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Fujifilm X100S vs Sony A7 III

The Fujifilm X100S and the Sony Alpha A7 III are two enthusiast cameras that were revealed to the public, respectively, in January 2013 and February 2018. The X100S is a fixed lens compact, while the A7 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (X100S) and a full frame (A7 III) sensor. The Fujifilm has a resolution of 16 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 X100S
versus
Sony A7 III
Fujifilm X100S   Sony A7 III
Fixed lens compact camera Mirrorless system camera
35mm f/2.0 Sony E mount lenses
16 MP – APS-C sensor 24 MP – Full Frame sensor
1080/60p Video 4K/30p Video
ISO 200-6,400 (100 - 25,600) ISO 100-51,200 (50 - 204,800)
Electronic viewfinder (2360k dots) Electronic viewfinder (2359k dots)
2.8" LCD – 460k dots 3.0" LCD – 922k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
6 shutter flaps per second 10 shutter flaps per second
no shake reductionIn-body stabilization
not weather sealedWeathersealed body
330 shots per battery charge610 shots per battery charge
127 x 74 x 54 mm, 445 g 127 x 96 x 74 mm, 650 g
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Check X100S offers at
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Check A7 III price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X100S and the Sony Alpha A7 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.

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Body comparison

The physical size and weight of the Fujifilm X100S and the Sony A7 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 width, height and depth dimensions are rounded to the nearest millimeter.

The X100S can be obtained in two different colors (black, silver), while the A7 III is only available in black.

Size Fujifilm X100S vs Sony A7 III
Compare X100S versus A7 III top
Comparison X100S or A7 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 III is notably larger (30 percent) than the Fujifilm X100S. It is noteworthy in this context that the A7 III is splash and dust-proof, while the X100S does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X100S has a lens built in, whereas the A7 III 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 A7 III and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the X100S gets 330 shots out of its Fujifilm NP-95 battery, while the A7 III can take 610 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A7 III can be charged via the USB port, 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. 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.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Fujifilm X100S 127 mm 74 mm 54 mm 445 g 330 n Jan 2013 1,299ebay.com
2.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
3.
 
Canon G1 X 117 mm 81 mm 65 mm 534 g 250 n Jan 2012 799ebay.com
4.
 
Fujifilm X100F 127 mm 75 mm 52 mm 469 g 390 n Jan 2017 1,299ebay.com
5.
 
Fujifilm X-T10 118 mm 83 mm 41 mm 381 g 350 n May 2015 799ebay.com
6.
 
Fujifilm X30 119 mm 72 mm 60 mm 423 g 470 n Aug 2014 599ebay.com
7.
 
Fujifilm X100T 127 mm 74 mm 52 mm 440 g 330 n Sep 2014 1,299ebay.com
8.
 
Fujifilm X-T1 129 mm 90 mm 47 mm 440 g 350 Y Jan 2014 1,299ebay.com
9.
 
Fujifilm X-Pro1 140 mm 82 mm 43 mm 450 g 300 n Jan 2012 1,699ebay.com
10.
 
Fujifilm X100 126 mm 75 mm 54 mm 445 g 300 n Sep 2010 1,199ebay.com
11.
 
Leica X Typ 113 133 mm 73 mm 78 mm 486 g 350 n Sep 2014 2,295ebay.com
12.
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 Y Aug 2018 1,999ebay.com
13.
 
Nikon Coolpix A 111 mm 64 mm 40 mm 299 g 230 n Mar 2013 1,099ebay.com
14.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
15.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
16.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
17.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X100S was launched at a lower price than the A7 III, despite having a lens built in. 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.

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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Fujifilm X100S features an APS-C sensor and the Sony A7 III a full frame sensor. The sensor area in the A7 III is 130 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.

Fujifilm X100S and Sony A7 III sensor measures

With 24MP, the A7 III offers a higher resolution than the X100S (16MP), but the A7 III nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.80μm for the X100S) due to its larger sensor. Moreover, the A7 III is a much more recent model (by 5 years and 1 month) than the X100S, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the X100S has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 III 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 Fujifilm X100S are 24.5 x 16.3 inches or 62.2 x 41.5 cm for good quality, 19.6 x 13.1 inches or 49.7 x 33.2 cm for very good quality, and 16.3 x 10.9 inches or 41.5 x 27.6 cm for excellent quality prints.

The Fujifilm X100S 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 Alpha A7 III are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the X100S is build around a CMOS sensor, while the A7 III uses a BSI-CMOS imager. The X100S uses Fujifilm's X-Trans layout of photosites, while the A7 III employs the more common Bayer array.

X100S versus A7 III MP

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.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Fujifilm X100S APS-C 16.0 4896 32641080/60p23.312.5132975
2.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
3.
 
Canon G1 X 1.5-inch 14.2 4352 32641080/24p21.710.864460
4.
 
Fujifilm X100F APS-C 24.0 6000 40001080/60p23.913.2170481
5.
 
Fujifilm X-T10 APS-C 16.0 4896 32641080/60p23.712.9154679
6.
 
Fujifilm X30 2/3 12.0 4000 30001080/60p20.411.2-31249
7.
 
Fujifilm X100T APS-C 16.0 4896 32641080/60p23.612.8148378
8.
 
Fujifilm X-T1 APS-C 16.0 4896 32641080/60p23.512.7142677
9.
 
Fujifilm X-Pro1 APS-C 16.0 4896 32641080/24p23.112.3123874
10.
 
Fujifilm X100 APS-C 12.2 4288 2848720/30p22.912.4100173
11.
 
Leica X Typ 113 APS-C 16.1 4928 32641080/30p23.612.8149178
12.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
13.
 
Nikon Coolpix A APS-C 16.1 4928 32641080/30p23.413.8116480
14.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
15.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
17.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
Note: DXO values in italics represent estimates based on sensor size and age.
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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 A7 III provides a better video resolution than the X100S. It can shoot movie footage at 4K/30p, while the Fujifilm is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the X100S offers a slightly higher resolution than the one in the A7 III (2360k vs 2359k dots). The following table reports on some other key feature differences and similarities of the Fujifilm X100S, the Sony A7 III, and comparable cameras.

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Core Features
# image 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 X100S2360 n2.8 / 460 fixed n 1/4000s 6.0/s Y n
2.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
3.
 
Canon G1 Xoptical n3.0 / 922 swivel n 1/4000s 1.9/s Y Y
4.
 
Fujifilm X100F2360 n3.0 / 1040 fixed n 1/4000s 8.0/s Y n
5.
 
Fujifilm X-T102360 n3.0 / 920 tilting n 1/4000s 8.0/s Y n
6.
 
Fujifilm X302360 n3.0 / 920 tilting n 1/4000s 12.0/s Y Y
7.
 
Fujifilm X100T2360 n3.0 / 1040 fixed n 1/4000s 6.0/s Y n
8.
 
Fujifilm X-T12360 n3.0 / 1040 tilting n 1/4000s 8.0/s n n
9.
 
Fujifilm X-Pro11440 n3.0 / 1230 fixed n 1/4000s 6.0/s n n
10.
 
Fujifilm X1001440 n2.8 / 460 fixed n 1/4000s 5.0/s Y n
11.
 
Leica X Typ 113optional n3.0 / 920 fixed n 1/2000s 5.0/s Y n
12.
 
Nikon Z63690 Y3.2 / 2100 tilting Y 1/8000s 12.0/s n Y
13.
 
Nikon Coolpix Aoptional n3.0 / 921 fixed n 1/2000s 4.0/s Y n
14.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
17.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The X100S has one, while the A7 III does not. While the built-in flash of the X100S 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 A7 III 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 Sony A7 III 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 X100S writes its imaging data to SDXC cards, while the A7 III uses SDXC or Memory Stick PRO Duo cards. The A7 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the X100S only has one slot. The A7 III supports UHS-II cards (on its first slot), while the X100S can use UHS-I cards.

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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 X100S and Sony Alpha A7 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Fujifilm X100SYstereo / mono--micro2.0---
2.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
3.
 
Canon G1 XYstereo / mono--mini2.0---
4.
 
Fujifilm X100FYstereo / monoY-micro2.0Y--
5.
 
Fujifilm X-T10Ystereo / monoY-micro2.0Y--
6.
 
Fujifilm X30Ystereo / mono--micro2.0Y--
7.
 
Fujifilm X100TYstereo / monoY-micro2.0Y--
8.
 
Fujifilm X-T1Ystereo / monoY-mini2.0Y--
9.
 
Fujifilm X-Pro1Ystereo / mono--mini2.0---
10.
 
Fujifilm X100Ystereo / ---mini2.0---
11.
 
Leica X Typ 113Ystereo / mono--mini2.0---
12.
 
Nikon Z6Ystereo / monoYYmicro3.1Y-Y
13.
 
Nikon Coolpix AYstereo / mono---2.0---
14.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
15.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
16.
 
Sony A9Ystereo / monoYYmicro2.0YYY
17.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
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It is notable that the A7 III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the X100S does not provide wifi capability.

The A7 III is a recent model that features in the current product line-up of Sony. In contrast, the X100S has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the X100S was succeeded by the Fujifilm X100T. Further information on the features and operation of the X100S and A7 III can be found, respectively, in the Fujifilm X100S Manual (free pdf) or the online Sony A7 III Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Fujifilm X100S or the Sony A7 III – 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.

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Arguments in favor of the Fujifilm X100S:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Ready to shoot: Has a lens built-in, whereas the A7 III requires a separate lens.
  • More compact: Is smaller (127x74mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7 III).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been available for much longer (launched in January 2013).

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Reasons to prefer the Sony Alpha A7 III:

  • More detail: Has more megapixels (24 vs 16MP), which boosts linear resolution by 23%.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • 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 video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.43x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (922k vs 460k dots).
  • 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.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 6 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 flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (610 versus 330) 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.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 5 years and 1 month of technical progress since the X100S launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7 III is the clear winner of the contest (30 : 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.

X100S 07:30 A7 III

How about other alternatives? Do the specifications of the Fujifilm X100S and the Sony A7 III place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best Mirrorless Interchangeable Lens 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 remains incomplete and does no justice, for example, to the way the X100S or the A7 III 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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Fujifilm X100S5/5+ +..81/1004.5/55/5 Jan 2013 1,299ebay.com
2.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
3.
 
Canon G1 X5/5+..76/1004/54.5/5 Jan 2012 799ebay.com
4.
 
Fujifilm X100F5/5+3.9/583/1004.5/54.5/5 Jan 2017 1,299ebay.com
5.
 
Fujifilm X-T104.5/5+ +..80/1005/55/5 May 2015 799ebay.com
6.
 
Fujifilm X304/5....76/1004.5/54.5/5 Aug 2014 599ebay.com
7.
 
Fujifilm X100T5/5+..81/1004.5/55/5 Sep 2014 1,299ebay.com
8.
 
Fujifilm X-T15/5+ +..84/1005/55/5 Jan 2014 1,299ebay.com
9.
 
Fujifilm X-Pro15/5+ +..79/1004.5/54.5/5 Jan 2012 1,699ebay.com
10.
 
Fujifilm X1003/5....75/1004/55/5 Sep 2010 1,199ebay.com
11.
 
Leica X Typ 1133.5/5......3.5/54/5 Sep 2014 2,295ebay.com
12.
 
Nikon Z65/5..5/589/1004.5/55/5 Aug 2018 1,999ebay.com
13.
 
Nikon Coolpix A4/5+..75/1004/54/5 Mar 2013 1,099ebay.com
14.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
15.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
16.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
17.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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 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.

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Check A7 III price at
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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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    Specifications: Fujifilm X100S vs Sony A7 III

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Fujifilm X100S Sony A7 III
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 35mm f/2.0 Sony E mount lenses
    Launch Date January 2013 February 2018
    Launch Price USD 1,299 USD 1,999
    Sensor Specs Fujifilm X100S Sony A7 III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.6 x 15.6 mm 35.6 x 23.8 mm
    Sensor Area 368.16 mm2 847.28 mm2
    Sensor Diagonal 28.3 mm 42.8 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 16 Megapixels 24 Megapixels
    Image Resolution 4896 x 3264 pixels 6000 x 4000 pixels
    Pixel Pitch 4.80 μm 5.94 μm
    Pixel Density 4.34 MP/cm2 2.83 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 200 - 6,400 ISO 100 - 51,200 ISO
    ISO Boost 100 - 25,600 ISO 50 - 204,800 ISO
    Image Processor EXR Processor II BIONZ X
    DXO Sensor Quality (score) .. 96
    DXO Color Depth (bits) .. 25.0
    DXO Dynamic Range (EV) .. 14.7
    DXO Low Light (ISO) .. 3730
    Screen Specs Fujifilm X100S Sony A7 III
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.43x 0.78x
    Viewfinder Resolution 2360k dots 2359k dots
    LCD Framing Live View Live View
    Rear LCD Size 2.8inch 3.0inch
    LCD Resolution 460k dots 922k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Fujifilm X100S Sony A7 III
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 6 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image Stabilizationno shake reductionIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Single UHS-II
    Connectivity Specs Fujifilm X100S Sony A7 III
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 3.1
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Fujifilm X100S Sony A7 III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Fujifilm NP-95 Sony NP-FZ100
    Battery Life (CIPA)330 shots per charge610 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 127 x 74 x 54 mm
    (5.0 x 2.9 x 2.1 in)
    127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    Camera Weight 445 g (15.7 oz) 650 g (22.9 oz)
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