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  1. #1


    Member Since
    Aug 07, 2010
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    28
    Compass accuracy
    How accurate is the iPhone compass? It varies by about 20 - 30 degrees from my ABC watch compass. Trying to figure out which is more reliable.

  2. #2

    mgsfan18's Avatar
    Member Since
    Nov 21, 2008
    Location
    Canada
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    Specs:
    2.66 GHz Intel Core 2 duo processor 4 GB of memory 300 GB HD imac, 8GB Ipod Touch 4th generation
    A digital compass is never going to be as accurate as a real compass. I would compare them to a real compass and I would also calibrate your iphone compass and your watch compass (if possible).
    A man who is not one for words once told me...

  3. #3


    Member Since
    Aug 07, 2010
    Posts
    28
    By calibrate compass on iPhone, you means th figure 8 move, or some other calibration?

    Thanks for reply

  4. #4

    mgsfan18's Avatar
    Member Since
    Nov 21, 2008
    Location
    Canada
    Posts
    433
    Specs:
    2.66 GHz Intel Core 2 duo processor 4 GB of memory 300 GB HD imac, 8GB Ipod Touch 4th generation
    yeah the figure 8
    A man who is not one for words once told me...

  5. #5


    Member Since
    Aug 07, 2010
    Posts
    28
    Based on good advice from both Suunto and Apple sites, the
    compasses on my ABC watch and iPhone 4 are spot on, allowing for minor jitter
    and human misalignment during the test. The keys are to calibrate each compass
    and then compare on the same bearing but separate the two so they do not
    interfere with each other.

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