eufy FamiLock S3 Max + eufy HomeBase™ S380 (HomeBase™ 3)
- Palm Vein Unlocking: Achieve recognition in just 0.1 seconds with secure, forgery-proof palm vein technology. Your palm vein data is stored locally on the lock, keeping your privacy entirely in your hands.
- This all-in-one device: This smart lock features a 2K HD night-vision camera, a 150° wide-angle video doorbell, and a smart lock with real-time alerts—keeping your home secure.
- The Rear Lock Video Screen: The Video Screen lets you easily check the front door without an app, offering a simple, intuitive design perfect for seniors and children.
- Dual Power Supply System: With two batteries, enjoy up to 5 months of total usage, plus 4 AAA backup batteries for uninterrupted performance during power outages.
- Fast, Free Shipping On Orders Over $150
- Hassle-Free Warranty
- Lifetime Customer Support
What the Pros Say
LifeHacster
eufy's first smart lock that uses palm vein unlocking technology.
Shane Starnes
This has to be the coolest smart lock I have ever tried.
This Smart House
Featuring palm vein recognition, a 2K HDR camera, AI detection.
Common Pain Vein Recognition Errors
Pain Vein Recognition Guide
Overview
Advanced Security for Your Family's Peace of Mind
Specs
| Features | |
| Built-In Wi-Fi | Direct Wi-Fi |
| Unlock Methods | Palm Vein, App, Voice Control, Password, Keys |
| Built-In Video Doorbell | Y |
| Cam Resolution | 2K HDR |
Which Smart Lock Suits Your Home?
Which Smart Lock Suits Your Home?
FAQ
1. What kind of doors are eufy FamiLock S3 Max compatible with?
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.
2. What should be noted when using the palm vein unlocking function?
You can store palm vein information for 50 family members. The palm vein can only be used to unlock, not to lock.
3. What is the power supply method of this door lock? What happens if the battery runs out?
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.
1. Which eufy devices and systems are eufy FamiLock S3 Max compatible with?
It supports connection with Homebase™ 3 and is expected to be compatible with HB2 in Q2 of 2025. Without Homebase™, it links to other eufy cameras, letting you remotely lock/unlock via live view on any device.
2. Does eufy FamiLock S3 Max support external integration with other smart home platforms?
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.
