Last Updated & Fact Checked: March 21, 2026
Are you trying to decide between the Sony a7S III and the Sony FX3?
Product Versus will provide you with all the product details so you can quickly compare the facts to find which product is right for you – the Sony a7S III or the Sony FX3 – and find out exactly what the differences are.
Both the Sony a7S III and the Sony FX3 are quality products, so read on to find out which one is best for your needs!
Sony a7S III quick facts
Sony FX3 quick facts
Sony a7S III product details
Bestseller No. 1
Sony NEW Alpha 7S III Full-frame Interchangeable Lens Mirrorless Camera
- 12.1MP1 Exmor R sensor, optimized for 4K, sensitivity and speed.Bluetooth : version 5.0
- New BIONZ XR processing engine delivers 8x more processing power2
- Low noise images with ISO up to 409,6003 and 15 plus stop dynamic range4
- Up to 4K 120p5 10-bit 4:2:2 and full pixel readout in all rec. modes
- Up to 4K 120p5 in XAVC S (AVC), XAVC HS (HEVC) and XAVC S-I (All-I)
Bestseller No. 2
Sony Alpha 7S III Full-frame Interchangeable Lens Mirrorless Camera (Renewed)
- 12.1MP1 Exmor R sensor, optimized for 4K, sensitivity and speed
- New BIONZ XR processing engine delivers 8x more processing power2
- Low noise images w/ ISO up to 409,6003 and 15+stop dynamic range4
- Up to 4K 120p5 10-bit 4:2:2 and full pixel readout in all rec. modes
- Up to 4K 120p5 in XAVC S (AVC), XAVC HS (HEVC) and XAVC S-I (All-I)
Bestseller No. 3
Sony ILCE-7M3K/B a7 III 24.2MP Full Frame Mirrorless Camera w 28-70mm Lens
- Advanced 24.2MP BSI Full-frame Image Sensor w/ 1.8X readout speed Advanced 24.2MP Back-Illuminated 35mm Full-frame Image Sensor
- 15-stop dynamic range, 14-bit uncompressed RAW, ISO 50 to 204,800
- Up to 10fps Silent or Mechanical Shutter with AE/AF tracking
- 693 phase-detection / 425 contrast AF points w/ 93% image coverage
- In the box: SEL2870 lens, Lens hood, Lens cap, Lens rear cap, Rechargeable Battery (NP-FZ100), AC Adapter (AC-UUD12), Shoulder strap, Body cap, Accessory shoe cap, Eyepiece cup, Micro USB cable
Sony FX3 product details
Bestseller No. 1
Sony Alpha FX3 | ILME-FX3A | Full-Frame Cinema Line Camera, Gray/Black
- 4K full-frame sensor w/ 15+ stop dynamic range and high sensitivity
- S-Cinetone for expressive cinematic look inspired by VENICE colorimetry
- Up to 4K 120p 10-bit 4:2:2 and full pixel readout in all recording modes
- Compact cage free design w/ ¼”-20 mounting points and XLR top handle
- Uninterrupted 4K 60p recording with inbody cooling fan
Bestseller No. 2
Sony FX3 Full-Frame Cinema Line Camera with Sony FE 24-70mm f/2.8 GM II Lens, Bundle with, Sony Tough 160GB CFexpress Type A Memory Card for Digital Video (3 Items)
- SONY FX3 CAMERA INCLUDES: Sony FX3 Full-Frame Cinema Line Camera | Sony FE 24-70mm f/2.8 GM II Lens | Lexar Professional 128GB Memory Card
- Sony FX3: A versatile cinema camera with a full-frame sensor, perfect for professional filmmakers and content creators.
- Impressive low-light capabilities with ISO up to 409600 and 15+ stops of dynamic range, ensuring stunning image quality.
- Cinematic 4K resolution, precise autofocus, 10-bit S-Log, HDR recording, and 16-bit RAW output for exceptional creative control.
- Cinematic 4K resolution, precise autofocus, 10-bit S-Log, HDR recording, and 16-bit RAW output for exceptional creative control.
Bestseller No. 3
Sony Alpha FX3 ILME-FX3 | Full-frame Cinema Line Camera
- 4K full-frame sensor w/ 15+ stop dynamic range and high sensitivity
- S-Cinetone for expressive cinematic look inspired by VENICE colorimetry
- Up to 4K 120p 10-bit 4:2:2 and full pixel readout in all recording modes
- Compact cage free design w/ ¼”-20 mounting points and XLR top handle
- Uninterrupted 4K 60p recording with inbody cooling fan
New products & alternatives to the Sony a7S III and the Sony FX3
New
Sony a7S III Mirrorless Camera + Sony GP-VPT3 Wireless Shooting Grip + 256 GB Memory Card+ 2pc Extra Battery + More (28pc Bundle)
- This camera bundled comes with manufacturer in box accessories as well as bundled accessories. The camera comes with a Sony 1-Year Manufacturer Warranty
- Sony a7S III Mirrorless Camera: 12MP Full-Frame Exmor R BSI CMOS Sensor, UHD 4K 120p Video, 10-Bit 4:2:2 Internal, 16-Bit Raw Output, HLG & S-Cinetone., 759-Point Fast Hybrid AF, 9.44m-Dot QXGA OLED EVF, 3.0" 1.44m-Dot Vari-Angle Touchscreen, 5-Axis SteadyShot Image Stabilization, Extended ISO 40-409600, 10 fps Shooting, Dual CFexpress Type A/SD Card Slots.
- Sony GP-VPT3 Wireless Shooting Grip with Detachable Remote: Wireless Control with Detachable Remote, 33' Wireless Camera Control Range, Converts to Tabletop Tripod, Integrated Shutter/Record Button, Zoom/Focus Button, Customizable C1, AF ON/OFF Buttons, +80°/-90° Tilting & 360° Rotating Head, Camera Attaches via 1/4"-20 Mount, Weather-Sealed Construction.
- Optimized video, optimized sensitivity, optimized speed, the Sony a7S III raises the bar for what a full-frame mirrorless camera is capable of. A revised 12.1MP Exmor R BSI CMOS sensor and updated BIONZ XR image processor offer faster performance, improved noise reduction, and a wider dynamic range, along with UHD 4K 120p video recording and internal 10-bit 4:2:2 sampling.
- A redesigned 12.1MP full-frame CMOS sensor now features a back-illuminated Exmor RS design in order to achieve improved clarity and reduced noise along with the expectedly impressive sensitivity, from ISO 80-102400 with an extended ISO 40-409600 range. The updated sensor design also yields 2x faster readout speeds than previous generations.
New
Sony a7S III Mirrorless Camera + Sony GP-VPT3 Wireless Shooting Grip + 160 GB CFexpress Type A Memory Card + 2pc Extra Battery + More (28pc Bundle)
- This camera bundled comes with manufacturer in box accessories as well as bundled accessories. The camera comes with a Sony 1-Year Manufacturer Warranty
- Sony a7S III Mirrorless Camera: 12MP Full-Frame Exmor R BSI CMOS Sensor, UHD 4K 120p Video, 10-Bit 4:2:2 Internal, 16-Bit Raw Output, HLG & S-Cinetone., 759-Point Fast Hybrid AF, 9.44m-Dot QXGA OLED EVF, 3.0" 1.44m-Dot Vari-Angle Touchscreen, 5-Axis SteadyShot Image Stabilization, Extended ISO 40-409600, 10 fps Shooting, Dual CFexpress Type A/SD Card Slots.
- Sony GP-VPT3 Wireless Shooting Grip with Detachable Remote: Wireless Control with Detachable Remote, 33' Wireless Camera Control Range, Converts to Tabletop Tripod, Integrated Shutter/Record Button, Zoom/Focus Button, Customizable C1, AF ON/OFF Buttons, +80°/-90° Tilting & 360° Rotating Head, Camera Attaches via 1/4"-20 Mount, Weather-Sealed Construction.
- Optimized video, optimized sensitivity, optimized speed, the Sony a7S III raises the bar for what a full-frame mirrorless camera is capable of. A revised 12.1MP Exmor R BSI CMOS sensor and updated BIONZ XR image processor offer faster performance, improved noise reduction, and a wider dynamic range, along with UHD 4K 120p video recording and internal 10-bit 4:2:2 sampling.
- A redesigned 12.1MP full-frame CMOS sensor now features a back-illuminated Exmor RS design in order to achieve improved clarity and reduced noise along with the expectedly impressive sensitivity, from ISO 80-102400 with an extended ISO 40-409600 range. The updated sensor design also yields 2x faster readout speeds than previous generations.
New
Sony a6400 Mirrorless Camera with 16-50mm f/3.5-5.6 II Lens (Silver) (ILCE6400L/S) + DJI Wireless Mic 2 + Monitor + Pro Headphones + Tripod + Photo Software + 2 x 64GB Memory Card + More
- Items Include: Sony a6400 Mirrorless Camera with 16-50mm f/3.5-5.6 II Lens (Silver), DJI Mic 2 2-Person Digital Wireless Microphone System, Lilliput A7S 7" Full HD Monitor, Sony MDR-7506 Professional Stereo Headphones, Professional Camera Tripod, Photography Software, 2 x 64GB Extreme PRO UHS-I SDXC Memory Card, 2 x NP-FW50 Replacement , LED Video Light, Padded Camera Bag, NP-FW50 Charger, 3 Piece 40.5mm Filter Kit, Flexible Tripod, Deluxe Cleaning Kit, HDMI Micro Cable, Camera Hand Strap + M
- Exceptional Image Quality with 24.2MP Sensor and Advanced Processing: The Sony a6400 features a 24.2MP APS-C Exmor CMOS sensor paired with the powerful BIONZ X processor to deliver sharp, vibrant images with minimal noise, even in low-light conditions. This combination enables high-speed continuous shooting at up to 11 fps with autofocus, ensuring you never miss the perfect shot. Its exceptional dynamic range and high ISO performance make it ideal for both everyday moments and challenging shoo
- 4K Video Recording with Professional Features: Capture stunning 4K video with full sensor width recording, oversampled for added detail. The Sony a6400 supports UHD 4K in XAVC S format at up to 30 fps, offering superior image quality with no pixel binning. With advanced color controls, including S-Log2 and S-Log3 for dynamic range, and the ability to output clean 4K via HDMI, it’s the perfect tool for creators who demand cinematic video results. You can even produce 8MP stills directly from 4K
- Fast, Accurate Autofocus with 425 Phase-Detection Points: The a6400’s 4D FOCUS system, with 425 phase-detection and 425 contrast-detection points, ensures fast and precise autofocus in just 0.02 seconds. High-density Tracking AF keeps up with moving subjects, while Real-Time Eye AF offers pinpoint focus on human and animal eyes for perfect portraits, even during video recording. This comprehensive AF system enhances both stills and video, making it a versatile choice for dynamic and unpredicta
- Compact Design with Versatile Connectivity for On-the-Go Use: With its compact design and versatile features, the Sony a6400 is built to capture life’s moments, no matter where you are. The 180° tiltable LCD touchscreen enables easy selfies and vlogging, while built-in Wi-Fi and Bluetooth allow for quick sharing and remote control via your mobile device. Plus, the long-lasting battery and USB charging capabilities ensure you’re always ready, whether you’re shooting in the field or on the move.
New
Sony a6400 Mirrorless Camera with 16-50mm f/3.5-5.6 II Lens (Silver) (ILCE6400L/S) + DJI Wireless Mic 2 2 + Monitor + Pro Headphones + Tripod + Photo Software + 2 x 64GB Memory Card + More
- Sony USA Authorized. Items Include: Sony a6400 Mirrorless Camera with 16-50mm f/3.5-5.6 II Lens (Silver), DJI Mic 2 2-Person Digital Wireless Microphone System, Lilliput A7S 7" Full HD Monitor, Sony MDR-7506 Professional Stereo Headphones, Professional Camera Tripod, Photography Software, 2 x 64GB Extreme PRO UHS-I SDXC Memory Card, 2 x NP-FW50 Replacement , LED Video Light, Padded Camera Bag, NP-FW50 Charger, 3 Piece 40.5mm Filter Kit, Flexible Tripod, Deluxe Cleaning Kit, HDMI Micro Cable,
- Stunning Image Clarity with a 24.2MP Sensor and Enhanced Processing: The Sony a6400 is equipped with a 24.2MP APS-C Exmor CMOS sensor and the advanced BIONZ X processor, providing sharp and vibrant images with low noise, even in challenging lighting conditions. This powerful duo enables high-speed continuous shooting at up to 11 fps with precise autofocus, ensuring you capture every moment flawlessly. With impressive dynamic range and exceptional high ISO performance, the a6400 is perfect for
- Professional-Grade 4K Video Recording: The Sony a6400 delivers breathtaking 4K video with full sensor width capture and oversampling for exceptional detail and clarity. Supporting UHD 4K in XAVC S format at up to 30 fps, it ensures superior image quality without pixel binning. Advanced color profiles, including S-Log2 and S-Log3, provide enhanced dynamic range for cinematic results, while clean 4K output via HDMI offers flexibility for creators. Additionally, you can extract high-quality 8MP s
- Lightning-Fast Autofocus with 425 Phase-Detection Points: The Sony a6400's 4D FOCUS system features 425 phase-detection and 425 contrast-detection points, achieving incredibly fast and accurate autofocus in just 0.02 seconds. The High-density Tracking AF seamlessly locks onto moving subjects, while Real-Time Eye AF ensures sharp focus on human and animal eyes, even during video recording. This advanced autofocus system enhances both photo and video capabilities, making the a6400 an ideal choic
- Portable Design with Flexible Connectivity for Life on the Move: The Sony a6400's compact and lightweight build makes it perfect for capturing moments anywhere. Its 180° tiltable LCD touchscreen is ideal for selfies and vlogging, while built-in Wi-Fi and Bluetooth enable seamless sharing and remote control via your smartphone. With a long-lasting battery and convenient USB charging, the a6400 ensures you're always ready to shoot, whether exploring the city or venturing into the wild.
New
Sony a7 V Mirrorless Camera Bundle with Corel Photo Software Bundle + 128GB Memory Card + Extra Sony Battery + Memory Card Reader + Cleaning Kit + Camera Bag + Cleaning Cloth (11 Items)
- A partially stacked Exmor RS CMOS image sensor features high-speed circuitry above and below the sensing layer. Sensor readout is approx. 4.5 x*1 faster than the α7 IV, maximum shutter speed is 1/16000 s, *2 blackout-free bursts at up to 30 fps are available with AF/AE tracking, *3 and video can be recorded at 4K 120p.*4 This advanced sensor contributes up to an unprecedented 16 stops of dynamic range*5 with smooth gradations.
- The new BIONZ XR2 processing engine delivers dramatic improvements in image and sound quality, communication, integration, and operation. It also incorporates AI-based Real-time Recognition AF and*6 Real-time Tracking, *7 plus accurate, stable color reproduction. A lightweight RAW format has been included, while user interface, networking, and file management functions have been refined for smooth workflow.
- The new 33.0-megapixel*8 sensor and BIONZ XR2 processing engine work together to deliver up to 16 stops of dynamic range. *9 Lifelike gradations from shadows to highlights enable highly effective HDR processing when needed, and effective noise reduction applied at all sensitivities achieves high resolution throughout the ISO 100-51200 still and movie range (expandable to 50-204800 for stills and 100-102400 for movies).
- An advanced optical stabilization unit, gyro sensors, and algorithm accurately detect and correct image shake. Up to 7.5-step central and 6.5-step peripheral stabilization*14 allows handheld shooting without having to boost sensitivity. The body also works with compatible lenses*15 for even better stabilization. Even shake that is amplified at telephoto focal lengths is effectively suppressed.
- AI processing in the new BIONZ XR2 processing engine improves recognition by approximately 30% over the α7 IV. Human pose estimation technology uses detailed form and pose data to achieve reliable human eye recognition as well as accurate recognition of body and head position, even with challenging subjects. Multiple subjects can also be recognized, making it possible to track the desired subject.
Our conclusion on the Sony a7S III vs Sony FX3
Both the Sony a7S III and the Sony FX3 are high quality products and we are sure you will be happy with either one. In the end it comes down to your budget and the value for money you are looking for.
Either way, the Sony a7S III and the Sony FX3 are both excellent products that will more than do their job!