How to display all kind of app notifications from my phone on Mi Band 9?

In the era of smartphones, it is more important than ever to have a watch. Nowadays, people can use their Mi Band 9 to show any kind of app notifications. We can use a watch as a second screen for our phone and receive all notifications on our wrist.
The good news is that on Notify app you can enable all app notifications at once, without selecting each app manually. You will be able to see all your messages, emails, and social media updates right on your wrist!