eufy FamiLock S3 Smart Lock With Palm Vein Recognition – Keyless Entry Door Lock for Front Door, 3-in-1 Wi-Fi Keypad Deadbolt+ 2K HDR Camera+ Doorbell, ANSI/BHMA Grade 1, Motion Sensor, No Monthly Fee
Gadronics 
Price: $349.99 - $314.99
(as of Jul 25, 2025 09:14:42 UTC – Details)
From the brand
At eufy we believe all great smart home products need to be thoughtfully built from the start. From whole-home security to smart cleaning solutions, eufy’s technology brings you expert protection and deep cleaning that’s tailored to your lifestyle and creates human-first technology that enlivens the lives of everyone around you.
Because care is what makes a house a home, everything we build is built with care for you.
eufy, Built with Care
NVR Security System S4 Max
eufy Security Camera
eufy Wired Camera
eufy Smart Lock
eufy Doorbell
eufy Baby & Mom
eufy Smart Lights
eufy Alarm System and Tracker
Palm Vein Unlocking: Advanced Security with 99.99999% Accuracy. Achieve recognition in just 0.1 seconds with cutting-edge, forgery-proof palm vein recognition. This next-gen security feature relies on the unique vein patterns in your palm, ensuring top-tier protection. Plus, your palm vein data is stored securely on the device, keeping your privacy intact.
All-in-One Smart Lock with 2K HD Camera: FamiLock S3 integrates a high-resolution 2K HD camera with an f/1.6 lens, ensuring crystal-clear visibility even in low light with HDR support. Enjoy an ultra-wide view with 150° vertical, 150° horizontal, and 180° diagonal coverage, eliminating blind spots—perfect for monitoring packages and visitors.
Dual Power Supply for Uninterrupted Performance: Stay powered with a 15,000mAh rechargeable lithium battery, offering up to 4 months of continuous use. In case of power loss, 4 AAA backup batteries provide an extra month of operation, ensuring uninterrupted security.
PIR & Radar Dual Sensors for Smart Detection: Reduce false alarms by 95% with advanced PIR and Radar dual-sensor technology, delivering faster and more reliable access—keeping security and convenience at the forefront.
Seamless Home Automation with Matter & Apple Home: Easily integrate with the eufy Ecosystem & HomeBase 3 for advanced AI security features. Supports Matter for smooth, secure connections with Apple Home, Google Home, Alexa, and SmartThings—giving you a privacy-first, future-ready smart home experience. [Note: Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App.] [Matter is now compatible with HomeBase 3 for simultaneous use, but they can function separately. Full compatibility is expected by June.]
Customers say
Customers find the smart lock easy to install with clear instructions and appreciate its advanced security features, with one customer highlighting its remote locking and unlocking capabilities. The device functions well, has a sophisticated Space Gray finish, and offers both keypad and physical key options for convenience. The palm recognition feature receives mixed feedback, with one customer reporting accurate palm reading while another finds it unreliable. The product’s quality control receives negative feedback from multiple customers.
