It is Apple's habit to hide many secret features when new devices are released or new systems are launched. Recently, Apple had to admit that the iPhone XS and iPhone XS Max had problems, and then it fixed these problems, on top of which is the issue of not charging in sleep mode. And before the days we mentioned in Top StoriesThe results of battery tests compared to the Samsung Note 9 and the first test result came that the Note 9 defeated the iPhone XS by a large and clear difference, and in the next paragraph immediately came the second test in which the iPhone XS defeated both the Note 9 and the Pixel 3. Here comes the question: How This happened? Is one of these tests fabricated, or are both correct?

The famous site PhoneBuff, with the help of Android devices, conducted experiments on the iPhone XS, and it was found that the battery performance of these phones is very weak, even the largest version "Max" compared to the latest Samsung Note 9 phones. The site stated that the XS Max, which is the most expensive smartphone in the world, did not Its battery can compete with the Note 9, which is 35% better than the XS. And it must be remembered that the main reason is most likely because the Note battery is significantly larger than Apple, which added a 3174 mAh battery compared to 4000 mAh.
In the test, the temperature was controlled, and the screen brightness in both phones was turned on by default, and the volume was calibrated to be equal in both phones as well. In addition, the entire test was performed using a robotic arm that uses the same pattern of clicks on the screen, and running Applications, Navigation via Phone Calls, Messages, Web Browsing, Social Media, Video and Game Quizzes.
In short, this is the closest thing to a real test of battery life in the real world. You can watch the video.
Ultimately, the iPhone XS Max's battery life is very short compared to the Note 9, and since the iPhone XS has less battery life than the XS Max, the new Apple devices lack competition, and there is no way to bridge this gap even by updating the operating system.
And previous tests and reviews were carried out by Tomsguide, and it was discovered that the iPhone XS battery is smaller than the iPhone X battery, and the results are as follows:

This test came in 150nits brightness and in 4G internet surfing mode. So it seems that what Apple has done is a clear mistake by maintaining the thickness of the phone and not increasing the battery.

How to outperform the iPhone in another test?
And in an exciting shift, around which many question marks have been raised, another test was conducted by YouTuber Mrwhosetheboss that proved that the battery life of the iPhone XS Max has outperformed both the Note 9 and the Pixel 3. Watch the video:
In order to answer the secret of how Nott excelled in the first test and failed in the second one must know the "test conditions", which are:
◉ First test: Tested using the same default settings on both phones, with no change, except for one difference, which is the screen resolution. The default screen resolution of the Note 9 is 1920 * 1080, compared to the screen resolution of the iPhone XS Max, which is 2688 * 1242, meaning that the Apple screen runs a number of pixels greater than 61% of what the Note runs, thus the Note 9 surpasses the iPhone because of the savings In screen resolution, I need less power, while the iPhone XS Max is running at maximum power.
◉ The second testThe exact opposite happened: the smartphones were running on the same applications that were used in the first test that PhoneBuff used, but this time, he set the Note 9 screen to its highest resolution of 2960 * 1440 and the same pixel resolution, meaning they were run with a larger pixel number of 27.6% Who does the iPhone run? Accordingly, the results outweigh the iPhone. The iPhone worked for 376 minutes, compared to 364 minutes for the Note 8 and Google Pixel XL, with 319 minutes.
What do tests mean and why does pixel count affect?
Many of us turn off Bluetooth to reduce battery consumption or Wi-Fi, but actually these things are not the ones that consume energy, as most of us 50% or more are consumed by the screen (in traditional conditions). Here comes the role of the number of pixels. In short, it means that the image presented in front of you is divided into a certain number of pixels. The higher the number of pixels, the more energy the phone consumes, whether the processor for work or the lighting itself, the energy that the device needs to operate and light up 2 million pixels is less than running 4 million pixels.
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In the case of the iPhone XS Max and Note 9, the Note comes with a larger battery 26%. When they did a test in which he ran 2 million pixels versus 3.3 million on the iPhone, the result was impressive. And the nut has approximately 34%. But in the second test, when it was running in full quality, that is, the note ran 4.26 million pixels against the same 3.3 million, so the result was that the iPhone outperformed a difference of 12 minutes and the iPhone was only 3%, almost no difference. By calculating the percentages, the Google phone is running 27.6% larger pixels and has a 26% larger battery, and here we will see that the result is logical.
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