Why won’t my Amazfit Stratos show caller ID but phone number on incoming calls?

For dual SIM card, Stratos only show contact name of the main card, but not sub-card.

If the contact has more than one phone number, it will only show contact name when it receive a call from the first phone number of the contact.

Besides, you need to allow Amazfit APP read contacts so that it can display caller ID. Please set it up on the settings or safety software on your phone.