N early every modern cellphone has a built-in compass, or magnetometer, that detects the direction of Earth's magnetic field, providing critical information for navigation. Now a team of ...

Your iPhone's compass is a feature you may not know about, but it can save your life. However, you'll need to calibrate it before tis first use.

Now think of a digital compass. They work by measuring the pull ... you might use an accelerometer to compensate for a tilted magnetometer. The process involves taking measurements from both ...

Your iPhone's compass uses a magnetometer, one of the many sensors found on smartphones, to detect magnetic fields and determine direction. Electronic devices, metal objects, magnetic accessories ...