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Does the compass in a phone work by magnetism or GPS?

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GPS signals are very noisy, and don't work particularly well for applications like a compass unless you're moving further than the noise (which is typically several meters). If you've ever stood in one place and plotted a GPS signal this is obviou... read more

GPS signals are very noisy, and don't work particularly well for applications like a compass unless you're moving further than the noise (which is typically several meters). read more

We all know that the function of compass is to give right direction with respect to the north-south pole of earth by use of magnetism. But due to interference in communication, smartphone does not use the magnet as one of the component in compass sensor but it uses new technology which does the same work as conventional compass does. read more

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