Most smart locks support several entry methods at once.
- Code: a number entered on the keypad. For children and older relatives this is often the easiest option.
- Card or key fob: hold an RFID card near the lock. A lost card is deleted from the system and a new one is added.
- Fingerprint: nothing to carry or forget. Good readers cope with wet or cold fingers; cheaper models can be less reliable.
- Phone: Bluetooth when you are nearby, and remote opening over the internet if the lock has a gateway.
- Mechanical key: most models keep one as a backup, so a flat battery or an electronic fault does not leave you stuck outside.

