Fujifilm X100S vs Olympus E-M5 III
The Fujifilm X100S and the Olympus OM-D E-M5 Mark III are two enthusiast cameras that were officially introduced, respectively, in January 2013 and October 2019. The X100S is a fixed lens compact, while the E-M5 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (X100S) and a Four Thirds (E-M5 III) sensor. The Fujifilm has a resolution of 16 megapixels, whereas the Olympus provides 20.2 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 X100S and the Olympus OM-D E-M5 Mark 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.
The physical size and weight of the Fujifilm X100S and the Olympus E-M5 III 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 dimensions are rounded to the nearest millimeter.
Both cameras are available in two different colors (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M5 III is notably larger (13 percent) than the Fujifilm X100S. It is noteworthy in this context that the E-M5 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 E-M5 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 E-M5 III and their specifications in the Micro Four Thirds Lens Catalog.
Concerning battery life, the X100S gets 330 shots out of its NP-95 battery, while the E-M5 III can take 310 images on a single charge of its BLS-50 power pack. The power pack in the E-M5 III can be charged via the USB port, 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 X100S||127 mm||74 mm||54 mm||445 g||330||n||Jan 2013||1,299|
|2.||Olympus E-M5 III||125 mm||85 mm||50 mm||414 g||310||Y||Oct 2019||1,199|
|3.||Canon G1 X||117 mm||81 mm||65 mm||534 g||250||n||Jan 2012||799|
|4.||Fujifilm X100F||127 mm||75 mm||52 mm||469 g||390||n||Jan 2017||1,299|
|5.||Fujifilm X30||119 mm||72 mm||60 mm||423 g||470||n||Aug 2014||599|
|6.||Fujifilm X100T||127 mm||74 mm||52 mm||440 g||330||n||Sep 2014||1,299|
|7.||Fujifilm X-Pro1||140 mm||82 mm||43 mm||450 g||300||n||Jan 2012||1,699|
|8.||Fujifilm X100||126 mm||75 mm||54 mm||445 g||300||n||Sep 2010||1,199|
|9.||Leica D-LUX 7||115 mm||66 mm||65 mm||392 g||300||n||Nov 2018||1,195|
|10.||Leica D-LUX Typ 109||118 mm||66 mm||55 mm||405 g||300||n||Sep 2014||1,195|
|11.||Leica X Typ 113||133 mm||73 mm||78 mm||486 g||350||n||Sep 2014||2,295|
|12.||Nikon Coolpix A||111 mm||64 mm||40 mm||299 g||230||n||Mar 2013||1,099|
|13.||Olympus PEN-F||125 mm||72 mm||37 mm||427 g||330||n||Jan 2016||1,199|
|14.||Olympus E-M5 II||124 mm||85 mm||45 mm||469 g||310||Y||Feb 2015||1,099|
|15.||Olympus E-M1||130 mm||94 mm||63 mm||497 g||350||Y||Sep 2013||1,399|
|16.||Olympus E-M5||122 mm||89 mm||43 mm||425 g||360||Y||Feb 2012||1,299|
|17.||Panasonic GX8||133 mm||78 mm||63 mm||487 g||330||Y||Jul 2015||1,199|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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. 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.
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 X100S features an APS-C sensor and the Olympus E-M5 III a Four Thirds sensor. The sensor area in the E-M5 III is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the X100S has a native 3:2 aspect ratio, while the one in the E-M5 III offers a 4:3 aspect.
In terms of underlying technology, both cameras are build around CMOS sensors.
Despite having a smaller sensor, the E-M5 III offers a higher resolution of 20.2 megapixels, compared with 16 MP of the X100S. 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 3.34μm versus 4.80μm for the X100S). However, it should be noted that the E-M5 III is much more recent (by 6 years and 9 months) than the X100S, 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The resolution advantage of the Olympus E-M5 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M5 III for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 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.
Unlike the X100S, the E-M5 III has the capacity to capture high quality composite images (80MP) 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 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 Olympus OM-D E-M5 Mark III are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 64-25600.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|2.||Olympus E-M5 III||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|3.||Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60|
|9.||Leica D-LUX 7||Four Thirds||16.8||4736||3552||4K/30p||..||..||..||..|
|10.||Leica D-LUX Typ 109||Four Thirds||12.7||4112||3088||4K/30p||..||..||..||..|
|11.||Leica X Typ 113||APS-C||16.1||4928||3264||1080/30p||..||..||..||..|
|12.||Nikon Coolpix A||APS-C||16.1||4928||3264||1080/30p||23.4||13.8||1164||80|
|13.||Olympus PEN-F||Four Thirds||20.2||5184||3888||1080/60p||23.1||12.4||894||74|
|14.||Olympus E-M5 II||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73|
|15.||Olympus E-M1||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73|
|16.||Olympus E-M5||Four Thirds||15.9||4608||3456||1080/60i||22.8||12.3||826||71|
|17.||Panasonic GX8||Four Thirds||20.2||5184||3888||4K/30p||23.5||12.6||806||75|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the E-M5 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.
Beyond body and sensor, cameras can and do differ across a range of features. The X100S and the E-M5 III are similar in the sense that both feature an electronic viewfinder, which is helpful when framing images in bright sunlight. Moreover, their viewfinders offer an identical resolution of 2360k dots. The adjacent table lists some of the other core features of the Fujifilm X100S and Olympus E-M5 III along with similar information for a selection of comparators.
|2.||Olympus E-M5 III||2360||n||3.0||1040||swivel||Y||1/8000s||10.0||n||Y|
|3.||Canon G1 X||optical||n||3.0||922||Swivel||n||1/4000s||1.9||Y||Y|
|9.||Leica D-LUX 7||2764||n||3.0||1240||fixed||Y||1/4000s||11.0||n||Y|
|10.||Leica D-LUX Typ 109||2764||n||3.0||921||fixed||n||1/4000s||11.0||n||Y|
|11.||Leica X Typ 113||optional||n||3.0||920||fixed||n||1/2000s||5.0||Y||n|
|12.||Nikon Coolpix A||optional||n||3.0||921||fixed||n||1/2000s||4.0||Y||n|
|14.||Olympus E-M5 II||2360||n||3.0||1037||swivel||Y||1/8000s||10.0||n||Y|
One difference between the cameras concerns the presence of an on-board flash. The X100S has one, while the E-M5 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 E-M5 III has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the X100S 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 E-M5 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 Olympus E-M5 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.
Concerning the storage of imaging data, both the X100S and the E-M5 III write their files to SDXC cards. The E-M5 III supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the X100S can use UHS-I cards (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 X100S and Olympus OM-D E-M5 Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|2.||Olympus E-M5 III||Y||stereo||mono||Y||-||micro||2.0||Y||-||Y|
|3.||Canon G1 X||Y||stereo||mono||-||-||mini||2.0||-||-||-|
|9.||Leica D-LUX 7||Y||stereo||mono||-||-||micro||2.0||Y||-||Y|
|10.||Leica D-LUX Typ 109||Y||stereo||mono||-||-||micro||2.0||Y||Y||-|
|11.||Leica X Typ 113||Y||stereo||mono||-||-||mini||2.0||-||-||-|
|12.||Nikon Coolpix A||Y||stereo||mono||-||-||-||2.0||-||-||-|
|14.||Olympus E-M5 II||Y||stereo||mono||Y||-||micro||2.0||Y||-||-|
It is notable that the E-M5 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 E-M5 III is a recent model that features in the current product line-up of Olympus. 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 two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Olympus websites.
So what is the bottom line? Is the Fujifilm X100S better than the Olympus E-M5 III or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Fujifilm X100S:
- Ready to shoot: Has a lens built-in, whereas the E-M5 III requires a separate lens.
- More compact: Is smaller (127x74mm vs 125x85mm) and thus needs less room in the bag.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More heavily discounted: Has been available for much longer (launched in January 2013).
Arguments in favor of the Olympus OM-D E-M5 Mark III:
- More detail: Has more megapixels (20.2 vs 16MP), which boosts linear resolution by 10%.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- 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.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.68x 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 (1040k vs 460k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- 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.
- 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.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- 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 modern: Reflects 6 years and 9 months of technical progress since the X100S launch.
If the count of individual advantages (bullet points above) is taken as a guide, the E-M5 III is the clear winner of the contest (22 : 4 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.
How about other alternatives? Do the specifications of the Fujifilm X100S and the Olympus E-M5 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 says little about, for example, the shooting experience and imaging performance of the X100S and the E-M5 III 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.
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], 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 X100S||5/5||+ +||81/100||4.5/5||5/5||Jan 2013||1,299|
|2.||Olympus E-M5 III||5/5||+||82/100||4.5/5||4.5/5||Oct 2019||1,199|
|3.||Canon G1 X||5/5||+||76/100||4/5||4.5/5||Jan 2012||799|
|4.||Fujifilm X100F||5/5||+||83/100||4.5/5||4.5/5||Jan 2017||1,299|
|5.||Fujifilm X30||4/5||..||76/100||4.5/5||4.5/5||Aug 2014||599|
|6.||Fujifilm X100T||5/5||+||81/100||4.5/5||5/5||Sep 2014||1,299|
|7.||Fujifilm X-Pro1||5/5||+ +||79/100||4.5/5||4.5/5||Jan 2012||1,699|
|8.||Fujifilm X100||3/5||..||75/100||4/5||5/5||Sep 2010||1,199|
|9.||Leica D-LUX 7||..||..||..||..||4.5/5||Nov 2018||1,195|
|10.||Leica D-LUX Typ 109||..||..||..||4.5/5||4.5/5||Sep 2014||1,195|
|11.||Leica X Typ 113||3.5/5||..||..||3.5/5||4/5||Sep 2014||2,295|
|12.||Nikon Coolpix A||4/5||+||75/100||4/5||4/5||Mar 2013||1,099|
|13.||Olympus PEN-F||..||..||82/100||4.5/5||5/5||Jan 2016||1,199|
|14.||Olympus E-M5 II||5/5||+ +||81/100||5/5||5/5||Feb 2015||1,099|
|15.||Olympus E-M1||5/5||+ +||84/100||4.5/5||4.5/5||Sep 2013||1,399|
|16.||Olympus E-M5||4/5||+ +||80/100||4.5/5||5/5||Feb 2012||1,299|
|17.||Panasonic GX8||5/5||+||82/100||4.5/5||4.5/5||Jul 2015||1,199|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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.
Specifications: Fujifilm X100S vs Olympus E-M5 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 Model||Fujifilm X100S||Olympus E-M5 III|
|Camera Type||Fixed lens compact camera||Mirrorless system camera|
|Camera Lens||35mm f/2.0||Micro Four Thirds lenses|
|Launch Date||January 2013||October 2019|
|Launch Price||USD 1,299||USD 1,199|
|Sensor Specs||Fujifilm X100S||Olympus E-M5 III|
|Sensor Format||APS-C Sensor||Four Thirds Sensor|
|Sensor Size||23.6 x 15.6 mm||17.3 x 13.0 mm|
|Sensor Area||368.16 mm2||224.9 mm2|
|Sensor Diagonal||28.3 mm||21.6 mm|
|Sensor Resolution||16 Megapixels||20.2 Megapixels|
|Image Resolution||4896 x 3264 pixels||5184 x 3888 pixels|
|Pixel Pitch||4.80 μm||3.34 μm|
|Pixel Density||4.34 MP/cm2||8.96 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||1080/60p Video||4K/30p Video|
|ISO Setting||200 - 6,400 ISO||200 - 25,600 ISO|
|ISO Boost||100 - 25,600 ISO||64 - 25,600 ISO|
|Image Processor||EXR Processor II||TruePic VIII|
|Screen Specs||Fujifilm X100S||Olympus E-M5 III|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2360k dots||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.8inch||3.0inch|
|LCD Resolution||460k dots||1040k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Fujifilm X100S||Olympus E-M5 III|
|Focus System||On-Sensor Phase-detect||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||6 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/32000s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||no shake reduction||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-II|
|Connectivity Specs||Fujifilm X100S||Olympus E-M5 III|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||no Wifi||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Fujifilm X100S||Olympus E-M5 III|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||330 shots per charge||310 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
127 x 74 x 54 mm
(5.0 x 2.9 x 2.1 in)
125 x 85 x 50 mm
(4.9 x 3.3 x 2.0 in)
|Camera Weight||445 g (15.7 oz)||414 g (14.6 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.