eufy Security Smart Lock FamiLock S3 with Palm Vein Recognition, Keyless Entry Door Lock for Front Door, Wi-Fi Keypad Deadbolt+ 2K HDR Doorbell Camera, 16 GB Built‑in Storage, BHMA 1, No Monthly Fee - Amazon.com
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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.
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Availability:
In Stock.
Arrives
Tuesday, May 5
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Style: Palm Vein + Video
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.
- All-in-One Smart Lock with 2K HD Camera: FamiLock S3 integrates a high-resolution 2K HD camera with an f/1.6 lens, ensuring crystal-clear visibility even in low light with HDR support. Enjoy an ultra-wide view with 150 vertical, 150 horizontal, and 180 diagonal coverage, eliminating blind spotsperfect for monitoring packages and visitors.
- Dual Power Supply for Uninterrupted Performance: Stay powered with a 15,000mAh rechargeable lithium battery, offering up to 4 months of continuous use. In case of power loss, 4 AAA backup batteries provide an extra month of operation, ensuring uninterrupted security.
- PIR & Radar Dual Sensors for Smart Detection: Reduce false alarms by 95% with advanced PIR and Radar dual-sensor technology, delivering faster and more reliable accesskeeping security and convenience at the forefront.
- 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, Auto-Lock, DualPower System, Wave to unlock with Palm, Works with Smart Home Platforms See more
Lock Type: Deadbolt
Item dimensions L x W x H: 3.07 x 1.22 x 7.87 inches
Material: Metal
Brand: eufy Security
Special Feature: 2K Full HD Head-to-toe View, Auto-Lock, DualPower System, Wave to unlock with Palm, Works with Smart Home Platforms
Lock Type: Deadbolt
Item dimensions L x W x H: 3.07 x 1.22 x 7.87 inches
Material: Metal
Style: Palm Vein + Video
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
Item Weight: 2.45 Kilograms
Control Method: App
UPC: 194644232672
Model Name: T85V01Y1
Manufacturer: eufy
Part Number: T85V0
Item Weight: 5.39 pounds
Product Dimensions: 3.07 x 1.22 x 7.87 inches
Item model number: T85V0
Batteries: 4 AAA batteries required. (included)
Power Source: Battery Powered
Installation Method: Self-Adhesive
Special Features: 2K Full HD Head-to-toe View, Auto-Lock, DualPower System, Wave to unlock with Palm, Works with Smart Home Platforms
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:
Tuesday, May 5
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
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.
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Reviewed in the United States on November 11, 2025 by Amazon Customer
Style: Palm Vein + Video
The media could not be loaded. Replaced our fingerprint-reducing Eufy smart lock. I LOVE the palm reading feature (so much easier, and more reliable than the fingerprint reader, which was causing me grief after 2 years, as it kept failing to recognize my fingerprints). But this new smart lock is amazing, and the palm reading feature seems to work without any problems (knock on wood). Things that I especially like about this: 1. No need to touch the lock (like with the fingerprint reader) 2. The Black color looks much sleeker than the old silver-toned lock we had…PLUS, the black color makes reading the back-lit number pad SO much easier to read (our old lock was silver, with white numbers, and even being back-lit, it was next to impossible to see the numbers, especially in bright sunlight). 3. Love the locks integrated camera & doorbell (allowing us to remove our separate Eufy doorbell camera, which was starting to get annoying in terms of needing to charge it every 6 weeks or so). 4. The doorbell button is easy to recognize - it lights up and has a small bell icon on it (believe it or not, with the basic Eufy doorbell camera, the design is such that the camera lens and the doorbell button are both about the same size and shape, and the button wasn’t marked or labeled — and I can’t tell you how MANY times people came to our door, thought they were ringing the doorbell, but were really smashing their thumb onto the round camera lens! — mademfor funny videos, but not a very effective doorbell if people don’t know where to press) 5. A HUGE added benefit of this model is the long battery life, PLUS the back-up AA batteries that function if the main battery dies (unlikely if you’re paying the slightest attention to your Eufy app)…but more importantly, the AA batteries work while the main battery is being re-charged (so you don’t have to leave your door unlocked all day, like we had to do with the old Eufy lock, because we needed to be able to have people come and go). Overall, I truly LOVE this smart lock, and I expect to get many years of enjoyable use out of it (again, knock on wood!)
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Reviewed in the United States on August 9, 2025 by NS
Style: Palm Vein + Video
I bought this to replace a separate doorbell and lock, and it definitely cleans up the front porch. The 2K video is sharp, and I love that there’s no monthly subscription fee to see my clips. Installation was straightforward and took about 30 minutes with a standard screwdriver. Pros: • No Subscriptions Huge win. Local storage is the main reason I went with Eufy. • Camera View. The 180-degree lens actually lets me see packages sitting on the ground. • Build: The lock feels heavy and secure—doesn't feel like cheap plastic. Cons: • The Palm Reader: This is the headline feature, but it’s not perfect. It works about 85% of the time on the first try. If your hand is at a slight angle or if you’re standing too close, it usually fails and you have to reset and try again. It’s still faster than keys, but not as "instant" as I hoped. • Bulk: It’s a very large unit. If you have a screen door, double-check your clearances because this sticks out quite a bit. It’s a solid upgrade if you want to ditch your keys and your doorbell subscription in one go. Just be prepared to have a little patience with the palm sensor until you learn exactly where it likes your hand to be. Battery life is long
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Reviewed in the United States on January 21, 2026 by jared g
Style: Palm Vein + Video
I really liked the idea behind this, however the palm vein reader is very finicky and it takes multiple tries before you actually find the sweet spot for it to register your hand. The camera for the front door is slow to react and the picture is no where as clear as my other eufy devices, night vision is horrible and grainy. I have a wired flood light camera that is amazing and the app worked super fast and flawlessly with just that device. Once I added the smart lock and a wireless solar camera the app became ridiculously slow, locks up and takes forever to show notifications or actual live video. I’ve had to shut it down several times just to get it to work again.
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Reviewed in the United States on December 15, 2025 by Kate
Style: Palm Vein + Video
Totally recommend! The price is great
Reviewed in the United States on March 14, 2026 by Linda Brown
Style: Palm Vein + Video
Defective doesn’t work
Reviewed in the United States on March 8, 2026 by Robert N.
Style: Palm Vein + Video
This is not a five stars because the palm reader is slower than the fingerprint reader, concerning sturdiness it is much better than others Eufy lockers, but they need to improve the palm reader capability. Improve the palm reader and make it faster or change to a fingerprint reader.
Reviewed in the United States on March 31, 2026 by Silvio Perissinotti
Style: Palm Vein + Video
Love this lock and camera! it was easy to install, and the set up was fast. great quality! i will say i wish there was a way to have 24/7 recording on these, but i understand that they dont because it would just drain the battery fast. aside from that, the battery life one this has been great. it's been about 3 months since i had it on and the battery is only at about 80% still. it has auto locking to it, but i wish there was a quick way to turn that off instead of having to go into the settings to turn that off.
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Reviewed in the United States on April 4, 2026 by Chris Walker