Cellulari migliori delliphone 8

See the Highlights and Performance Results section above for a detailed overview with expanded discussions and explanations. See the Display Assessments section for the evaluation details.

Apple iPhone 8 Plus vs Samsung Galaxy S9 Plus

The iPhone X has the following enhanced state-of-the-art display performance functions and features: While the OLED display itself is flexible, the screen remains rigid under an outer hard cover glass. The iPhone X matches or sets new Smartphone display performance records for: See the Display Shoot-Out Comparison Table below for all of the measurements and details, and the Highlights and Performance Results section above for expanded discussions and explanations, and the Display Assessments section for the evaluation details.

Improving the Next Generation of Mobile Displays. The iPhone X has a very high resolution 2. Note that displays are almost never viewed in absolute darkness under perfect viewing conditions with ideal image content. Some clueless reviewers have been pining for 4K x Smartphones, which would require more than triple the pixels, memory, and processing power of the x display on the iPhone X, but there would be no visual benefit for humans!

As a result, it is absolutely pointless to further increase the display resolution and pixels per inch ppi for a marketing wild goose chase into the stratosphere, with no visual benefit for humans! With screen size and resolution already functionally maxed out, manufacturers should instead dedicate their efforts and resources into improving real world display performance in ambient light by using advanced technology to restore and compensate for the loss of color gamut, color saturation, and image contrast due to ambient light, something that every consumer will benefit from, and will also immediately notice and appreciate — providing a true sales and marketing advantage….

The most important improvements for OLED and LCD mobile displays will come from improving their image and picture quality and screen readability in real world ambient light, which washes out the screen images, resulting in reduced image contrast, color saturation, and color accuracy. In our High Picture Quality in Real World Ambient Lighting article we demonstrate that a major advantage of using Dynamic Color Management and Dynamic Intensity Scales rather than the current brute force method of just increasing the Picture Brightness in ambient light is that it can produce the same vibrant on-screen colors in ambient light with 75 percent less display power up through 2, lux, which is very important for TV energy efficiency, and also very important for Smartphones because they depend on limited battery power.

The displays, technologies, and manufacturers that succeed in implementing this new real world high ambient light performance strategy will take the lead in the next generations of mobile displays… Follow DisplayMate on Twitter to learn about these developments and our upcoming display technology coverage.

This article is a lite version of our advanced scientific analysis — before the benefits of our DisplayMate Display Optimization Technology , which can correct or improve all of these issues. If you are a display or product manufacturer and want to significantly improve display performance for a competitive advantage then Contact DisplayMate Technologies. You can directly compare the data and measurement results for the iPhone X with the Galaxy Note8 and iPhone 7 displays.

For each Tab click on a Link below. The entries are mostly identical with only minor formatting differences,. Excluding the Rounded Corners. O rganic L ight E mitting D iode. Diamond Sub-Pixels with Diagonal Symmetry. New Higher Aspect Ratio. Most Smartphones and Widescreen TVs have Height to Width Aspect Ratio. Display Width and Height in inches.

Subtracting the Top Slot area but not the Rounded Corners. A better measure of size than the diagonal length. The iPhone X supports 2 Color Gamuts including. Quad HD can display four x HD images. Total Number of Pixels. Sharpness depends on the viewing distance and PPI. See this on the visual acuity for a true Retina Display. Diamond Sub-Pixel displays have only half the number.

Total Number of Sub-Pixels. At High PPI this is generally not visible due to the. The Typical Viewing Distances for this screen size. Red and Blue color content than White and Green. Typical Viewing Distances are 12 to 18 inches. Photo Viewer Color Depth. Some Smartphones and Tablets still have some. The Apple iPhone X does not have this issue. This section summarizes the results for all of the extensive Lab Measurements and Viewing Tests performed on the display. The iPhone X automatically switches to the appropriate calibrated Gamut for the current on-screen content.

The Viewing Tests examine the accuracy of. Variation with Viewing Angle. The iPhone X display has a relatively small.

Apple iPhone 8 Plus reviewed: The best smartphone camera we’ve ever tested - DxOMark

See the Viewing Angles section for details. Lab Tests and Measurements. Measured over Entire Gamut. See Figure 2 and Colors. Color Errors are Small. Absolute Color Accuracy is measured with a. Spectroradiometer for 41 Reference Colors. See Figure 2 and Colors for details.

See Figure 3 and Contrast. Very Good Contrast Accuracy. The Image Contrast Accuracy is determined by. See Figure 3 and Contrast for details. Performance in Ambient Light. See Brightness and Contrast. Smartphones are seldom used in the dark. Screen Brightness and Reflectance determine. See the Brightness and Contrast section for details. See the Screen Reflections section for details. Image and Picture Quality. Lab Tests and Viewing Tests. The Best Performing Smartphone Display that we have ever tested!!

The iPhone X display delivers excellent. For Viewing Most Content. Photo Video Movie Web. All display screens are mirrors good enough to use for personal grooming — but that is actually a very bad feature…. We measured the light reflected from all directions and also direct mirror specular reflections, which are much more. Many Smartphones still have greater than 10 percent reflections that make the. Hopefully manufacturers will reduce the mirror reflections with anti-reflection coatings and.

We use an Integrating Hemisphere and a highly collimated pencil light beam together with a Spectroradiometer. Note the Screen Reflectance is exactly the same for both Color Gamuts. The iPhone X has one of the lowest Screen Reflectance levels that we have ever measured for a Smartphone. These results are extremely important for screen readability, picture quality, and color accuracy in ambient light. Light From All Directions. Measured using an Integrating Hemisphere and. The lowest value we have ever measured. Percentage of Light Reflected.

These are the most annoying types of Reflections.

Measured using a Spectroradiometer and a narrow. The Contrast Ratio is the specification that gets the most attention, but it only applies for low ambient light, which is seldom. Much more important is the Contrast Rating , which indicates how easy it is to read the screen. The larger the better. Home Screen Peak Brightness. This is the Brightness for typical screen content. This is the Brightness for a screen that is entirely. This is the Peak Brightness for a screen that. The Maximum Brightness is the same. Brightness Slider to Minimum. For Very Low Light. This is the Lowest Brightness with the Slider set to.

This is useful for working in very dark. A new color filter, deeper pixels and an improved Apple-designed image signal processor delivers advanced pixel processing, wide color capture, faster autofocus in low light and better HDR photos. A new quad LED True Tone Flash offers twice the uniformity of light and includes Slow Sync, resulting in more uniformly lit backgrounds and foregrounds. The cameras on iPhone X are custom tuned for the ultimate AR experience. Each camera is individually calibrated, with new gyroscopes and accelerometers for accurate motion tracking.

The A11 Bionic CPU handles world tracking, scene recognition and the GPU enables incredible graphics at 60fps, while the image signal processor does real-time lighting estimation. With ARKit, iOS developers can take advantage of the TrueDepth camera and the rear cameras to create games and apps offering fantastically immersive and fluid experiences that go far beyond the screen.

The new camera also delivers the highest quality video capture ever in a smartphone, with better video stabilization, 4K video up to 60fps and p slo-mo up to fps. The Apple-designed video encoder provides real-time image and motion analysis for optimal quality video.

Why is Apple iPhone 8 Plus better than Samsung Galaxy S9 Plus?

Portrait mode with Portrait Lighting on both the front and rear cameras brings dramatic studio lighting effects to iPhone and allows customers to capture stunning portraits with a shallow depth-of-field effect in five different lighting styles. Animoji Brings Emoji to Life. The TrueDepth camera brings emoji to life in a fun new way with Animoji. Working with A11 Bionic, the TrueDepth camera captures and analyzes over 50 different facial muscle movements, then animates those expressions in a dozen different Animoji, including a panda, unicorn and robot. Available as an iMessage app pre-installed on iPhone X, customers can record and send Animoji messages with their voice that can smile, frown and more.

A11 Bionic, the most powerful and smartest chip ever in a smartphone, features a six-core CPU design with two performance cores that are 25 percent faster and four efficiency cores that are 70 percent faster than the A10 Fusion, offering industry-leading performance and energy efficiency. A new, second-generation performance controller can harness all six cores simultaneously, delivering up to 70 percent greater performance for multi-threaded workloads, giving customers more power while lasting two hours longer than iPhone 7.

The 8 Plus does an excellent job of accurately calculating exposure, improving on the performance of the iPhone 7 family. Its ability to represent high-contrast scenes is also improved, probably at least in part due to additional processing power and improved software for combining multiple frames into a single image. The 8 Plus also does an unusually good job at recognizing and properly exposing faces in an image. This HDR scene tests the boundaries of what a mobile device camera can capture.

The 8 Plus does an excellent job of keeping the highlights visible while still showing detail in the shaded foliage in the foreground. Color is pleasing both outside and indoors. White balance is also quite good. The 8 Plus improves slightly over the iPhone 8 in its color performance by completely avoiding visible color shading , even in low-light conditions. Color saturation in iPhone 8 Plus images remains very good, even under low-light conditions.

However, in low light and in typical indoor tungsten light, 8 Plus images pick up a noticeable color cast that you can see in this chart of test sample patches:. A note on color white balance evaluation: Apple has clearly made a choice to provide a slightly warmer white balance than Google for some situations. Both versions are pleasing, so which you prefer is a matter of taste.

In the case of our color scoring system, we allow for a slight variation in color from what is perfectly accurate to accommodate some style choices on the part of camera makers. In both our long- and short-delay tests, the 8 Plus was able to repeatably capture an in-focus scene. The sometimes longer delay — which occurred periodically in both bright and low light — can mean that users miss the shot they intended. The 8 Plus does an excellent job of capturing detail under a wide variety of lighting conditions, especially when there is no motion in the scene.

That makes it especially good for landscape images.

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There is a noticeable loss of detail when there is motion, especially in low-light — as you can see in this chart of detail preservation versus light level:. It is easy to forget how far smartphone cameras have come in just a few years.

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These tight crops of an area in our standard natural test scene demonstrate how much more detail the iPhone 8 Plus captures than previous generations of iPhones:. The images were all taken under very-low light 5 Lux handheld conditions, showing the improvement in detail preservation and noise suppression in successive iPhone models. Similar to its detail score, the 8 Plus features a very low level of noise when capturing static scenes, outperforming every other phone in our database. Even the darkest areas in HDR scenes have very low levels of noise, and blue skies are almost without noise.

There is some slight luminance noise indoors and in very low light, but well within acceptable limits. In this indoor test target scene, for example, the 8 Plus is a little further off in exposure than the Google Pixel, but has lower noise:. This next comparison image is another that shows how quickly smartphone camera technology is advancing.

This image was shot with the iPhone 7 Plus and the 8 Plus, both in Portrait mode. Interestingly, the iPhone 8 outscores the 8 Plus in this area. Some visible ghosting can also occur. Flash-only photos with the iPhone 8 Plus feature accurate white balance and good color rendering.