iPhone 5S battery deplete after can still track the user dynamic

Recently Glarznak Reddit members in a post revealed a very terrible thing, even if the battery has run out of equipment in the shutdown state can still track the users of the iPhone 5S. On Monday night to release the post he has recently been on a business trip in the process of charging line the destruction, but he is not in the local purchase cable will have the iPhone without electricity in the package for travel for four days. In later he returned home to recharge after phone should find third-party fitness application under the complete record of the four days of this trip.

Users post described how a few days ago, his recent travel abroad, mobile phone data line is broken, the iPhone 5S power thoroughly exhausted and automatically shut down. He has been to use Argus application (a health tracking application) statistical habit of his mobile number, because the application based on the iPhone built-in M7 chip. His return at the end of the trip, he to recharge your iPhone 5S and surprised to find that Argus application can complete record in the case of mobile phone battery is he these days mobile pace, also means that iPhone coprocessor M7 movement in can still function properly without electricity.

Apple cable stopped working so 5S is in a state of completely without power. After I often use Argus to track my steps, but when I got home I found a surprising thing that the iPhone is the Argus still shows me this four days completely without electricity conditions steps of travel. This is so unbelievable, and even made me feel a little scared. "

As we all know, the iPhone 5s equipped with M7 chip consumes minimal power requirements, and low battery automatically shut down when the iPhone remained little battery power is also a fundamental sense, because it requires a reminder for low-power/recharge display.

Users LakeSolon pointed out in reply, M7 as a single chip, the data processing carried out by him without waking the CPU to reduce battery consumption, this feature is in fact iPhone 5s conference speech already explained clearly. But it is not clear that the phone refused to boot after you if it can still continue to work, considering the iPhone because it still can not boot to display images "out of battery", which for low-power features still need to run normally situation should be a perfectly reasonable design.

Apple did not explicitly pointed out that the function can still can continue to run after equipment shutdown. Therefore, the real question becomes "under the condition of boot or shutdown, the user how to ensure the M7 can track their movement" come to a complete stop. After all, some people know their mobile phone in the case of without permission has been tracking individual whereabouts, may make them feel uneasy.