is phone compass magnetic or true

The truth is that phone compasses do operate by using magnetic sensors, but they are designed to provide true readings.

Magnetic sensors are responsible for detecting the Earth's magnetic field, which is used to determine the phone's orientation. However, these sensors can be influenced by other magnetic fields, such as those produced by electronic devices and metals. This is why many phone compass apps will ask the user to calibrate the phone by moving it in a specific way, in order to eliminate any interference.

Once calibrated, the compass should provide an accurate reading of true north. It is important to note, however, that phone compasses may not be as reliable as traditional compasses in certain situations, such as when the phone is near metal objects or in areas with significant magnetic interference.

Despite their limitations, phone compasses are still a useful tool for navigation and orientation. They can provide a quick and easy way to determine which direction to head in, and are particularly useful for urban hiking or city exploration. Many outdoor enthusiasts also use phone compasses as a backup to traditional compasses, or as a way to quickly check their bearings.