eufy Security FamiLock S3 Max Video Smart Lock

BH #EUE85V0JY1 • MFR #E85V0JY1
Print
eufy Security FamiLock S3 Max Video Smart Lock
Key Features
  • 3-in-1 Doorbell, Camera & Smart Lock
  • 2K Camera Resolution
  • 4" Color Display
  • Entry via Palm Vein, Passcode & Key
Implement front-door surveillance and keyless entry for your home, rental property, or business with the FamiLock S3 Max Video Smart Lock from eufy Security. This Wi-Fi and matter compatible unit features a 3-in-1 surveillance solution that includes an integrated camera that captures 2K resolution video, a video doorbell, and a smart lock. The smart lock offers multiple ways of unlocking, such as palm vein, the eufy Security app, passcode, voice control, or a physical key.

Remote unlocking and management from anywhere is possible via the eufy Security app for iOS and Android. Compatibility with Amazon Alexa, Google Assistant, SmartThings, and Siri enable seamless voice commands. Additionally, Matter compatibility enables you to integrate the lock into you favorite Matter-certified ecosystem for a unified smart home. The FamiLock S3 Max is IP66 rated for safe outdoor use.

More Details
Top Seller
In Stock
No Store Display
Free Expedited Shipping
Protect Your Gear
Add a protection plan from $28.00
Ask an Expert
800-606-6969

eufy Security FamiLock S3 Max Overview

Implement front-door surveillance and keyless entry for your home, rental property, or business with the FamiLock S3 Max Video Smart Lock from eufy Security. This Wi-Fi and matter compatible unit features a 3-in-1 surveillance solution that includes an integrated camera that captures 2K resolution video, a video doorbell, and a smart lock. The smart lock offers multiple ways of unlocking, such as palm vein, the eufy Security app, passcode, voice control, or a physical key.

Remote unlocking and management from anywhere is possible via the eufy Security app for iOS and Android. Compatibility with Amazon Alexa, Google Assistant, SmartThings, and Siri enable seamless voice commands. Additionally, Matter compatibility enables you to integrate the lock into you favorite Matter-certified ecosystem for a unified smart home. The FamiLock S3 Max is IP66 rated for safe outdoor use.

Additional Details
  • Unlock via palm vein, eufy Security app, passcode, voice control, or physical key
  • 99.9% accurate palm vein recognition accuracy
  • 4-10" palm vein read range
  • Recognizes palm veins in just 0.6 seconds
  • Stores palm vein info of up to 50 people
  • Palm vein can only be used to unlock, not to lock
  • Automatic locking with built-in door sensor
  • Dual motion detection from up to 19.6' away
  • Dual motion detection minimizes false motion alarms by up to 95%
  • Compatible with HomeBase 3 hub (available separately)
  • HomeBase 3 provides centralized management for the FamiLock S3 Max and the rest of your eufy ecosystem (additional devices available separately)
  • eufy Security app enables remote management, alerts in real time, and event logs/history
  • Voice control via Amazon Alexa, Google Assistant, SmartThings, Siri, or any other Matter-compatible assistant
  • 4" 1080p internal display
  • Uses four AAA batteries as a battery backup
  • Monitor battery status in real time
  • HDR support
UPC: 194644290276

eufy Security FamiLock S3 Max Specs

Key Specs
Access Mode
Palm Vein, Physical Key, PIN Code, Remote Hub, Wi-Fi
Matter Support
Yes: Wi-Fi Only
Communication Protocol
Apple HomeKit
Virtual Assistant
Works with Alexa, Works with Google Assistant
Battery Type
1x Unspecified Rechargeable (Removable)
Access Mode
Palm Vein, Physical Key, PIN Code, Remote Hub, Wi-Fi
OS Compatibility
Android/iOS
Matter Support
Yes: Wi-Fi Only
Communication Protocol
Apple HomeKit
Virtual Assistant
Works with Alexa, Works with Google Assistant
Wireless
Wi-Fi
*Built-In
Battery Type
1x Unspecified Rechargeable (Removable)
Estimated Battery Life
5 Months
Backup Power Source
USB
Supported Door Thickness
1.4 to 2.2" / 35 to 55 mm
Door Specs
1.5 to 2.1" / 38 to 54 mm (Cross Bore Hole)
2.4 to 2.8" / 60 to 70 mm (Backset)
Operating Conditions
-22 to 158°F / -30 to 70°C
Certifications
ANSI, BHMA
Environmental Resistance
Dust/Weather/Water-Resistant (IP65)
Dimensions
7.9 x 3.1 x 1.3" / 200 x 78 x 34 mm (Interior Assembly)
6.9 x 2.7 x 1.1" / 175 x 68 x 28 mm (Exterior Assembly)
Packaging Info
Package Weight
5.53 lb
Box Dimensions (LxWxH)
8.8 x 7.3 x 5.8"

eufy Security FamiLock S3 Max Reviews

Very cool

By keviny9_5451
Rated 5 out of 5
Date: 2025-06-01

[This review was collected as part of a promotion.] The palm unlock feature is seriously cool — feels like something out of the future. Just walk up, hold out your hand, and the door unlocks like magic. One thing I really like is the camera notifications. I get alerts right away when it senses someone at the door, even before they ring the bell. It’s peace of mind, especially if I’m not home or expecting a delivery. Setup was really straightforward — hardware install took maybe 15–20 minutes, and pairing it in the app was smooth. If you’re looking for a smart lock that combines cool tech with real-world convenience, this one nails it. Definitely feels like the most complete package out there right now.

Smart, secure, and effortlessly convenient

By laraibbb_3648
Rated 5 out of 5
Date: 2025-05-01

[This review was collected as part of a promotion.] I absolutely love the Eufy Security S3 Smart Lock — it’s one of the best smart home upgrades I’ve tried. Installation was quick and straightforward, even though it didn’t come with printed instructions. Thankfully, the Eufy Security app and online resources made setup simple, and I had everything running smoothly in no time. One of the standout features for me is how powerful and user-friendly the app is. I can lock and unlock the door remotely right from my phone, which is incredibly convenient when I need to let someone in while I’m not home. The app also makes it easy to add and manage other users, so family and friends can have secure access without needing a physical key. Another huge bonus is the built-in video and motion detection. I can see a live view of my front door anytime, and the app records any motion it detects. The two-way audio is fantastic, I can talk to anyone standing at the door and hear their response, whether it’s a delivery person, a visitor, or just to give quick instructions without opening the door. The palm-reading technology is a cool, futuristic touch. While it’s not 100% perfect every single time, it works well and makes unlocking the door quick and hassle-free without keys or even my phone.

See any errors on this page?
Whatever You Need, We've Got It