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Fujifilm GFX100S vs Sony a7R IV

Storage & Battery

Fujifilm GFX100S


Sony a7R IV

Sony a7R IV
Fujifilm GFX100S
Sony a7R IV
a7R IV
Refers to the year this camera was officially made available for sale.
Announcement Date
Refers to the date the manufacturer publicly announced the upcoming release and general specs of this camera.
January 27, 2021
July 16, 2019
Camera Type
Camera Size
Camera Weight

The Sony a7R IV outperforms the Fujifilm GFX100S with a score of 84/100 compared to 80/100. Both cameras are mirrorless and were released within two years of each other: the GFX100S in 2021 and the a7R IV in 2019. They share similarities in design, but the GFX100S is larger and heavier, measuring 150 x 104 x 87mm and weighing 900g, while the a7R IV is 129 x 96 x 78mm and weighs 665g.

The Fujifilm GFX100S offers superior image quality, thanks to its higher launch price of $5999. However, the Sony a7R IV has a more affordable launch price of $3500, making it an attractive option for budget-conscious photographers.

Taking all factors into account, the Sony a7R IV is the better choice for those seeking a balance between price and performance, while the Fujifilm GFX100S is ideal for professionals who prioritize image quality and are willing to invest in a more expensive camera.

Fujifilm GFX100S vs Sony a7R IV Overview and Optics

The Sony a7R IV outperforms the Fujifilm GFX100S in optics with a score of 85/100, compared to the GFX100S’s 78/100. Both cameras share several common specifications, including a CMOS sensor, image stabilization, and a similar processor (Bionz X for the Sony a7R IV and X-Processor 4 for the GFX100S). Despite these similarities, each camera has its unique strengths and weaknesses.

The Sony a7R IV boasts a higher optics score, mainly due to its faster shooting speed of 10 frames per second, compared to the GFX100S’s 5 frames per second. This makes the Sony a7R IV more suitable for capturing fast-moving subjects. Additionally, the Sony a7R IV has a DXOMARK sensor score of 99, providing a reliable benchmark for its image quality. The GFX100S does not have a DXOMARK score, as DXOMARK does not score Fujifilm cameras.

On the other hand, the Fujifilm GFX100S has a higher megapixel count at 102, compared to the Sony a7R IV’s 61.2. This gives the GFX100S an advantage in capturing more detail and producing larger prints. Furthermore, the GFX100S has a medium format sensor, which generally provides better image quality and dynamic range than the full-frame sensor found in the Sony a7R IV. The GFX100S also has a 4:3 aspect ratio, which can be preferable for certain types of photography.

In comparing the optics of these two cameras, the Sony a7R IV is the winner, offering a faster shooting speed and a proven DXOMARK sensor score. However, the Fujifilm GFX100S has its advantages, such as a higher megapixel count and a medium format sensor. Depending on the specific needs and preferences of the photographer, each camera can provide distinct benefits.

The higher the number of megapixels, the more detail the cameras sensor can capture.
102 MP
61.2 MP
Image Resolution
Image resolution is measured in pixels and megapixels, width by height. The higher the number, the higher its resolution.
11648 x 8736 px
9504 x 6336 px
Sensor Type
The camera sensor captures light and records the image. Sensors vary in physical size, the number of pixels, and quality.
Sensor Size
The sensor size contributes to the overall quality as well as the dynamic and tonal range a camera can capture. As a rule of thumb, the more surface there is to read the light, the more information it will capture.
44 x 33 mm
23.8 x 35.7 mm
Sensor Format
Refers to the most commonly used sensor sizes.
Medium Format
Full Frame
Frame Rate
The number of sequential frames per second the camera can write to the memory card when shooting in burst or continuous mode.
5 fps
10 fps
Lens Mount
The lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras.
Fujifilm G
Sony FE
Image Processor
The image processor in the camera converts the information collected on the sensor for digital storage on the memory card.
X-Processor 4
Bionz X
Aspect Ratio
The aspect ratio refers to the proportional difference between width and height. The most popular aspect ratios are 3:2 and 4:3.
Minimum ISO (Native)
Refers to the lowest native (or 'base') ISO setting. Lower ISO are less sensitive to light but make a cleaner image.
Maximum ISO (Native)
Refers to the highest native (or 'base') ISO setting. Higher ISO is necessary for low-light situations or night photography, but higher ISOs often introduce grain or noise.
Minimum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Maximum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Minimum Shutter Speed
The minimum shutter speed will tell you the longest exposure your camera can take without using an external accessory.
30 s
30 s
Maximum Shutter Speed
The maximum shutter speed tells you the length inside 1 second the camera will capture. These can sometimes be extended with accessories such as extra external batteries.
1/ 4000 s
1/ 8000 s
Autofocus Points
Autofocus points show where the camera is focusing graphically as squares or brackets in Live View or on an electronic viewfinder. These points are also used for light meter readings.
In-body Stabilization
In-body Stabilization means the camera has a certain technology embedded that counteracts camera shake.
Viewfinder Type
The viewfinder type is either electronic or optical. Electronic viewfinders will have a small screen in the viewfinder. Optical viewfinders will use prisms and mirrors to look through the lens.
Viewfinder Resolution
3,690,000 dots
5,760,000 dots

Fujifilm GFX100S vs Sony a7R IV Video Performance

The Fujifilm GFX100S outperforms the Sony a7R IV in video capabilities, with a video score of 83/100 compared to the Sony’s 70/100. Both cameras share some common specifications, such as 4K max video resolution and built-in time-lapse functionality.

The GFX100S surpasses the a7R IV in several aspects. It boasts a higher max video dimension of 4096 x 2160, compared to the a7R IV’s 3840 x 2160. Additionally, the GFX100S offers a max video frame rate of 60fps, which is double the a7R IV’s 30fps. This difference in frame rate allows the GFX100S to capture smoother and more detailed footage, making it a stronger choice for video enthusiasts and professionals alike.

On the other hand, the Sony a7R IV, while scoring lower in video capabilities, still provides respectable performance. It shares the same 4K max video resolution as the GFX100S and has built-in time-lapse functionality. While it may not be as powerful as the GFX100S in terms of video features, it remains a viable option for those who do not require the highest level of video performance.

In comparing the video capabilities of the Fujifilm GFX100S and the Sony a7R IV, the GFX100S emerges as the superior choice due to its higher max video dimensions and faster frame rate. However, the Sony a7R IV still holds its own with a solid 4K video resolution and time-lapse functionality. Ultimately, the decision between the two cameras will depend on the user’s specific needs and preferences in video performance.

Indicates if this camera is capable of recording video.
Max Video Resolution
The best resolution this camera can capture video in. Modern cameras can capture up to 8K video.
Max Video Dimensions
Video resolution measured by the greatest number of pixels possible in each frame, width by height. A higher resolution means more detail or clarity in your video.
4096 x 2160 px
3840 x 2160 px
Max Video Frame Rate
How many frames per second your video will capture. Most cameras have options for multiple frame rates, depending on the resolution you shoot in. For a general video, 24p or 30p is the standard, but more serious filmmakers may need a higher frame rate for creative effect.
60 p
30 p
Time-Lapse Built In
A built in time-lapse mode will allow continuous shooting throughout a prolonged period of time to be compressed into a sped up video.
Video File Format
Different cameras can record in various video file formats. The File format you record in can impact how you edit and use the files.
XAVC S, AVCHD Ver. 2.0, MP4

Fujifilm GFX100S vs Sony a7R IV Features and Benefits

The Fujifilm GFX100S outperforms the Sony a7R IV in features with a score of 87/100 compared to 83/100. Both cameras share several specifications, including a touchscreen, flip screen, absence of GPS, and the presence of WIFI and Bluetooth connectivity.

The Fujifilm GFX100S excels with its larger screen size of 3.2 inches and a higher screen resolution of 2,360,000 dots, providing a clearer and more detailed image preview. This advantage enhances the user experience, especially when composing shots and reviewing images.

On the other hand, the Sony a7R IV holds its ground with a slightly smaller screen size of 3 inches and a lower screen resolution of 1,440,000 dots. While this may be a disadvantage compared to the Fujifilm GFX100S, the Sony a7R IV still offers a high-quality display and a user-friendly interface.

In terms of features, the Fujifilm GFX100S emerges as the superior camera due to its larger screen size and higher screen resolution. The Sony a7R IV, while not as advanced in these aspects, remains a strong contender with its competitive display and shared specifications with the Fujifilm GFX100S.

Ultimately, the choice between these two cameras comes down to individual preference and specific needs. The Fujifilm GFX100S offers a more advanced display, while the Sony a7R IV provides a slightly more compact option with a still impressive display. Both cameras excel in their respective feature sets, making them exceptional choices for any photographer.

Built-in Flash
A built-in flash will often be positioned right above the lens. This will automatically pop up when you activate it.
External Flash
External flashes are often connected through a hot shoe at the top of a camera, or a cable at the side of the camera.
GPS features in a camera will include location metadata to each of your photographs.
Weather Sealing
Weather sealing capabilities will give you more confidence when shooting in unfavourable conditions.
Screen Type
Touch Screen
Touchscreen allows you to change camera settings and access menus with a swipe of your finger, instead of using buttons.
Screen Size
Screen Resolution
Screen dots indicate the resolution of the LCD screen by including each sub pixel.
2,360,000 dots
1,440,000 dots
Flip Screen
A flip screen (or articulating screen) is a second screen which can flip out from the side or top of the camera. This rotating screen allows you more freedom to take photos at different angles.
Live View
Live View feature allows you to see a continuous live video of what is being seen through your lens.
Bluetooth capabilities allow you wireless control of your camera with other external devices.

Fujifilm GFX100S vs Sony a7R IV Storage and Battery

The Sony a7R IV outperforms the Fujifilm GFX100S in storage and battery with a score of 79/100 compared to 73/100. Both cameras share similarities in storage, including two memory card slots and compatibility with SD, SDHC, and SDXC cards (UHS-II compatible). They also both support USB charging.

The Sony a7R IV surpasses the Fujifilm GFX100S in battery life, offering 670 shots per charge compared to the GFX100S’s 480 shots. This advantage allows for extended shooting sessions without needing to replace or recharge the battery.

The Fujifilm GFX100S does not have any advantages in storage and battery over the Sony a7R IV. Its lower battery life is a drawback for those who require longer shooting times.

Considering the storage and battery aspects, the Sony a7R IV is the better choice due to its longer battery life. This feature ensures photographers can capture more images without worrying about battery depletion.

Storage and Battery
Storage and Battery
Memory Card
SD / SDHC / SDXC (UHS-II compatible)
SD / SDHC / SDXC (UHS-II compatible)
Dual Memory Card Slots
Battery Type
Battery Life
Approximately how long this cameras battery will last measured by how many photographs you will be able to take.
480 shots
670 shots
USB Charging
Sensor scores tested by DXOMARK
Overall Score
DXOMARK overall sensor score.
Portrait (Color Depth)
As described by DXOMARK 'The Portrait score in our camera sensor reviews defines color depth performance and its unit is a number of bits. A color depth of 22 bits is excellent; differences below 1 bit are barely noticeable.'
26 bits
Landscape (Dynamic Range)
As described by DXOMARK 'The Landscape score in our camera sensor tests defines the maximum dynamic range of the camera sensor and its unit is an exposure value (EV). A value of 12 EV is excellent with differences below 0.5 EV usually not noticeable.'
14.8 EVs
Sports (Low-Light ISO)
Described by DXOMARK as 'The maximal value of ISO sensitivity needed to reach a given value of Signal-to-Noise Ratio (SNR). The greater the value, the better'

Alternatives to the Fujifilm GFX100S and Sony a7R IV

Fujifilm GFX100S vs Sony a7R IV Comparison image.

Are you still undecided about which camera is right for you? Have a look at these popular comparisons that feature the Fujifilm GFX100S or the Sony a7R IV:

User Scores
B&H photo video
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