The watch supports adding door lock NFC.
Add method:
1. Go to the [Mi Fitness] App >> [Device] >> [Card Pack] >> [Add New Card] >> [Smart Door Lock] >> wait for the card activation to be completed;
2. After the activation is completed, the key needs to be assigned in the App door lock.
How to activate door locks NFC:
1. Enter the Mi Home App door lock plug-in and tap [User Management];
2. Select the one who wants to activate the NFC device;
3. Select NFC door card and tap [Add];
4. Tap [Next] and place the NFC device close to the identification area;
5. Wait for the addition to be successful.