Fujifilm X Series X-T20 vs. Sony Alpha7s III ILCE-7SM3

Camera Comparison, Reviews and Tests

In depth comparison and review of Fujifilm X Series X-T20 and Sony Alpha7s III ILCE-7SM3. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.

Camera Specifications Comparison

Fujifilm X Series X-T20 vs. Sony Alpha7s III ILCE-7SM3 Comparison Chart
DESIGN AND DIMENSIONS Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Product Type Digital camera - 4K - mirrorless system Digital camera - 4K - mirrorless system
Lens Included Body only Body only
Height 8.28 cm 9.69 cm
Width 11.84 cm 12.89 cm
Depth 4.14 cm 8.08 cm
Weight 333 g 699 g
Weight Details Camera body only: 333 g
Camera with battery and memory card: 383 g
Camera with battery and memory card: 699 g
Body Material - Magnesium alloy
Enclosure Colour Silver | Black -
Protection - Dust-resistant, moisture-resistant
Digital Zoom - 4x
SENSOR Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Sensor Resolution 24.3 Megapixel 12.1 Megapixel
Optical Sensor Type X-Trans CMOS III Exmor R CMOS
Total Pixels - 12,900,000 pixels
Effective Sensor Resolution 24,300,000 pixels 12,100,000 pixels
Optical Sensor Size APS-C (23.6 x 15.6 mm) Full Frame (35.6 x 23.8 mm)
Frame Rate (Max Resolution) 30 fps 120 fps
Sensor Dust Reduction - Yes
Sensor Features - Dust Reduction (image sensor vibration), Anti-Dust coating
Image Stabiliser - Optical (5-axis Steady Shot)
Built-in Optical Image Stabiliser - Yes
Sensors - Digital level metre
PROCESSOR Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Image Processor X-Processor Pro engine BIONZ XR
LENS Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Lens Mounting Type Fujifilm X Mount Sony E-mount
FOCUSING Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Auto Focus TTL contrast and phase detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 325 759
Auto Focus Features Focus Peaking function Focus Peaking function, Predictive Focus Control
AE/AF Control Face-priority AF, Subject-tracking AF, Eye detection AF, Zone AF Flex Focus Point, Face-priority AF, Subject-tracking AF, Eye detection AF
Face Detection Eye Detect AF, face-priority AF function Face Recognition, face-priority AF function
VIEWFINDER Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Viewfinder Type Electronic - OLED Built-in - electronic
Viewfinder Colour Support Colour Colour
Viewfinder Diagonal Size 0.39" 0.64"
Viewfinder Resolution 2,360,000 pixels 9,437,184 pixels
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 0.62x 0.9x
Optical Viewfinder Dioptric Correction Range -4 to +2 -4 to +3
Features Auto eye sensor -
EXPOSURE & WHITE BALANCE Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
ISO (Max) 51200 409600
Native ISO 200-12800 -
Extended ISO (Max) 25600 (H1), 51200 (H2) 409600
Extended ISO (Min) 100 40
Light Sensitivity ISO 100, ISO auto, ISO 200-12800, ISO 51200, ISO 25600 ISO 204800, ISO 409600, ISO 80-102400, ISO 40
Exposure Metering Multi-segment, centre-weighted, spot, average Multi-segment, centre-weighted, spot
Exposure Metering Zones 256 1200
Exposure Modes Bulb, automatic, manual, aperture-priority, shutter-priority Bulb, automatic, manual, aperture-priority, shutter-priority
Bracketing Modes Dynamic Range Bracketing, Film Simulation Bracketing, ISO sensitivity bracketing, white balance bracketing Dynamic Range Bracketing
Special Effects Sepia, Black & White Red filter, Black & White Yellow filter, soft focus, Black & White Green filter, miniature, Film Simulation, partial colour, Toy camera, High Key, Low Key, Pop Colour, Dynamic tone -
White Balance Custom, automatic, presets Custom, automatic, presets
White Balance Presets Incandescent, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater Incandescent, fluorescent, cloudy, Flash, daylight, shade, Underwater, 2500K - 9900K
Shutter Type Mechanical Mechanical electronically-controlled
Max Shutter Speed 1/32000 sec 1/8000 sec
Min Shutter Speed 30 sec 30 sec
Exposure Compensation ±5 EV range, in 1/3 EV steps ±5 EV range, in 1/2 or 1/3 EV steps
Auto Exposure Bracketing - 3, 5 or 9 steps
White Balance Bracketing Yes -
X-sync Speed 1/180 sec 1/250sec
Exposure Range - EV -3-20 (ISO 100)
DISPLAY Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Type 3" LCD display 3" LCD display
Touch Screen Yes Yes
Display Format 1,040,000 pixels 1,440,000 pixels
Display Form Factor Folding Folding
Display Features - Display brightness control
FLASH Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Camera Flash Pop-up flash -
Guide Number (m / ISO 100) 7 -
Flash Modes Rear curtain sync, slow synchro, auto mode, flash OFF mode -
VIDEOGRAPHY / CAMCORDER Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Digital Video Format H.264, MOV H.264, XAVC S, H.265, XAVC HS
Image Recording Format JPEG, RAW, RAW + JPEG JPEG, RAW, RAW + JPEG
Max Video Resolution 3840 x 2160 3840 x 2160
Audio Signal Format - AAC
Microphone Operation Mode Stereo Stereo
MEMORY Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Memory Card Slot SD card Dual SD card, dual CFexpress
Supported Memory Cards SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card, CFexpress
Memory Card Included No No
Memory Card Max Supported Size 256 GB -
Image Storage 6000 x 4000
6000 x 3376
4000 x 4000
4240 x 2832
4240 x 2384
2832 x 2832
3008 x 2000
3008 x 1688
2000 x 2000
JPEG 4240 x 2832
JPEG 2768 x 1848
JPEG 2128 x 1416
JPEG 1376 x 920
JPEG 3776 x 2832
JPEG 2464 x 1848
JPEG 1888 x 1416
JPEG 1232 x 920
JPEG 4240 x 2348
JPEG 2768 x 1550
JPEG 2128 x 1200
JPEG 1376 x 776
JPEG 2832 x 2832
JPEG 1840 x 1840
JPEG 1408 x 1408
JPEG 912 x 912
Video Capture H.264 - 3840 x 2160 p - 100Mbps
H.264 - 1920 x 1080 p - 36Mbps
H.264 - 1280 x 720 p - 18Mbps
XAVC HS - 3840 x 2160 p - 120 fps
XAVC HS - 3840 x 2160 p - 60 fps
XAVC HS - 3840 x 2160 p - 100 fps - 200Mbps
XAVC HS - 3840 x 2160 p - 50 fps
XAVC HS - 3840 x 2160 p - 24 fps
XAVC S - 3840 x 2160 p - 120 fps
XAVC S - 3840 x 2160 p - 60 fps
XAVC S - 3840 x 2160 p - 30 fps
XAVC S - 3840 x 2160 p - 24 fps
XAVC S - 3840 x 2160 p - 100 fps
XAVC S - 3840 x 2160 p - 50 fps
XAVC S - 3840 x 2160 p - 25 fps
XAVC S HD - 1920 x 1080 p - 120 fps
XAVC S HD - 1920 x 1080 p - 60 fps
XAVC S HD - 1920 x 1080 p - 30 fps
XAVC S HD - 1920 x 1080 p - 24 fps
XAVC S HD - 1920 x 1080 p - 100 fps
XAVC S HD - 1920 x 1080 p - 50 fps
XAVC S HD - 1920 x 1080 p - 25 fps
BATTERY AND CHARGING Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Battery Type Fujifilm NP-W126S Lithium Ion Sony NP-FZ100 Lithium Ion
Details Fujifilm NP-W126S Li-ion rechargeable battery (included) Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included)
Battery Life Photo shooting - 350 shots (LCD Monitor on)
Video recording - 1.6 hours (Full HD resolution)
Video recording - 1.2 hours (4K resolution)
Photo shooting - 510 shots (EVF on)
Photo shooting - 600 shots (LCD Monitor on)
Video recording - 80 minutes (EVF on)
Video recording - 135 minutes (LCD Monitor on)
CONNECTIONS Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Interface HDMI, USB 2.0, IEEE 802.11b/g/n HDMI, USB-C, Wireless LAN, NFC (Near Field Communication), Bluetooth 5.0
Connectivity Features Remote control via mobile devices, remote live view, Wireless Image Transfer Remote control via mobile devices, Wireless Image Transfer, PC Remote functions via Wi-Fi
Print Standard Exif Print support Exif Print support, PRINT Image Matching
Flash Terminal Hot shoe Hot shoe
Connector Type USB 2.0 (5 pin Micro-USB Type B)
HDMI output (19 pin micro HDMI Type D)
Microphone (sub-mini phone stereo 2.5 mm)
USB (USB Type-C)
HDMI output (19 pin HDMI Type A)
Microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
FEATURES Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Self-Timer Delay 10 sec, 2sec 10 sec, 2sec, 5 sec
Continuous Shooting Speed 4 frames per second, 8 frames per second, 3 frames per second, 5 frames per second, 11 frames per second, 14 frames per second 8 frames per second, 3 frames per second, 10 frames per second, 6 frames per second
Additional Features Built-in speaker, auto power save, digital image rotation, camera orientation detection, histogram display, in-camera red-eye removal, cropping an image, resizing an image, Automatic Scene Recognition (SR Auto), interval shooting mode, in-camera RAW processing, Panorama Capture, primary colour filter, Photobook assist Built-in speaker, digital image rotation, camera orientation detection, histogram display, shadow point display, interval shooting mode, highlight point display, Dynamic Range Optimizer, USB charging, built-in help guide, Chromatic Aberration Compensation (CAC), HDR image enhancement technology, Intelligent AUTO (iAUTO), fast motion recording, Lens Distortion Compensation (LDC), noise reduction over long exposures, high ISO speed noise reduction, silent shooting, BRAVIA Sync function, PhotoTV HD, GPS via mobile, slow motion recording, peripheral shading correction, anti-flicker, Hybrid Log-Gamma (HLG) recording
OTHERS Fujifilm X Series X-T20 Sony Alpha7s III ILCE-7SM3
Included Accessories Battery charger, body cap, shoulder strap, protective cover, strap clip, clip attaching tool -
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature 0 °C 0 °C
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