Compass.trueHeading

Description

The heading in degrees relative to the geographic North Pole. (Read Only)

The value in this property is always measured relative to the top of the screen in its current orientation. Note, that if you want this property to contain a valid value, you must also enable location updates by calling Input.location.Start(). (Read Only)

using UnityEngine;

public class Example : MonoBehaviour
{
    void Update()
    {
        // Orient an object to point northward.
        transform.rotation = Quaternion.Euler(0, -Input.compass.trueHeading, 0);
    }
}