Android phones - digital compass without magnetic field sensor? : How is it possible, that a Phone have a digital compass but no magnetic field sensor? In the German data speciation below there a tow different sensors magnet field sensor (Magnetfeldsensor) and compass (Digitaler Kompass) listed. The Huawei P9 has a compass but no magnet field sensor. See under “Ortung/Sensoren”.

http://www.sortierbar.de/smartphone/huawei-p9

What is are the differences between this sensor? Can I get from the compass magnet field data?