Joke Collection Website - Public benefit messages - What's the difference between a special card for 4G Internet of Things and an ordinary card?

What's the difference between a special card for 4G Internet of Things and an ordinary card?

1. In terms of materials, due to the complex use environment of IOT cards, the materials used need corrosion resistance and high temperature resistance. Ordinary cards have lower requirements.

2. IOT cards can only use traffic, and can't make phone calls and send text messages.

3. The Internet of Things card traffic package fee will be much lower.