eufy Security Smart Lock FamiLock S3 Max with Palm Vein Recognition, Keyless Entry Front Door Lock, Wi-Fi Keypad Deadbolt+ 2K HDR Doorbell Camera, 16GB Built‑in Storage, BHMA 1, Rear Lock Video Screen
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Availability:
In Stock.
Arrives
Tuesday, Jul 28
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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.
Brand: eufy Security
Special Feature: 2K Full HD Head-to-toe View, DualPower System, PIR+Radar Motion Detect, Wave to unlock with Palm, Works with Smart Home Platforms See more
Lock Type: Biometric, Deadbolt, Video Door Lock, Video Doorbell
Item dimensions L x W x H: 3.07 x 1.22 x 7.87 inches
Material: Aluminum
Brand Name: eufy Security
Recommended Uses For Product: Apartment Door, Office Door, Front Door, Entry Door, Exterior Door
Number of Pieces: 1
Included Components: Deadbolts & Deadbolts Screws, Exterior Assembly, Interior Assembly, Physical Keys, Rechargeable Battery & AAA Batteries x 4
Model Number: E85V0
UPC: 194644232658
Model Name: E85V0JY1
Manufacturer: eufy
Unit Count: 1.0 Count
Manufacturer Part Number: T85V0
Additional Features: 2K Full HD Head-to-toe View, DualPower System, PIR+Radar Motion Detect, Wave to unlock with Palm, Works with Smart Home Platforms
Lock Type: Biometric, Deadbolt, Video Door Lock, Video Doorbell
Control Method: Gesture, Remote, Touch, Voice
Connectivity Protocol: Wi-Fi
Smart Home Compatibility: Smart Home Compatible
Style Name: Palm Vein + Video + Rear Screen
Color: Black
Shape: Rectangular
Material Type: Aluminum
Item Dimensions: 3.07 x 1.22 x 7.87 inches
Item Weight: 1043 Grams
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jul 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.
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Similar Products
Top Amazon Reviews
Style: Palm Vein + Video + Rear Screen
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
very easy to use and connected with no problems. I don’t typically use the palm recognition as it’s easier for me to just type my code or unlock from my phone. besides some green residue from the pollen, it’s held up great in all sorts of northeast weather (snow, rain, cold, hot). battery life is pretty good although takes a very long time to charge when it does need to be charged. I love the notifications and how it determines if there’s motion or if there’s a human. you can also change the sensitivity if it’s recognizing too much or not enough motion
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Reviewed in the United States on May 12, 2026 by Rachel
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
EXCELLENT LOCK AND APPEARS TO BE RELIABLE. Install WAS EASY but I had to get directions and instructions off the internet. No cable or charger to charge battery was included. Android App works fine as doesn't the many camera I have purchased from Eufy before I replaced a LOCKIN wifi lock that worked great until it didn't. Customer support very good but instead of several emails, requests for pictures, LOCKIN should have just sent me a new unit and let me return the old. Lasted 6 month then lock mechanism would not act on inputs from WiFI and BluT inputs via the app.
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Reviewed in the United States on April 28, 2026 by Bob B
Style: Palm Vein + Video + Rear Screen
Eufy products are solid however this one is lacking. Family members are getting locked out of the house because the deadbolt immediately relocks itself after a successful attempt. The palm reader is gimmicky at best and only works 20 percent of the time. Make sure to have a physical key on you at all times. I'd recommend the Eufy fingerprint unlock deadbolt it's way more simplistic and a third of the price. It's more reliable too and always works on my back door. What's more important? Having new tech or being able to enter your home. I've tried removing the batteries and even in the open position the lock retracts itself after one second. The automatic lock feature has been toggled off and on as well as rain mode. The last resort is completely resisting the thing in the app as the firmware is up to date. The lock works manually just fine If you enjoy sleeping outside this device is for you I will be returning as I've had it less than a month. This is way too many issues for this short of ownership.
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Reviewed in the United States on June 9, 2026 by amazon_user
Style: Palm Vein + Video + Rear Screen
Update: I got it November 24 and the faceplate stopped working January 19th. Leaving as usual and couldn't press the button on the keypad to lock, no lights, no sign of camera working, don't thing the interior screen would either. Doorbell did work, as did app access to lock and unlock. No warning. I remember the battery being around 50%, it had been around 45-50 degrees overnight but lock is fairly protected. Removed the battery to charge it, on the AAA's it works a lot like it had been, auto-locks and app can lock/unlock it. except doorbell just says "main battery low" when pressed. Put the main battery back in, and everything works again. Unsure whether it was simply the removal/replacement or it actually needed charging. Neither would be great. Guess we'll see in 2 more months. And the AAA's dropped about a third in the couple hours without the main battery. Otherwise I had just been raving about it, good camera with access to past events without subscription. Palm often works as soon as a put my hand up--but sometimes have to move my hand a bit. Original review: I do like it quite a lot, it's great that it does 3 jobs at once: electronic lock, video doorbell, security camera--and it seems to do them all well. It's pretty fast, seems well built, and it does a great job of knowing when the door is closed to auto lock (many others have janky add-on contact sensors/magnets, pretty sure this uses the camera and local AI instead). Also, it was unclear from reviews I'd watched but this DOES HAVE local storage for recordings (and it lets you download to your phone), so it does NOT need an extra Eufy hub to store the video! There are a couple negatives however: very little adjustment range on installing which left a sliver of the door hole visible on the side of my installation, some kind of extra gasket or a little more adjustment range on the deadbolt alignment would be great; the key is very nonstandard so many report it's hard to get duplicated--however given the backup battery plus externally accessible charge port maybe people should rethink how much they need a key; the range/sensitivity setting for the people detection doesn't do that much in a condo/public courtyard setting--I would love to have something like ability to categorize loitering detection at a higher level of alert than a passerby... and also if it wouldn't report me using the lock as loitering! Overall though it does all three things pretty darn well and I'm glad I bought it, installation was easy, the vein scanning seems to work pretty well and the auto locking feature is great.
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Reviewed in the United States on December 1, 2025 by Jeremy M. Lang
Style: Palm Vein + Video + Rear Screen
I really like being able to see who’s at the door without grabbing my phone to open the app. The palm recognition works surprisingly fast since there’s no fingerprint recognition, and the connectivity has been solid so far. The ease of use is one of the best parts, especially with the rear screen, and the Instructions were easy to follow during setup. Battery life seems good and the overall durability feels better than expected.
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Reviewed in the United States on May 13, 2026 Reviewed in the United States on May 13, 2026 by Gene
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 Reviewed in the United States on December 13, 2025 by Arend Macapagal