---
product_id: 719185964
title: "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"
brand: "eufy security"
price: "$610.10"
currency: USD
in_stock: true
reviews_count: 13
category: "Eufy Security"
url: https://www.desertcart.us/products/719185964-smart-lock-familock-s3-with-palm-vein-recognition-keyless-entry
store_origin: US
region: United States of America
---

# 2K HDR ultra-wide camera 4 months battery + backup 99.9% palm vein accuracy 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

**Brand:** eufy security
**Price:** $610.10
**Availability:** ✅ In Stock

## Summary

> 🔐 Unlock the future of home security with a touch of your palm!

## Quick Answers

- **What is this?** 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 by eufy security
- **How much does it cost?** $610.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/719185964-smart-lock-familock-s3-with-palm-vein-recognition-keyless-entry)

## Best For

- eufy security enthusiasts

## Why This Product

- Trusted eufy security brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unstoppable Power Backup:** Stay secure for up to 5 months with rechargeable and AAA battery dual system.
- • **Next-Gen Palm Vein Security:** Unlock your door in 0.6 seconds with forgery-proof biometric precision.
- • **Auto-Lock & Intelligent Sensors:** Reduce false alarms by 95% with PIR & Radar dual sensors and enjoy hands-free auto-lock convenience.
- • **Smart Home Ready & Privacy-First:** Seamlessly integrates with Apple Home, Alexa, Google, and Matter for future-proof automation.
- • **Crystal-Clear 2K HDR Doorbell Camera:** Monitor every visitor and package with a 150° ultra-wide, low-light optimized lens.

## Overview

The eufy Security Smart Lock FamiLock S3 combines cutting-edge palm vein recognition with a 2K HDR doorbell camera and dual power backup, delivering ultra-secure, keyless entry and crystal-clear monitoring. Designed for seamless integration with major smart home platforms and equipped with intelligent sensors, it offers a privacy-first, no-monthly-fee solution that keeps your front door safe and smart.

## Description

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Review: 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.
Review: Excellent door camera. - Love this lock. It’s so convenient! We’ve been using it for almost a year. Works great. The camera is nice and crisp. The field of view is great. Battery charge holds up good. Easy to install and operate. Autolock - great feature! We have a cheaper model on our interior garage door. Love this brand.

## 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 spots—perfect 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 access—keeping 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 SmartThings—giving 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DTHVNNXQ |
| Additional Features | 2K Full HD Head-to-toe View, Auto-Lock, Dual Power System, Unlock with Palm, Works with Smart Home Platforms |
| Best Sellers Rank | #5,152 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #28 in Deadbolts |
| Brand | eufy Security |
| Brand Name | eufy Security |
| Color | Black |
| Control Method | App |
| Controller Type | Apple HomeKit, Amazon Alexa, SmartThings, iOS, Android |
| Customer Reviews | 4.2 out of 5 stars 242 Reviews |
| Included Components | Interior Assembly, Rechargeable Battery & AAA Batteries x 4, Exterior Assembly, Physical Keys, Deadbolts & Deadbolts Screws |
| Item Dimensions | 3.07 x 1.22 x 7.87 inches |
| Item dimensions L x W x H | 3.07 x 1.22 x 7.87 inches |
| Lock Type | Deadbolt |
| Manufacturer | eufy |
| Manufacturer Part Number | T85V0 |
| Material | Metal |
| Material Type | Metal |
| Model Name | T85V01Y1 |
| Model Number | T85V0 |
| Number of Pieces | 1 |
| Shape | Rectangular |
| Smart Home Compatibility | Smart Home Compatible |
| Special Feature | 2K Full HD Head-to-toe View, Auto-Lock, Dual Power System, Unlock with Palm, Works with Smart Home Platforms Special Feature 2K Full HD Head-to-toe View, Auto-Lock, Dual Power System, Unlock with Palm, Works with Smart Home Platforms See more |
| Style | Palm Vein + Video |
| Style Name | Palm Vein + Video |
| UPC | 194644232672 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** eufy Security
- **Item dimensions L x W x H:** 3.07 x 1.22 x 7.87 inches
- **Lock Type:** Deadbolt
- **Material:** Metal

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/510IWzoRYDL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/81LFfZlwdLL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/61WiKKpM8IL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/71exCfvhbnL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/61GEBHzshcL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: What kind of doors are eufy FamiLock S3 compatible with?**
A: Compatible with most standard doors, door thickness:35-55 mm. Do not recommend to install on the door that has a storm door in front, which might block the view. If your latch recess is round, contact eufy Support to get a round drive-in faceplate.

**Q: Which eufy devices and systems are eufy FamiLock S3 compatible with?**
A: It supports connection with Homebase 3 and it is not compatible with HB2. With Homebase, it links to other eufy cameras, letting you remotely lock/unlock via live view on any device.

**Q: Does eufy FamiLock S3 support external integration with other smart home platforms?**
A: It supports the Matter protocol. Through Matter, you can work with Apple Home to integrate into the Apple ecosystem. Currently, it cannot be connected to HB3 and external ecosystem gateways simultaneously. eufy is on standby for a beta solution.

**Q: What should be noted when using the palm vein unlocking function?**
A: You can store palm vein information for 50 family members. The palm vein can only be used to unlock, not to lock.

**Q: What is the power supply method of this door lock? What happens if the battery runs out?**
A: Our door lock uses a dual power supply with lithium and standard batteries. When the lithium battery is low, standard batteries provide emergency power, allowing PIN code access to lock/unlock, while other functions are unavailable.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Impressive and great features
*by A***R on November 11, 2025*

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.

### ⭐⭐⭐⭐⭐ Excellent door camera.
*by S***Y on April 5, 2026*

Love this lock. It’s so convenient! We’ve been using it for almost a year. Works great. The camera is nice and crisp. The field of view is great. Battery charge holds up good. Easy to install and operate. Autolock - great feature! We have a cheaper model on our interior garage door. Love this brand.

### ⭐⭐⭐⭐⭐ LOVE IT! Great Upgrade from our Fingerprint Smart Lock!
*by N***S on August 9, 2025*

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!)

## Frequently Bought Together

- eufy FamiLock S3, Palm Vein Recognition Wi-Fi Smart Lock, 3-in-1 Keyless Entry, Security Electronic Deadbolt for Front Door, ANSI/BHMA Grade 1, Auto Lock, Voice Control, IP65 Waterproof
- eufy Security HomeBase S380 (HomeBase 3),eufy Edge Security Center, Local Expandable Storage up to 16TB, eufy Security Product Compatibility, Advanced Encryption,2.4 GHz Wi-Fi, No Monthly Fee

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-06-06*