Canon M vs Olympus TG-4

The Canon EOS M and the Olympus Tough TG-4 are two digital cameras that were officially introduced, respectively, in July 2012 and April 2015. The Canon M is a mirrorless interchangeable lens camera, while the TG-4 is a fixed lens compact. The cameras are based on an APS-C (Canon M) and a 1/2.3-inch (TG-4) sensor. The Canon has a resolution of 17.9 megapixels, whereas the Olympus provides 15.9 MP.

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

Headline Specifications

Canon M		Olympus TG-4
Mirrorless system camera		Fixed lens compact camera
Canon EF-M mount lenses		25-100mm f/2.0-4.9
17.9 MP – APS-C sensor		15.9 MP – 1/2.3" sensor
1080/30p Video		1080/30p Video
ISO 100-12,800 (100 - 25,600)		ISO 100-6,400
No viewfinder, LCD framing		No viewfinder, LCD framing
3.0" LCD – 1040k dots		3.0" LCD – 460k dots
Fixed touchscreen		Fixed screen (not touch-sensitive)
4.3 shutter flaps per second		5 shutter flaps per second
Lens stabilization only		In-body stabilization
not weather sealed		Waterproof body (15m)
230 shots per battery charge		380 shots per battery charge
109 x 66 x 32 mm, 298 g		112 x 66 x 31 mm, 247 g

Check Canon M offers at
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Check TG-4 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS M and the Olympus Tough TG-4? 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 M and the Olympus TG-4. 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 size dimensions are rounded to the nearest millimeter.

The Canon M can be obtained in two different colors (black, white), while the TG-4 is also available in two color-versions, but different ones (black, red).

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus TG-4 is somewhat larger (3 percent) than the Canon M. It is noteworthy in this context that the TG-4 is splash and dust-proof, while the Canon M does not feature any corresponding weather-sealing. More than that, the TG-4 is water-proof up to 15m and can, thus, be used for underwater photography.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the TG-4 has a lens built in, whereas the Canon M 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 Canon M gets 230 shots out of its Canon LP-E12 battery, while the TG-4 can take 380 images on a single charge of its Olympus LI-92B power pack. The power pack in the TG-4 can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 M	109 mm	66 mm	32 mm	298 g	230	n	Jul 2012	599	ebay.com
2.		Olympus TG-4	112 mm	66 mm	31 mm	247 g	380	Y	Apr 2015	379	ebay.com
3.		Canon G7 X	103 mm	60 mm	40 mm	304 g	210	n	Sep 2014	699	ebay.com
4.		Canon G16	109 mm	76 mm	40 mm	356 g	360	n	Aug 2013	549	ebay.com
5.		Canon M10	108 mm	67 mm	35 mm	301 g	255	n	Oct 2015	499	ebay.com
6.		Canon M100	108 mm	67 mm	35 mm	302 g	295	n	Aug 2017	499	ebay.com
7.		Canon SL1	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	549	ebay.com
8.		Canon T3i	133 mm	100 mm	80 mm	570 g	440	n	Feb 2011	599	ebay.com
9.		Canon T5i	133 mm	100 mm	79 mm	580 g	440	n	Mar 2013	649	ebay.com
10.		Fujifilm XP130	110 mm	71 mm	28 mm	207 g	240	Y	Jan 2018	229	ebay.com
11.		Fujifilm XP140	110 mm	71 mm	28 mm	207 g	240	Y	Feb 2019	229	ebay.com
12.		Nikon W300	112 mm	66 mm	29 mm	231 g	280	Y	May 2017	389	ebay.com
13.		Olympus TG-5	113 mm	66 mm	32 mm	250 g	340	Y	May 2017	449	ebay.com
14.		Olympus TG-6	113 mm	66 mm	32 mm	253 g	340	Y	May 2019	449	ebay.com
15.		Panasonic G3	115 mm	84 mm	47 mm	336 g	270	n	May 2011	599	ebay.com
16.		Panasonic GF6	111 mm	65 mm	38 mm	323 g	340	n	Apr 2013	499	ebay.com
17.		Sony NEX-3N	110 mm	62 mm	35 mm	269 g	480	n	Feb 2013	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

Any camera decision will naturally be influenced heavily by the price. 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 TG-4 was launched at a lower price than the Canon M, despite having a lens built in. 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. 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 sensor inside a digital camera is one of the key determinants 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. 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.

Of the two cameras under consideration, the Canon M features an APS-C sensor and the Olympus TG-4 a 1/2.3-inch sensor. The sensor area in the TG-4 is 92 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 5.6. The sensor in the Canon M has a native 3:2 aspect ratio, while the one in the TG-4 offers a 4:3 aspect.

With 17.9MP, the Canon M offers a higher resolution than the TG-4 (15.9MP), but the Canon M nevertheless has larger individual pixels (pixel pitch of 4.31μm versus 1.33μm for the TG-4) due to its larger sensor. However, the TG-4 is a much more recent model (by 2 years and 8 months) than the Canon M, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon M implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Canon M 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 Olympus TG-4 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.

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

The Canon EOS M has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. The corresponding ISO settings for the Olympus Tough TG-4 are ISO 100 to ISO 6400 (no boost).

In terms of underlying technology, the Canon M is build around a CMOS sensor, while the TG-4 uses a BSI-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.

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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. 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 M	APS-C	17.9	5184	3456	1080/30p	22.1	11.2	827	65
2.		Olympus TG-4	1/2.3	15.9	4608	3456	1080/30p	20.2	11.6	737	47
3.		Canon G7 X	1-inch	20.0	5472	3648	1080/60p	23.0	12.7	556	71
4.		Canon G16	1/1.7	12.0	4000	3000	1080/60p	21.0	11.7	230	54
5.		Canon M10	APS-C	17.9	5184	3456	1080/30p	22.2	11.4	753	65
6.		Canon M100	APS-C	24.0	6000	4000	1080/60p	23.5	12.9	1272	78
7.		Canon SL1	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
8.		Canon T3i	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	793	65
9.		Canon T5i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	681	61
10.		Fujifilm XP130	1/2.3	15.9	4608	3456	1080/60p	20.6	12.1	1000	51
11.		Fujifilm XP140	1/2.3	15.9	4608	3456	4K/15p	20.7	12.2	1102	52
12.		Nikon W300	1/2.3	15.9	4608	3456	4K/30p	20.5	12.0	938	50
13.		Olympus TG-5	1/2.3	12.0	4000	3000	4K/30p	20.5	11.9	934	50
14.		Olympus TG-6	1/2.3	12.0	4000	3000	4K/30p	20.7	12.2	1127	52
15.		Panasonic G3	Four Thirds	15.8	4592	3448	1080/60i	21.0	10.6	667	56
16.		Panasonic GF6	Four Thirds	15.8	4592	3448	1080/60i	20.7	10.6	622	54
17.		Sony NEX-3N	APS-C	16.0	4912	3264	1080/60i	22.8	12.5	1067	74
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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/30p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The Canon M and the TG-4 are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. The adjacent table lists some of the other core features of the Canon M and Olympus TG-4 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 M	none	n	3.0 / 1040	fixed	Y	1/4000s	4.3/s	n	n
2.		Olympus TG-4	none	n	3.0 / 460	fixed	n	1/2000s	5.0/s	Y	Y
3.		Canon G7 X	none	n	3.0 / 1040	tilting	Y	1/2000s	6.5/s	Y	Y
4.		Canon G16	optical	n	3.0 / 922	fixed	n	1/4000s	2.2/s	Y	Y
5.		Canon M10	none	n	3.0 / 1040	tilting	Y	1/4000s	4.6/s	Y	n
6.		Canon M100	none	n	3.0 / 1040	tilting	Y	1/4000s	6.1/s	Y	n
7.		Canon SL1	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
8.		Canon T3i	optical	n	3.0 / 1040	swivel	n	1/4000s	3.7/s	Y	n
9.		Canon T5i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
10.		Fujifilm XP130	none	n	3.0 / 920	fixed	n	1/2000s	10.0/s	Y	Y
11.		Fujifilm XP140	none	n	3.0 / 920	fixed	n	1/2000s	10.0/s	Y	Y
12.		Nikon W300	none	n	3.0 / 921	fixed	n	1/4000s	7.0/s	Y	Y
13.		Olympus TG-5	none	n	3.0 / 460	fixed	n	1/2000s	20.0/s	Y	Y
14.		Olympus TG-6	none	n	3.0 / 1040	fixed	n	1/2000s	20.0/s	Y	Y
15.		Panasonic G3	1440	n	3.0 / 460	swivel	Y	1/4000s	4.0/s	Y	n
16.		Panasonic GF6	none	n	3.0 / 1040	tilting	Y	1/4000s	4.2/s	Y	n
17.		Sony NEX-3N	optional	n	3.0 / 460	tilting	n	1/4000s	4.0/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 Canon M has a touchscreen, while the TG-4 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The Olympus TG-4 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 Canon M and the TG-4 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 M and Olympus Tough TG-4 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 M	Y	stereo / mono	Y	-	mini	2.0	-	-	-
2.		Olympus TG-4	-	stereo / mono	-	-	micro	2.0	Y	-	-
3.		Canon G7 X	-	stereo / mono	-	-	micro	2.0	Y	Y	-
4.		Canon G16	Y	stereo / mono	-	-	mini	2.0	Y	-	-
5.		Canon M10	-	stereo / mono	-	-	mini	2.0	Y	Y	-
6.		Canon M100	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
7.		Canon SL1	Y	mono / mono	Y	-	mini	2.0	-	-	-
8.		Canon T3i	Y	mono / mono	Y	-	mini	2.0	-	-	-
9.		Canon T5i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
10.		Fujifilm XP130	-	mono / mono	-	-	micro	2.0	Y	-	Y
11.		Fujifilm XP140	-	mono / mono	-	-	micro	2.0	Y	-	Y
12.		Nikon W300	-	stereo / mono	-	-	micro	2.0	Y	-	Y
13.		Olympus TG-5	-	stereo / mono	-	-	micro	2.0	Y	-	-
14.		Olympus TG-6	-	stereo / mono	-	-	micro	2.0	Y	-	-
15.		Panasonic G3	Y	stereo / mono	-	-	mini	2.0	-	-	-
16.		Panasonic GF6	-	stereo / mono	-	-	mini	2.0	Y	Y	-
17.		Sony NEX-3N	-	stereo / mono	-	-	micro	2.0	-	-	-

It is notable that the Canon M has a hotshoe, while the TG-4 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Travel and landscape photographers will find it useful that the TG-4 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the Canon M and the TG-4 have been discontinued, but can regularly be found used on ebay. The Canon M was replaced by the Canon EOS M3, while the TG-4 was followed by the Olympus TG-5. Further information on the features and operation of the Canon M and TG-4 can be found, respectively, in the Canon M Manual (free pdf) or the online Olympus TG-4 Manual.

Review summary

So how do things add up? Which of the two cameras – the Canon M or the Olympus TG-4 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

Arguments in favor of the Canon EOS M:

• More detail: Offers more megapixels (17.9 vs 15.9MP) with a 8% higher linear resolution.
• 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 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.
• More detailed LCD: Has a higher resolution rear screen (1040k vs 460k dots).
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
• More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
• 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 July 2012).

Advantages of the Olympus Tough TG-4:

• Faster burst: Shoots at higher frequency (5 vs 4.3 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Ready to shoot: Has an integrated lens, whereas the Canon M necessitates an extra lens.
• Less heavy: Has a lower weight even though it has a lens built in (unlike the Canon M).
• Longer lasting: Gets more shots (380 versus 230) out of a single battery charge.
• Easier travel charging: Can be conveniently charged via its USB port.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 15m).
• Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
• Easier geotagging: Features an internal GPS sensor to log localization data.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More modern: Reflects 2 years and 8 months of technical progress since the Canon M launch.

If the count of relative strengths (bullet points above) is taken as a measure, the TG-4 comes out slightly ahead of the Canon M (14 : 13 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 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 M and the Olympus TG-4 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Travel-Zoom 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 Canon M or the TG-4. 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 expert reviews are important. 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 (USD)	Street Price
1.		Canon M	3/5	+	..	..	4/5	4/5	Jul 2012	599	ebay.com
2.		Olympus TG-4	..	+	..	79/100	4/5	4/5	Apr 2015	379	ebay.com
3.		Canon G7 X	4/5	+ +	..	77/100	4.5/5	4.5/5	Sep 2014	699	ebay.com
4.		Canon G16	4/5	+	..	..	4.5/5	4.5/5	Aug 2013	549	ebay.com
5.		Canon M10	..	..	..	..	..	4/5	Oct 2015	499	ebay.com
6.		Canon M100	3/5	+	..	..	4/5	3.5/5	Aug 2017	499	ebay.com
7.		Canon SL1	4/5	+	..	78/100	4/5	4/5	Mar 2013	549	ebay.com
8.		Canon T3i	3/5	o	..	77/100	4.5/5	4.5/5	Feb 2011	599	ebay.com
9.		Canon T5i	..	..	..	76/100	4.5/5	4.5/5	Mar 2013	649	ebay.com
10.		Fujifilm XP130	..	o	..	..	3.5/5	4/5	Jan 2018	229	ebay.com
11.		Fujifilm XP140	..	+	..	..	3.5/5	4/5	Feb 2019	229	ebay.com
12.		Nikon W300	..	+	..	..	4/5	4/5	May 2017	389	ebay.com
13.		Olympus TG-5	..	+ +	4.5/5	..	4/5	4/5	May 2017	449	ebay.com
14.		Olympus TG-6	4/5	+ +	4.5/5	76/100	4/5	4/5	May 2019	449	ebay.com
15.		Panasonic G3	3/5	+ +	..	75/100	4.5/5	5/5	May 2011	599	ebay.com
16.		Panasonic GF6	..	+ +	..	..	4.5/5	4.5/5	Apr 2013	499	ebay.com
17.		Sony NEX-3N	3/5	..	..	..	4.5/5	4.5/5	Feb 2013	499	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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, please note that some of the review sites have changed their methodology and reporting over time.

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Other camera comparisons

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