Fujifilm X-A3 vs Sony RX0

The Fujifilm X-A3 and the Sony Cyber-shot DSC-RX0 are two digital cameras that were officially introduced, respectively, in August 2016 and August 2017. The X-A3 is a mirrorless interchangeable lens camera, while the RX0 is a fixed lens compact. The cameras are based on an APS-C (X-A3) and an one-inch (RX0) sensor. The Fujifilm has a resolution of 24 megapixels, whereas the Sony provides 15.4 MP.

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

Headline Specifications

Fujifilm X-A3		Sony RX0
Mirrorless system camera		Fixed lens compact camera
Fujifilm X mount lenses		24mm f/4.0
24 MP – APS-C sensor		15.4 MP – 1" sensor
1080/60p Video		1080/60p Video
ISO 200-6,400 (100 - 25,600)		ISO 125-12,800
No viewfinder, LCD framing		No viewfinder, LCD framing
3.0" LCD – 1040k dots		1.5" LCD – 230k dots
Tilting touchscreen		Fixed screen (not touch-sensitive)
6 shutter flaps per second		5.5 shutter flaps per second
not weather sealed		Waterproof body (10m)
410 shots per battery charge		240 shots per battery charge
117 x 67 x 40 mm, 339 g		59 x 41 x 30 mm, 110 g

Check X-A3 offers at
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Check RX0 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-A3 and the Sony Cyber-shot DSC-RX0? 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 Fujifilm X-A3 and the Sony RX0. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

The X-A3 can be obtained in three different colors (silver, brown, pink), while the RX0 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 Sony RX0 is considerably smaller (69 percent) than the Fujifilm X-A3. It is noteworthy in this context that the RX0 is splash and dust-proof, while the X-A3 does not feature any corresponding weather-sealing. More than that, the RX0 is water-proof up to 10m and can, thus, be used for underwater photography.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX0 has a lens built in, whereas the X-A3 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the X-A3 and their specifications in the Fujinon X Lens Catalog.

Concerning battery life, the X-A3 gets 410 shots out of its Fujifilm NP-W126S battery, while the RX0 can take 240 images on a single charge of its Sony NP-BJ1 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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.		Fujifilm X-A3	117 mm	67 mm	40 mm	339 g	410	n	Aug 2016	399	ebay.com
2.		Sony RX0	59 mm	41 mm	30 mm	110 g	240	Y	Aug 2017	699	ebay.com
3.		Fujifilm X-T200	121 mm	84 mm	55 mm	370 g	270	n	Jan 2020	699	ebay.com
4.		Fujifilm X-T30	118 mm	83 mm	47 mm	383 g	380	n	Feb 2019	899	ebay.com
5.		Fujifilm X-A7	119 mm	68 mm	41 mm	320 g	440	n	Sep 2019	499	ebay.com
6.		Fujifilm X-A5	117 mm	68 mm	40 mm	361 g	450	n	Jan 2018	399	ebay.com
7.		Fujifilm X-E3	121 mm	74 mm	43 mm	337 g	350	n	Sep 2017	899	ebay.com
8.		Fujifilm X-T20	118 mm	83 mm	41 mm	383 g	350	n	Jan 2017	899	ebay.com
9.		Fujifilm X-A10	117 mm	67 mm	40 mm	331 g	410	n	Dec 2016	399	ebay.com
10.		Fujifilm X-A2	117 mm	67 mm	40 mm	350 g	410	n	Jan 2015	399	ebay.com
11.		Fujifilm X-T10	118 mm	83 mm	41 mm	381 g	350	n	May 2015	799	ebay.com
12.		Fujifilm X-A1	117 mm	67 mm	39 mm	330 g	350	n	Sep 2013	399	ebay.com
13.		Sony RX0 II	59 mm	41 mm	35 mm	132 g	240	Y	Mar 2019	699	amazon.com
14.		Sony RX10 IV	133 mm	94 mm	145 mm	1095 g	400	Y	Sep 2017	1,699	amazon.com
15.		Sony RX10 III	133 mm	94 mm	127 mm	1051 g	420	Y	Mar 2016	1,499	ebay.com
16.		Sony RX10 II	129 mm	88 mm	102 mm	813 g	400	Y	Jun 2015	1,299	ebay.com
17.		Sony RX10	129 mm	88 mm	102 mm	813 g	420	Y	Oct 2013	1,299	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. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 Fujifilm X-A3 features an APS-C sensor and the Sony RX0 an one-inch sensor. The sensor area in the RX0 is 69 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 24MP, the X-A3 offers a higher resolution than the RX0 (15.4MP), but the X-A3 nevertheless has larger individual pixels (pixel pitch of 3.92μm versus 2.74μm for the RX0) due to its larger sensor. However, the RX0 is a somewhat more recent model (by 1 year) than the X-A3, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Fujifilm X-A3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the X-A3 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 Sony RX0 are 24 x 16 inches or 61 x 40.6 cm for good quality, 19.2 x 12.8 inches or 48.8 x 32.5 cm for very good quality, and 16 x 10.7 inches or 40.6 x 27.1 cm for excellent quality prints.

The Fujifilm X-A3 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-25600. The corresponding ISO settings for the Sony Cyber-shot DSC-RX0 are ISO 125 to ISO 12800 (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 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 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.		Fujifilm X-A3	APS-C	24.0	6000	4000	1080/60p	23.8	13.1	1664	81
2.		Sony RX0	1-inch	15.4	4800	3200	1080/60p	22.4	12.4	548	68
3.		Fujifilm X-T200	APS-C	24.0	6000	4000	4K/30p	24.1	13.6	1991	84
4.		Fujifilm X-T30	APS-C	26.0	6240	4160	4K/30p	24.1	13.5	1895	83
5.		Fujifilm X-A7	APS-C	24.0	6000	4000	4K/30p	24.1	13.6	1955	84
6.		Fujifilm X-A5	APS-C	24.0	6000	4000	4K/15p	24.0	13.3	1800	82
7.		Fujifilm X-E3	APS-C	24.0	6000	4000	4K/30p	23.9	13.3	1764	82
8.		Fujifilm X-T20	APS-C	24.0	6000	4000	4K/30p	23.9	13.2	1704	81
9.		Fujifilm X-A10	APS-C	16.0	4896	3264	1080/30p	23.9	13.2	1691	81
10.		Fujifilm X-A2	APS-C	16.0	4896	3264	1080/30p	23.6	12.8	1515	79
11.		Fujifilm X-T10	APS-C	16.0	4896	3264	1080/60p	23.7	12.9	1546	79
12.		Fujifilm X-A1	APS-C	16.0	4896	3264	1080/30p	23.4	12.6	1390	76
13.		Sony RX0 II	1-inch	15.4	4800	3200	4K/30p	22.1	12.4	555	65
14.		Sony RX10 IV	1-inch	20.0	5472	3648	4K/30p	22.0	12.2	408	63
15.		Sony RX10 III	1-inch	20.0	5472	3648	4K/30p	23.1	12.6	472	70
16.		Sony RX10 II	1-inch	20.0	5472	3648	4K/30p	23.0	12.6	531	70
17.		Sony RX10	1-inch	20.0	5472	3648	1080/60p	22.9	12.6	474	69
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. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The X-A3 and the RX0 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 following table reports on some other key feature differences and similarities of the Fujifilm X-A3, the Sony RX0, and comparable 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.		Fujifilm X-A3	none	n	3.0 / 1040	tilting	Y	1/4000s	6.0/s	Y	n
2.		Sony RX0	none	n	1.5 / 230	fixed	n	..	5.5/s	n	n
3.		Fujifilm X-T200	2360	n	3.5 / 2780	swivel	Y	1/4000s	8.0/s	Y	n
4.		Fujifilm X-T30	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
5.		Fujifilm X-A7	none	n	3.5 / 2760	swivel	Y	1/4000s	6.0/s	Y	n
6.		Fujifilm X-A5	none	n	3.0 / 1040	tilting	Y	1/4000s	6.0/s	Y	n
7.		Fujifilm X-E3	2360	n	3.0 / 1040	fixed	Y	1/4000s	8.0/s	n	n
8.		Fujifilm X-T20	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
9.		Fujifilm X-A10	none	n	3.0 / 1040	tilting	n	1/4000s	6.0/s	Y	n
10.		Fujifilm X-A2	none	n	3.0 / 920	tilting	n	1/4000s	5.6/s	Y	n
11.		Fujifilm X-T10	2360	n	3.0 / 920	tilting	n	1/4000s	8.0/s	Y	n
12.		Fujifilm X-A1	none	n	3.0 / 920	tilting	n	1/4000s	5.6/s	Y	n
13.		Sony RX0 II	none	n	1.5 / 230	tilting	n	..	5.5/s	n	n
14.		Sony RX10 IV	2359	Y	3.0 / 1440	tilting	Y	1/2000s	24.0/s	Y	Y
15.		Sony RX10 III	2359	Y	3.0 / 1229	tilting	n	1/2000s	14.0/s	Y	Y
16.		Sony RX10 II	2359	Y	3.0 / 1229	tilting	n	1/3200s	14.0/s	Y	Y
17.		Sony RX10	1440	Y	3.0 / 1229	tilting	n	1/3200s	10.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The X-A3 has one, while the RX0 does not. While the built-in flash of the X-A3 is not very powerful, it can at times be useful as a fill-in light.

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 Fujifilm X-A3 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 X-A3 writes its imaging data to SDXC cards, while the RX0 uses micro SDXC or Memory Stick Micro 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 Fujifilm X-A3 and Sony Cyber-shot DSC-RX0 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.		Fujifilm X-A3	Y	stereo / mono	-	-	micro	2.0	Y	-	-
2.		Sony RX0	-	stereo / mono	Y	-	micro	2.0	Y	-	Y
3.		Fujifilm X-T200	Y	stereo / mono	Y	Y	micro	3.1	Y	-	Y
4.		Fujifilm X-T30	Y	stereo / mono	Y	-	micro	3.1	Y	-	Y
5.		Fujifilm X-A7	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
6.		Fujifilm X-A5	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
7.		Fujifilm X-E3	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
8.		Fujifilm X-T20	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
9.		Fujifilm X-A10	-	stereo / mono	-	-	micro	2.0	Y	-	-
10.		Fujifilm X-A2	Y	stereo / mono	-	-	mini	2.0	Y	-	-
11.		Fujifilm X-T10	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
12.		Fujifilm X-A1	Y	stereo / mono	-	-	mini	2.0	Y	-	-
13.		Sony RX0 II	-	stereo / mono	Y	-	micro	2.0	Y	-	Y
14.		Sony RX10 IV	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
15.		Sony RX10 III	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
16.		Sony RX10 II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
17.		Sony RX10	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-

It is notable that the X-A3 has a hotshoe, while the RX0 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Both the X-A3 and the RX0 have been discontinued, but can regularly be found used on ebay. The X-A3 was replaced by the Fujifilm X-A5, while the RX0 was followed by the Sony RX0 II. Further information on the features and operation of the X-A3 and RX0 can be found, respectively, in the Fujifilm X-A3 Manual (free pdf) or the online Sony RX0 Manual.

Review summary

So how do things add up? Which of the two cameras – the Fujifilm X-A3 or the Sony RX0 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

Reasons to prefer the Fujifilm X-A3:

• More detail: Offers more megapixels (24 vs 15.4MP) with a 25% 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.
• Larger screen: Has a bigger rear LCD (3.0" vs 1.5") 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.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
• Longer lasting: Can take more shots (410 versus 240) on a single battery charge.
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• More heavily discounted: Has been on the market for longer (launched in August 2016).

Arguments in favor of the Sony Cyber-shot DSC-RX0:

• Better sound: Can connect to an external microphone for higher quality sound recording.
• Ready to shoot: Has an integrated lens, whereas the X-A3 necessitates an extra lens.
• More compact: Is smaller (59x41mm vs 117x67mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight even though it has a lens built in (unlike the X-A3).
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 10m).
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More modern: Was introduced somewhat (1 year) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the X-A3 is the clear winner of the match-up (16 : 8 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 Fujifilm X-A3 and the Sony RX0 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Prime Lens Compact 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 X-A3 and the RX0 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 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.		Fujifilm X-A3	..	..	..	74/100	4.5/5	4/5	Aug 2016	399	ebay.com
2.		Sony RX0	..	..	..	..	3.5/5	4/5	Aug 2017	699	ebay.com
3.		Fujifilm X-T200	3.5/5	..	4/5	82/100	4/5	4.5/5	Jan 2020	699	ebay.com
4.		Fujifilm X-T30	5/5	+ +	5/5	84/100	4.5/5	4.5/5	Feb 2019	899	ebay.com
5.		Fujifilm X-A7	3/5	..	3.5/5	81/100	4/5	3.5/5	Sep 2019	499	ebay.com
6.		Fujifilm X-A5	..	+	4.1/5	..	4/5	3.5/5	Jan 2018	399	ebay.com
7.		Fujifilm X-E3	4.5/5	+	4.5/5	84/100	4.5/5	4.5/5	Sep 2017	899	ebay.com
8.		Fujifilm X-T20	5/5	+ +	5/5	82/100	5/5	4.5/5	Jan 2017	899	ebay.com
9.		Fujifilm X-A10	..	..	..	..	4/5	4/5	Dec 2016	399	ebay.com
10.		Fujifilm X-A2	4/5	..	..	..	4.5/5	4.5/5	Jan 2015	399	ebay.com
11.		Fujifilm X-T10	4.5/5	+ +	..	80/100	5/5	5/5	May 2015	799	ebay.com
12.		Fujifilm X-A1	..	..	..	..	4.5/5	4.5/5	Sep 2013	399	ebay.com
13.		Sony RX0 II	..	..	..	..	3.5/5	4/5	Mar 2019	699	amazon.com
14.		Sony RX10 IV	5/5	+	3.5/5	84/100	4.5/5	5/5	Sep 2017	1,699	amazon.com
15.		Sony RX10 III	5/5	+	..	84/100	4.5/5	4.5/5	Mar 2016	1,499	ebay.com
16.		Sony RX10 II	5/5	+ +	..	82/100	4.5/5	4/5	Jun 2015	1,299	ebay.com
17.		Sony RX10	5/5	+	..	80/100	4.5/5	4.5/5	Oct 2013	1,299	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods 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

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