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
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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.
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Availability:
In Stock.
Arrives
Saturday, Mar 28
Style: Palm Vein + Video + Rear Screen
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 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.
- 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 SmartThingsgiving 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.
Manufacturer: eufy
Part Number: T85V0
Item Weight: 0.704 ounces
Product Dimensions: 3.07 x 1.22 x 7.87 inches
Item model number: T85V0
Batteries: 3 AAA batteries required.
Color: Black
Style: Palm Vein + Video + Rear Screen
Material: Aluminum
Shape: Rectangular
Item Package Quantity: 1
Number Of Pieces: 1
Special Features: 2K Full HD Head-to-toe View, DualPower System, PIR+Radar Motion Detect, Wave to unlock with Palm, Works with Smart Home Platforms
Included Components: Deadbolts & Deadbolts Screws, Exterior Assembly, Interior Assembly, Physical Keys, Rechargeable Battery & AAA Batteries x 4
Batteries Included?: No
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:
Saturday, Mar 28
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.
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
Learn more about financing & leasing here.
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Top Amazon Reviews
Style: Palm Vein + Video + Rear Screen
The media could not be loaded. This product turned out to be ***really impressive**** and great! It's a unique marvel of multiple products in one device: smart lock with keypad, palm reading, physical key, connected doorbell, digital peephole AND security camera with AI. If you struggle to record your hands, I have a suggestion. See video (uploaded low res for privacy). Start with your fingers on the sensor at the same angle of the palm reader (top of device) and slowly raise your hand while keeping the same angle vs the reader. At some point it will register/recognize it. This process became super simple for the whole family to register all hands. At the location it recognizes the palm you can then make a mark on the door frame with a pencil to help you remember the exact location and angle to use next time. Simple and easy. Also, I read information on the product page, and some reviews likely repeating the page info, that you cannot duplicate the keys "for security reasons". ***BUT*** it turns out you can copy the keys as I did at the local hardware store, nothing different to other keys out there. This may seem like an issue but for us it was crucial to have the reassurance that we can each have a physical key to open the lock in an emergency if the battery or motor fails (it hasn't). So yes you can easily copy the keys (they include 2 with the device). The smart notifications detecting people at the door and recordings you can watch from anywhere and the autolock, state update and temporal passwords are already worth the price. On my first review, I was distressed that it required calling customer support to get the round faceplate to install on the door and that the customer support was not easy to reach. However customer support did reach out and did all they could to help me get the round faceplates quickly. Kudos to the eufy team! I encourage eufy to improve the product and communication in a number ow ways to make it even more awesome: Have better information on keys being able to be duplicated if needed, nothing to fear as every other similar lock out there will let you do that and this is an asset that could turn customers away fearing only 2 keys are included. Also, try to include all the right hardware in the box to avoid the issue of extra calls. Finally better support training to resolve and escalate things quickly. Overall, a great impressive product and team and I look forward to keeping using this device and learning more about the ways Eufy innovates in this space.
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Reviewed in the United States on July 25, 2025 by An Explorer
Style: Palm Vein + Video + Rear Screen
The palm scanner is fast and accurate. It recognizes registered palms in about a second and unlocks smoothly. I have tested it in different lighting conditions and temperatures and it has been consistent. No false rejections, no letting in strangers. It knows who is who and responds accordingly. Beyond the palm feature, it has all the standard smart lock capabilities. Keypad codes, fingerprint reader, app control, temporary access for guests. Multiple ways to get in means flexibility for different situations. The palm scanner is the headline feature but having backup options is practical. Build quality is solid and the lock feels secure. This is not some flimsy gadget pretending to be security hardware. It looks and feels like a serious lock that happens to have futuristic tech built in. The installation fit my standard door prep without modification. The app integration works well for remote monitoring and access management. See who comes and goes, create and revoke access codes, check lock status from anywhere. All the smart features you would expect from a premium smart lock in 2026. For anyone wanting to upgrade their door security with something that feels cutting edge while actually being practical, this delivers. The palm recognition is not just a party trick. It is genuinely useful and works every time. Welcome to the future of home entry.
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Reviewed in the United States on January 31, 2026 by S
Style: Palm Vein + Video + Rear Screen
We've had this now since last June we love it so far works really well good video quality. The app itself can be slow. It does disconnect sometimes but not too often, the battery life is good it's for Airbnb so I'm not using it daily to fully know. I love the feature on this where you can give someone temporary access works really well ❤️ very easy to use and I love the look
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Reviewed in the United States on February 3, 2026 by Kerry Allen
Style: Palm Vein + Video + Rear Screen
I absolutely love this Eufy FamiLock S3 Max. I have used other smart locks before, but this one immediately stood out and became a no-return purchase for me. The palm vein recognition is the real differentiator. You walk up, raise your palm, and the door unlocks. No keys. No codes. No phone. It just works. Once you experience it, it is hard to go back, especially when your hands are full. We have multiple users set up, including my wife and me, and it recognizes each of us quickly and consistently. I also love the built-in camera and doorbell. When someone rings the doorbell, there is a screen on the back of the lock so you can see who is outside without using a peephole. It feels thoughtful and very well designed. Being part of the Eufy ecosystem with the HomeBase makes everything seamless. The video quality is clear, the app is easy to use, and the overall system feels solid and secure. There are a lot of smart locks on the market, but the palm scan feature is what sold me. It is simple, fast, and genuinely useful in real life.
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Reviewed in the United States on December 13, 2025 by Arend Macapagal Arend Macapagal