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Fujifilm X-T20 versus Sony RX10 IV

The Fujifilm X-T20 and the Sony Cyber-shot DSC-RX10 IV are two digital cameras that were announced, respectively, in January 2017 and September 2017. The X-T20 is a mirrorless interchangeable lens camera, while the RX10 IV is a fixed lens compact. The cameras are based on an APS-C (X-T20) and an one-inch sensor. The Fujifilm has a resolution of 24 megapixel, whereas the Sony provides 20 MP.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Fujifilm X-T20 and the Sony RX10 IV. 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-T20 – represents the basis for the calculations across all the size and weight measures).

Fujifilm X-T20 vs Sony RX10 IV front
X-T20 versus RX10 IV top view
X-T20 and RX10 IV rear side
Body view (X-T20 on the left)

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX10 IV is notably larger (28 percent) than the Fujifilm X-T20. It is noteworthy in this context that the RX10 IV is splash and dust-proof, while the X-T20 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX10 IV has a lens build in, whereas the X-T20 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-T20 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 comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Fujifilm X-T20 (⇒ rgt) 118 mm 83 mm 41 mm 383 g 350 no 2017 899 latest check
Sony RX10 IV (⇒ lft) 133 mm 94 mm 145 mm 1095 g 400 YES 2017 1,699 latest check
Canon M6 (⇒ lft | rgt) 112 mm 68 mm 45 mm 390 g 295 no 2017 779 latest check
Canon M5 (⇒ lft | rgt) 116 mm 89 mm 61 mm 427 g 295 no 2016 979 latest check
Fujifilm X-E3 (⇒ lft | rgt) 121 mm 74 mm 43 mm 337 g 350 no 2017 899 latest check
Fujifilm X70 (⇒ lft | rgt) 113 mm 64 mm 44 mm 340 g 330 no 2016 799 latest check
Fujifilm X-A3 (⇒ lft | rgt) 117 mm 67 mm 40 mm 339 g 410 no 2016 399 latest check
Fujifilm X-E2S (⇒ lft | rgt) 129 mm 75 mm 37 mm 350 g 350 no 2016 699discont. check
Fujifilm X-Pro2 (⇒ lft | rgt) 141 mm 83 mm 46 mm 495 g 350 YES 2016 1,699 latest check
Fujifilm X-T2 (⇒ lft | rgt) 133 mm 92 mm 49 mm 507 g 340 YES 2016 1,599 latest check
Fujifilm X-A10 (⇒ lft | rgt) 117 mm 67 mm 40 mm 331 g 410 no 2016 399 latest check
Fujifilm X-T10 (⇒ lft | rgt) 118 mm 83 mm 41 mm 381 g 350 no 2015 799discont. check
Fujifilm X-E2 (⇒ lft | rgt) 129 mm 75 mm 37 mm 350 g 350 no 2013 999discont. check
Fujifilm X-E1 (⇒ lft | rgt) 129 mm 75 mm 38 mm 350 g 350 no 2012 999discont. check
Nikon D500 (⇒ lft | rgt) 147 mm 115 mm 81 mm 860 g 1240 YES 2016 1,999 latest check
Sony RX10 III (⇒ lft | rgt) 133 mm 94 mm 127 mm 1051 g 420 YES 2016 1,499discont. check
Sony A7 (⇒ lft | rgt) 127 mm 94 mm 48 mm 474 g 340 YES 2013 1,699discont. check

The listed 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

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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Fujifilm X-T20 features an APS-C sensor and the Sony RX10 IV an one-inch sensor. The sensor area in the RX10 IV is 68 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.

Fujifilm X-T20 and Sony RX10 IV sensor measures
Sensor size

With 24MP, the X-T20 offers a higher resolution than the RX10 IV (20MP), but the X-T20 nevertheless has larger individual pixels (pixel pitch of 3.92μm versus 2.41μm for the RX10 IV) due to its larger sensor. However, the RX10 IV is a somewhat more recent model (by 7 months) than the X-T20, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the X-T20 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

X-T20 versus RX10 IV MP
Sensor resolution

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.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Fujifilm X-T20 (⇒ rgt) APS-C 24.0 6000 4000 4K/30p - - - -
Sony RX10 IV (⇒ lft) 1-inch 20.0 5472 3648 4K/30p .. .. .. ..
Canon M6 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon M5 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.4 12.4 1262 77
Fujifilm X-E3 (⇒ lft | rgt) APS-C 24.0 6000 4000 4K/30p - - - -
Fujifilm X70 (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/60p - - - -
Fujifilm X-A3 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p - - - -
Fujifilm X-E2S (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/60p - - - -
Fujifilm X-Pro2 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p - - - -
Fujifilm X-T2 (⇒ lft | rgt) APS-C 24.0 6000 4000 4K/30p - - - -
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-E2 (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/60p - - - -
Fujifilm X-E1 (⇒ lft | rgt) APS-C 16.0 4896 3264 1080/24p - - - -
Nikon D500 (⇒ lft | rgt) APS-C 20.7 5568 3712 4K/30p 24.0 14.0 1324 83
Sony RX10 III (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 23.1 12.6 472 70
Sony A7 (⇒ lft | rgt) Full Frame 24.0 6000 4000 1080/60p 24.8 14.2 2248 90

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 (4K/30p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the X-T20 offers a slightly higher resolution than the one in the RX10 IV (2360k vs 2359k dots). The adjacent table lists some of the other core features of the Fujifilm X-T20 and Sony RX10 IV 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.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Fujifilm X-T20 (⇒ rgt) 2360 no 3.0 1040 tilting YES 4000 8.0 5 no
Sony RX10 IV (⇒ lft) 2359 YES 3.0 1440 tilting YES 2000 24.0 10.8 YES
Canon M6 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 9.0 5 no
Canon M5 (⇒ lft | rgt) 2360 no 3.2 1620 tilting YES 4000 9.0 5 no
Fujifilm X-E3 (⇒ lft | rgt) 2360 no 3.0 1040 fixed YES 4000 8.0 no no
Fujifilm X70 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 8.0 7.9 ..
Fujifilm X-A3 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 6.0 7 no
Fujifilm X-E2S (⇒ lft | rgt) 2360 no 3.0 1040 fixed no 4000 7.0 7 no
Fujifilm X-Pro2 (⇒ lft | rgt) 2360 no 3.0 1620 fixed no 8000 8.0 no no
Fujifilm X-T2 (⇒ lft | rgt) 2360 no 3.0 1040 tilting no 8000 14.0 no 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-E2 (⇒ lft | rgt) 2360 no 3.0 1040 fixed no 4000 7.0 7 no
Fujifilm X-E1 (⇒ lft | rgt) 2360 no 2.8 460 fixed no 4000 6.0 YES no
Nikon D500 (⇒ lft | rgt) optical YES 3.2 2359 tilting YES 8000 10.0 no no
Sony RX10 III (⇒ lft | rgt) 2359 YES 3.0 1229 tilting no 2000 14.0 10.8 YES
Sony A7 (⇒ lft | rgt) 2400 no 3.0 1230 tilting no 8000 5.0 no no

Both the X-T20 and the RX10 IV are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The X-T20 replaced the earlier Fujifilm X-T10, while the RX10 IV followed on from the Sony RX10 III.

Summary

So how do things add up? Is there a clear favorite between the Fujifilm X-T20 and the Fujifilm X-T20? A synthesis of the relative strong points of each of the models is listed below.


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Advantages of the Fujifilm X-T20:

  • More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better low-light imaging: Features bigger pixels on a larger sensor for better high-ISO images.
  • 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.
  • More compact: Is smaller (118x83mm vs 133x94mm) and thus needs less room in the bag.
  • More heavily discounted: Has been on the market for longer (launched in January 2017).

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Arguments in favor of the Sony Cyber-shot DSC-RX10 IV:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Easier setting verification: Has a control panel on top to check shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
  • Faster burst: Shoots at higher frequency (24 vs 8 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Has an integrated lens, whereas the X-T20 necessitates an extra lens.
  • Longer lasting: Gets more shots (400 versus 350) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • More modern: Was introduced somewhat (7 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the RX10 IV comes out slightly ahead of the X-T20 (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.

X-T20 07:08 RX10 IV

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-T20 or the RX10 IV. 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. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.

Review scores
Camera camera
labs
dp
review
ephoto
zine
imaging
resource
photography
blog
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Fujifilm X-T20 (⇒ rgt) HiRec 82/100 Silver 5/5 .. 4.5/5 2017 899 latest check
Sony RX10 IV (⇒ lft) Rec 84/100 Gold 4.5/5 .. 5/5 2017 1,699 latest check
Canon M6 (⇒ lft | rgt) - 80/100 Silver 4/5 4.5/5 4/5 2017 779 latest check
Canon M5 (⇒ lft | rgt) Rec 82/100 Silver 4/5 4.5/5 4/5 2016 979 latest check
Fujifilm X-E3 (⇒ lft | rgt) Rec 84/100 Gold 4.5/5 .. 4.5/5 2017 899 latest check
Fujifilm X70 (⇒ lft | rgt) - 76/100 4.5/5 4/5 4.5/5 2016 799 latest check
Fujifilm X-A3 (⇒ lft | rgt) - 74/100 4.5/5 - 4/5 2016 399 latest check
Fujifilm X-E2S (⇒ lft | rgt) - 77/100 4.5/5 - 4.5/5 2016 699discont. check
Fujifilm X-Pro2 (⇒ lft | rgt) Rec 83/100 Silver 4.5/5 4.5/5 4.5/5 2016 1,699 latest check
Fujifilm X-T2 (⇒ lft | rgt) HiRec 86/100 Gold 4.5/5 5/5 5/5 2016 1,599 latest 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 799discont. check
Fujifilm X-E2 (⇒ lft | rgt) - 80/100 Gold 4.5/5 - 5/5 2013 999discont. check
Fujifilm X-E1 (⇒ lft | rgt) HiRec 79/100 Gold 4.5/5 4.5/5 4.5/5 2012 999discont. check
Nikon D500 (⇒ lft | rgt) HiRec 91/100 Gold 4.5/5 5/5 5/5 2016 1,999 latest check
Sony RX10 III (⇒ lft | rgt) Rec 84/100 Silver 4.5/5 4.5/5 4.5/5 2016 1,499discont. check
Sony A7 (⇒ lft | rgt) HiRec 80/100 Silver 5/5 4.5/5 5/5 2013 1,699discont. 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.

Other comparisons

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. If the camera you are interested in is not available, please contact me, and I will try to add information on that model to the database.

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