Fujifilm X-S10 vs Sony RX1R III

The Fujifilm X-S10 and the Sony Cyber-shot DSC-RX1R III are two digital cameras that were revealed to the public, respectively, in October 2020 and July 2025. The X-S10 is a mirrorless interchangeable lens camera, while the RX1R III is a fixed lens compact. The cameras are based on an APS-C (X-S10) and a full frame (RX1R III) sensor. The Fujifilm has a resolution of 26 megapixels, whereas the Sony provides 60.2 MP.

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

Headline Specifications

Fujifilm X-S10		Sony RX1R III
Mirrorless system camera		Fixed lens compact camera
Fujifilm X mount lenses		35mm f/2.0
26 MP – APS-C sensor		60.2 MP – Full Frame sensor
4K/30p Video		4K/30p Video
ISO 160-12,800 (80 - 51,200)		ISO 100-32,000 (50 - 102,400)
Electronic viewfinder (2360k dots)		Electronic viewfinder (2360k dots)
3.0" LCD – 1040k dots		3.0" LCD – 2360k dots
Swivel touchscreen		Fixed touchscreen
8 shutter flaps per second		5 shutter flaps per second
In-body stabilization		no shake reduction
not weather sealed		Weathersealed body
325 shots per battery charge		300 shots per battery charge
126 x 85 x 65 mm, 465 g		113 x 68 x 88 mm, 498 g

Check X-S10 price at
amazon.com
Check RX1R III price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-S10 and the Sony Cyber-shot DSC-RX1R III? 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 Fujifilm X-S10 and the Sony RX1R III are illustrated in the side-by-side display below. 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.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX1R III is notably smaller (28 percent) than the Fujifilm X-S10. It is noteworthy in this context that the RX1R III is splash and dust-proof, while the X-S10 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX1R III has a lens built in, whereas the X-S10 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-S10 and their specifications in the Fujinon X Lens Catalog.

Concerning battery life, the X-S10 gets 325 shots out of its Fujifilm NP-W126S battery, while the RX1R III can take 300 images on a single charge of its Sony NP-FW50 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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	Street Price
1.		Fujifilm X-S10	126 mm	85 mm	65 mm	465 g	325	n	Oct 2020	US$ 999	amazon.com
2.		Sony RX1R III	113 mm	68 mm	88 mm	498 g	300	Y	Jul 2025	US$ 5 099	amazon.com
3.		Fujifilm X-A7	119 mm	68 mm	41 mm	320 g	440	n	Sep 2019	US$ 499	ebay.com
4.		Fujifilm X-E3	121 mm	74 mm	43 mm	337 g	350	n	Sep 2017	US$ 899	ebay.com
5.		Fujifilm X-E4	121 mm	73 mm	33 mm	364 g	380	n	Jan 2021	US$ 849	ebay.com
6.		Fujifilm X-S20	128 mm	85 mm	65 mm	491 g	750	n	May 2023	US$ 1 299	amazon.com
7.		Fujifilm X-T20	118 mm	83 mm	41 mm	383 g	350	n	Jan 2017	US$ 899	ebay.com
8.		Fujifilm X-T30	118 mm	83 mm	47 mm	383 g	380	n	Feb 2019	US$ 899	ebay.com
9.		Fujifilm X-T30 II	118 mm	83 mm	47 mm	383 g	380	n	Sep 2021	US$ 899	ebay.com
10.		Fujifilm X-T100	121 mm	83 mm	47 mm	448 g	430	n	May 2018	US$ 599	ebay.com
11.		Leica Q3	130 mm	80 mm	93 mm	743 g	350	Y	May 2023	US$ 5 999	amazon.com
12.		Ricoh GR III	109 mm	62 mm	33 mm	257 g	200	n	Feb 2019	US$ 899	amazon.com
13.		Sony A7	127 mm	94 mm	48 mm	474 g	340	Y	Oct 2013	US$ 1 699	ebay.com
14.		Sony A7R	127 mm	94 mm	48 mm	465 g	340	Y	Oct 2013	US$ 2 299	ebay.com
15.		Sony A7S	127 mm	94 mm	48 mm	489 g	380	Y	Apr 2014	US$ 2 499	ebay.com
16.		Sony A6400	120 mm	67 mm	50 mm	403 g	410	Y	Jan 2019	US$ 899	amazon.com
17.		Sony RX1R II	113 mm	65 mm	72 mm	507 g	220	n	Oct 2015	US$ 3 299	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 naturally be influenced heavily by the price. 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. 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. 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. 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Fujifilm X-S10 features an APS-C sensor and the Sony RX1R III a full frame sensor. The sensor area in the RX1R III is 132 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 60.2MP, the RX1R III offers a higher resolution than the X-S10 (26MP), but the RX1R III nevertheless has the same individual pixel size (pixel pitch of 3.76μm) as the X-S10 due to its larger sensor. Moreover, the RX1R III is a much more recent model (by 4 years and 9 months) than the X-S10, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Sony RX1R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the RX1R III for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 cm. The corresponding values for the Fujifilm X-S10 are 31.2 x 20.8 inches or 79.2 x 52.8 cm for good quality, 25 x 16.6 inches or 63.4 x 42.3 cm for very good quality, and 20.8 x 13.9 inches or 52.8 x 35.2 cm for excellent quality prints.

The Fujifilm X-S10 has a native sensitivity range from ISO 160 to ISO 12800, which can be extended to ISO 80-51200. The corresponding ISO settings for the Sony Cyber-shot DSC-RX1R III are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

Technology-wise, both cameras are equipped with BSI-CMOS (Backside Illuminated Complementary Metal–Oxide–Semiconductor) sensors. The X-S10 uses Fujifilm's X-Trans layout of photosites, while the RX1R III employs the more common Bayer array.

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 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.		Fujifilm X-S10	APS-C	26.0	6240	4160	4K/30p	24.2	13.7	2057	85
2.		Sony RX1R III	Full Frame	60.2	9504	6336	4K/30p	25.4	14.9	3417	97
3.		Fujifilm X-A7	APS-C	24.0	6000	4000	4K/30p	24.1	13.6	1955	84
4.		Fujifilm X-E3	APS-C	24.0	6000	4000	4K/30p	23.9	13.3	1764	82
5.		Fujifilm X-E4	APS-C	26.0	6240	4160	4K/30p	24.2	13.7	2085	85
6.		Fujifilm X-S20	APS-C	26.0	6240	4160	4K/60p	24.3	14.0	2315	86
7.		Fujifilm X-T20	APS-C	24.0	6000	4000	4K/30p	23.9	13.2	1704	81
8.		Fujifilm X-T30	APS-C	26.0	6240	4160	4K/30p	24.1	13.5	1895	83
9.		Fujifilm X-T30 II	APS-C	26.0	6240	4160	4K/30p	24.2	13.8	2144	85
10.		Fujifilm X-T100	APS-C	24.0	6000	4000	4K/15p	24.0	13.4	1829	83
11.		Leica Q3	Full Frame	60.3	9528	6328	8K/30p	25.4	14.7	3216	96
12.		Ricoh GR III	APS-C	24.0	6000	4000	1080/60p	24.1	13.5	1897	83
13.		Sony A7	Full Frame	24.0	6000	4000	1080/60p	24.8	14.2	2248	90
14.		Sony A7R	Full Frame	36.2	7360	4912	1080/60p	25.6	14.1	2746	95
15.		Sony A7S	Full Frame	12.0	4240	2832	1080/60p	23.9	13.2	3702	87
16.		Sony A6400	APS-C	24.0	6000	4000	4K/30p	24.0	13.6	1431	83
17.		Sony RX1R II	Full Frame	42.2	7952	5304	1080/60p	25.8	13.9	3204	97
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 (4K/30p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The X-S10 and the RX1R III are similar in the sense that both feature an electronic viewfinder, which is helpful when framing images in bright sunlight. Moreover, their viewfinders offer an identical resolution of 2360k dots. The table below summarizes some of the other core capabilities of the Fujifilm X-S10 and Sony RX1R III 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.		Fujifilm X-S10	2360	n	3.0 / 1040	swivel	Y	1/4000s	8.0/s	Y	Y
2.		Sony RX1R III	2360	n	3.0 / 2360	fixed	Y	1/4000s	5.0/s	n	n
3.		Fujifilm X-A7	none	n	3.5 / 2760	swivel	Y	1/4000s	6.0/s	Y	n
4.		Fujifilm X-E3	2360	n	3.0 / 1040	fixed	Y	1/4000s	8.0/s	n	n
5.		Fujifilm X-E4	2360	n	3.0 / 1620	tilting	Y	1/4000s	8.0/s	n	n
6.		Fujifilm X-S20	2360	n	3.0 / 1840	swivel	Y	1/4000s	8.0/s	Y	Y
7.		Fujifilm X-T20	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
8.		Fujifilm X-T30	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
9.		Fujifilm X-T30 II	2360	n	3.0 / 1620	tilting	Y	1/4000s	8.0/s	Y	n
10.		Fujifilm X-T100	2360	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
11.		Leica Q3	5760	n	3.0 / 1840	tilting	Y	1/2000s	15.0/s	n	Y
12.		Ricoh GR III	optional	n	3.0 / 1037	fixed	Y	1/4000s	4.0/s	n	Y
13.		Sony A7	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	n
14.		Sony A7R	2400	n	3.0 / 1230	tilting	n	1/8000s	4.0/s	n	n
15.		Sony A7S	2400	n	3.0 / 921	tilting	n	1/8000s	5.0/s	n	n
16.		Sony A6400	2359	n	3.0 / 922	tilting	Y	1/4000s	11.0/s	Y	n
17.		Sony RX1R II	2360	n	3.0 / 1229	tilting	n	1/4000s	5.0/s	n	n
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-S10 has one, while the RX1R III does not. While the built-in flash of the X-S10 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-S10 and the Sony RX1R III 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 X-S10 and the RX1R III write their files to SDXC cards. The RX1R III supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the X-S10 can use UHS-I cards (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-S10 and Sony Cyber-shot DSC-RX1R III 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-S10	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
2.		Sony RX1R III	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
3.		Fujifilm X-A7	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
4.		Fujifilm X-E3	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
5.		Fujifilm X-E4	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
6.		Fujifilm X-S20	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
7.		Fujifilm X-T20	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
8.		Fujifilm X-T30	Y	stereo / mono	Y	-	micro	3.1	Y	-	Y
9.		Fujifilm X-T30 II	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
10.		Fujifilm X-T100	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
11.		Leica Q3	Y	stereo / mono	-	-	micro	3.1	Y	-	Y
12.		Ricoh GR III	Y	stereo / mono	-	-	-	3.0	Y	-	Y
13.		Sony A7	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
14.		Sony A7R	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
15.		Sony A7S	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
16.		Sony A6400	Y	stereo / mono	Y	-	micro	2.0	Y	Y	Y
17.		Sony RX1R II	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-

Both the X-S10 and the RX1R III are recent models that are part of the current product line-up. The RX1R III replaced the earlier Sony RX1R II, while the X-S10 does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Sony websites.

Review summary

So what conclusions can be drawn? Is the Fujifilm X-S10 better than the Sony RX1R III or vice versa? A synthesis of the relative strong points of each of the models is listed below.

Reasons to prefer the Fujifilm X-S10:

• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (8 vs 5 flaps/sec) to capture the decisive moment.
• More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
• Sharper images: Has hand-shake reducing image stabilization built-in.
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• More heavily discounted: Has been available for much longer (launched in October 2020).

Advantages of the Sony Cyber-shot DSC-RX1R III:

• More detail: Has more megapixels (60.2 vs 26MP), which boosts linear resolution by 52%.
• Better image quality: Is equipped with a larger and more technologically advanced sensor.
• Richer colors: The sensor size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
• Better sound control: Has a headphone port that enables audio monitoring while recording.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.7x vs 0.62x).
• More detailed LCD: Has a higher resolution rear screen (2360k vs 1040k dots).
• Ready to shoot: Has an integrated lens, whereas the X-S10 necessitates an extra lens.
• More compact: Is smaller (113x68mm vs 126x85mm) and will fit more readily into a bag.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
• More modern: Reflects 4 years and 9 months of technical progress since the X-S10 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the RX1R III is the clear winner of the contest (13 : 7 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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-S10 and the Sony RX1R III 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the X-S10 and the RX1R III 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 why hands-on reviews by experts 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	Street Price
1.		Fujifilm X-S10	5/5	..	4.5/5	86/100	4.5/5	4.5/5	Oct 2020	US$ 999	amazon.com
2.		Sony RX1R III	..	..	..	..	..	..	Jul 2025	US$ 5 099	amazon.com
3.		Fujifilm X-A7	3/5	..	3.5/5	81/100	4/5	3.5/5	Sep 2019	US$ 499	ebay.com
4.		Fujifilm X-E3	4.5/5	+	4.5/5	84/100	4.5/5	4.5/5	Sep 2017	US$ 899	ebay.com
5.		Fujifilm X-E4	4/5	..	4/5	..	4.5/5	4/5	Jan 2021	US$ 849	ebay.com
6.		Fujifilm X-S20	5/5	+ +	5/5	86/100	..	4.5/5	May 2023	US$ 1 299	amazon.com
7.		Fujifilm X-T20	5/5	+ +	5/5	82/100	5/5	4.5/5	Jan 2017	US$ 899	ebay.com
8.		Fujifilm X-T30	5/5	+ +	5/5	84/100	4.5/5	4.5/5	Feb 2019	US$ 899	ebay.com
9.		Fujifilm X-T30 II	5/5	..	4/5	..	4.5/5	4.5/5	Sep 2021	US$ 899	ebay.com
10.		Fujifilm X-T100	4/5	+	4.5/5	79/100	4/5	4.5/5	May 2018	US$ 599	ebay.com
11.		Leica Q3	5/5	..	4.5/5	..	..	4.5/5	May 2023	US$ 5 999	amazon.com
12.		Ricoh GR III	4/5	..	3.5/5	81/100	4/5	..	Feb 2019	US$ 899	amazon.com
13.		Sony A7	5/5	+ +	..	80/100	5/5	5/5	Oct 2013	US$ 1 699	ebay.com
14.		Sony A7R	5/5	+ +	..	82/100	4.5/5	5/5	Oct 2013	US$ 2 299	ebay.com
15.		Sony A7S	4/5	..	..	86/100	4.5/5	5/5	Apr 2014	US$ 2 499	ebay.com
16.		Sony A6400	4/5	+	4/5	85/100	4.5/5	4/5	Jan 2019	US$ 899	amazon.com
17.		Sony RX1R II	5/5	..	..	82/100	..	4.5/5	Oct 2015	US$ 3 299	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Check X-S10 price at
amazon.com
Check RX1R III price at
amazon.com

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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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Check X-S10 price at
amazon.com
Check RX1R III price at
amazon.com

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