eufy Smart Lock FamiLock S3 Max 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, Rear Lock Video Screen
eufy Smart Lock FamiLock S3 Max 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, Rear Lock Video Screen
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eufy Smart Lock FamiLock S3 Max 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, Rear Lock Video Screen

|39 ratings

Key item features

  • ‌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.
  • This all-in-one device: A 2K HD camera with an f/1.6 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.

Specs

Power type, BatteryFeatures, HD, Touch ButtonWireless, Wi-FiResolution, 2KField of view, 150 ºBrand, eufy

About this item

Product details

eufy FamiLock S3 Max 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, Rear Lock Video Screen
  • ‌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.
  • This all-in-one device: A 2K HD camera with an f/1.6 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.
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Specifications

Power type

Battery

Features

HD, Touch Button

Wireless

Wi-Fi

Resolution

2K

Warranty

Warranty information

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Warnings

Customer ratings & reviews

4.2 out of 5 stars
stars
39 ratings20 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars67% (26)
  2. 4 stars13% (5)
  3. 3 stars5% (2)
  4. 2 stars8% (3)
  5. 1 star8% (3)
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Showing 1-3 of 20 reviews

Oct 10, 2026
Reviewer name: Draginbreath01
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Eufy FamiLock S3 Max

★★★★★ Great Smart Lock! I've had the eufy FamiLock S3 Max for a couple of months now, and so far I'm really happy with it. Setup was pretty straightforward, and everything has been working well. The palm recognition is definitely my favorite feature. It works almost every time and makes getting in the house so much easier. The camera quality is great, and the app is easy to use too. Overall, no complaints so far. I'd definitely recommend it!

Review from eufylife.com
Helpful?4VN09RPSM5G318705810494
Jul 2, 2026
Reviewer name: Gore
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Few months with Palm scanner door lock

Way better than the fingerprint one. The palm technology has been pretty consistent. I love how everything is all in one. Battery has been great so far and coming from a AA battery powered model, the rechargeable will be great. It's been a few months and battery is still above 80-85%.

Review from eufylife.com
Helpful?4VN09RPSM5G318705810494
Jun 28, 2026
Reviewer name: Blake K
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Works great liked the convenience

Works great a big upgrade from their fingerprint model that started freaking out.

Review from eufylife.com
Helpful?4VN09RPSM5G318705810494
Current price is Now $359.99
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was $399.99
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