Smart locks are advanced locking systems that allow users to secure and access their doors using electronic methods instead of traditional keys. They can be controlled via smartphones, key fobs, or even biometric data like fingerprints. Many smart locks connect to home automation systems, enabling features such as remote locking and unlocking, temporary access codes for guests, and activity logs to track who enters and exits. These locks often use Bluetooth or Wi-Fi technology to communicate with devices, making them convenient for homeowners. Popular brands include August, Yale, and Schlage, each offering various features to enhance security and ease of use.