We put the honor 400 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
- 6.55 inches AMOLED (~ 90.9% screen-body ratio)
- Dimensions: 156.5 x 74.6 x 7.3 mm (6.16 x 2.94 x 0.29 inches)
- Resolution: 1200 x 2664 pixels, (~ 446 density PPI)
- Properties: 20: 9
- Find updating: 120 Hz
Pros
- Reinfitting of the pleasant and accurate color in most of the conditions tested
- Effective temporal light management thanks to high frequency PWM
- Good brightness and retention of details when watching HDR videos in environments in low light conditions
Against
- Insufficient screen brightness for comfortable external use
- Reduced smoothness of sliding during web navigation
- Frequent frame drops during playing 60 FPS videos
With a score of 149, Honor 400 offered solidly solid performance, which are distinguished in particular in the precision of color and in the readability of the screen. However, its video reproduction and the reactivity of the touch have left room for improvement.
The screen was easy to read in internal environments, but fought outdoors due to the limited brightness. The competing devices offer much brighter display and the peak brightness of the device was measured at 1278 CD/m², relatively low for its category. In a positive note, the device manages the screen well, using a high frequency PWM (modulation of the width of the impulse) at 3848Hz, which is generally more comfortable for the eyes.
The reproduction of the color was a strong point, with natural colors and accurate in all lighting conditions. In addition, color movement is well controlled when the device is displayed at the corner.
Video performances have been mixed. HDR videos seemed good in poor brightness environments, with brightness and well -managed details. However, in regular internal lighting, the screen seemed weak. In addition, the reproduction of 60 FPS video showed drops of frequent and evident frames, which have negatively influenced the visualization experience.
As for touch performance, although Honor 400 supports a update frequency at 120Hz, its default setting limits the web navigation to 90Hz, leading to a remarkably less fluid and reactive touch experience.
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
Legability evaluates the ease and comfort of the user to view the still content, such as photos or a web page, on the display in 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: Honor 400, Xiaomi Redmi Note 14 Pro Plus 5G, Samsung Galaxy A56 5G, Google Pixel 9a
(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.
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 circadian action factor implies that light has a weak blue light energy and it 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 the high left: Honor 400, Xiaomi Redmi Note 14 Pro Plus 5G, Samsung Galaxy A56 5G, Google Pixel 9a
(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 navigation and regular from one image to another).
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