Search  for anything...
eufy Security

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

  • Based on 94 reviews
Condition: New
Checking for the best price...
$399.99 Why this price?
Save $39.99 was $439.98

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Jul 30
Order within 18 hours and 20 minutes
Available payment plans shown during checkout

Recently Viewed

Style: Palm Vein + Video + Rear Screen


Features

  • Palm Vein Unlocking: Advanced Security with 99.99999% Accuracy. Achieve recognition in just 0.1 seconds with secure, forgery-proof palm vein technology. This feature ensures maximum security based on your palm's unique vein patterns. Your palm vein data is stored locally on the lock, keeping your privacy entirely in your hands.
  • This all-in-one device: A 2K HD camera with an f/1.6 lens for sharp, clear visibilityeven 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 whos 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.
  • [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.]

Brand: eufy Security


Special Feature: DualPower System, Wave to unlock with Palm, Works with Smart Home Platforms, 2K Full HD Head-to-toe View, PIR+Radar Motion Detect See more


Lock Type: Video Doorbell, Biometric, Deadbolt, Video Door Lock


Item dimensions L x W x H: 3.07 x 1.22 x 7.87 inches


Material: Aluminum


Brand: ‎eufy Security


Special Feature: ‎DualPower System, Wave to unlock with Palm, Works with Smart Home Platforms, 2K Full HD Head-to-toe View, PIR+Radar Motion Detect


Lock Type: ‎Video Doorbell, Biometric, Deadbolt, Video Door Lock


Item dimensions L x W x H: ‎3.07 x 1.22 x 7.87 inches


Material: ‎Aluminum


Recommended Uses For Product: ‎Front Door, Home use


Style: ‎Palm Vein + Video + Rear Screen


Color: ‎Black


Number of Pieces: ‎1


Included Components: ‎Interior Assembly, Rechargeable Battery & AAA Batteries x 4, Exterior Assembly, Physical Keys, Deadbolts & Deadbolts Screws


Shape: ‎Rectangular


Control Method: ‎Gesture, Remote, Touch, Voice


Connectivity Protocol: ‎Wi-Fi


UPC: ‎194644232658


Model Name: ‎E85V0JY1


Manufacturer: ‎eufy


Part Number: ‎T85V0


Item Weight: ‎5.5 pounds


Product Dimensions: ‎3.07 x 1.22 x 7.87 inches


Country of Origin: ‎China


Item model number: ‎E85V0


Batteries: ‎4 AAA batteries required. (included)


Item Package Quantity: ‎1


Special Features: ‎DualPower System, Wave to unlock with Palm, Works with Smart Home Platforms, 2K Full HD Head-to-toe View, PIR+Radar Motion Detect


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Lithium Ion


Date First Available: April 14, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • TOTALLY WORTH IT!!!!!!
Style: Palm Vein + Video + Rear Screen
I love it!!! I truly love the Eufy Security System more than RING or Bing. The lock makes a cute little "DING" whenever you lock/unlock the door. Has a one-click system you can use to lock the door. The indoor screen is perfect for FL hurricane doors since you can't install a peep-hole, with a click of a button you can view outside if you don't have your phone nearby to check the app. I had the original one and had some issues while using it but this one works as smooth as butter! The Palm Reader is so convenient when my hands are full of groceries I no longer have to struggle to use the fingerprint scanner like I did on the old model. BUY IT! You won't regret it I promise! ... show more
Reviewed in the United States on April 28, 2025 by Sharon
    • Good device.
Style: Palm Vein + Video + Rear Screen
Eufy customer service looked at the issue and found out that my Homebase 3 is overloaded (too many devices). After removing the lock and adding it to WiFi, most of the connection issues seem to have been resolved. The palm open is a hit or miss, but definitely happy it connects when I need it. Original review - I was excited when this was announced, but it’s been a frustrating experience. The installation was straightforward, but it’s extremely unreliable. It stays offline most of the time. Palm reader is a hit or miss. Only thing that works properly is the key code. If I wanted that, there are a ton of options. Notifications are also either missed or so delayed, it makes this useless. Asked customer service for help, but they have not been able to help at all. No other device in the home is so flaky. ... show more
Reviewed in the United States on May 4, 2025 by Anurekh
    • Excellent Lock
Style: Palm Vein + Video + Rear Screen
The Eufy Security FamilyLock S3 Mac. This smart lock distinguishes itself with its elegant, all-metal unibody design in a sophisticated Space Gray finish, perfectly complementing Apple's aesthetic. Beyond its looks, the S3 Mac boasts a robust suite of entry methods, including a responsive fingerprint sensor, a secure keypad, the Eufy Security app, and traditional keys, offering flexibility for all household members. Its seamless integration with the Apple ecosystem, particularly HomeKit, allows for convenient voice control via Siri and inclusion in smart home automations, making it a compelling choice for Apple enthusiasts seeking both security and convenience. The installation process of the FamilyLock S3 Mac is notably straightforward, thanks to clear instructions and a user-friendly design. Its advanced security features provide peace of mind, incorporating AES-128 encryption and tamper detection to safeguard your home. The lock's built-in Wi-Fi connectivity eliminates the need for a separate hub, simplifying setup and operation. Furthermore, the Eufy Security app offers comprehensive control, enabling remote locking and unlocking, activity logs, and the ability to grant temporary access to guests – all contributing to a seamless and secure smart home experience. In conclusion, the Eufy Security FamilyLock S3 Mac stands out as a premium smart lock that masterfully blends style, security, and smart home integration. Its Apple-inspired design, versatile entry options, robust security features, and seamless HomeKit compatibility make it an excellent investment for users prioritizing both aesthetics and advanced functionality. While it might come with a slightly higher price tag compared to some competitors, the S3 Mac delivers a refined and reliable smart lock experience that's hard to overlook, especially for those deeply integrated into the Apple ecosystem. ... show more
Reviewed in the United States on May 11, 2025 by Victor Santos
    • I love that it has a peep hole screen built in!
Style: Palm Vein + Video + Rear Screen
I love my lock. I already had Eufy cameras and doorbell, so this fit right in. I like that as I walk up to my door, I just hold out my hand the it magically unlocks. The main reason I got this and made my parents get this is because of the screen on the back. Neither of us have peep holes, and although we both already had doorbell cameras, the app always takes a little bit to boot up. This lock just lets us walk up, click the botton on the back, and 2 seconds later we can see who is outside the front door. This lock was also very easy to install. I had little bit of a hard time getting it to hook up in the app, because it was so new, it wasn't listed in the app as devices to add. But I was able to eventually get it all figured out. ... show more
Reviewed in the United States on May 19, 2025 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...