一隻手機需要多少稀土金屬

???? Average Rare Earth Content in a Smartphone (e.g., iPhone, Samsung Galaxy)

Component	Main Rare Earth Elements	Typical Amount per Phone	Function
Speakers Vibrator (Magnets)	Neodymium (Nd), Praseodymium (Pr), Dysprosium (Dy), Terbium (Tb)	~250350 mg	Strong NdFeB magnets for speakers, microphones, haptic motor
Screen (Display Glass Phosphors)	Yttrium (Y), Europium (Eu), Terbium (Tb)	~2050 mg	Red green phosphors, color brightness
Camera Lenses	Lanthanum (La)	~1030 mg	High-refractive index glass for clear lenses
Battery / Electronics	Cerium (Ce), Lanthanum (La), Neodymium (Nd)	~510 mg	Polishing powders, additives in battery electrodes
Other Sensors Components	Gadolinium (Gd), Erbium (Er), Ytterbium (Yb), Samarium (Sm)	~1020 mg	Optical amplifiers, stabilization, lasers (Face ID, LiDAR)

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?? Total per Smartphone

?? ~0.5 1.0 grams of rare earth metals
?? Equivalent to ~0.6 1.2 grams of rare earth oxides (REO)

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???? Global Context

• There are ~1.4 billion smartphones produced each year.

• That equals roughly 1,0001,500 metric tons of REO used annually in phones alone small compared to EVs or wind turbines, but massive in aggregate.

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???? Summary

Category	Amount	Key REEs
Per phone	0.51.0 g metals	Nd, Pr, Dy, Tb, La, Ce, Y, Eu