The apple magnetic case has no effect on the mobile phone, and the chargers may be magnetic wireless chargers in the future, if it has an impact, it will not be invented.
When using a mobile phone, the mobile phone speaker itself is magnetic, often placed in the magnetic field will interfere with each other, and the mobile phone signal also has an impact, because the signal reception is an electromagnetic field, and the small magnetic field of the magnet will more or less interfere with the mobile phone signal flag.
At present, most mobile phone devices in the market, there will be a number of very small but play an important role in the magnet, in daily use, the external role of the magnet is a static magnetic field, not an alternating magnetic field, therefore, does not produce electromagnetic fields, the function of the use of mobile phones has little impact.