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Fujifilm X20 vs Sony A7 IV

The Fujifilm X20 and the Sony Alpha A7 IV are two digital cameras that were officially introduced, respectively, in January 2013 and October 2021. The X20 is a fixed lens compact, while the A7 IV is a mirrorless interchangeable lens camera. The cameras are based on a 2/3 (X20) and a full frame (A7 IV) sensor. The Fujifilm has a resolution of 12 megapixels, whereas the Sony provides 32.7 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Fujifilm X20
versus
Sony A7 IV
Fujifilm X20   Sony A7 IV
Fixed lens compact camera Mirrorless system camera
28-112mm f/2.0-2.8 Sony E mount lenses
12 MP – Two Thirds sensor 32.7 MP – Full Frame sensor
1080/60p Video 4K/60p Video
ISO 100-12,800 ISO 100-51,200 (50 - 204,800)
Optical viewfinder Electronic viewfinder (3686k dots)
2.8" LCD – 460k dots 3.0" LCD – 1037k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
12 shutter flaps per second 10 shutter flaps per second
Lens-based stabilizationIn-body stabilization
not weather sealedWeathersealed body
270 shots per battery charge580 shots per battery charge
117 x 70 x 57 mm, 353 g 131 x 96 x 80 mm, 659 g
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Check A7 IV price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X20 and the Sony Alpha A7 IV? 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 side-by-side display below illustrates the physical size and weight of the Fujifilm X20 and the Sony A7 IV. 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 measures are rounded to the nearest millimeter.

The X20 can be obtained in two different colors (black, silver), while the A7 IV is only available in black.

Size Fujifilm X20 vs Sony A7 IV
Compare X20 versus A7 IV top
Comparison X20 or A7 IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 IV is considerably larger (54 percent) than the Fujifilm X20. It is noteworthy in this context that the A7 IV is splash and dust-proof, while the X20 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X20 has a lens built in, whereas the A7 IV 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 A7 IV and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the X20 gets 270 shots out of its Fujifilm NP-50 battery, while the A7 IV can take 580 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A7 IV 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. 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.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Fujifilm X20 117 mm 70 mm 57 mm 353 g 270 n Jan 2013 599ebay.com
2.
 
Sony A7 IV 131 mm 96 mm 80 mm 659 g 580 Y Oct 2021 2,499 amazon.com
3.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
4.
 
Canon G15 107 mm 76 mm 40 mm 352 g 350 n Sep 2012 499ebay.com
5.
 
Canon G16 109 mm 76 mm 40 mm 356 g 360 n Aug 2013 549ebay.com
6.
 
Fujifilm X10 117 mm 70 mm 57 mm 350 g 270 n Sep 2011 599ebay.com
7.
 
Fujifilm X30 119 mm 72 mm 60 mm 423 g 470 n Aug 2014 599ebay.com
8.
 
Fujifilm XQ1 100 mm 59 mm 33 mm 206 g 240 n Oct 2013 499ebay.com
9.
 
Leica D-LUX 6 111 mm 68 mm 46 mm 298 g 330 n Sep 2012 699ebay.com
10.
 
Nikon P7800 119 mm 78 mm 50 mm 399 g 350 n Sep 2013 549ebay.com
11.
 
Olympus Stylus 1 116 mm 87 mm 57 mm 402 g 410 n Oct 2013 699ebay.com
12.
 
Panasonic LX7 111 mm 68 mm 46 mm 298 g 330 n Jul 2012 499ebay.com
13.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 amazon.com
14.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
15.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
16.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 Y Oct 2022 3,899 amazon.com
17.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 amazon.com
Note: 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 X20 was launched at a lower price than the A7 IV, despite having a lens built in. 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 imaging sensor is a crucial determinant 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 X20 features a 2/3 sensor and the Sony A7 IV a full frame sensor. The sensor area in the A7 IV is 1379 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 3.9 and 1.0. The sensor in the X20 has a native 4:3 aspect ratio, while the one in the A7 IV offers a 3:2 aspect.

Fujifilm X20 and Sony A7 IV sensor measures

With 32.7MP, the A7 IV offers a higher resolution than the X20 (12MP), but the A7 IV nevertheless has larger individual pixels (pixel pitch of 5.12μm versus 2.20μm for the X20) due to its larger sensor. Moreover, the A7 IV is a much more recent model (by 8 years and 9 months) than the X20, 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 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 Sony A7 IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 IV for good quality output (200 dots per inch) amounts to 35 x 23.4 inches or 89 x 59.3 cm, for very good quality (250 dpi) 28 x 18.7 inches or 71.2 x 47.5 cm, and for excellent quality (300 dpi) 23.4 x 15.6 inches or 59.3 x 39.6 cm. The corresponding values for the Fujifilm X20 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

The Fujifilm X20 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Sony Alpha A7 IV are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the X20 is build around a CMOS sensor, while the A7 IV uses a BSI-CMOS imager. The X20 uses Fujifilm's X-Trans layout of photosites, while the A7 IV employs the more common Bayer array.

X20 versus A7 IV MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Fujifilm X20 2/3 12.0 4000 30001080/60p20.110.9-46246
2.
 
Sony A7 IV Full Frame 32.7 7008 46724K/60p25.414.7337997
3.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
4.
 
Canon G15 1/1.7 12.0 4000 30001080/24p19.911.516546
5.
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
6.
 
Fujifilm X10 2/3 12.0 4000 30001080/30p20.511.324550
7.
 
Fujifilm X30 2/3 12.0 4000 30001080/60p20.411.2-31249
8.
 
Fujifilm XQ1 2/3 12.0 4000 30001080/60p20.311.0-39047
9.
 
Leica D-LUX 6 1/1.7 10.0 3648 27361080/60p19.810.8-30343
10.
 
Nikon P7800 1/1.7 12.0 4000 30001080/30p21.211.720054
11.
 
Olympus Stylus 1 1/1.7 11.8 3968 29761080/30p20.711.617951
12.
 
Panasonic LX7 1/1.7 10.0 3648 27361080/60p20.711.714750
13.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
14.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
15.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
17.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
Note: DXO values in italics represent estimates based on sensor size and age.

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 A7 IV provides a better video resolution than the X20. It can shoot movie footage at 4K/60p, while the Fujifilm is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7 IV has an electronic viewfinder (3686k dots), while the X20 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The table below summarizes some of the other core capabilities of the Fujifilm X20 and Sony A7 IV in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty 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 X20optical n2.8 / 460 fixed n 1/4000s 12.0/s Y Y
2.
 
Sony A7 IV3686 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
3.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
4.
 
Canon G15optical n3.0 / 922 fixed n 1/4000s 2.1/s Y Y
5.
 
Canon G16optical n3.0 / 922 fixed n 1/4000s 2.2/s Y Y
6.
 
Fujifilm X10optical n2.8 / 460 fixed n 1/4000s 10.0/s Y Y
7.
 
Fujifilm X302360 n3.0 / 920 tilting n 1/4000s 12.0/s Y Y
8.
 
Fujifilm XQ1none n3.0 / 920 fixed n 1/4000s 12.0/s Y Y
9.
 
Leica D-LUX 6optional n3.0 / 920 fixed n 1/4000s 11.0/s Y Y
10.
 
Nikon P7800921 n3.0 / 921 swivel n 1/4000s 8.0/s Y Y
11.
 
Olympus Stylus 11440 n3.0 / 1040 tilting Y 1/2000s 7.0/s Y Y
12.
 
Panasonic LX7optional n3.0 / 920 fixed n 1/4000s 11.0/s Y Y
13.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A7R V9440 n3.2 / 2100 full-flex Y 1/8000s 10.0/s n Y
17.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The X20 has one, while the A7 IV does not. While the built-in flash of the X20 is not very powerful, it can at times be useful as a fill-in light.

The A7 IV 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 X20 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 A7 IV 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 X20 writes its imaging data to SDXC cards, while the A7 IV uses CFexpress (type A) or SDXC cards. The A7 IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the X20 only has one slot. The A7 IV supports UHS-II cards (on both slots), while the X20 cannot take advantage of Ultra High Speed SD cards.

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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 X20 and Sony Alpha A7 IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Fujifilm X20Ystereo / mono--micro2.0---
2.
 
Sony A7 IVYstereo / monoYYfull3.2Y-Y
3.
 
Canon G7 X-stereo / mono--micro2.0YY-
4.
 
Canon G15Ystereo / mono--mini2.0---
5.
 
Canon G16Ystereo / mono--mini2.0Y--
6.
 
Fujifilm X10Ystereo / mono--mini2.0---
7.
 
Fujifilm X30Ystereo / mono--micro2.0Y--
8.
 
Fujifilm XQ1-stereo / mono--micro2.0Y--
9.
 
Leica D-LUX 6Ystereo / mono--mini2.0---
10.
 
Nikon P7800Ystereo / monoY-mini2.0---
11.
 
Olympus Stylus 1Ystereo / mono--micro2.0Y--
12.
 
Panasonic LX7Ystereo / mono--mini2.0---
13.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
14.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
15.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
16.
 
Sony A7R VYstereo / monoYYfull3.2Y-Y
17.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y

It is notable that the A7 IV offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the X20 does not provide wifi capability.

The A7 IV is a recent model that features in the current product line-up of Sony. In contrast, the X20 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the X20 was succeeded by the Fujifilm X30. Further information on the features and operation of the X20 and A7 IV can be found, respectively, in the Fujifilm X20 Manual (free pdf) or the online Sony A7 IV Manual.

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Review summary

So what conclusions can be drawn? Is the Fujifilm X20 better than the Sony A7 IV or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Fujifilm X20:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Has a lens built-in, whereas the A7 IV requires a separate lens.
  • More compact: Is smaller (117x70mm vs 131x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7 IV).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been available for much longer (launched in January 2013).

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Advantages of the Sony Alpha A7 IV:

  • More detail: Has more megapixels (32.7 vs 12MP), which boosts linear resolution by 68%.
  • 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 1080/60p).
  • 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.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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 (1037k 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.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (580 versus 270) 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.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • 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.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards on both slots.
  • More modern: Reflects 8 years and 9 months of technical progress since the X20 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7 IV is the clear winner of the contest (27 : 8 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

X20 08:27 A7 IV

How about other alternatives? Do the specifications of the Fujifilm X20 and the Sony A7 IV place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens Camera listings 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 says little about, for example, the shooting experience and imaging performance of the X20 and the A7 IV 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.

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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Fujifilm X204/5+ +..77/1004.5/55/5 Jan 2013 599ebay.com
2.
 
Sony A7 IV5/5+ +4.5/589/1004.5/54.5/5 Oct 2021 2,499 amazon.com
3.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
4.
 
Canon G154/5+..76/1004.5/54.5/5 Sep 2012 499ebay.com
5.
 
Canon G164/5+....4.5/54.5/5 Aug 2013 549ebay.com
6.
 
Fujifilm X10......76/1004/54.5/5 Sep 2011 599ebay.com
7.
 
Fujifilm X304/5....76/1004.5/54.5/5 Aug 2014 599ebay.com
8.
 
Fujifilm XQ1........4.5/54.5/5 Oct 2013 499ebay.com
9.
 
Leica D-LUX 6........4/54/5 Sep 2012 699ebay.com
10.
 
Nikon P78003/5......4/54.5/5 Sep 2013 549ebay.com
11.
 
Olympus Stylus 1..+ +....4.5/54.5/5 Oct 2013 699ebay.com
12.
 
Panasonic LX73/5+ +..75/1004/54.5/5 Jul 2012 499ebay.com
13.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 amazon.com
14.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
15.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
16.
 
Sony A7R V5/5+ +4.5/592/100.... Oct 2022 3,899 amazon.com
17.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 3,499 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, 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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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Fujifilm X20 vs Sony A7 IV

    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 X20 Sony A7 IV
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 28-112mm f/2.0-2.8 Sony E mount lenses
    Launch Date January 2013 October 2021
    Launch Price USD 599 USD 2,499
    Sensor Specs Fujifilm X20 Sony A7 IV
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Two Thirds Sensor Full Frame Sensor
    Sensor Size 8.8 x 6.6 mm 35.9 x 23.9 mm
    Sensor Area 58.08 mm2 858.01 mm2
    Sensor Diagonal 11 mm 43.1 mm
    Crop Factor 3.9x 1.0x
    Sensor Resolution 12 Megapixels 32.7 Megapixels
    Image Resolution 4000 x 3000 pixels 7008 x 4672 pixels
    Pixel Pitch 2.20 μm 5.12 μm
    Pixel Density 20.66 MP/cm2 3.82 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 1080/60p Video 4K/60p Video
    ISO Setting 100 - 12,800 ISO 100 - 51,200 ISO
    ISO Boost no Enhancement 50 - 204,800 ISO
    Image Processor EXR Processor II BIONZ XR
    DXO Sensor Quality (score) .. 97
    DXO Color Depth (bits) .. 25.4
    DXO Dynamic Range (EV) .. 14.7
    DXO Low Light (ISO) .. 3379
    Screen Specs Fujifilm X20 Sony A7 IV
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 85% 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 2.8inch 3.0inch
    LCD Resolution 460k dots 1037k dots
    LCD Attachment Fixed screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Fujifilm X20 Sony A7 IV
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 12 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Image StabilizationLens-based stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards CFexA or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support no Dual UHS-II
    Connectivity Specs Fujifilm X20 Sony A7 IV
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 3.2
    HDMI Port micro HDMI full HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Fujifilm X20 Sony A7 IV
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Fujifilm NP-50 Sony NP-FZ100
    Battery Life (CIPA)270 shots per charge580 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 117 x 70 x 57 mm
    (4.6 x 2.8 x 2.2 in)
    131 x 96 x 80 mm
    (5.2 x 3.8 x 3.1 in)
    Camera Weight 353 g (12.5 oz) 659 g (23.2 oz)
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