Fujifilm X-A3 versus Sony RX100 III
The Fujifilm X-A3 and the Sony Cyber-shot DSC-RX100 III are two digital cameras that were announced, respectively, in August 2016 and May 2014. The X-A3 is a mirrorless interchangeable lens camera, while the RX100 III is a fixed lens compact. The cameras are based on an APS-C (X-A3) and an one-inch (RX100 III) sensor. The Fujifilm has a resolution of 24 megapixel, whereas the Sony provides 20 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.
Body comparison: Fujifilm X-A3 vs Sony RX100 III
An illustration of the physical size and weight of the Fujifilm X-A3 and the Sony RX100 III is provided in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All size dimensions are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left side – the X-A3 – represents the basis for the calculations across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX100 III is notably smaller (25 percent) than the Fujifilm X-A3. In this context, it is worth noting that neither the X-A3 nor the RX100 III are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX100 III has a lens build in, whereas the X-A3 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can find an overview of optics for the X-A3 and their specifications in the Fujinon X Lens Catalog.
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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|Camera Body Specifications
|Fujifilm X-A3 (⇒ rgt)||4.6 in||2.6 in||1.6 in||12.0 oz||410||no||2016||399||latest||check|
|Sony RX100 III (⇒ lft)||4.0 in||2.3 in||1.6 in||10.2 oz||320||no||2014||799||discont.||check|
|Canon SX730 (⇒ lft | rgt)||4.3 in||2.5 in||1.6 in||10.6 oz||250||no||2017||399||latest||check|
|Canon G5 X (⇒ lft | rgt)||4.4 in||3.0 in||1.7 in||12.5 oz||210||no||2015||799||latest||check|
|Canon G7 X (⇒ lft | rgt)||4.1 in||2.4 in||1.6 in||10.7 oz||210||no||2014||699||discont.||check|
|Fujifilm X-A5 (⇒ lft | rgt)||4.6 in||2.7 in||1.6 in||12.7 oz||450||no||2018||399||latest||check|
|Fujifilm X-E3 (⇒ lft | rgt)||4.8 in||2.9 in||1.7 in||11.9 oz||350||no||2017||899||latest||check|
|Fujifilm X-T20 (⇒ lft | rgt)||4.6 in||3.3 in||1.6 in||13.5 oz||350||no||2017||899||latest||check|
|Fujifilm X-E2S (⇒ lft | rgt)||5.1 in||3.0 in||1.5 in||12.3 oz||350||no||2016||699||discont.||check|
|Fujifilm X-A10 (⇒ lft | rgt)||4.6 in||2.6 in||1.6 in||11.7 oz||410||no||2016||399||latest||check|
|Fujifilm X-T10 (⇒ lft | rgt)||4.6 in||3.3 in||1.6 in||13.4 oz||350||no||2015||799||discont.||check|
|Fujifilm X-A2 (⇒ lft | rgt)||4.6 in||2.6 in||1.6 in||12.3 oz||410||no||2015||399||discont.||check|
|Fujifilm X-A1 (⇒ lft | rgt)||4.6 in||2.6 in||1.5 in||11.6 oz||350||no||2013||399||discont.||check|
|Panasonic FZ1000 (⇒ lft | rgt)||5.4 in||3.9 in||5.2 in||29.3 oz||360||no||2014||899||discont.||check|
|Sony RX100 IV (⇒ lft | rgt)||4.0 in||2.3 in||1.6 in||10.5 oz||280||no||2015||999||discont.||check|
|Sony RX100 II (⇒ lft | rgt)||4.0 in||2.3 in||1.5 in||9.9 oz||350||no||2013||749||discont.||check|
|YI M1 (⇒ lft | rgt)||4.5 in||2.5 in||1.3 in||9.9 oz||450||no||2016||349||latest||check|
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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison: Fujifilm X-A3 vs Sony RX100 III
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 tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color depth than smaller pixel-units in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Fujifilm X-A3 features an APS-C sensor and the Sony RX100 III an one-inch sensor. The sensor area in the RX100 III is 69 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 24MP, the X-A3 offers a higher resolution than the RX100 III (20MP), but the X-A3 nevertheless has larger individual pixels (pixel pitch of 3.92μm versus 2.41μm for the RX100 III) due to its larger sensor. Moreover, the X-A3 is a somewhat more recent model (by 2 years and 3 months) than the RX100 III, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
For most cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Fujifilm X-A3 (⇒ rgt)||APS-C||24.0||6000||4000||1080/60p||-||-||-||-|
|Sony RX100 III (⇒ lft)||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67|
|Canon SX730 (⇒ lft | rgt)||1/2.3||20.2||5184||3888||1080/60p||-||-||-||-|
|Canon G5 X (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||-||-||-||-|
|Canon G7 X (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Fujifilm X-A5 (⇒ lft | rgt)||APS-C||24.0||6000||4000||4K/15p||..||..||..||..|
|Fujifilm X-E3 (⇒ lft | rgt)||APS-C||24.0||6000||4000||4K/30p||-||-||-||-|
|Fujifilm X-T20 (⇒ lft | rgt)||APS-C||24.0||6000||4000||4K/30p||-||-||-||-|
|Fujifilm X-E2S (⇒ lft | rgt)||APS-C||16.0||4896||3264||1080/60p||-||-||-||-|
|Fujifilm X-A10 (⇒ lft | rgt)||APS-C||16.0||4896||3264||1080/30p||-||-||-||-|
|Fujifilm X-T10 (⇒ lft | rgt)||APS-C||16.0||4896||3264||1080/60p||-||-||-||-|
|Fujifilm X-A2 (⇒ lft | rgt)||APS-C||16.0||4896||3264||1080/30p||-||-||-||-|
|Fujifilm X-A1 (⇒ lft | rgt)||APS-C||16.0||4896||3264||1080/30p||-||-||-||-|
|Panasonic FZ1000 (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||22.1||11.7||517||64|
|Sony RX100 IV (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|Sony RX100 II (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||67|
|YI M1 (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/30p||-||-||-||-|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).
Feature comparison: Fujifilm X-A3 vs Sony RX100 III
Apart from body and sensor, cameras can and do differ across a range of features. For example, the RX100 III has an electronic viewfinder (1440k dots), which can be very helpful when shooting in bright sunlight. In contrast, the X-A3 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Fujifilm X-A3 and Sony RX100 III along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.
|Fujifilm X-A3 (⇒ rgt)||no||no||3.0||1040||tilting||YES||4000||6.0||7||no|
|Sony RX100 III (⇒ lft)||1440||no||3.0||1229||tilting||no||2000||10.0||YES||YES|
|Canon SX730 (⇒ lft | rgt)||no||no||3.0||922||tilting||no||3200||5.9||4||YES|
|Canon G5 X (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||2000||5.9||7||YES|
|Canon G7 X (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||2000||6.5||7||YES|
|Fujifilm X-A5 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||6.0||5.7||no|
|Fujifilm X-E3 (⇒ lft | rgt)||2360||no||3.0||1040||fixed||YES||4000||8.0||no||no|
|Fujifilm X-T20 (⇒ lft | rgt)||2360||no||3.0||1040||tilting||YES||4000||8.0||5||no|
|Fujifilm X-E2S (⇒ lft | rgt)||2360||no||3.0||1040||fixed||no||4000||7.0||7||no|
|Fujifilm X-A10 (⇒ lft | rgt)||no||no||3.0||1040||tilting||no||4000||6.0||5||no|
|Fujifilm X-T10 (⇒ lft | rgt)||2360||no||3.0||920||tilting||no||4000||8.0||5||no|
|Fujifilm X-A2 (⇒ lft | rgt)||no||no||3.0||920||tilting||no||4000||5.6||7||no|
|Fujifilm X-A1 (⇒ lft | rgt)||no||no||3.0||920||tilting||no||4000||5.6||7||no|
|Panasonic FZ1000 (⇒ lft | rgt)||2359||no||3.0||921||swivel||no||4000||12.0||13.5||YES|
|Sony RX100 IV (⇒ lft | rgt)||2359||no||3.0||1228||tilting||no||2000||16.0||10.2||YES|
|Sony RX100 II (⇒ lft | rgt)||no||no||3.0||1229||tilting||no||2000||10.0||15||YES|
|YI M1 (⇒ lft | rgt)||no||no||3.0||1040||fixed||YES||4000||5.0||no||no|
The X-A3 is a current model that online retailers, such as amazon, will have in stock. In contrast, the RX100 III has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the RX100 III was succeeded by the Sony RX100 IV.
Review summary: Fujifilm X-A3 vs Sony RX100 III
So how do things add up? Is there a clear favorite between the Fujifilm X-A3 and the Sony RX100 III? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Fujifilm X-A3:
- More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
- Better image quality: Features a larger and more technologically advanced imaging sensor.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster shutter: Has higher mechanical shutter speed (4000/sec vs 2000/sec) to freeze action.
- More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
- Longer lasting: Can take more shots (410 versus 320) on a single battery charge.
- More modern: Reflects 2 years and 3 months of technical progress since the RX100 III launch.
Arguments in favor of the Sony Cyber-shot DSC-RX100 III:
- Easier framing: Has an electronic viewfinder for image framing and settings control.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
- Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
- Ready to shoot: Has an integrated lens, whereas the X-A3 necessitates an extra lens.
- More compact: Is smaller (102x58mm vs 117x67mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens build in (unlike the X-A3).
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More heavily discounted: Has been around for much longer (launched in May 2014).
If the count of relative strengths (bullet points above) is taken as a measure, the RX100 III comes out slightly ahead of the X-A3 (8 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the X-A3 or the RX100 III. 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. This is why hands-on reviews by experts are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.
|Fujifilm X-A3 (⇒ rgt)||-||74/100||4.5/5||-||4/5||2016||399||latest||check|
|Sony RX100 III (⇒ lft)||HiRec||82/100 Gold||4.5/5||4.5/5||5/5||2014||799||discont.||check|
|Canon SX730 (⇒ lft | rgt)||Rec||-||4/5||-||4/5||2017||399||latest||check|
|Canon G5 X (⇒ lft | rgt)||HiRec||78/100 Silver||4.5/5||4/5||4.5/5||2015||799||latest||check|
|Canon G7 X (⇒ lft | rgt)||HiRec||77/100 Silver||4.5/5||3.5/5||4.5/5||2014||699||discont.||check|
|Fujifilm X-A5 (⇒ lft | rgt)||..||..||..||..||3.5/5||2018||399||latest||check|
|Fujifilm X-E3 (⇒ lft | rgt)||Rec||84/100 Gold||4.5/5||4.5/5||4.5/5||2017||899||latest||check|
|Fujifilm X-T20 (⇒ lft | rgt)||HiRec||82/100 Silver||5/5||..||4.5/5||2017||899||latest||check|
|Fujifilm X-E2S (⇒ lft | rgt)||-||77/100||4.5/5||-||4.5/5||2016||699||discont.||check|
|Fujifilm X-A10 (⇒ lft | rgt)||-||-||4/5||-||4/5||2016||399||latest||check|
|Fujifilm X-T10 (⇒ lft | rgt)||HiRec||80/100 Silver||5/5||4/5||5/5||2015||799||discont.||check|
|Fujifilm X-A2 (⇒ lft | rgt)||-||-||4.5/5||4/5||4.5/5||2015||399||discont.||check|
|Fujifilm X-A1 (⇒ lft | rgt)||-||-||4.5/5||-||4.5/5||2013||399||discont.||check|
|Panasonic FZ1000 (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||4.5/5||2014||899||discont.||check|
|Sony RX100 IV (⇒ lft | rgt)||HiRec||85/100 Gold||4/5||4.5/5||4.5/5||2015||999||discont.||check|
|Sony RX100 II (⇒ lft | rgt)||HiRec||79/100 Silver||4.5/5||5/5||4.5/5||2013||749||discont.||check|
|YI M1 (⇒ lft | rgt)||-||69/100||-||2.5/5||-||2016||349||latest||check|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when refering 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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