Fujifilm X-S20 vs Sony a7S III

This is a full comparison between the cameras Fujifilm X-S20 and Sony a7S III. We compare them by looking at the categories you see below.

Manufacturing

Fujifilm X-S20 is manufacturered by Fujifilm but Sony a7S III is from Sony. Both Fujifilm and Sony are well known brands though.

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 a7S 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.

** 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 a7S III has 12 MP. If we break down this in more detail this is the data behind the numbers:

Fujifilm X-S20 has a 116 % larger resolution than Sony a7S 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 a7S III has a larger ISO-range than Fujifilm X-S20. Sony a7S III has an ISO range that stretches from 80 to 102400 while Fujifilm X-S20 has 160 to 12800.

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 a7S 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 a7S III can shoot up to 10 pictures per seconds.

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 a7S 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 a7S III weighs 699 gr (equal to 1.54 lb) which is 42% heavier than Fujifilm X-S20 and its 491 gr (or 1.08 lb).

Fujifilm X-S20 vs Sony a7S III Specs

Below you will find the complete and detailed technical specs for both Fujifilm X-S20 and Sony a7S 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 a7S III
Name	Fujifilm X-S20	Sony a7S III
Manufacturer	Fujifilm	Sony
Release Date and Price	Fujifilm X-S20	Sony a7S III
Release Year	2023	2020
Release Date	2023-05-24	2020-07-28
MSRP	1299 USD	3499 USD
Buy it today
Camera Type	Fujifilm X-S20	Sony a7S III
Camera Type	Mirrorless	Mirrorless
Sensor	Fujifilm X-S20	Sony a7S 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	4240 x 2832 pixels
Megapixels	26 MP	12 MP
Image Processor	X-Processor 5	Bionz XR
Image	Fujifilm X-S20	Sony a7S III
ISO Range	160 - 12800	80 - 102400
White Balance Presets	7	7
Custom White Balance	Yes	Yes
Image Stabilization	Yes (Sensor-Shift)	Yes (Sensor-Shift (5-axis))
Image Stabilization CIPA Rating	7 stops	5.5 stops
Uncompressed format	RAW	RAW
Optics & Focus	Fujifilm X-S20	Sony a7S 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	759
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 a7S III
Articulated LCD	Fully articulated	Fully articulated
Screen size	3”	3”
Screen dots	1840000	1440000
Touch screen	Yes	Yes
Screen type	TFT LCD	TFT LCD
Live view	Yes	Yes
Viewfinder Type	Electronic	Electronic
Viewfinder Coverage	100%	100%
Viewfinder Magnification	0.93× (0.62× 35mm equiv.)	0.91x
Viewfinder Resolution	2360000	9440000
Photography features	Fujifilm X-S20	Sony a7S 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 a7S III
Video recording	Yes	Yes
Video format	MPEG4 H.264 H.265	MPEG4 H.264 H.265 XAVC-S XAVC-HS
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 a7S III
Memory Card	SD/SDHC	Compact Flash Express SD/SDHC
Connectivity	Fujifilm X-S20	Sony a7S 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 (802.11ac (dual band) + Bluetooth)
Remote Control	Yes (via smartphone and wired remote)	Yes (wireless or smartphone)
GPS	No	No
Body & Dimensions	Fujifilm X-S20	Sony a7S III
Enviromentally sealed	No	Yes
Battery	Battery Pack	Battery Pack
Battery Details	NP-W235	NP-FZ100 lithium-ion battery charger
Battery Life (CIPA)	750 shots	600 shots
Width	127 mm	129 mm
Height	85 mm	97 mm
Depth	65 mm	81 mm
Weight	491 gram	699 gram