We can add the contacts on the Xiaomi smartphone to different groups, which allows us to send group messages. We can assign a different ringtone to each group so that we can tell from the ringing which one is calling, whether it's friends or work, for example. When creating a new group, we're asked if we want to save it locally only or sync it to our Google Account.

Android 10 (MIUI 12.0)
Step 1:  Open the  Contacts app
Step 2:  Tap on  My groups
Step 3:  Tap on  Add
Step 4:  Choose an  account
Step 5:  Enter a name and tap  OK
  1. Open the Contacts app
  2. Tap on My groups
  3. Tap on Add
  4. Choose an account
  5. Enter a name and tap OK

Xiaomi Instructions