The Nuki Smart Lock Pro 4.0 is a keyless smart door lock with a sleek design that allows remote access to your home and automatic unlocking. This black smart lock is made from 100 percent recycled aluminum and features a slim profile for discreet installation. Integrated Wi-Fi connectivity and Matter protocol support ensure seamless integration into smart home ecosystems like Google Home, Alexa, and Apple HomeKit. The lock operates automatically as you approach, eliminating the need to search for keys when your hands are full with groceries, luggage, or other items. You can remotely control access via a smartphone app, receive notifications when the door is opened or closed, and monitor access activity through the lock log. The system supports up to 200 digital keys for family members, friends, or service personnel, providing flexible access management without the need for physical key exchanges. Installation requires no drilling or screws and is suitable for various door types. The improved power pack offers up to six months of battery life, and the auto-unlock feature detects your proximity for automatic door opening. This successor model focuses on practical security enhancements through digital access control, remote monitoring, and integration with existing smart home platforms for comprehensive security management.