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
Price: $349.99 - $33.99
(as of Nov 24, 2025 08:05:22 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
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Palm Vein Unlocking: Advanced Security with 99.9% Accuracy. Achieve recognition in just 0.6 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. This video lock is not compatible with HomeBase 2.
Customers say
Customers find the smart lock to be the best on the market with incredible battery life and easy installation. Moreover, they appreciate its ease of use, with one customer noting how convenient the palm reader feature is. However, the functionality receives mixed feedback, with some saying it works well while others report it only works occasionally. Additionally, the palm recognition feature and connectivity also get mixed reviews, with some finding it super fast while others report slow performance, and some customers experiencing connection issues.
