The Hornbill – Best affordable smart lock for Airbnb hosts offers fingerprint, keypad, IC card, and app access. It stores up to 100 users, unlocks in 0.1 s, and auto-locks for added safety. Built with IP65 weatherproof aluminum alloy, it runs 6–8 months on AA batteries and includes USB-C emergency power. Perfect for rentals, Airbnb, and smart homes with Wi-Fi gateway and voice assistant support.