What's the difference between IOT card and ordinary sim card?

The main difference between IOT card and personal mobile phone SIM/UIM card lies in the different business application scope. IOT card is used to support the networking of hardware systems in industrial, agricultural, logistics, transportation, security, medical care, home, power grid and other professional fields. Ordinary mobile phone cards are personal businesses. Then there is the difference in charging methods mentioned upstairs. Of course, IOT cards can also be used on mobile phones. I do this. You can trust me in private.