---
product_id: 722783920
title: "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"
brand: "eufy security"
price: "¥82104"
currency: JPY
in_stock: false
reviews_count: 5
url: https://www.desertcart.jp/products/722783920-eufy-familock-s3-palm-vein-recognition-wi-fi-smart-lock
store_origin: JP
region: Japan
---

# 6 months rechargeable + AAA backup IP65 waterproof for all weather 0.1s ultra-fast palm vein unlock 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

**Brand:** eufy security
**Price:** ¥82104
**Availability:** ❌ Out of Stock

## Summary

> 🔐 Unlock the future with a touch—security that’s smarter, faster, and effortlessly you.

## Quick Answers

- **What is this?** 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 by eufy security
- **How much does it cost?** ¥82104 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/722783920-eufy-familock-s3-palm-vein-recognition-wi-fi-smart-lock)

## 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

- • **Palm Vein Precision:** Experience near-perfect 99.99999% secure palm vein recognition unlocking in just 0.1 seconds—your unique key to effortless access.
- • **Dual Power Resilience:** Stay worry-free with a rechargeable battery lasting up to 6 months plus emergency AAA backup for an extra month—power outages won’t slow you down.
- • **Weatherproof Durability:** IP65 waterproof rating ensures your smart lock performs flawlessly rain or shine, keeping your home secure in any climate.
- • **Seamless Smart Home Sync:** Integrates flawlessly with Matter, Apple HomeKit, Alexa, Google Home, and SmartThings for a privacy-first, voice-controlled security upgrade.
- • **ANSI/BHMA Grade 1 Security:** Top-tier deadbolt strength certified to Grade 1 standards—because your front door deserves professional-grade protection.

## Overview

The eufy FamiLock S3 is a cutting-edge Wi-Fi smart deadbolt featuring ultra-fast, 99.99999% accurate palm vein recognition for keyless entry. It boasts a dual power system with a 6-month rechargeable battery plus AAA backup, ANSI/BHMA Grade 1 security certification, and IP65 waterproof durability. Fully compatible with major smart home ecosystems including Matter, Apple HomeKit, Alexa, and Google Home, it offers seamless voice control and auto-lock functionality for a next-level, privacy-first home security experience.

## Description

eufy Familock S3

Review: 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.
Review: 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.

## Features

- Palm Vein Unlocking: Advanced Security with 99.99999% Accuracy. Achieve recognition in just 0.1 seconds with secure, forgery-proof palm vein technology. This feature ensures maximum security based on your palm's unique vein patterns. Your palm vein data is stored locally on the lock, keeping your privacy entirely in your hands.
- Dual Power Supply System: Stay powered with a rechargeable battery offering up to 6 months of full functionality, plus an emergency set of 4 AAA batteries for an extra month of essential functionality in case of power outages.
- Home Automation with Matter & Apple Home: Seamlessly compatible with the eufy Ecosystem and HomeBase 3 for advanced AI features and enhanced security. Supports Matter for easy, secure connections with Apple Home, Google Home, Alexa, and SmartThings. Enjoy a privacy-first, simple, and compatible smart home experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DTHVNNXQ |
| Brand | eufy Security |
| Colour | Light Gray |
| Connectivity Protocol | Wi-Fi |
| Control Method | App |
| Controller Type | Apple HomeKit, Amazon Alexa, SmartThings, iOS, Android |
| Included Components | Lock |
| Item Dimensions LxWxH | 7.8 x 3.1 x 20 Centimeters |
| Item Weight | 2 kg 450 g |
| Item dimensions L x W x H | 7.8 x 3.1 x 20 Centimeters |
| Item model number | T85V0 |
| Lock Type | Deadbolt |
| Manufacturer | eufy |
| Material | Stainless Steel |
| Model Name | T85V01Y1 |
| Number of Pieces | 1 |
| Product Dimensions | 7.8 x 3.1 x 19.99 cm; 2.45 kg |
| Recommended Uses For Product | Securing residential front doors |
| Shape | Rectangular |
| Special Feature | Auto-Lock |
| Style | Video Lock without Screen |
| UPC | 194644232672 |

## Product Details

- **Brand:** eufy Security
- **Item dimensions L x W x H:** 7.8 x 3.1 x 20 Centimeters
- **Lock Type:** Deadbolt
- **Material:** Stainless Steel
- **Special Feature:** Auto-Lock

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/31H56LbMNqL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/411HplFezgL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/41674wWcGuL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/41pJh1uvsbL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/41uZocKo5EL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Review
*by S***J on 25 November 2025*

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.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 11 November 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.

### ⭐⭐⭐⭐⭐ Review
*by J***. on 24 October 2025*

So far I’m very impressed and it’s a very good product. The App was easy to setup . I had a bit of a problem with the key unlocking door but I think I got it sorted out. I haven’t set up the the palm entry yet, but soon I love the fact that it comes with a rechargeable battery and has a backup as well. I highly recommend this Lock.

## 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 Japan*
*Store origin: JP*
*Last updated: 2026-03-17*