Canon R100 vs Fujifilm X-A3

The Canon EOS R100 and the Fujifilm X-A3 are two digital cameras that were revealed to the public, respectively, in May 2023 and August 2016. Both the R100 and the X-A3 are mirrorless interchangeable lens cameras that 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 R100		Fujifilm X-A3
Mirrorless system camera		Mirrorless system camera
		Fujifilm X mount lenses
24 MP – APS-C sensor		24 MP – APS-C sensor
4k/24p Video		1080/60p Video
ISO 100-25,600		ISO 200-6,400 (100 - 25,600)
Electronic viewfinder (2360k dots)		No viewfinder, LCD framing
3.0" LCD – 1040k dots		3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive)		Tilting touchscreen
6.5 shutter flaps per second		6 shutter flaps per second
400 shots per battery charge		410 shots per battery charge
116 x 86 x 69 mm, 356 g		117 x 67 x 40 mm, 339 g

Check R100 price at
amazon.com
Check X-A3 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS R100 and the Fujifilm X-A3? 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 R100 and the Fujifilm X-A3. 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 X-A3 can be obtained in three different colors (silver, brown, pink), while the R100 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 Fujifilm X-A3 is notably smaller (21 percent) than the Canon R100. Moreover, the X-A3 is markedly lighter (5 percent) than the R100. In this context, it is worth noting that neither the R100 nor the X-A3 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 R100 gets 400 shots out of its Canon LP-E17 battery, while the X-A3 can take 410 images on a single charge of its Fujifilm NP-W126S power pack. The power pack in the X-A3 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. 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	Street Price
1.		Canon R100	116 mm	86 mm	69 mm	356 g	400	n	May 2023	EUR 579	amazon.com
2.		Fujifilm X-A3	117 mm	67 mm	40 mm	339 g	410	n	Aug 2016	EUR 449	ebay.com
3.		Canon G5 X Mark II	111 mm	61 mm	46 mm	340 g	230	n	Jul 2019	EUR 929	ebay.com
4.		Canon G7 X Mark III	105 mm	61 mm	41 mm	304 g	235	n	Jul 2019	EUR 779	amazon.com
5.		Canon M100	108 mm	67 mm	35 mm	302 g	295	n	Aug 2017	EUR 479	ebay.com
6.		Canon M200	108 mm	67 mm	35 mm	299 g	315	n	Sep 2019	EUR 539	ebay.com
7.		Canon R10	123 mm	88 mm	83 mm	429 g	450	n	May 2022	EUR 979	amazon.com
8.		Canon R50	116 mm	86 mm	69 mm	375 g	230	n	Feb 2023	EUR 829	amazon.com
9.		Canon R50 V	119 mm	74 mm	45 mm	370 g	390	n	Mar 2025	EUR 759	amazon.com
10.		Canon SX730	110 mm	64 mm	40 mm	300 g	250	n	Apr 2017	EUR 399	ebay.com
11.		Canon SX740	110 mm	64 mm	40 mm	299 g	265	n	Jul 2018	EUR 399	amazon.com
12.		Fujifilm X-A2	117 mm	67 mm	40 mm	350 g	410	n	Jan 2015	EUR 499	ebay.com
13.		Fujifilm X-A5	117 mm	68 mm	40 mm	361 g	450	n	Jan 2018	EUR 449	ebay.com
14.		Fujifilm X-A10	117 mm	67 mm	40 mm	331 g	410	n	Dec 2016	EUR 449	ebay.com
15.		Fujifilm X-E3	121 mm	74 mm	43 mm	337 g	350	n	Sep 2017	EUR 899	ebay.com
16.		Fujifilm X-T20	118 mm	83 mm	41 mm	383 g	350	n	Jan 2017	EUR 799	ebay.com
17.		Panasonic TZ95	112 mm	69 mm	42 mm	327 g	380	n	Feb 2019	EUR 449	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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The X-A3 was launched at a somewhat lower price (by 17 percent) than the R100, which makes it more attractive for photographers on a tight budget. 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 sensor inside a digital camera is one of the key determinants 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 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 X-A3 is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (R100) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Even though the X-A3 has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the X-A3 has a lower pixel density and larger individual pixels (with a pixel pitch of 3.92μm versus 3.72μm for the R100), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the R100 is much more recent (by 6 years and 8 months) than the X-A3, and its sensor will have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the R100 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The R100 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS R100 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Fujifilm X-A3 are ISO 200 to ISO 6400, 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 is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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 R100	APS-C	24.0	6000	4000	4k/24p	24.1	13.9	2197	84
2.		Fujifilm X-A3	APS-C	24.0	6000	4000	1080/60p	23.8	13.1	1663	81
3.		Canon G5 X Mark II	1-inch	20.0	5472	3648	4K/30p	22.2	12.4	583	65
4.		Canon G7 X Mark III	1-inch	20.0	5472	3648	4K/30p	22.2	12.4	583	65
5.		Canon M100	APS-C	24.0	6000	4000	1080/60p	23.5	12.9	1272	78
6.		Canon M200	APS-C	24.0	6000	4000	4k/25p	24.0	13.5	1836	82
7.		Canon R10	APS-C	24.0	6000	4000	4k/60p	24.1	13.8	2085	84
8.		Canon R50	APS-C	24.0	6000	4000	4K/30p	24.1	13.9	2168	84
9.		Canon R50 V	APS-C	24.0	6000	4000	4K/60p	24.1	14.1	2383	85
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.		Fujifilm X-A2	APS-C	16.0	4896	3264	1080/30p	23.6	12.8	1515	79
13.		Fujifilm X-A5	APS-C	24.0	6000	4000	4K/15p	24.0	13.3	1800	82
14.		Fujifilm X-A10	APS-C	16.0	4896	3264	1080/30p	23.9	13.2	1691	81
15.		Fujifilm X-E3	APS-C	24.0	6000	4000	4K/30p	23.9	13.3	1764	82
16.		Fujifilm X-T20	APS-C	24.0	6000	4000	4K/30p	23.9	13.2	1704	81
17.		Panasonic TZ95	1/2.3	20.2	5184	3888	4K/30p	20.7	12.2	1103	52
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 R100 provides a higher video resolution than the X-A3. It can shoot video footage at 4k/24p, while the Fujifilm is limited to 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the R100 has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the X-A3 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon R100 and Fujifilm X-A3 in connection with corresponding information for a sample of similar cameras.

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 R100	2360	n	3.0 / 1040	fixed	n	1/4000s	6.5/s	Y	n
2.		Fujifilm X-A3	none	n	3.0 / 1040	tilting	Y	1/4000s	6.0/s	Y	n
3.		Canon G5 X Mark II	2360	n	3.0 / 1040	tilting	Y	1/2000s	30/s	Y	Y
4.		Canon G7 X Mark III	none	n	3.0 / 1040	tilting	Y	1/2000s	30/s	Y	Y
5.		Canon M100	none	n	3.0 / 1040	tilting	Y	1/4000s	6.1/s	Y	n
6.		Canon M200	none	n	3.0 / 1040	tilting	Y	1/4000s	6.1/s	Y	n
7.		Canon R10	2360	n	3.0 / 1040	swivel	Y	1/8000s	15.0/s	Y	n
8.		Canon R50	2360	n	3.0 / 1620	swivel	Y	1/4000s	12.0/s	Y	n
9.		Canon R50 V	none	n	3.0 / 1040	swivel	Y	1/4000s	12.0/s	n	n
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.		Fujifilm X-A2	none	n	3.0 / 920	tilting	n	1/4000s	5.6/s	Y	n
13.		Fujifilm X-A5	none	n	3.0 / 1040	tilting	Y	1/4000s	6.0/s	Y	n
14.		Fujifilm X-A10	none	n	3.0 / 1040	tilting	n	1/4000s	6.0/s	Y	n
15.		Fujifilm X-E3	2360	n	3.0 / 1040	fixed	Y	1/4000s	8.0/s	n	n
16.		Fujifilm X-T20	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
17.		Panasonic TZ95	2330	n	3.0 / 1040	tilting	Y	1/2000s	10.0/s	Y	Y
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 X-A3 has a touchscreen, while the R100 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, both cameras under consideration feature an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Canon R100 and the Fujifilm X-A3 both have 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 R100 and the X-A3 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 R100 and Fujifilm X-A3 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 R100	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
2.		Fujifilm X-A3	Y	stereo / mono	-	-	micro	2.0	Y	-	-
3.		Canon G5 X Mark II	-	stereo / mono	-	-	micro	3.1	Y	-	Y
4.		Canon G7 X Mark III	-	stereo / mono	Y	-	micro	3.1	Y	-	Y
5.		Canon M100	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
6.		Canon M200	-	stereo / mono	-	-	micro	2.0	Y	-	Y
7.		Canon R10	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
8.		Canon R50	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
9.		Canon R50 V	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
10.		Canon SX730	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
11.		Canon SX740	-	stereo / mono	-	-	micro	2.0	Y	-	Y
12.		Fujifilm X-A2	Y	stereo / mono	-	-	mini	2.0	Y	-	-
13.		Fujifilm X-A5	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
14.		Fujifilm X-A10	-	stereo / mono	-	-	micro	2.0	Y	-	-
15.		Fujifilm X-E3	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
16.		Fujifilm X-T20	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
17.		Panasonic TZ95	-	stereo / mono	-	-	micro	2.0	Y	-	Y

It is notable that the R100 has a microphone port, which is missing on the X-A3. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

The R100 is a recent model that features in the current product line-up of Canon. In contrast, the X-A3 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the X-A3 was succeeded by the Fujifilm X-A5. Further information on the features and operation of the R100 and X-A3 can be found, respectively, in the Canon R100 Manual (free pdf) or the online Fujifilm X-A3 Manual.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon R100 or the Fujifilm X-A3 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

Advantages of the Canon EOS R100:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better video: Provides higher definition movie capture (4k/24p vs 1080/60p).
• 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 electronic viewfinder for image composition and settings control.
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More modern: Reflects 6 years and 8 months of technical progress since the X-A3 launch.

Reasons to prefer the Fujifilm X-A3:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• 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.
• More compact: Is smaller (117x67mm vs 116x86mm) and will fit more readily into a bag.
• Easier travel charging: Can be conveniently charged via its USB port.
• More affordable: Was released into a lower priced segment (17 percent cheaper at launch).
• More heavily discounted: Has been around for much longer (launched in August 2016).

If the count of relative strengths (bullet points above) is taken as a measure, the X-A3 comes out slightly ahead of the R100 (8 : 7 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 R100 and the Fujifilm X-A3 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 incomplete and does no justice, for example, to the way the R100 or the X-A3 perform in practice. 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	Street Price
1.		Canon R100	3/5	o	4.5/5	79/100	..	3.5/5	May 2023	EUR 579	amazon.com
2.		Fujifilm X-A3	..	..	..	74/100	4.5/5	4/5	Aug 2016	EUR 449	ebay.com
3.		Canon G5 X Mark II	4/5	+	4/5	82/100	..	4/5	Jul 2019	EUR 929	ebay.com
4.		Canon G7 X Mark III	..	+ +	4/5	81/100	4/5	..	Jul 2019	EUR 779	amazon.com
5.		Canon M100	3/5	+	..	..	4/5	3.5/5	Aug 2017	EUR 479	ebay.com
6.		Canon M200	..	+	3/5	79/100	4/5	4/5	Sep 2019	EUR 539	ebay.com
7.		Canon R10	4/5	..	4.5/5	87/100	4/5	4.5/5	May 2022	EUR 979	amazon.com
8.		Canon R50	4/5	+ +	4.5/5	84/100	..	4.5/5	Feb 2023	EUR 829	amazon.com
9.		Canon R50 V	..	..	..	84/100	..	..	Mar 2025	EUR 759	amazon.com
10.		Canon SX730	..	+	..	..	4/5	4/5	Apr 2017	EUR 399	ebay.com
11.		Canon SX740	..	+	3.5/5	..	4/5	4/5	Jul 2018	EUR 399	amazon.com
12.		Fujifilm X-A2	4/5	..	..	..	4.5/5	4.5/5	Jan 2015	EUR 499	ebay.com
13.		Fujifilm X-A5	..	+	4.1/5	..	4/5	3.5/5	Jan 2018	EUR 449	ebay.com
14.		Fujifilm X-A10	..	..	..	..	4/5	4/5	Dec 2016	EUR 449	ebay.com
15.		Fujifilm X-E3	4.5/5	+	4.5/5	84/100	4.5/5	4.5/5	Sep 2017	EUR 899	ebay.com
16.		Fujifilm X-T20	5/5	+ +	5/5	82/100	5/5	4.5/5	Jan 2017	EUR 799	ebay.com
17.		Panasonic TZ95	..	+ +	..	..	4.5/5	..	Feb 2019	EUR 449	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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods 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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