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eufy Security Video Smart Lock FamiLock S3 Max with Palm Vein Recognition | Internal Video Screen, BHMA Grade 1, Keyless Entry Front Door Lock, WiFi Deadbolt+2K HD Doorbell Camera,16GB Built-in Storage
- Palm Vein Unlocking
- This all-in-one device
- The Rear Lock Video Screen
- Dual Power Supply System
$359.99
Price as of Oct 16, 2026, 7:47 AM UTC. Prices and availability are subject to change. The price shown on Amazon at the time of purchase applies.
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Key features
Palm Vein Unlocking
Unlock with advanced security and ultra-fast recognition in just 0.6 seconds. Forgery-resistant palm vein technology scans your unique vein patterns for added protection. All data is securely stored locally on the lock—keeping your privacy in your hands.
This all-in-one device
A 2K HD camera with an f/1.8 lens for sharp, clear visibility—even at night. A video doorbell with a 150° Head-to-Toe wide-angle view that eliminates blind spots, perfect for monitoring packages or checking on visitors. A smart lock with real-time visitor alerts. Whether it's ensuring your family's safety or giving peace of mind when older people or children are home alone, the FamiLock S3 Max keeps you connected and reassured.
The Rear Lock Video Screen
The Rear Lock Video Screen allows you to effortlessly check the front door status anytime, without needing a smartphone app. Its simple, intuitive design makes it ideal for the elderly and children, offering a quick and hassle-free way to see who’s at the door. Perfect for households seeking an easy-to-use, app-free solution for monitoring the front entrance.
Dual Power Supply System
Stay powered with a rechargeable battery offering up to 4 months of full functionality, plus an emergency set of 4 AAA batteries for an extra month of essential functionality in case of power outages.
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.
eufy Security Video Smart Lock FamiLock S3 Max with Palm Vein Recognition | Internal Video Screen, BHMA Grade 1, Keyless Entry Front Door Lock, WiFi Deadbolt+2K HD Doorbell Camera,16GB Built-in Storage
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