Canon EF-M mount lenses
24 MP, APS-C Sensor 24 MP, APS-C Sensor
1080/60p Video 1080/30p Video
ISO 100-25600 (100-51200) ISO 100-12800 (100-25600)
Optical viewfinder Viewfinder optional
3.0" LCD, 1040k dots 3.0" LCD, 1040k dots
Swivel touchscreen Tilting touchscreen
6 shutter flaps per second 4.2 shutter flaps per second
600 shots per battery charge250 shots per battery charge
131 x 100 x 76 mm, 532 g 111 x 68 x 44 mm, 366 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 800D and the Canon EOS M3? 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 physical size and weight of the Canon 800D and the Canon M3 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.

The M3 can be obtained in two different colors (black, white), while the 800D is only available in black.

Size Canon 800D vs Canon M3
Compare 800D versus M3 top
Comparison 800D or M3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon M3 is considerably smaller (42 percent) than the Canon 800D. Moreover, the M3 is markedly lighter (31 percent) than the 800D. In this context, it is worth noting that neither the 800D nor the M3 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.

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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon 800D» 5.2 in 3.9 in 3.0 in 18.8 oz 600 n Feb 2017 749 i i Canon 800D
 
Canon M3« 4.4 in 2.7 in 1.7 in 12.9 oz 250 n Feb 2015 679- i Canon M3
 
Canon 2000D« » 5.1 in 4.0 in 3.1 in 16.8 oz 500 n Feb 2018 449 i i Canon 2000D
 
Canon M50« » 4.6 in 3.5 in 2.3 in 13.8 oz 235 n Feb 2018 779 i i Canon M50
 
Canon 77D« » 5.2 in 3.9 in 3.0 in 19.0 oz 600 n Feb 2017 899 i i Canon 77D
 
Canon 200D« » 4.8 in 3.7 in 2.8 in 16.0 oz 650 n Jun 2017 549- i Canon 200D
 
Canon M6« » 4.4 in 2.7 in 1.8 in 13.8 oz 295 n Feb 2017 779- i Canon M6
 
Canon 1300D« » 5.1 in 4.0 in 3.1 in 17.1 oz 500 n Mar 2016 449- i Canon 1300D
 
Canon G7 X Mark II« » 4.2 in 2.4 in 1.7 in 11.3 oz 265 n Feb 2016 699- i Canon G7 X Mark II
 
Canon M5« » 4.6 in 3.5 in 2.4 in 15.1 oz 295 n Sep 2016 979 i i Canon M5
 
Canon 750D« » 5.2 in 4.0 in 3.1 in 19.6 oz 440 n Feb 2015 749- i Canon 750D
 
Canon 760D« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 649- i Canon 760D
 
Canon T6s« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 649- i Canon T6s
 
Canon G7 X« » 4.1 in 2.4 in 1.6 in 10.7 oz 210 n Sep 2014 699- i Canon G7 X
 
Canon M« » 4.3 in 2.6 in 1.3 in 10.5 oz 230 n Jul 2012 599- i Canon M
 
Nikon D5600« » 4.9 in 3.8 in 2.8 in 16.4 oz 970 n Nov 2016 699 i i Nikon D5600
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

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 M3 was somewhat cheaper (by 9 percent) than the 800D 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 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.

Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.6. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of chip-set technology, the 800D uses a more advanced image processing engine (DIGIC 7) than the M3 (DIGIC 6), with benefits for noise reduction, color accuracy, and processing speed.

Canon 800D and Canon M3 sensor measures

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 24 megapixels. This similarity in sensor specs implies that both the 800D and the M3 have the same pixel density, as well as the same pixel size. It should, however, be noted that the 800D is much more recent (by 2 years) than the M3, and its sensor will have benefitted from technological advances during this time.

The Canon EOS 800D has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The corresponding ISO settings for the Canon EOS M3 are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 100-25600.

800D versus M3 MP

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
Camera
Model
 
Canon 800D» APS-C 24.0 6000 40001080/60p----Canon 800D
 
Canon M3« APS-C 24.0 6000 40001080/30p22.811.8116972Canon M3
 
Canon 2000D« » APS-C 24.0 6000 40001080/30p22.611.9100971Canon 2000D
 
Canon M50« » APS-C 24.0 6000 40004K/24p----Canon M50
 
Canon 77D« » APS-C 24.0 6000 40001080/60p23.613.397178Canon 77D
 
Canon 200D« » APS-C 24.0 6000 40001080/60p23.613.4104179Canon 200D
 
Canon M6« » APS-C 24.0 6000 40001080/60p----Canon M6
 
Canon 1300D« » APS-C 17.9 5184 34561080/30p----Canon 1300D
 
Canon G7 X Mark II« » 1-inch 20.0 5472 36481080/60p----Canon G7 X Mark II
 
Canon M5« » APS-C 24.0 6000 40001080/60p23.412.4126277Canon M5
 
Canon 750D« » APS-C 24.0 6000 40001080/60p22.712.091971Canon 750D
 
Canon 760D« » APS-C 24.0 6000 40001080/30p22.612.091570Canon 760D
 
Canon T6s« » APS-C 24.0 6000 40001080/30p22.612.091570Canon T6s
 
Canon G7 X« » 1-inch 20.0 5472 36481080/60p23.012.755671Canon G7 X
 
Canon M« » APS-C 17.9 5184 34561080/30p22.111.282765Canon M
 
Nikon D5600« » APS-C 24.0 6000 40001080/60p24.114.0130684Nikon D5600

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 800D provides a higher frame rate than the M3. It can shoot video footage at 1080/60p, while the M3 is limited to 1080/30p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 800D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the M3 relies on live view and the rear LCD for framing. That said, the M3 can be equipped with an optional viewfinder – the EVF-DC1. The adjacent table lists some of the other core features of the Canon 800D and Canon M3 along with similar information for a selection of comparators.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Canon 800D»optical n 3.0 1040 swivel Y 1/4000s 6.0 Y n Canon 800D
 
Canon M3«- n 3.0 1040 tilting Y 1/4000s 4.2 Y n Canon M3
 
Canon 2000D« »optical n 3.0 920 fixed n 1/4000s 3.0 Y n Canon 2000D
 
Canon M50« »2360 n 3.0 1040 swivel Y 1/4000s 10.0 Y n Canon M50
 
Canon 77D« »optical Y 3.0 1040 swivel Y 1/4000s 6.0 Y n Canon 77D
 
Canon 200D« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon 200D
 
Canon M6« »- n 3.0 1040 tilting Y 1/4000s 9.0 Y n Canon M6
 
Canon 1300D« »optical n 3.0 920 fixed n 1/4000s 3.0 Y n Canon 1300D
 
Canon G7 X Mark II« »- n 3.0 1040 tilting Y 1/2000s 8.0 Y Y Canon G7 X Mark II
 
Canon M5« »2360 n 3.2 1620 tilting Y 1/4000s 9.0 Y n Canon M5
 
Canon 750D« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon 750D
 
Canon 760D« »optical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon 760D
 
Canon T6s« »optical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T6s
 
Canon G7 X« »- n 3.0 1040 tilting Y 1/2000s 6.5 Y Y Canon G7 X
 
Canon M« »- n 3.0 1040 fixed Y 1/4000s 4.3 n n Canon M
 
Nikon D5600« »optical n 3.2 1037 swivel Y 1/4000s 5.0 Y n Nikon D5600
Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

Concerning the storage of imaging data, both the 800D and the M3 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 EOS 800D and Canon EOS M3 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon 800D»YstereomonoY-mini2.0YYYCanon 800D
 
Canon M3«YstereomonoY-mini2.0YY-Canon M3
 
Canon 2000D« »Ymonomono--mini2.0YY-Canon 2000D
 
Canon M50« »YstereomonoY-micro2.0YYYCanon M50
 
Canon 77D« »YstereomonoY-mini2.0YYYCanon 77D
 
Canon 200D« »YstereomonoY-mini2.0YYYCanon 200D
 
Canon M6« »YstereomonoY-mini2.0YYYCanon M6
 
Canon 1300D« »Ymonomono--mini2.0YY-Canon 1300D
 
Canon G7 X Mark II« »-stereomono--micro2.0YY-Canon G7 X Mark II
 
Canon M5« »YstereomonoY-mini2.0YYYCanon M5
 
Canon 750D« »YstereomonoY-mini2.0YY-Canon 750D
 
Canon 760D« »YstereomonoY-mini2.0YY-Canon 760D
 
Canon T6s« »YstereomonoY-mini2.0YY-Canon T6s
 
Canon G7 X« »-stereomono--micro2.0YY-Canon G7 X
 
Canon M« »YstereomonoY-mini2.0---Canon M
 
Nikon D5600« »YstereomonoY-mini2.0YYYNikon D5600

The 800D is a recent model that features in the current product line-up of Canon. In contrast, the M3 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the M3 was succeeded by the Canon M6. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.


Review summary

So how do things add up? Which of the two cameras – the Canon 800D or the Canon M3 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.


Advantages of the Canon EOS 800D:

  • Better jpgs: Has a more modern image processing engine (DIGIC 7 vs DIGIC 6).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • 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.
  • Faster burst: Shoots at higher frequency (6 vs 4.2 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (600 versus 250) on a single battery charge.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 2 years of technical progress since the M3 launch.


Arguments in favor of the Canon EOS M3:

  • More compact: Is smaller (111x68mm vs 131x100mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 166g or 31 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • More heavily discounted: Has been around for much longer (launched in February 2015).

If the count of relative strengths (bullet points above) is taken as a measure, the 800D is the clear winner of the match-up (8 : 4 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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.

800D 08:04 M3

How about other alternatives? Do the specifications of the Canon 800D and the Canon M3 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 remains incomplete and does no justice, for example, to the way the 800D or the M3 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 why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon 800D»-80/1004.5/54/54/5 Feb 2017 749 i i Canon 800D
 
Canon M3«o75/1004.5/54.5/54/5 Feb 2015 679- i Canon M3
 
Canon 2000D« »o-3.5/5-3.5/5 Feb 2018 449 i i Canon 2000D
 
Canon M50« »+79/100-4/53.5/5 Feb 2018 779 i i Canon M50
 
Canon 77D« »-82/1004.5/54.5/54/5 Feb 2017 899 i i Canon 77D
 
Canon 200D« »+ +78/1004.5/54.5/54.5/5 Jun 2017 549- i Canon 200D
 
Canon M6« »-80/1004/54.5/54/5 Feb 2017 779- i Canon M6
 
Canon 1300D« »o73/1004/53.5/54/5 Mar 2016 449- i Canon 1300D
 
Canon G7 X Mark II« »+ +81/1004.5/54/54.5/5 Feb 2016 699- i Canon G7 X Mark II
 
Canon M5« »+82/1004/54.5/54/5 Sep 2016 979 i i Canon M5
 
Canon 750D« »-75/1004.5/54.5/54.5/5 Feb 2015 749- i Canon 750D
 
Canon 760D« »+77/1004.5/54.5/54.5/5 Feb 2015 649- i Canon 760D
 
Canon T6s« »+77/1004.5/54.5/54.5/5 Feb 2015 649- i Canon T6s
 
Canon G7 X« »+ +77/1004.5/53.5/54.5/5 Sep 2014 699- i Canon G7 X
 
Canon M« »+-4/53.5/54/5 Jul 2012 599- i Canon M
 
Nikon D5600« »-79/1004.5/54.5/54/5 Nov 2016 699 i i Nikon D5600
Notes: (+ +) 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Canon 800D:
Check Amazon price
Canon M3:
Check Ebay offers

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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    Specifications: Canon 800D vs Canon M3

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Canon 800D Canon M3
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Canon EF mount lenses Canon EF-M mount lenses
    Launch Date February 2017 February 2015
    Launch Price USD 749 USD 679
    Sensor Specs Canon 800D Canon M3
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 22.3 x 14.9 mm 22.3 x 14.9 mm
    Sensor Area 332.27 mm2 332.27 mm2
    Sensor Diagonal 26.8 mm 26.8 mm
    Crop Factor 1.6x 1.6x
    Sensor Resolution 24 Megapixels 24 Megapixels
    Image Resolution 6000 x 4000 pixels 6000 x 4000 pixels
    Pixel Pitch 3.72 μm 3.72 μm
    Pixel Density 7.22 MP/cm2 7.22 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video 1080/30p Video
    ISO Setting 100-25600 ISO 100-12800 ISO
    ISO Boost 100-51200 ISO 100-25600 ISO
    Image Processor DIGIC 7 DIGIC 6
    DXO Sensor Quality (score) .. 72
    DXO Color Depth (bits) .. 22.8
    DXO Dynamic Range (EV) .. 11.8
    DXO Low Light (ISO) .. 1169
    Screen Specs Canon 800D Canon M3
    Viewfinder Type Optical viewfinder Viewfinder optional
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.51x
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 1040k dots 1040k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Canon 800D Canon M3
    Autofocus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000/s 1/4000/s
    Continuous Shooting 6 shutter flaps/s 4.2 shutter flaps/s
    Shutter Life Expectancy100 000 actuations100 000 actuations
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Canon 800D Canon M3
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in NFC built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon 800D Canon M3
    Battery Type LP-E17 LP-E17
    Battery Life (CIPA)600 shots per charge250 shots per charge
    Body Dimensions 131 x 100 x 76 mm
    (5.2 x 3.9 x 3.0 in)
    111 x 68 x 44 mm
    (4.4 x 2.7 x 1.7 in)
    Camera Weight 532 g (18.8 oz) 366 g (12.9 oz)

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