Is it too difficult to choose too much? This article helps you to buy the most suitable Android phone!

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#Opening season#Preparing for the opening season! University freshman laptop Raiders ahead long text warning! One may never finish reading. Suggest that you can first point [collection], easy to see next time near the school, there are many prospective newcomers to find me recommend notebook. Thinking about the past few years, helping freshmen choose notebooks has become something I must do every August. There was a lot of contact, and I felt deeply that there were a lot of pits. There are many friends because they do not understand the market. I was pitted when I bought this book, and I had to spend four years with an unsuitable notebook. It is also a very tragic thing. So Go-on| Likes 956 Comments 689 Favorites 3k View Details

Immediately after the MWC 2017 conference, there will be a large number of Android phones that will be released. Before the arrival of a new wave of new machines, here to share my Android mobile phone shopping experience. Because Android phones are fast and expensive, prices are volatile, so this article does not cover phone recommendations. Here we share with you the experience of mobile phone performance, screen, and photographing. I hope to help everyone overcome the difficulty of mobile phone selection.

(The article introduces some gadgets that help people buy mobile phones. We can collect them for use in case of need)


Why is the processor/SoC so important?

Speaking of the mobile phone processor, many people think of the first time is the phone's game performance, running points. But in fact, the impact of mobile phone processors is far more than that. Here I introduce a chestnut:

I got 4 domestic mobile phones here and shot the same flower bed at night. On the camera, all four phones use Sony's photographic elements. The OPPO R9s has the largest f/1.7 aperture in four phones, while vivo has Arcsoft's high-quality image algorithm support. However, due to OPPO and vivo are using the low-end Snapdragon 625 chip, the built-in ISP (image signal processor) processing power is too weak, can not be refined noise reduction processing, can only be a simple and crude painting into oil; In contrast, Meizu and Xiaomi’s screens using high-end chips appear to be easy to use and the details are rich.

It may be that there are value-friends who will ask, what is the relationship between this example and the processor of the mobile phone? In fact, the mobile phone hardware and PC are very different, we often say "mobile phone processor", a more accurate statement should be: SoC (system on a chip). For example, the Snapdragon 821 is an SoC that contains five large components and is a highly integrated chip. High-end processors are not only more powerful, but also often mean better graphics (game) performance, connectivity, and camera performance. This is a good explanation of what the top 10 DxOMark camera scores are all occupied by high performance flagship phones. Because the SoC is the most critical and basic part of the experience of a mobile phone.


How to determine processor/SoC performance?

As mentioned earlier, the SoC of a mobile phone is a highly integrated system. It involves a lot of aspects, it is difficult to judge it with a single standard. However, as a consumer purchase, you can borrow some experience and skills to choose. For example, my personal experience is: The better the GPU performance of a general SoC, the better the overall performance is. Here you can refer to GFXBench (link here):

Taking this map as an example, we can see that the GPU performance of the Adreno 530 (Shaolong 821, 820) is second only to the Apple A9 (iPhone 6s) in the Android camp, compared to the Mali-T880 MP12 (Exynos 8890) and Mali-G71 (unicorn). 960) Be stronger. This ranking is very consistent with my own experience. Speaking off topic, many people mistakenly believe that Apple's fluency depends entirely on optimization and non-reorganization. However, in fact, the performance of each generation of iPhone is much stronger than that of the Android mobile phone in the same period, and the GPU performance is even more difficult. Powerful performance is the fundamental of iPhone's fluency.

After you have determined your purchase budget, you can refer to the GFXBench score or the 3DMark score (linked here) to determine the difference in performance of different models. However, it should be noted that although the SoC plays a key role in the overall mobile phone experience, it is not all mobile phones. Summarized in one sentence: Do not look at SoC certainly not, just look at SoC is also undesirable.


Memory (RAM)? Flash (ROM)?

Due to the inherent deficiencies in the system, coupled with the domestic various "rogue" software, the memory of the uncontrolled use. Therefore, sufficient memory is also the basis for the smooth operation of Android phones.

In addition to almost completely extinct 1G RAM, the current more popular is 2 ~ 6G of memory (8G memory is still relatively rare). The application scenarios of different memory mobile phones are shown above, and everyone can sign up. However, it should be noted that different mobile phone manufacturers use different memory scheduling. For example, Huawei's memory scheduling mechanism is more aggressive and kills processes more frequently. So there will be differences in the specific use.

As for flash memory (or storage), you may be more concerned about the size of the capacity. This is just a matter of choice. On the contrary, the type of flash memory is easily overlooked. At present, the eMMC 5.0/5.1 and UFS 2.0/2.1 flash memory are common in the Android camp, and UFS flash reads and writes much faster than the eMMC. Directly embodied in mobile phones that use UFS flash memory, turning on the application is faster and the game loading time is shorter; the effect is similar to the SSD on a computer. However, UFS flash memory is only present in high-end mobile phones, and low-end mobile phones are still the eMMC world.


How to choose a good screen?

The screen is the most direct interface between smart phones and people. If the impact of SoC on a mobile phone is 50%, then the screen will account for 20%. Although screen quality is everyone's choice hotspot. However, today's prevalence of online shopping, it is too difficult to be "seeing is believing". So here's to recommend a simple and easy to use gadgets - PhoneArena's Display Benchmarks

First open the PhoneArena Benchmarks page (link here), click on Display, then click on Screen Measurements. You can find a lot of mobile phone screen test data (mainstream domestic mobile phone is also included):

However, this tool is only available in English. Here I give you a brief introduction: from left to right, the maximum brightness, minimum brightness, contrast, color temperature, gamma, color deviation, and gray-scale deviation of the phone screen are respectively. Everyone here may still be at a loss: what exactly is good and how bad is it? Don't worry, here's another to give everyone a chestnut:

For example, this Moto X Style is equipped with a 5.7-inch 2K screen. The test results on the PhoneArena screen are as follows:

The following describes the seven screen indicators, if you feel too complicated to skip

Maximum brightness - 715 nits (excellent): As the name implies, it is the maximum brightness that the screen can achieve. This item mainly affects the visibility of the screen when exposed to strong light. According to my testing experience, when the screen brightness is less than 500 nits, it is difficult to see outdoors under sunlight.

Minimum brightness - 1 nit (excellent): The lower the minimum brightness, the more comfortable it is to watch the screen in a dark environment. Generally within 5 nits are good.

Contrast - 1:1072 (Good): This refers to the ratio of the brightness of the black and white display when the screen brightness is fixed at 200 nits. The higher the contrast, the richer the brightness level that the screen can display. PhoneArena is excellent at 1:1200. What is more interesting is that due to the self-luminous nature of AMOLED screens, such screens can display "pure black". So the phone that uses AMOLED screen, in theory, the contrast is infinity, in PhoneArena here will be shown as unmeasurable (can't measure).

Color temperature - 6748K (excellent): here to knock down the blackboard! Many domestic users are very concerned about the "cold and warm screen" problem. The color temperature of the screen is an indicator of the warm and cold of the screen. The higher the color temperature (the larger the number), the more bluish it is, and it is the “cold screen” that everyone says. On the other hand, the lower the color temperature, the yellower the hair color, and it becomes the “warm screen”. At present, 6500K is commonly used as a standard in the professional field (that is, the D65 white point, the color is very close to the natural daylight), and I am also a strong supporter of the D65 white point.

However, many domestic users do not like the D65 white point and think it is yellowish. The previous generations of iPhones were basically based on the 7200K standard. After the iPhone 7 fell back to 6700K, it was immediately said to be a warm screen. Now some evaluation agencies begin to use 7200K as the standard, so how much color temperature should be considered "good"? I am afraid there is no convincing standard. Fortunately, most mobile phones now have color temperature adjustment capabilities that can adapt to different user preferences. However, there is still a hard indicator: if the screen color temperature exceeds 8000K, it indicates that the screen color temperature is seriously high. Long-term use of a high color temperature screen may damage vision; if the system does not have a color temperature adjustment option, it must be carefully considered when purchasing.

Gamma - 2.19: The gamma value is very complicated to explain, and it has a great influence on the screen display. In simple terms, the closer the gamma value is to 2.2, the better it is. It is acceptable between 2.1 and 2.3.

Color deviation - 1.22 (excellent) / gray deviation - 1.81 (excellent): These two items can be combined, said that for the average user, these two may not be so important. But it is important for color-sensitive people such as photographers, designers, and graphic artists. These two items reflect the accuracy of the screen display color/grayscale. The smaller the value, the more accurate the color/grayscale. Generally within 3 is good, and when it is greater than 5, there is a visible color/grayscale deviation.

In summary, for the average user, the primary concern is the screen's maximum brightness, minimum brightness, and color temperature. If there is a higher demand on the screen, consider the remaining four indicators.

It is worth mentioning that the price of mobile phones is often proportional to the quality of the screen. Although it does not mean that high-priced mobile phone screens are certainly good, the screens in the thousand yuan machine are really rare, although there are also a few positive examples. However, the screens of most thousands of machines are not good enough. The most typical is the Charm Blue Note series. The screen is one generation worse than one generation. So if you need a mobile phone with a good screen, the thousand yuan machine is probably not enough for you.


What is a good phone camera?

The camera photographing effect is also a very important point for value-friends. However, how the mobile phone camera is considered "good", including the industry, evaluation agencies have not reached a consensus. Coupled with personal subjective aesthetic differences, this issue becomes more complicated. So here's a simple tool for everyone to recommend: GSMArena Photo Compare Tool | GSMArena Photo Comparison Tool (link here)

The function of this tool is quite complete, including ISO12233 (resolution test), Good light, Low light, unified laboratory shooting conditions can ensure comparability; at the same time can also be the size of one Scaling is useful when comparing phones with different pixels.

GSMArena's sample library data is very large, including mainstream domestic mobile phones, which can compare 3 mobile phones at a time. Want to save time, you can directly compare proofs under low light, after all, the weak light performance can best open the gap between the phones. For example: When you are entangled in the three thousand machines of Charm Blue Note 5, Red Meter Note 4 and Glory Play 5c, you can use this tool to take a look. Here we can see that the dark light performance of these three thousand Yuan machines is not ideal, but the screen brightness, detail, and noise control of the glory play 5c should be strong; and the Red Rice Note4 is the worst among the three. There are intuitive pictures for comparison, making it easier to judge.

In addition, mentioning DxOMark Mobile, I personally do not advocate this as an optional standard. Not to question the professionalism and authority of DxOMark (instead DxOMark has been doing very well in this area), but because DxOMark's scoring models are too small (basic middle and low-end models are blank); in addition DxOMark is very value mobile phone recording And flash performance. However, as far as I know, the usage of these two functions is actually not high; this makes DxOMark's score reference meaningless.


Is the battery big enough to last?

The battery life of smart phones is the pain in many people's minds. In recent years, Android phones have become popular with large batteries. However, there must be a good battery to do it? Not necessarily! Please look at the picture:

In the past year, I tested 10 Android phones. In my 4+8 battery life test, it can be clearly seen that the battery and battery life are not necessarily linked. The most typical is millet 5s, only 3200 mAh battery, ran out of the battery life of Jinli M2017 can call mobile power. The Huawei Mate 9 Pro is another extreme, and the large 4000 mAh battery did not stop it. Of course, this is not to say that a large battery is useless, but a large battery must be combined with reasonable performance scheduling and power management to achieve long battery life.

As an optional reference, here is also recommended from the GSMArena Battery life test / battery life test (link here), this tool is mainly to evaluate mobile phone 3G calls, web browsing, video playback in three aspects of endurance. Although the test items are limited, it is sufficient to assist the purchase. The value of the value of mobile phone life friends, can be used as a reference.


So much faster filling which is better?

After completing the battery life, I must talk about fast charging. At present, there are many fast charging solutions on the market, but all can be attributed to high voltage and low current and low voltage and high current. At this stage, individuals tend to use high-pressure fast-acting camps represented by QC 3.0. After all, compatibility is invincible, and there are a large number of third-party peripherals. However, low-voltage fast charging has a huge performance advantage. The intervention of Google and USB-IF is expected to solve the compatibility problem, so it is very likely to become mainstream in the future.


Which brand of system update is the most effective?

A good system is an important component of the user experience, and it is also one of the manufacturers' core competitiveness. With regard to the pros and cons of the various Android custom systems, careful analysis is another long article. However, as a general user, it is certain that during the entire process of mobile phone use, the mobile phone system can obtain regular updates, add new functions, and resolve bugs in time. Then the question comes: Which mobile phone system updates the most?

In order to answer this question, I counted the system updates of major brands (as of February 2017). Among them, Xiaomi 2 is still unique, and Xiaomi 2 still provides system updates every week after 54 months, even exceeding iPhone 5 and his son Nexus 6. The several new brands of Hammer, LeTV and ZUK have all achieved support and are worthy of praise.

If you use a mobile phone for 18 months, the vendor must provide at least 20 months of updated support. According to this standard, there are still many brands failing. There is a dark history like “vivo” to abandon the “old model”; only five models were added to the full series, but one plus X was stopped in less than a year. Users who care about system updates, brands that don't work well for these updates need careful consideration.


What do I think about when I buy a mobile phone?

As with the previous notebook shopping guide, I think the purchase of mobile phones is also a trade-off and trade-off process, and my thinking is generally like this:

To sum up, it is a sentence: When the budget is determined, priority should be given to meeting just-in-time requirements, while taking into account other factors. With the aforementioned shopping tips, choosing a mobile phone becomes So Easy

Today's Raiders are here. If you have any questions about mobile phone purchase, welcome to communicate with me in the comments. Like my article, don't forget to like it + collect it! With the effect of playing better! We will see you in the next period

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