Comparison of WhatsApp and WhatsApp Business API

Let's compare two ways of working with WhatsApp. Advantages and disadvantages:
WhatsApp Business API
You can freely write to the client first.
To write to the client first or write him 24 hours after the last conversation is possible only with a paid template message (HSM). The cost is about €0.07 per one started dialog.
You can send any content (that does not violate the law)
Templates for such HSM messages must be pre-approved
Message throughput: No more than 5-20 messages per minute and no more than 6,000 messages per day
Message throughput: Up to 600 messages per minute and up to 36,000 messages per hour
Physically, you need a smartphone with a fast Internet connection all the time.
A physical smartphone is not necessary.
Standard blocking algorithms
It's almost impossible to get a lockout
Works with any existing personal or service number
Only works with new numbers