Why Do Cell Phones Have Magnetometer?

Smartphones come equipped with a magnetometer so that your phone can sense its orientation in space, and use basic apps like the Compass App to determine your location with respect to Magnetic North (or South!). The way this is done is through an internal chip that contains a 3-axis magnetometer.

Why do phones have magnetometer?

Most modern smartphones and tablets are equipped with magnetic sensors, also called magnetometers. ... Normally, they are used to estimate the orientation of the device relative to earth's magnetic north and in this way act as digital compasses, e.g., to show the user's current direction in navigation applications. ...

Why do we use magnetometer?

Magnetometers are widely used for measuring the Earth's magnetic field, in geophysical surveys, to detect magnetic anomalies of various types, and to determine the dipole moment of magnetic materials. In an aircraft's attitude and heading reference system, they are commonly used as a heading reference.