You can import the contacts of the Mi 13 phone to the Apple 12pro phone by following the steps below:
First of all, open the contacts app on the Mi 13 phone, click the \"Settings\" button in the upper right corner, select \"Export contacts\
Then copy the contact files from the memory card or internal storage to your computer, and import the files to the Contacts app on the Apple 12pro.
You can also sync contacts from the Mi 13 phone to your Google account, and then log into the same Google account on the Apple 12pro phone to sync contacts.