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🔐 Unlock the future of home security with a touch of your palm!
The eufy FamiLock S3 is a cutting-edge ANSI/BHMA Grade 1 smart deadbolt featuring ultra-fast, 99.99999% accurate palm vein recognition for keyless entry. Equipped with a 2K HD wide-angle camera and advanced PIR & Radar sensors, it ensures crystal-clear monitoring and reduces false alarms by 95%. Powered by a robust 15,000mAh rechargeable battery with AAA backup, it guarantees uninterrupted security. Fully compatible with major smart home ecosystems including Apple HomeKit, Alexa, Google Home, and Matter, it offers a seamless, privacy-first smart home experience.



















| ASIN | B0DTHVNNXQ |
| Additional Features | Auto-Lock |
| Best Sellers Rank | #145,327 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #306 in Deadbolts |
| Brand | eufy Security |
| Brand Name | eufy Security |
| Color | Light Gray |
| Connectivity Protocol | Wi-Fi |
| Control Method | App |
| Controller Type | Apple HomeKit, Amazon Alexa, SmartThings, iOS, Android |
| Customer Reviews | 4.2 out of 5 stars 435 Reviews |
| Included Components | Lock |
| Item Dimensions | 7.8 x 3.1 x 20 centimeters |
| Item dimensions L x W x H | 7.8 x 3.1 x 20 centimeters |
| Lock Type | Deadbolt |
| Lock type | Deadbolt |
| Manufacturer | eufy |
| Manufacturer Part Number | T85V0 |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model Name | T85V01Y1 |
| Model Number | T85V0 |
| Number of Pieces | 1 |
| Recommended Uses For Product | Securing residential front doors |
| Recommended uses for product | Securing residential front doors |
| Shape | Rectangular |
| Special features | Auto-Lock |
| Style Name | Palm Vein + Video |
| UPC | 194644232672 |
| Unit Count | 1.0 Count |
S**J
Best Vein Smart Lock
The eufy FamiLock S3 has been a huge upgrade for me, especially after returning the Lockin Veno. Assembly was surprisingly simple and frustration-free. Everything fit together intuitively, and the instructions were clear enough that I had the lock fully installed and running in far less time than I expected. What really sets the FamiLock S3 apart from the Veno is the feature set. The responsiveness of the fingerprint reader, the smoothness of the touchscreen, and the overall build quality all feel a step above. The app integration is cleaner too, with faster updates and more reliable notifications. After dealing with connection hiccups and slower response times on the Veno, this lock feels like a breath of fresh air. Another big draw for me was eufy’s strong security reputation. Their focus on privacy and local data processing gave me a lot more confidence in choosing a smart lock that would actually protect my home without sending data who-knows-where. It’s reassuring to know the company behind the product takes security seriously. Overall, the FamiLock S3 has been easy to set up, easy to use, and packed with thoughtful improvements over the lock it replaced. I’m genuinely glad I made the switch.
S**D
Well Made and Works Very Well
Shipping was quick/easy and installation and setup was quick. The operation of the smart lock is very good as well. Previously we had August and Yale and they constantly disconnected/reconnected with WiFi even after we installed a mesh system. The Eufy lock is much better and stays connected plus my family loves the palm entry feature. I highly recommend this line of smart door locks from Eufy.
A**R
Impressive and great features
Impressed with all the options and features. UI Is a bit confusing tho and I do agree that the hands/vein technology is difficult to get to work. I’m gonna try creating multiple versions of my hands to see if that’ll improve things like I’ve done with the thumbprint one. Actually wishing I had the fingerprint one still. The video mechanism works great and you can choose different lengths to film, which I really like. I did feel that the battery could’ve lasted a bit longer. It lasted about a month before it needed recharging them but the four AA batteries held fine while it was being charged. This was with a lot of people coming in and out though. Np installing to door (although had my handyman do it). NOTE: after putting it together it will have u press a button in the back wheee the battery is and if u already put the cover on np bc it’s super easy to take off. I did have to try connecting a couple of times. If you have issues with this part and it talks about router settings go to your Internet provider settings online or app and change signal to 2.4 only from dual band (2.4 and 5.0) temporarily and then u won’t have a problem.
R**N
Works great
The only feature missing is the detection of open/closed door so it does not try to lock when the door is still open.
J**N
Super cool
Love this lock and it does work as advertised however I removed a star due to the time it takes to unlock, the recognition of the palm is slow, slower than they advertise by far.
Trustpilot
1 day ago
2 months ago