This smart door knob integrates a capacitive fingerprint sensor, a backlit numeric keypad, and Bluetooth connectivity into a single deadbolt unit suitable for front doors, side gates, or office entries. The shell is constructed from zinc alloy with a matte finish, providing resistance against corrosion, scratches, and daily weather exposure.

Inside, the motor module operates quietly and has been tested for over 100, 000 cycles, ensuring long-term reliability. The fingerprint scanner uses semiconductor technology that reads the live layer of the finger, achieving a recognition speed of under 0.5 seconds while rejecting false prints. The keypad supports up to 50 user codes, and both the app and watch control operate over low-energy Bluetooth, enabling remote management from up to 30 feet away. The auto-lock function can be set from 10 to 120 seconds, automatically securing the door after each entry. The lock runs on four AA batteries, with a low-battery indicator and an emergency USB-C backup port. The six unlocking methods—fingerprint, code, phone app, watch app, physical key, and voice assistant integration via smart home hub—offer flexibility for families, renters, or small offices. The straightforward installation requires only a screwdriver and fits standard 2-3/8 inch or 2-3/4 inch backsets. With its balanced combination of durable materials, responsive electronics, and practical features, this door lock delivers a reliable keyless entry experience at a very affordable price point. The compact knob design minimizes the footprint on the door, while the smooth rotation mechanism prevents sticking over time. Users can grant temporary codes to guests or service providers and review entry logs through the companion application. The Bluetooth range is sufficient for typical home setups, and the app interface is clean and intuitive for adding or deleting users.

This product focuses on essential smart lock capabilities without unnecessary complexity, making it a solid choice for those seeking a straightforward upgrade to keyless living.