Fujifilm X-S10 vs Sony A5100
The Fujifilm X-S10 and the Sony Alpha A5100 are two digital cameras that were officially introduced, respectively, in October 2020 and August 2014. Both the X-S10 and the A5100 are mirrorless interchangeable lens cameras that are equipped with an APS-C 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-S10 and the Sony Alpha A5100? 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.
The side-by-side display below illustrates the physical size and weight of the Fujifilm X-S10 and the Sony A5100. 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 A5100 can be obtained in two different colors (black, white), while the X-S10 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A5100 is considerably smaller (35 percent) than the Fujifilm X-S10. Moreover, the A5100 is substantially lighter (39 percent) than the X-S10. In this context, it is worth noting that neither the X-S10 nor the A5100 are weather-sealed.
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. Yet, since both cameras are based around an APS-C sensor, their respective lenses will tend to have similar dimensions and heft. You can compare the optics available for the two cameras in the Fujinon X Lens Catalog (X-S10) and the Sony E-Mount Lens Catalog (A5100). 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-S10 gets 325 shots out of its NP-W126S battery, while the A5100 can take 400 images on a single charge of its 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.
|1.||Fujifilm X-S10||126 mm||85 mm||65 mm||465 g||325||n||Oct 2020||999|
|2.||Sony A5100||110 mm||63 mm||36 mm||283 g||400||n||Aug 2014||549|
|3.||Fujifilm X-E4||121 mm||73 mm||33 mm||364 g||380||n||Jan 2021||849|
|4.||Fujifilm X-T200||121 mm||84 mm||55 mm||370 g||270||n||Jan 2020||699|
|5.||Fujifilm X-Pro3||141 mm||83 mm||46 mm||497 g||440||Y||Oct 2019||1,799|
|6.||Fujifilm X-T30||118 mm||83 mm||47 mm||383 g||380||n||Feb 2019||899|
|7.||Fujifilm X-A7||119 mm||68 mm||41 mm||320 g||440||n||Sep 2019||499|
|8.||Fujifilm X-T100||121 mm||83 mm||47 mm||448 g||430||n||May 2018||599|
|9.||Fujifilm X-E3||121 mm||74 mm||43 mm||337 g||350||n||Sep 2017||899|
|10.||Fujifilm X-T20||118 mm||83 mm||41 mm||383 g||350||n||Jan 2017||899|
|11.||Ricoh GR III||109 mm||62 mm||33 mm||257 g||200||n||Feb 2019||899|
|12.||Sony A6400||120 mm||67 mm||50 mm||403 g||410||Y||Jan 2019||899|
|13.||Sony A5000||110 mm||63 mm||36 mm||269 g||420||n||Jan 2014||449|
|14.||Sony A6000||120 mm||67 mm||45 mm||344 g||360||n||Feb 2014||599|
|15.||Sony A3000||128 mm||91 mm||85 mm||411 g||470||n||Aug 2013||329|
|16.||Sony NEX-3N||110 mm||62 mm||35 mm||269 g||480||n||Feb 2013||499|
|17.||Sony NEX-3||117 mm||62 mm||33 mm||297 g||330||n||May 2010||599|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The A5100 was launched at a markedly lower price (by 45 percent) than the X-S10, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
The size of the sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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.
Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.5. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
While the two cameras under review share the same sensor size, the X-S10 offers a slightly higher resolution of 26 megapixels, compared with 24 MP of the A5100. This megapixels advantage translates into a 4 percent gain in linear resolution. On the other hand, these sensor specs imply that the X-S10 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 3.91μm for the A5100). In this context, it should be noted, however, that the X-S10 is much more recent (by 6 years and 1 month) than the A5100, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the X-S10 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
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 Alpha A5100 are ISO 100 to ISO 25600 (no boost).
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|11.||Ricoh GR III||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the X-S10 provides a higher video resolution than the A5100. It can shoot video footage at 4K/30p, while the Sony is limited to 1080/60p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the X-S10 has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the A5100 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Fujifilm X-S10, the Sony A5100, and comparable cameras.
|11.||Ricoh GR III||optional||n||3.0||1037||fixed||Y||1/4000s||4.0||n||Y|
One feature that differentiates the X-S10 and the A5100 is in-body image stabilization (IBIS). The X-S10 reduces the risk of handshake-induced blur with all attached lenses, while the A5100 offers no blur reduction with lenses that themselves do not provide optical image stabilization.Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.
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-S10 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-S10 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-S10 writes its imaging data to SDXC cards, while the A5100 uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 Alpha A5100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|11.||Ricoh GR III||Y||stereo||mono||-||-||-||3.0||Y||-||Y|
It is notable that the X-S10 has a hotshoe, while the A5100 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the X-S10 and the A5100 are recent models that are part of the current product line-up. The A5100 replaced the earlier Sony A5000, 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.
So how do things add up? Is the Fujifilm X-S10 better than the Sony A5100 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Fujifilm X-S10:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- 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.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster burst: Shoots at higher frequency (8 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.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More modern: Reflects 6 years and 1 month of technical progress since the A5100 launch.
Reasons to prefer the Sony Alpha A5100:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More compact: Is smaller (110x63mm vs 126x85mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 182g or 39 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (400 versus 325) out of a single battery charge.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More affordable: Was introduced into a lower priced category (45 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in August 2014).
If the count of relative strengths (bullet points above) is taken as a measure, the X-S10 is the clear winner of the match-up (14 : 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Fujifilm X-S10 and the Sony A5100 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the X-S10 or the A5100. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], 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.
|1.||Fujifilm X-S10||5/5||..||86/100||4.5/5||4.5/5||Oct 2020||999|
|2.||Sony A5100||4.5/5||+||..||4.5/5||5/5||Aug 2014||549|
|3.||Fujifilm X-E4||4/5||..||..||..||..||Jan 2021||849|
|4.||Fujifilm X-T200||3.5/5||..||82/100||4/5||4.5/5||Jan 2020||699|
|5.||Fujifilm X-Pro3||4/5||+||85/100||4/5||..||Oct 2019||1,799|
|6.||Fujifilm X-T30||5/5||+ +||84/100||4.5/5||4.5/5||Feb 2019||899|
|7.||Fujifilm X-A7||3/5||..||81/100||4/5||3.5/5||Sep 2019||499|
|8.||Fujifilm X-T100||4/5||+||79/100||4/5||4.5/5||May 2018||599|
|9.||Fujifilm X-E3||4.5/5||+||84/100||4.5/5||4.5/5||Sep 2017||899|
|10.||Fujifilm X-T20||5/5||+ +||82/100||5/5||4.5/5||Jan 2017||899|
|11.||Ricoh GR III||4/5||..||81/100||4/5||..||Feb 2019||899|
|12.||Sony A6400||4/5||+||85/100||4.5/5||4/5||Jan 2019||899|
|13.||Sony A5000||3/5||+||..||4.5/5||4.5/5||Jan 2014||449|
|14.||Sony A6000||5/5||+||80/100||4.5/5||5/5||Feb 2014||599|
|15.||Sony A3000||3/5||+||..||4/5||4/5||Aug 2013||329|
|16.||Sony NEX-3N||3/5||..||..||4.5/5||4.5/5||Feb 2013||499|
|17.||Sony NEX-3||..||..||70/100||4.5/5||4/5||May 2010||599|
|Notes: (+ +) 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. 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.
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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Fujifilm X-S10 vs Sony A5100
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 Model||Fujifilm X-S10||Sony A5100|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Fujifilm X mount lenses||Sony E mount lenses|
|Launch Date||October 2020||August 2014|
|Launch Price||USD 999||USD 549|
|Sensor Specs||Fujifilm X-S10||Sony A5100|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||23.5 x 15.6 mm||23.5 x 15.6 mm|
|Sensor Area||366.6 mm2||366.6 mm2|
|Sensor Diagonal||28.2 mm||28.2 mm|
|Sensor Resolution||26 Megapixels||24 Megapixels|
|Image Resolution||6240 x 4160 pixels||6000 x 4000 pixels|
|Pixel Pitch||3.76 μm||3.91 μm|
|Pixel Density||7.08 MP/cm2||6.55 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||1080/60p Video|
|ISO Setting||160 - 12,800 ISO||100 - 25,600 ISO|
|ISO Boost||80 - 51,200 ISO||no Enhancement|
|Image Processor||X-Processor 4||BIONZ X|
|DXO Sensor Quality (score)||..||80|
|DXO Color Depth (bits)||..||23.8|
|DXO Dynamic Range (EV)||..||12.7|
|DXO Low Light (ISO)||..||1347|
|Screen Specs||Fujifilm X-S10||Sony A5100|
|Viewfinder Type||Electronic viewfinder||no viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||922k dots|
|LCD Attachment||Swivel screen||Tilting screen|
|Shooting Specs||Fujifilm X-S10||Sony A5100|
|Focus System||On-Sensor Phase-detect||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||8 shutter flaps/s||6 shutter flaps/s|
|Electronic Shutter||up to 1/32000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||In-body stabilization||Lens stabilization only|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Fujifilm X-S10||Sony A5100|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 3.2||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Fujifilm X-S10||Sony A5100|
|Battery Life (CIPA)||325 shots per charge||400 shots per charge|
|In-Camera Charging||USB charging||USB charging|
126 x 85 x 65 mm
(5.0 x 3.3 x 2.6 in)
110 x 63 x 36 mm
(4.3 x 2.5 x 1.4 in)
|Camera Weight||465 g (16.4 oz)||283 g (10.0 oz)|
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