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Fujifilm X-A1 vs Panasonic S1

The Fujifilm X-A1 and the Panasonic Lumix DC-S1 are two digital cameras that were announced, respectively, in September 2013 and February 2019. Both the X-A1 and the S1 are mirrorless interchangeable lens cameras that are based on an APS-C (X-A1) and a full frame (S1) sensor. The Fujifilm has a resolution of 16 megapixels, whereas the Panasonic 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-A1
versus
Panasonic S1
Fujifilm X-A1   Panasonic S1
Mirrorless system camera Mirrorless system camera
Fujifilm X mount lenses Leica L mount lenses
16 MP – APS-C sensor 24 MP – Full Frame sensor
1080/30p Video 4K/60p Video
ISO 200-6,400 (100 - 25,600) ISO 100-51,200 (50 - 204,800)
No viewfinder, LCD framing Electronic viewfinder (5760k dots)
3.0" LCD – 920k dots 3.2" LCD – 2100k dots
Tilting screen (no touchscreen) Fully flexible touchscreen
5.6 shutter flaps per second 9 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
350 shots per battery charge400 shots per battery charge
117 x 67 x 39 mm, 330 g 149 x 110 x 97 mm, 1017 g
logo
Check X-A1 offers at
ebay.com
logo
Check S1 price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-A1 and the Panasonic Lumix DC-S1? 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 X-A1 and the Panasonic S1 are illustrated in the side-by-side display below. 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-A1 can be obtained in two different colors (black, blue), while the S1 is only available in black.

Size Fujifilm X-A1 vs Panasonic S1
Compare X-A1 versus S1 top
Comparison X-A1 or S1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic S1 is considerably larger (109 percent) than the Fujifilm X-A1. Moreover, the S1 is substantially heavier (208 percent) than the X-A1. It is noteworthy in this context that the S1 is splash and dust-proof, while the X-A1 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the X-A1 gets 350 shots out of its Fujifilm NP-W126 battery, while the S1 can take 400 images on a single charge of its Panasonic DMW-BLJ31 power pack. The power pack in the S1 can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.

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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 X-A1 117 mm 67 mm 39 mm 330 g 350 n Sep 2013 399ebay.com
2.
 
Panasonic S1 149 mm 110 mm 97 mm 1017 g 400 Y Feb 2019 2,499 amazon.com
3.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 2,499 amazon.com
4.
 
Fujifilm X-A5 117 mm 68 mm 40 mm 361 g 450 n Jan 2018 399ebay.com
5.
 
Fujifilm X-A3 117 mm 67 mm 40 mm 339 g 410 n Aug 2016 399ebay.com
6.
 
Fujifilm X-A10 117 mm 67 mm 40 mm 331 g 410 n Dec 2016 399ebay.com
7.
 
Fujifilm X-E2S 129 mm 75 mm 37 mm 350 g 350 n Jan 2016 699ebay.com
8.
 
Fujifilm X-A2 117 mm 67 mm 40 mm 350 g 410 n Jan 2015 399ebay.com
9.
 
Fujifilm X-T10 118 mm 83 mm 41 mm 381 g 350 n May 2015 799ebay.com
10.
 
Fujifilm X-E2 129 mm 75 mm 37 mm 350 g 350 n Oct 2013 999ebay.com
11.
 
Fujifilm X-M1 117 mm 67 mm 39 mm 330 g 350 n Jun 2013 699ebay.com
12.
 
Fujifilm X-E1 129 mm 75 mm 38 mm 350 g 350 n Sep 2012 999ebay.com
13.
 
Fujifilm X-Pro1 140 mm 82 mm 43 mm 450 g 300 n Jan 2012 1,699ebay.com
14.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 1,999 amazon.com
15.
 
Panasonic S1R 149 mm 110 mm 97 mm 1016 g 380 Y Feb 2019 3,699 amazon.com
16.
 
Panasonic S1H 151 mm 114 mm 110 mm 1052 g 400 Y May 2019 3,999 amazon.com
17.
 
Sony A900 156 mm 117 mm 82 mm 895 g 880 Y Sep 2008 2,999ebay.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 X-A1 was launched at a markedly lower price (by 84 percent) than the S1, 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.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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 X-A1 features an APS-C sensor and the Panasonic S1 a full frame sensor. The sensor area in the S1 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 X-A1 and Panasonic S1 sensor measures

With 24MP, the S1 offers a higher resolution than the X-A1 (16MP), but the S1 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.80μm for the X-A1) due to its larger sensor. Moreover, the S1 is a much more recent model (by 5 years and 4 months) than the X-A1, 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 S1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Panasonic S1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the S1 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 X-A1 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.

Unlike the X-A1, the S1 has the capacity to capture high quality composite images (96MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Fujifilm X-A1 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 Panasonic Lumix DC-S1 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

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.

X-A1 versus S1 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 X-A1 APS-C 16.0 4896 32641080/30p23.412.6139076
2.
 
Panasonic S1 Full Frame 24.0 6000 40004K/60p25.214.5333395
3.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
4.
 
Fujifilm X-A5 APS-C 24.0 6000 40004K/15p24.013.3180082
5.
 
Fujifilm X-A3 APS-C 24.0 6000 40001080/60p23.813.1166481
6.
 
Fujifilm X-A10 APS-C 16.0 4896 32641080/30p23.913.2169181
7.
 
Fujifilm X-E2S APS-C 16.0 4896 32641080/60p23.713.0160880
8.
 
Fujifilm X-A2 APS-C 16.0 4896 32641080/30p23.612.8151579
9.
 
Fujifilm X-T10 APS-C 16.0 4896 32641080/60p23.712.9154679
10.
 
Fujifilm X-E2 APS-C 16.0 4896 32641080/60p23.412.6140077
11.
 
Fujifilm X-M1 APS-C 16.0 4896 32641080/30p23.412.6137176
12.
 
Fujifilm X-E1 APS-C 16.0 4896 32641080/24p23.212.4129875
13.
 
Fujifilm X-Pro1 APS-C 16.0 4896 32641080/24p23.112.3123874
14.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p25.114.5269794
15.
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525100
16.
 
Panasonic S1H Full Frame 24.0 6000 40006K/30p25.214.2280594
17.
 
Sony A900 Full Frame 24.4 6048 4032none23.712.3143179
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the S1 provides a better video resolution than the X-A1. It can shoot movie footage at 4K/60p, while the Fujifilm is limited to 1080/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the S1 has an electronic viewfinder (5760k dots), which can be very helpful when shooting in bright sunlight. In contrast, the X-A1 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Fujifilm X-A1 and Panasonic S1 along with similar information for a selection of comparators.

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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 X-A1none n3.0 / 920 tilting n 1/4000s 5.6/s Y n
2.
 
Panasonic S15760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
3.
 
Canon R63690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
4.
 
Fujifilm X-A5none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
5.
 
Fujifilm X-A3none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
6.
 
Fujifilm X-A10none n3.0 / 1040 tilting n 1/4000s 6.0/s Y n
7.
 
Fujifilm X-E2S2360 n3.0 / 1040 fixed n 1/4000s 7.0/s Y n
8.
 
Fujifilm X-A2none n3.0 / 920 tilting n 1/4000s 5.6/s Y n
9.
 
Fujifilm X-T102360 n3.0 / 920 tilting n 1/4000s 8.0/s Y n
10.
 
Fujifilm X-E22360 n3.0 / 1040 fixed n 1/4000s 7.0/s Y n
11.
 
Fujifilm X-M1none n3.0 / 920 tilting n 1/4000s 5.6/s Y n
12.
 
Fujifilm X-E12360 n2.8 / 460 fixed n 1/4000s 6.0/s Y n
13.
 
Fujifilm X-Pro11440 n3.0 / 1230 fixed n 1/4000s 6.0/s n n
14.
 
Panasonic S52360 n3.0 / 1840 swivel Y 1/8000s 7.0/s n Y
15.
 
Panasonic S1R5760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
16.
 
Panasonic S1H5760 Y3.2 / 2330 swivel Y 1/8000s 9.0/s n Y
17.
 
Sony A900optical Y3.0 / 922 fixed n 1/8000s 5.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
padding

One difference between the cameras concerns the presence of an on-board flash. The X-A1 has one, while the S1 does not. While the built-in flash of the X-A1 is not very powerful, it can at times be useful as a fill-in light.

The X-A1 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the S1 does not have a selfie-screen.

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 S1 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 Panasonic S1 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-A1 writes its imaging data to SDHC cards, while the S1 uses SDXC or XQD cards. The S1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the X-A1 only has one slot. The S1 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the X-A1 can use UHS-I cards (up to 104 MB/s).

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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 X-A1 and Panasonic Lumix DC-S1 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 X-A1Ystereo / mono--mini2.0Y--
2.
 
Panasonic S1Ystereo / monoYYfull3.1Y-Y
3.
 
Canon R6Ymono / monoYYmicro3.2Y-Y
4.
 
Fujifilm X-A5Ystereo / monoY-micro2.0Y-Y
5.
 
Fujifilm X-A3Ystereo / mono--micro2.0Y--
6.
 
Fujifilm X-A10-stereo / mono--micro2.0Y--
7.
 
Fujifilm X-E2SYstereo / monoY-micro2.0Y--
8.
 
Fujifilm X-A2Ystereo / mono--mini2.0Y--
9.
 
Fujifilm X-T10Ystereo / monoY-micro2.0Y--
10.
 
Fujifilm X-E2Ystereo / monoY-micro2.0Y--
11.
 
Fujifilm X-M1Ystereo / mono--mini2.0Y--
12.
 
Fujifilm X-E1Ystereo / monoY-mini2.0---
13.
 
Fujifilm X-Pro1Ystereo / mono--mini2.0---
14.
 
Panasonic S5Ystereo / monoYYmicro3.2Y-Y
15.
 
Panasonic S1RYstereo / monoYYfull3.1Y-Y
16.
 
Panasonic S1HYstereo / monoYYfull3.1Y-Y
17.
 
Sony A900Y- / ---mini2.0---
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It is notable that the S1 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The X-A1 lacks such a headphone port.

Studio photographers will appreciate that the Panasonic S1 (unlike the X-A1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The S1 is a recent model that features in the current product line-up of Panasonic. In contrast, the X-A1 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the X-A1 was succeeded by the Fujifilm X-A2. Further information on the features and operation of the X-A1 and S1 can be found, respectively, in the Fujifilm X-A1 Manual (free pdf) or the online Panasonic S1 Manual.

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Review summary

So what conclusions can be drawn? Is the Fujifilm X-A1 better than the Panasonic S1 or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Fujifilm X-A1:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • More compact: Is smaller (117x67mm vs 149x110mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 687g or 68 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (84 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in September 2013).

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Arguments in favor of the Panasonic Lumix DC-S1:

  • More detail: Has more megapixels (24 vs 16MP), which boosts linear resolution by 23%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • 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/60p vs 1080/30p).
  • 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.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 920k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or 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 (9 vs 5.6 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.
  • Longer lasting: Gets more shots (400 versus 350) 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).
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • 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 4 months of technical progress since the X-A1 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the S1 is the clear winner of the contest (31 : 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 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.

X-A1 07:31 S1

How about other alternatives? Do the specifications of the Fujifilm X-A1 and the Panasonic S1 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the X-A1 or the S1 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 why expert reviews 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.

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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 X-A1........4.5/54.5/5 Sep 2013 399ebay.com
2.
 
Panasonic S14.5/5+ +4.5/588/1004.5/54/5 Feb 2019 2,499 amazon.com
3.
 
Canon R65/5+ +4/590/1004.5/55/5 Jul 2020 2,499 amazon.com
4.
 
Fujifilm X-A5..+4.1/5..4/53.5/5 Jan 2018 399ebay.com
5.
 
Fujifilm X-A3......74/1004.5/54/5 Aug 2016 399ebay.com
6.
 
Fujifilm X-A10........4/54/5 Dec 2016 399ebay.com
7.
 
Fujifilm X-E2S4.5/5....77/1004.5/54.5/5 Jan 2016 699ebay.com
8.
 
Fujifilm X-A24/5......4.5/54.5/5 Jan 2015 399ebay.com
9.
 
Fujifilm X-T104.5/5+ +..80/1005/55/5 May 2015 799ebay.com
10.
 
Fujifilm X-E24/5....80/1004.5/55/5 Oct 2013 999ebay.com
11.
 
Fujifilm X-M13/5+..77/1004.5/54.5/5 Jun 2013 699ebay.com
12.
 
Fujifilm X-E14/5+ +..79/1004.5/54.5/5 Sep 2012 999ebay.com
13.
 
Fujifilm X-Pro15/5+ +..79/1004.5/54.5/5 Jan 2012 1,699ebay.com
14.
 
Panasonic S54.5/5+ +4.5/588/1004.5/54.5/5 Sep 2020 1,999 amazon.com
15.
 
Panasonic S1R4.5/5..4.6/589/1004.5/54.5/5 Feb 2019 3,699 amazon.com
16.
 
Panasonic S1H....4/590/100.... May 2019 3,999 amazon.com
17.
 
Sony A900..+ +..+ +4.5/55/5 Sep 2008 2,999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time 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. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Check X-A1 offers at
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Check S1 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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Fujifilm X-A1 vs Panasonic S1

    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 X-A1 Panasonic S1
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Fujifilm X mount lenses Leica L mount lenses
    Launch Date September 2013 February 2019
    Launch Price USD 399 USD 2,499
    Sensor Specs Fujifilm X-A1 Panasonic S1
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.5 x 15.7 mm 35.6 x 23.8 mm
    Sensor Area 368.95 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 4.33 MP/cm2 2.83 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/30p Video 4K/60p 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 Venus
    DXO Sensor Quality (score) .. 95
    DXO Color Depth (bits) .. 25.2
    DXO Dynamic Range (EV) .. 14.5
    DXO Low Light (ISO) .. 3333
    Screen Specs Fujifilm X-A1 Panasonic S1
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 5760k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 920k dots 2100k dots
    LCD Attachment Tilting screen Fully flexible screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Fujifilm X-A1 Panasonic S1
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 5.6 shutter flaps/s 9 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/8000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDHC cards SDXC or XQD cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-II
    Connectivity Specs Fujifilm X-A1 Panasonic S1
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port mini HDMI full HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Fujifilm X-A1 Panasonic S1
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Fujifilm NP-W126 Panasonic DMW-BLJ31
    Battery Life (CIPA)350 shots per charge400 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 117 x 67 x 39 mm
    (4.6 x 2.6 x 1.5 in)
    149 x 110 x 97 mm
    (5.9 x 4.3 x 3.8 in)
    Camera Weight 330 g (11.6 oz) 1017 g (35.9 oz)
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