While the primary feature of a face recognition smart door lock is the ability to scan facial features to open, some luxury lock systems come with added features for better security. A face scan door lock can come with a display screen showcasing your face on the lock, with a built in mic for two way communication. Others come with added dial pads or fingerprint scanners for easy turning and opening. Additional features include a companion app for a quick check in and remote opening from your phone, doorbells, and an added keyhole just in case.