Why can't a smartphone live for 3 years?

I have previously reported Apple's spring presentation, high-profile display of his iPhone dismantling robot Liam. Recently, Apple has also branded the trademark "green day" to promote "Earth Day". Interestingly, however, there is a question and answer section on their environmentally friendly page. The media found out that Apple made it clear that everyone's computers can only be used for 4 years, while iOS devices can only be used for 3 years. As a result, the media has been talking about the life of smart phones.

More than 20,000 yuan mobile phone, hanged in 3 years

When the average Android user is still uncomfortable because the phone can be upgraded, iOS users often struggle to upgrade. As everyone knows, the iPhone has always had an urban legend that can't be confirmed: every time Apple updates the system, it intentionally slows down your device so that you can buy their new device. Therefore, the usable life of iOS devices has always been a very sensitive issue.

Now, Apple officials themselves publicly stated:

We use typical products in an analogy environment to estimate the usage scenarios of typical users. The daily usage of each product mixes the data of real users and typical users. We assume that each of the first-handed OS X and tvOS products can be used for 4 years, while the iOS and WatchOS products can be used for 3 years.

When you buy a 16GB iPhone 6s with a lifespan of only 3 years for $26,720, it costs about 8,906 yuan per year, and then spends 24.4 yuan a day. When we spend a lot of money to buy an iPhone, we always want to use it. It’s a long time, the sea is dry, and you don’t want to be slaughtered by Apple every year. But why does Apple now say that your iPhone can only be used for 3 years? Is it because it will explode automatically after 3 years? Will it break automatically? Apple did not explain in detail.

Ok, if I can't bear it, can I keep it for more than 3 years?

Endurance may be the first problem

If the iPhone really only lasts for 3 years, the biggest cause may be the battery.

The lithium-ion battery (Li-on) used in general smart phones (below) will have a longer life span; each charge cycle will shorten its life to some extent. According to Apple's official statement, the iPhone 6s' battery can retain up to 80% of the initial battery capacity after 500 full charge loops, which is about 0.04% less for each charge loop. Suppose everyone is a heavy user, and on average, a charging loop is required every day. After 3 years, your iPhone has only 56.2% of the power left; and this is assuming that everyone is well-maintained. After 3 years of use, most smart phones have only half the endurance; I own a first generation of iPhone 10 years ago, even if the power is full every time, but it can only last for 15 minutes.

As we all know, the endurance of smart phones is generally not enough, and it is even harder to make a battery less than 50%. However, the iPhone's problem is more complicated: it uses a built-in battery for the sake of thinness, so even though the battery is really bad, we can't replace the battery ourselves. Of course, the problem of endurance is not unsolvable: At present, Apple's official battery repair price is about 588 yuan (if you don't mind being slaughtered more than one knife), or long-term use of mobile power to continue life...

Do you want to upgrade? Do not upgrade the line?

Suppose you don't mind walking with the mobile power supply and insisting on not changing the iPhone. Then another problem is still to be solved: Do you want to upgrade?

Every time an iOS upgrade, there are often problems such as slowing down the phone and causing Kaka (below). As an old user of the iPhone, my experience is that the new iPhone can at least perform a big upgrade "safely" (for example, after the iPhone 6 updates iOS 9, the experience will not deteriorate), but the second big upgrade (such as iPhone 5s) Updating iOS 9) will be greatly affected; after the third update (for example, iPhone 5 updates iOS 9), the experience will drop dramatically. Although Apple will abandon the dazzling functions of many new systems every time in order to relocate the old iPhone, it is still annoying to upgrade the operating system for the iPhone.

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