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Oppo Find X7 Ultra
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Oppo Find X7 Ultra Display test

OTHER AVAILABLE TESTS FOR THIS DEVICE

We put the Oppo Find X7 Ultra through our rigorous DXOMARK Display test suite to measure its performance across four criteria. In this test results, we will break down how it fared in a variety of tests and several common use cases.

Overview

Key display specifications

  • 6.82 inches LTPO AMOLED
  • Dimensions: 164.3 x 76.2 x 9.5 mm (6.47 x 3.00 x 0.37 inches)
  • Resolution: 1440 x 3168 pixels, (~510 ppi density)
  • Refresh rate: 120 Hz

Scoring

Sub-scores and attributes included in the calculations of the global score.

Oppo Find X7 Ultra Oppo Find X7 Ultra
144
display
150

164

164

165

120

163

161

164

Eye Comfort Label & Attributes

Eye Comfort
<10%
Flicker perception probability
% of population
1.57
Minimum Brightness
in nits
0.63
Circadian Action Factor
 
99%
Color
Consistency
vs Display-P3 color space

Pros

  • Good color rendering in every lighting condition
  • Well-managed brightness levels in every use case
  • Smooth display in all use cases

Cons

  • Lack of brightness when watching HDR10 videos
  • Lack of contrast when watching HDR10 videos

The Oppo Find X7 Ultra’s display overall score was supported by the device’s strong results in the color and touch attributes, which helped to counter a middling video score.  The device showed good color rendering in every use case tested, and the device’s screen smoothness was evident in all the use cases.

Oppo’s latest flagship made a slight improvement over previous Oppo models, despite the screen’s slightly low brightness. However, screen brightness in sunlight was close in performance to other ultra-premium devices.

The lack of brightness affected the video-watching experience, making it uncomfortable to watch HDR10 content  because dark tones were hard to see. As a result, it will be necessary for most users to adjust  the device luminance manually.

The OPPO Find X7 Ultra is the first device to receive the DXOMARK Eye Comfort Label after having passed all four key criteria: temporal light modulation, brightness level, blue light filtering, and color consistency.

Our measurements showed that the device was essentially free of flicker, with a 10% chance of the user perceiving any brightness abnormalities. Manual adjustment of the display luminance can go as low as 1.5 nits, which is low enough even for the most sensitive eyes under dark room conditions. Our testers particularly appreciated the blue-light filtering performance in the device’s “Bedtime Mode,” which efficiently, and continuously, adapted the blue-light filtering to the time of day. The device’s circadian action factor, which indicates the level of disturbance induced by artificial lighting on human sleep cycle, reached an impressive 0.63, below DXOMARK’s already challenging recommended maximum threshold of 0.65. And when it came to color accuracy, the device was able to maintain almost all of its P3 color gamut with the blue-light filter mode activated.

Test summary

About DXOMARK Display tests: For scoring and analysis, a device undergoes a series of objective and perceptual tests in controlled lab and real-life conditions. The DXOMARK Display score takes into account the overall user experience the screen provides, considering the hardware capacity and the software tuning. In testing, only factory-installed video and photo apps are used.  More in-depth details about how DXOMARK tests displays are available in the article “A closer look at DXOMARK Display testing.”

The following section focuses on the key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Full reports with detailed performance evaluations are available upon request. To order a copy, please contact us.

Readability

150

Oppo Find X7 Ultra

164

Samsung Galaxy S24 Ultra
How Display Readability score is composed

Readability evaluates the user’s ease and comfort of viewing still content, such as photos or a web page, on the display under different lighting conditions. Our measurements run in the labs are completed by perceptual testing and analysis.

Luminance under various lighting conditions
This graph shows the screen luminance in environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Contrast under various lighting conditions
This graph shows the screen’s contrast levels in lighting environments that range from total darkness to outdoor conditions. In our labs, the indoor environment (250 lux to 830 lux) simulates the artificial and natural lighting conditions commonly seen in homes (with medium diffusion); the outdoor environment (from 20,000 lux) replicates a situation with highly diffused light.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Photo EOTF
The Electro-Optical Transfer Function (EOTF) defines how bits are converted into luminance out of the display. Gray levels (horizontal axis) represent the different shades from pure white (100% gray level) to pitch black (0% gray level). The standard for still images follows a 2.2 gamma. The flatter the curves, the harder it is to perceive differences between consecutive shades. This phenomenon is more frequent under intensive lighting conditions (20,000 lux) in the low gray level regions.
Luminance vs Viewing Angle
This graph presents how the luminance drops as viewing angles increase.


Skin-tone rendering in an indoor (1000 lux) environment
From left to right: Oppo Find X7 Ultra, Samsung Galaxy S24 Ultra, Apple iPhone 15 Pro Max
(Photos for illustration only)


Skin-tone rendering in a sunlight (>90 000 lux) environment
From left to right: Oppo Find X7 Ultra, Samsung Galaxy S24 Ultra, Apple iPhone 15 Pro Max
(Photos for illustration only)
Average Reflectance (SCI) Oppo Find X7 Ultra
4.5 %
Low
Good
Bad
High
Oppo Find X7 Ultra
Samsung Galaxy S24 Ultra
Apple iPhone 15 Pro Max
SCI stands for Specular Component Included, which measures both the diffuse reflection and the specular reflection. Reflection from a simple glass sheet is around 4%, while it reaches about 6% for a plastic sheet. Although smartphones’ first surface is made of glass, their total reflection (without coating) is usually around 5% due to multiple reflections created by the complex optical stack.
Average reflectance is computed based on the spectral reflectance in the visible spectrum range (see graph below) and human spectral sensitivity.
Reflectance (SCI)
Wavelength (horizontal axis) defines light color, but also our capacity to see it; for example, UV is a very low wavelength that the human eye cannot see; Infrared is a high wavelength that the human eye also cannot see). White light is composed of all wavelengths between 400 nm and 700 nm, i.e. the range the human eye can see. Measurements above show the reflection of the devices within the visible spectrum range (400 nm to 700 nm).

Uniformity

This graph shows the distribution of luminance throughout the entire display panel. Uniformity is measured with a 20% gray pattern, with bright green indicating ideal luminance. An evenly spread-out bright green color on the screen indicates that the display’s brightness is uniform. Other colors indicate a loss of uniformity.
PWM Frequency Oppo Find X7 Ultra
No flicker
Bad
Good
Bad
Great
Oppo Find X7 Ultra
Samsung Galaxy S24 Ultra
Apple iPhone 15 Pro Max
Displays flicker for 2 main reasons: refresh rate and Pulse Width Modulation. Pulse width modulation is a modulation technique that generates variable-width pulses to represent the amplitude of an analog input signal. This measurement is important for comfort because flickering at low frequencies can be perceived by some individuals, and in the most extreme cases, can induce seizures. Some experiments show that discomfort can appear at a higher frequency. A high PWM frequency (>1500 Hz) tends to be less disturbing for users.
Temporal Light Modulation
This graph represents the frequencies of lighting variation; the highest peak gives the most important modulation. The combination of a low frequency and a high peak is susceptible to inducing eye fatigue.

Color

164

Oppo Find X7 Ultra

165

Google Pixel 8
How Display Color score is composed

Color evaluations are performed in different lighting conditions to see how well the device manages color with the surrounding environment. Devices are tested with sRGB and Display-P3 image patterns. Both faithful mode and default mode are used for our evaluation. Our measurements run in the labs are completed by perceptual testing & analysis.

White point color under D65 illuminant at 830 lux