Fujifilm X-S20 vs Sony a7 III

This is a full comparison between the cameras Fujifilm X-S20 and Sony a7 III. We compare them by looking at the categories you see below.

Manufacturing

Fujifilm X-S20 is manufacturered by Fujifilm but Sony a7 III is from Sony. Both Fujifilm and Sony are well known brands though.

Fujifilm X-S20 were released 2023 and Sony a7 III was released 2018. That is a 5 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Fujifilm X-S20 2023
Sony a7 III 2018

Type of camera

Both these cameras are Mirrorless cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Fujifilm X-S20 has a "Fujifilm APS-C"-sensor while Sony a7 III has a "Sony Full Frame"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera Focal length, 50mm f/1.8 **
Fujifilm X-S20 75 mm
Fujifilm sensor
Crop factor/focal length multiplier by * 1.5
Sony a7 III 50 mm
Full-frame sensor
No crop factor/focal length multiplier

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:

Resolution

Fujifilm X-S20 has a 26 MP (Megapixels) resolution while Sony a7 III has 24 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Fujifilm X-S20 26 MP
25958400 pixels
6240 x 4160
Sony a7 III 24 MP
24000000 pixels
6000 x 4000

Fujifilm X-S20 has a 8 % larger resolution than Sony a7 III. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Sony a7 III has a larger ISO-range than Fujifilm X-S20. Sony a7 III has an ISO range that stretches from 100 to 51200 while Fujifilm X-S20 has 160 to 12800.

Camera ISO Range
Fujifilm X-S20 160-12800
Sony a7 III 100-51200

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Fujifilm X-S20
Lens compatibility chart for Sony a7 III

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Fujifilm X-S20 can shoot up to 8 pictures per seconds and Sony a7 III can shoot up to 10 pictures per seconds.

Camera FPS (Frames per second)
Fujifilm X-S20 8
Sony a7 III 10

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

In this case, both Fujifilm X-S20 and Sony a7 III can shoot movies.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Sony a7 III weighs 650 gr (equal to 1.43 lb) which is 32% heavier than Fujifilm X-S20 and its 491 gr (or 1.08 lb).

Camera Weight
Fujifilm X-S20 491 gr
1.08 lb
Sony a7 III 650 gr
1.43 lb

Fujifilm X-S20 vs Sony a7 III Specs

Below you will find the complete and detailed technical specs for both Fujifilm X-S20 and Sony a7 III, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product
Fujifilm X-S20
Sony a7 III
Name Fujifilm X-S20 Sony a7 III
Manufacturer Fujifilm Sony
Release Date and Price
Fujifilm X-S20
Sony a7 III
Release Year 2023 2018
Release Date 2023-05-24 2018-02-27
MSRP 1299 USD 1999 USD
Buy it today
Camera Type
Fujifilm X-S20
Sony a7 III
Camera Type Mirrorless Mirrorless
Sensor
Fujifilm X-S20
Sony a7 III
Sensor Size APS-C (approx 23.5 x 15.6 mm) Full Frame (approx 36 x 24 mm)
Sensor Type BSI-CMOS BSI-CMOS
Resolution 6240 x 4160 pixels 6000 x 4000 pixels
Megapixels 26 MP 24 MP
Image Processor X-Processor 5 Bionz X
Image
Fujifilm X-S20
Sony a7 III
ISO Range 160 - 12800 100 - 51200
White Balance Presets 7 11
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift)
Yes
(Sensor-Shift)
Image Stabilization CIPA Rating 7 stops 5 stops
Uncompressed format RAW RAW
Optics & Focus
Fujifilm X-S20
Sony a7 III
Autofocus Motor Yes Yes
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Focus Points 425 693
Lens Mount Fujifilm X

See Compatible Lenses
Sony E

See Compatible Lenses
Focal Length Multiplier APS-C Sensor (1.5x)
1.5x multiplier
Example:
24 mm becomes 36 mm
50 mm becomes 75 mm
100 mm becomes 150 mm
200 mm becomes 300 mm
Full frame
No multiplier
Example:
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
Screen & Viewfinder
Fujifilm X-S20
Sony a7 III
Articulated LCD Fully articulated Tilting
Screen size 3” 3”
Screen dots 1840000 921600
Touch screen Yes Yes
Screen type TFT LCD N/A
Live view Yes Yes
Viewfinder Type Electronic Electronic
Viewfinder Coverage 100% 100%
Viewfinder Magnification 0.93× (0.62× 35mm equiv.) 0.78x
Viewfinder Resolution 2360000 2359296
Photography features
Fujifilm X-S20
Sony a7 III
Frames per second 8 fps 10 fps
Minimum Shutter Speed 900 seconds 30 seconds
Maximum Shutter Speed 1/4000 seconds 1/8000 seconds
Built-in Flash Yes No
Built-in Flash Range 7 meters N/A
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse Yes No
Metering modes Multi
Center Weighted
Spot
Average
Multi
Center Weighted
Highlight Weighted
Spot
Average
Exposure Compensation +/- 5 (at 1/3 EV steps) +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Fujifilm X-S20
Sony a7 III
Video recording Yes Yes
Video format MPEG4
H.264
H.265
MPEG4
H.264
XAVC-S
AVCHD
Video resolution 1920 x 1080
3840 x 2160
4096 x 2160
1920 x 1080
3840 x 2160
Built-in Microphone Yes Yes
Built-in Speakers Yes Yes
Storage
Fujifilm X-S20
Sony a7 III
Memory Card SD/SDHC
Memory Stick Pro Duo
SD/SDHC
Connectivity
Fujifilm X-S20
Sony a7 III
HDMI Output Yes Yes
Microphone Port Yes Yes
Headphone Port Yes Yes
Wireless Yes
Built-in (802.11b/g/n + Bluetooth)
Yes
Built-in (with NFC and wireless control via PlayMemories Mobile app)
Remote Control Yes (via smartphone and wired remote) Wired
GPS No No
Body & Dimensions
Fujifilm X-S20
Sony a7 III
Enviromentally sealed No Yes
Battery Battery Pack Battery Pack
Battery Details NP-W235
NP-FZ100 lithium-ion battery and charger
Battery Life (CIPA) 750 shots 710 shots
Width 127 mm 127 mm
Height 85 mm 96 mm
Depth 65 mm 74 mm
Weight 491 gram 650 gram