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[CL] iPhone 5s keeps tracking motion even after the battery drains out

post #1 of 25
Thread Starter 
Quote:
The iPhone 5S didn’t bring a lot of new features, as you’d expect from an S upgrade. But like always, Apple did introduce cutting edge silicon that powers the phone. This time, along with the A7 chipset, we got the M7 motion tracking chipset as well. As the name suggests, this dedicated chipset is there to track the phone’s motion which can then be used in a variety of different apps such as steps counter. But if this redditor’s post is to be believed, your iPhone 5S maybe tracking your motion even when it’s powered off.

Source: Chiploco
post #2 of 25
Doubt it. If that was true they would've marketed the living thing out of it in their initial presentation.
post #3 of 25
Not if the NSA wanted it there wink.gif
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post #4 of 25
It runs on free energy! tongue.gif
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post #5 of 25
If it is true, then Apple has once again given me that warm fuzzy feeling I love so much. axesmiley.png
post #6 of 25
Probably has a small, dedicated battery.
     
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post #7 of 25
Quote:
Originally Posted by xxicrimsonixx View Post

Probably has a small, dedicated battery.

Devices equipped with lithium batteries are shut down and charged up to very conservative levels so they will at least live through a thousand charging cycles. If the consumption is low enough, this motion tracking thing could very well run a few hours off the battery remainders...
   
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post #8 of 25
Quote:
Originally Posted by Artikbot View Post

Devices equipped with lithium batteries are shut down and charged up to very conservative levels so they will at least live through a thousand charging cycles. If the consumption is low enough, this motion tracking thing could very well run a few hours off the battery remainders...

This.

The GPS or w/e tracking sensor is running of the remaining charge, perhaps at a reduced sampling rate (e.g. minutes instead of second(s)).

Now, lets see if the test is repeatable with other iphone 5s (why not other models) and if other manufacturers are not doing the same also biggrin.gif

Maybe this tracking app just "tapped" into the "features" they didn't what us to know about (cause hard to believe no one ever noticed before - step counting apps and motion sensors have been around long enough).
Edited by pcfoo - 3/5/14 at 11:29am
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post #9 of 25
Quote:
Originally Posted by Artikbot View Post

Devices equipped with lithium batteries are shut down and charged up to very conservative levels so they will at least live through a thousand charging cycles. If the consumption is low enough, this motion tracking thing could very well run a few hours off the battery remainders...

Yup, the on-screen battery meters lie to you. Batteries are not technically at 100% or 0% just because the display tells you. They place limits to extend the battery life.
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post #10 of 25
That's pretty useful if you want to turn your phone off and still records your steps. I doubt it does more than that and keeps the GPS on, which uses much more power.
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