Advantages of the WhatsApp Business API

Chat API	Business API
The ability to ban numbers from WhatsApp if our recommendations for safe operation are violated.	Ban in exceptional cases. First of all, a drop in the rating of the number or a restriction in the use of individual template messages.
You have to depend on your phone connection.	It does not depend on the local connection of the phone.
The only way to add contacts on your phone is manual.	Automatic ability to add and delete contacts.
No verified badge (green check mark).	A business account can receive a verified icon of the Official Business Account (green check mark), for this you need to submit an application to Facebook.
It depends on the period of use of the account. At the beginning, we recommend sending no more than 5-20 messages per minute.	High scalability: by default, 10 messages per second. As the number rating increases, the number of messages sent per second will increase.
Your phone must have a stable internet connection.	There is no such need