Neodymium magnets and ferrite magnets are both types of permanent magnets, but they differ significantly in terms of composition, strength, cost, and applications. Here are the key differences:

Summary:
Neodymium magnets are stronger, more expensive, and suitable for high-performance applications but are less resistant to high temperatures and corrosion.
Ferrite magnets are weaker, cheaper, and more resistant to temperature and corrosion, making them ideal for cost-sensitive and less demanding applications.
The choice between the two depends on the specific requirements of the application, including strength, cost, temperature stability, and environmental conditions.