Fujifilm X-S20 vs Sony A7 II

The Fujifilm X-S20 and the Sony Alpha A7 II are two digital cameras that were revealed to the public, respectively, in May 2023 and November 2014. Both the X-S20 and the A7 II are mirrorless interchangeable lens cameras that are based on an APS-C (X-S20) and a full frame (A7 II) sensor. The Fujifilm has a resolution of 26 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications

Fujifilm X-S20		Sony A7 II
Mirrorless system camera		Mirrorless system camera
Fujifilm X mount lenses		Sony E mount lenses
26 MP – APS-C sensor		24 MP – Full Frame sensor
4K/60p Video		1080/60p Video
ISO 160-12,800 (80 - 51,200)		ISO 100-25,600 (50 - 51,200)
Electronic viewfinder (2360k dots)		Electronic viewfinder (2400k dots)
3.0" LCD – 1840k dots		3.0" LCD – 1230k dots
Swivel touchscreen		Tilting screen (no touchscreen)
8 shutter flaps per second		5 shutter flaps per second
In-body stabilization		In-body stabilization
not weather sealed		Weathersealed body
750 shots per battery charge		350 shots per battery charge
128 x 85 x 65 mm, 491 g		127 x 96 x 60 mm, 599 g

Check X-S20 price at
amazon.com
Check A7 II offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-S20 and the Sony Alpha A7 II? 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-S20 and the Sony A7 II. 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.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 II is notably larger (12 percent) than the Fujifilm X-S20. Moreover, the A7 II is markedly heavier (22 percent) than the X-S20. It is noteworthy in this context that the A7 II is splash and dust-proof, while the X-S20 does not feature any corresponding weather-sealing.

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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Fujinon X Lens Catalog (X-S20) and the Sony FE Lens Catalog (A7 II). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the X-S20 gets 750 shots out of its Fujifilm NP-W235 battery, while the A7 II can take 350 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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-S20	128 mm	85 mm	65 mm	491 g	750	n	May 2023	EUR 1 399	amazon.com
2.		Sony A7 II	127 mm	96 mm	60 mm	599 g	350	Y	Nov 2014	EUR 2 099	ebay.com
3.		Canon R8	133 mm	86 mm	70 mm	461 g	220	n	Feb 2023	EUR 1 799	amazon.com
4.		Fujifilm X-E4	121 mm	73 mm	33 mm	364 g	380	n	Jan 2021	EUR 899	amazon.com
5.		Fujifilm X-H2S	136 mm	93 mm	85 mm	660 g	580	Y	May 2022	EUR 2 749	amazon.com
6.		Fujifilm X-S10	126 mm	85 mm	65 mm	465 g	325	n	Oct 2020	EUR 999	amazon.com
7.		Fujifilm X-T3	133 mm	93 mm	59 mm	539 g	390	Y	Sep 2018	EUR 1 499	ebay.com
8.		Fujifilm X-T4	135 mm	93 mm	64 mm	607 g	500	Y	Feb 2020	EUR 1 799	ebay.com
9.		Fujifilm X-T5	130 mm	91 mm	64 mm	557 g	580	Y	Nov 2022	EUR 1 999	amazon.com
10.		Fujifilm X-T100	121 mm	83 mm	47 mm	448 g	430	n	May 2018	EUR 599	ebay.com
11.		Fujifilm X100F	127 mm	75 mm	52 mm	469 g	390	n	Jan 2017	EUR 1 399	ebay.com
12.		Sony A7	127 mm	94 mm	48 mm	474 g	340	Y	Oct 2013	EUR 1 499	ebay.com
13.		Sony A7 III	127 mm	96 mm	74 mm	650 g	610	Y	Feb 2018	EUR 2 299	amazon.com
14.		Sony A7R II	127 mm	96 mm	60 mm	625 g	290	Y	Jun 2015	EUR 3 499	ebay.com
15.		Sony A7S II	127 mm	96 mm	60 mm	627 g	370	Y	Sep 2015	EUR 3 399	ebay.com
16.		Sony A9	127 mm	96 mm	63 mm	673 g	650	Y	Apr 2017	EUR 5 299	ebay.com
17.		Sony A6700	122 mm	69 mm	64 mm	493 g	570	Y	Jul 2023	EUR 1 699	amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X-S20 was launched at a markedly lower price (by 35 percent) than the A7 II, which puts it into a different market segment. 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 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 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Fujifilm X-S20 features an APS-C sensor and the Sony A7 II a full frame sensor. The sensor area in the A7 II is 133 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.

Despite having a smaller sensor, the Fujifilm X-S20 offers a higher resolution of 26 megapixels, compared with 24 MP of the Sony A7 II. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 5.97μm for the A7 II). However, it should be noted that the X-S20 is much more recent (by 8 years and 6 months) than the A7 II, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the X-S20 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The Fujifilm X-S20 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 Alpha A7 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.

In terms of underlying technology, the X-S20 is build around a BSI-CMOS sensor, while the A7 II uses a CMOS imager. The X-S20 uses Fujifilm's X-Trans layout of photosites, while the A7 II employs the more common Bayer array.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 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-S20	APS-C	26.0	6240	4160	4K/60p	24.3	14.0	2315	86
2.		Sony A7 II	Full Frame	24.0	6000	4000	1080/60p	24.9	13.6	2449	90
3.		Canon R8	Full Frame	24.0	6000	4000	4k/60p	24.5	14.7	3295	93
4.		Fujifilm X-E4	APS-C	26.0	6240	4160	4K/30p	24.2	13.7	2085	85
5.		Fujifilm X-H2S	APS-C	26.0	6240	4160	6.2k/30p	24.3	13.9	2224	86
6.		Fujifilm X-S10	APS-C	26.0	6240	4160	4K/30p	24.2	13.7	2057	85
7.		Fujifilm X-T3	APS-C	26.0	6240	4160	4K/60p	24.0	13.4	1853	83
8.		Fujifilm X-T4	APS-C	26.0	6240	4160	4K/60p	24.1	13.6	1995	84
9.		Fujifilm X-T5	APS-C	39.8	7728	5152	6.2k/30p	24.3	13.9	2264	86
10.		Fujifilm X-T100	APS-C	24.0	6000	4000	4K/15p	24.0	13.4	1829	83
11.		Fujifilm X100F	APS-C	24.0	6000	4000	1080/60p	23.9	13.2	1704	81
12.		Sony A7	Full Frame	24.0	6000	4000	1080/60p	24.8	14.2	2248	90
13.		Sony A7 III	Full Frame	24.0	6000	4000	4K/30p	25.0	14.7	3730	96
14.		Sony A7R II	Full Frame	42.2	7952	5304	4K/30p	26.0	13.9	3434	98
15.		Sony A7S II	Full Frame	12.0	4240	2832	4K/30p	23.6	13.3	2993	85
16.		Sony A9	Full Frame	24.0	6000	4000	4K/30p	24.9	13.3	3517	92
17.		Sony A6700	APS-C	25.6	6192	4128	4K/120p	24.3	14.0	2329	86
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 are equipped with sensors that have a sufficiently high read-out speed for moving images, but the X-S20 provides a higher video resolution than the A7 II. It can shoot video footage at 4K/60p, while the Sony is limited to 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the A7 II offers a slightly higher resolution than the one in the X-S20 (2400k vs 2360k dots). The adjacent table lists some of the other core features of the Fujifilm X-S20 and Sony A7 II 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.		Fujifilm X-S20	2360	n	3.0 / 1840	swivel	Y	1/4000s	8.0/s	Y	Y
2.		Sony A7 II	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	Y
3.		Canon R8	2360	n	3.0 / 1620	swivel	Y	1/4000s	6.0/s	n	n
4.		Fujifilm X-E4	2360	n	3.0 / 1620	tilting	Y	1/4000s	8.0/s	n	n
5.		Fujifilm X-H2S	5760	Y	3.0 / 1620	swivel	Y	1/8000s	15.0/s	n	Y
6.		Fujifilm X-S10	2360	n	3.0 / 1040	swivel	Y	1/4000s	8.0/s	Y	Y
7.		Fujifilm X-T3	3690	n	3.0 / 1040	full-flex	Y	1/8000s	11.0/s	n	n
8.		Fujifilm X-T4	3690	n	3.0 / 1620	swivel	Y	1/8000s	15.0/s	n	Y
9.		Fujifilm X-T5	3690	n	3.0 / 1840	full-flex	Y	1/8000s	15.0/s	n	Y
10.		Fujifilm X-T100	2360	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
11.		Fujifilm X100F	2360	n	3.0 / 1040	fixed	n	1/4000s	8.0/s	Y	n
12.		Sony A7	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	n
13.		Sony A7 III	2359	n	3.0 / 922	tilting	Y	1/8000s	10.0/s	n	Y
14.		Sony A7R II	2400	n	3.0 / 1229	tilting	n	1/8000s	5.0/s	n	Y
15.		Sony A7S II	2400	n	3.0 / 1229	tilting	n	1/8000s	5.0/s	n	Y
16.		Sony A9	3686	n	3.0 / 1440	tilting	Y	1/8000s	20.0/s	n	Y
17.		Sony A6700	2360	n	3.0 / 1037	swivel	Y	1/4000s	11.0/s	n	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-S20 has one, while the A7 II does not. While the built-in flash of the X-S20 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, the X-S20 is one of those camera that have an additional 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-S20 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-S20 writes its imaging data to SDXC cards, while the A7 II uses SDXC or Memory Stick PRO Duo cards. The X-S20 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the A7 II 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-S20 and Sony Alpha A7 II 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-S20	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
2.		Sony A7 II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
3.		Canon R8	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
4.		Fujifilm X-E4	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
5.		Fujifilm X-H2S	Y	stereo / mono	Y	Y	full	3.0	Y	-	Y
6.		Fujifilm X-S10	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
7.		Fujifilm X-T3	Y	stereo / mono	Y	Y	micro	3.1	Y	-	Y
8.		Fujifilm X-T4	Y	stereo / mono	Y	-	micro	3.1	Y	-	Y
9.		Fujifilm X-T5	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
10.		Fujifilm X-T100	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
11.		Fujifilm X100F	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
12.		Sony A7	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
13.		Sony A7 III	Y	stereo / mono	Y	Y	micro	3.1	Y	Y	Y
14.		Sony A7R II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
15.		Sony A7S II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
16.		Sony A9	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	Y
17.		Sony A6700	Y	stereo / mono	Y	Y	YES	3.2	Y	Y	Y

The X-S20 is a recent model that features in the current product line-up of Fujifilm. In contrast, the A7 II has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A7 II was succeeded by the Sony A7 III. Further information on the features and operation of the X-S20 and A7 II can be found, respectively, in the Fujifilm X-S20 Manual (free pdf) or the online Sony A7 II Manual.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Fujifilm X-S20 and the Sony A7 II? Which camera is better? The listing below highlights the relative strengths of the two models.

Arguments in favor of the Fujifilm X-S20:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better video: Provides higher definition movie capture (4K/60p vs 1080/60p).
• More detailed LCD: Has a higher resolution rear screen (1840k vs 1230k dots).
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or 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.
• Faster burst: Shoots at higher frequency (8 vs 5 flaps/sec) to capture the decisive moment.
• Less disturbing: Has an electronic shutter option for completely silent shooting.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More compact: Is smaller (128x85mm vs 127x96mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 108g or 18 percent) and hence easier to carry around.
• Longer lasting: Can take more shots (750 versus 350) on a single battery charge.
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
• More affordable: Was introduced into a lower priced category (35 percent cheaper at launch).
• More modern: Reflects 8 years and 6 months of technical progress since the A7 II launch.

Advantages of the Sony Alpha A7 II:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.62x).
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More heavily discounted: Has been around for much longer (launched in November 2014).

If the count of relative strengths (bullet points above) is taken as a measure, the X-S20 is the clear winner of the match-up (18 : 6 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 Fujifilm X-S20 and the Sony A7 II 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 says little about, for example, the shooting experience and imaging performance of the X-S20 and the A7 II in practical situations. 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 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-S20	5/5	+ +	5/5	86/100	..	4.5/5	May 2023	EUR 1 399	amazon.com
2.		Sony A7 II	5/5	+	4/5	82/100	4.5/5	5/5	Nov 2014	EUR 2 099	ebay.com
3.		Canon R8	4.5/5	+ +	4.5/5	87/100	4/5	4.5/5	Feb 2023	EUR 1 799	amazon.com
4.		Fujifilm X-E4	4/5	..	4/5	..	4.5/5	4/5	Jan 2021	EUR 899	amazon.com
5.		Fujifilm X-H2S	5/5	+	5/5	90/100	5/5	5/5	May 2022	EUR 2 749	amazon.com
6.		Fujifilm X-S10	5/5	..	4.5/5	86/100	4.5/5	4.5/5	Oct 2020	EUR 999	amazon.com
7.		Fujifilm X-T3	5/5	+ +	4.5/5	88/100	5/5	5/5	Sep 2018	EUR 1 499	ebay.com
8.		Fujifilm X-T4	5/5	+ +	5/5	88/100	5/5	5/5	Feb 2020	EUR 1 799	ebay.com
9.		Fujifilm X-T5	5/5	+ +	4.5/5	90/100	4.5/5	..	Nov 2022	EUR 1 999	amazon.com
10.		Fujifilm X-T100	4/5	+	4.5/5	79/100	4/5	4.5/5	May 2018	EUR 599	ebay.com
11.		Fujifilm X100F	5/5	+	3.9/5	83/100	4.5/5	4.5/5	Jan 2017	EUR 1 399	ebay.com
12.		Sony A7	5/5	+ +	..	80/100	5/5	5/5	Oct 2013	EUR 1 499	ebay.com
13.		Sony A7 III	..	+ +	4.5/5	89/100	5/5	5/5	Feb 2018	EUR 2 299	amazon.com
14.		Sony A7R II	5/5	+ +	5/5	90/100	5/5	5/5	Jun 2015	EUR 3 499	ebay.com
15.		Sony A7S II	5/5	+	..	..	4.5/5	5/5	Sep 2015	EUR 3 399	ebay.com
16.		Sony A9	5/5	+ +	4.8/5	89/100	5/5	5/5	Apr 2017	EUR 5 299	ebay.com
17.		Sony A6700	4.5/5	+	4.5/5	88/100	4.5/5	4.5/5	Jul 2023	EUR 1 699	amazon.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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu 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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