Questions tagged [accelerometer]

An inbuilt device for measuring acceleration. Used in Apple devices for motion-based input, sensing and device control.

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How does my brand new iPhone have steps activity recorded on it (in the Health app) from a month ago?

I just received a brand new iPhone from Apple.com. It booted up to a fresh "welcome" state, as expected. I did not do any kind of data transfer/import; I set it up as new. And I configured ...
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iPad does not do automatic screen rotation

I've a problem with my iPad. After I updated to the lastest version of iOS the automatic screen rotation doesn't work anymore. I tried to restart my iPad because I supposed that it was only a system ...
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What stops step data from the accelerometers on the phone and watch from doubling up?

We see that the Apple Watch sends step data from its accelerometers to the iPhone 6 (and above) which also has accelerometers. When you walk holding both an (recent) Apple phone and Apple Watch - ...
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Prevent Maps from changing modes of direction

I was riding my bicycle downtown today listening to music and directions from my phone through my headphones. Since I was riding my bike I wanted walking directions but any time I started picking up ...
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iPhone 6S Plus defaults to landscape when unlocked on desk

My iPhone 6S Plus seems to default to showing the landscape home screen if I unlock it while it's sat on a flat surface, i.e. a desk or table. The phone is definitely in portrait mode when I place it ...
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Why Is the Apple Watch Activity App Distance Incorrect by 500m on a 7km Run?

Today, I went for a 7 kilometer run on a course with an established distance. I set the MapMyRun app on my iPhone and the Activity App on my watch to record the run. MapMyRun recorded the distance ...
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How does the iPhone 5 measure elevation?

I use an app called MapMyRun on the iPhone 5. In it is a report that shows elevation changes during the run. Now to my knowledge, the iPhone5 has an accelerometer and GPS+. The iPhone5 has no ...
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Overnight accelerometer usage

I use the Sleep Cycle app almost every night, but am concerned about the "health" of the accelerometer in the phone. For the app to work, I set a time frame for it to wake me up, then I lay it on the ...
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4 votes
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iPad doesn't rotate anymore

My iPad won't rotate the screen anymore when I turn it. It just happend (like all problems of course) without any cause. I've done everything I can think of. Double tap on the Home button, swipe ...
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How precisely can I track distances using the iPhone accelerometer?

Theoretically the accelerometers in the iPhone can be used to track distance using interpolation over time. What is the estimated error for tracking distances between 1 and 10 meters? Is there any ...
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