We put the Samsung Galaxy S25 Ultra through our rigorous DXOMark display test suite to measure its performance on four criteria. In these test results, we will break down the way it went to a variety of tests and several cases of common use.
Panoramic
Keys display specifications
- 6.9 inches AMOLED 2X
- Dimensions: 162.8 x 77.6 x 8.2 mm (6.41 x 3.06 x 0.32 inches)
- Resolution: 1440 x 3120 pixels, (~ 498 ppi density)
- Properties: 19.5: 9
- Find updating: 120 Hz
Pros
- Excellent outdoor readability, thanks to the high luminance of peak and low reflection
- Good video experience in poor lighting and internal conditions
- Regular touch interaction in any case of use
Against
- The adjustment of the brightness level is not adapted to the environments of low light and dark
- Bad management of involuntary touches
The Samsung Galaxy S25 Ultra has achieved the best score in our display protocol ranking, showing strong improvements in videos and colors, as well as a strong experience of readability.
The Samsung Galaxy S25 Ultra continues to be among the best devices for readability. With its anti -reflective coating and impressive luminance, the device remains in our database that brings the best experience of readability during the outdoor part. In our tests in the sunlight, the device has reached a measured peak brightness of 2,600 nit, similar to the Ultra S24. Although it offered excellent outdoor experience and good indoor results, the display was slightly too bright in low light conditions.
The Galaxy S25 Ultra showed the greatest improvements in color performance than its predecessor. In faithful mode, color rendering had good precision. Our testers have also observed less color changes on the display when the device was displayed at an angle compared to the Ultra S24, adding to the good overall performance of the color. While our tests showed that the management of the blue light of Galaxy S25 Ultra had been slightly optimized, the device still showed a high level of emission when the night mode was activated, partly due to the high luminance. This made the device not admissible for our eye comfort label.
On video, S25 Ultra is at the top of our database, which shows strong improvements compared to the Ultra S24. The brightness has been adapted very well in all environments, in particular in low light conditions, where its predecessor has not been short. The device now has a luminance of 24 HDR luminance in low light conditions, a much more adapted level than the 80 nit of its predecessor, which was too bright to be considered comfortable for the eyes. The local contrasts were well adapted both for environments in low light conditions and interior. In video reproduction, the flagship device managed the non -corresponding frames very well and did not show the drops of frame.
The touch performance of the device were a good overall experience when navigating the web or examined the gallery, but the display occasionally showed involuntary touches. The performance of the touch reactivity of the display were below those of the direct competitors of the device in the ultra-premium segment.
Test summary
DXOMark display test information: For the score and analysis, a device undergoes a series of objective and perceptive tests in controlled laboratory conditions and real life. The Dxomark Display score takes into account the overall user experience provided by the screen, considering the hardware capacity and the software developed. In the tests, only video apps and photos installed in the factory are used. More in -depth details on how Dxomark tests are available in the article “A more attentive look at DXOMark display tests”.
The following section focuses on the key elements of our tests and exhaustive analysis performed in the DXOMark workshops. Complete relationships with detailed performance assessments are available on request. To order a copy, contact us.
As is composed as the readability score of the display
Readability evaluates the ease and comfort of the user to view content, such as photos or a web page, on the display under different lighting conditions. Our measurements performed in the workshops are completed through perceptual tests and analysis.
Rendering of the skin tone in an internal environment (1000 lux)
From left to right: Samsung Galaxy S25 Ultra, Apple iPhone 16 Pro Max, Google Pixel 9 Pro, Honor Magic7 Pro
(Photo only for illustration)
Skin rendering in a sunlight (> 90,000 lux)
From left to right: Samsung Galaxy S25 Ultra, Apple iPhone 16 Pro Max, Google Pixel 9 Pro, Honor Magic7 Pro
(Photo only for illustration)
Ski stands for the mirror component included, which measures both the widespread reflection and mirror reflection. The reflection of a simple glass sheet is about 4%, while reaching about 6% for a plastic sheet. Although the first surface of the smartphones is made of glass, their total reflection (without coating) is usually about 5% due to more reflections created by the optical stack complex.
The average reflectance is calculated on the basis of the spectral reflectance in the visible spectrum interval (see graphic graphic) and the human spectral sensitivity.
Uniformity
This graph shows the distribution of the luminance during the entire display panel. The uniformity is measured with a 20%gray motif, with brilliant green that indicates ideal luminance. A bright green color evenly scattered on the screen indicates that the brightness of the display is uniform. Other colors indicate a loss of uniformity.
View the flicker for 2 main reasons: update and modulation speed of the width of the impulse. Modulation of the width of the impulse is a modulation technique that generates variable width impulses to represent the breadth of an analog input signal. This measurement is important for comfort because low frequencies can be perceived by some individuals and, in the most extreme cases, can induce convulsions. Some experiments show that the discomfort may appear at a higher frequency. A high PWM frequency (> 1500 Hz) tends to be less disturbing for users.
How the display of the display color is composed
Color assessments are performed in different lighting conditions to see how well the device well manages the color with the surrounding environment. The devices are tested with SRGB image schemes and display-p3. Both faithful mode and default mode are used for our evaluation. Our measurements performed in the workshops are completed through perceptual tests and analysis.
The circadian action factor is a metric that defines how light affects the cycle of human sleep. It is the relationship between the energy of light that contributes to sleep disorders (centered around 450 Nm, which represents blue light) on the energy of light which contributes to our perception (which covers from 400 Nm to 700 Nm and centered on 550 Nm, which is green light). A high circadian action factor means that environmental light contains strong blue light energy and it is likely that it influences the body’s sleep cycle, while a low matter of circadian action implies that light has a weak blue light energy and is less likely to influence sleep models.
How it is composed how to view the video score
The video attribute evaluates the video handling of the standard dynamic range (DSD) and the dynamic range (HDR10) in internal and poor lighting conditions. Our measurements performed in the workshops are completed through perceptual tests and analysis.
Video rendering in an environment in low light conditions (0 lux)
Clockwise from on the top left: Samsung Galaxy S25 Ultra, Apple iPhone 16 Pro Max, Google Pixel 9 Pro, Honor Magic7 Pro,
(Photo only for illustration)
These calibers have the percentage of irregularities of the frame in a 30 second video. These irregularities are not necessarily perceived by users (unless they are all in the same TimesTamp) but are a performance indicator.
How the display of the display touch is composed
We evaluate the touch attributes in many types of content in which the touch is the key and requires different behaviors such as the game (quick touch to the response time), web (regular scrolling of the page) and images (accurate and regular navigation from an image to the other).
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