First spotted by SamMobile, the support page says that "certain features, like step counting, may not work properly if you're holding a magnet or a magnetic object in the hand wearing the ring ...

In a Permanent Magnet (PM) AC car motor, NdFeB magnets are often embedded in the rotor. When wire windings in the stator are electrified, the magnetic attraction causes the rotor to rotate.

Automakers' first choice of magnet, the NdFeB, excels in this situation—but it also has one downside: operating temperature. Once NdFeB magnets surpass 80 degrees Celsius (176 degrees Fahrenheit ...

Neodymium-iron-boron (NdFeB) magnets are the world’s most powerful and efficient permanent magnets. They are an indispensable component found in the electric motors and generators that power ...