FamiLock S3 Max | eufy's 1st Palm Vein Smart Lock

The Ultimate FamiLock

Smarter, Safer, and Longer-Lasting

Designed for Every Family Member

Unlock the Future
with Your Palm

Just Wave to Unlock

Palm Vein Technology

Palm vein recognition uses infrared light to capture unique and un-replicable vein patterns beneath the skin, providing a high level of security.

More Accurate Than
Fingerprints

99.99999%*
Accuracy

Unaffected by age or physical conditions.

*Based on eufy laboratory data.

Palm Vein Recognition
A Giant Leap Forward

Wave to Unlock

＜0.1s*
Faster than Fingerprint Reading

*Based on eufy laboratory data following palm vein operation protocols.

Lightning-Fast Access

Identifies your palm in under 0.1 seconds with advanced global exposure CMOS technology for instant unlocking.

Open On the Move

No need to stop—unlock seamlessly, even while walking.

Built for Real Life

Handles motion blur and complex backgrounds effortlessly.

Accurate and Reliable
for Everyone

99.99999%*Accuracy

*Based on eufy laboratory data.

Palm Vein Recognition

Works flawlessly, unaffected by skin conditions or changes.

Inclusive Design

Works equally well for seniors with damaged skin or kids with soft hands.

Unbeatable Accuracy

Achieves a near-perfect 99.99999%* success rate for instant, reliable access.

One Solution
Any Hand

360°Precision

Adaptive Range

Effortlessly recognizes hand sizes from 6 cm to 30 cm using a 158.5° wide-angle 4P lens.

360° Precision

Corrects distortion for flawless recognition from any angle.

Consistent Performance

Effortless and reliable, no matter the hand size or position.

Instant Unlocking
in Any Light

Works in 100,000 Lux Sunlight

Bright Light Ready

Designed to work in intense sunlight.

AI-Powered Recognition

Uses advanced AI algorithms for improved accuracy.

850 nm Filtering

Ensures smooth operation even in 100,000 lux sunlight.

Why is Palm Vein
Recognition Safer?

Truly Unique

Just like no two leaves are the same, each palm vein pattern is unique, ensuring unmatched security—even for identical twins.

5x More Than Fingerprints

50000Data Points

More Data, Greater Accuracy

Captures over 50,000 data points—1.6x more than facial recognition and 5x more than fingerprints.

Contactless and Difficult to Replicate

Contactless unlocking ensures that palm vein information cannot be copied, while local data storage guarantees enhanced security and privacy.

Head-to-Toe Night
Vision Clarity

Crystal-Clear Vision,
Day and Night

See It All, Anytime

Advanced Night Vision + HDR

Ultra-HD Resolution

180°

Full Coverage (1:1 FOV)

HDR

For Balanced Lighting

Upgraded Coverage for
Every Angle

Capture the Whole Picture

Experience 2K HD full-angle viewing with 150° horizontal, 150° vertical, and 180° diagonal coverage. Capture clear images of packages on your doorstep and users up to 2.5 meters (8.2 ft) tall. Anti-distortion lenses and algorithms ensure a wider natural view, while HDR enhances image clarity in various lighting conditions.

Remote Video Intercom

When a visitor presses the doorbell, the mobile app instantly notifies you with a video call. Whether you're at home or away, easily communicate with visitors and control access anytime, anywhere.

See Who's at the Door

Upgrade to a 4-Inch Internal Video Screen

Move on from your traditional peephole with a 4-inch, 1080p internal video screen, delivering crystal-clear live footage in just 1 second, day or night.

Easy Viewing,
No Fuss

Instant Access
Made Simple

Easily see who's at your door through the mobile app or the internal video screen. This dual-access feature is convenient for the whole family, including kids and seniors.

PowerDuo^™:
Double Power,
Double
Confidence

Enhanced Battery Power
for Longer Usage

Eco-Friendly
Rechargeable Battery

Now with 50% more capacity than the previous model, delivering seamless performance all year.

Up to
5 months
On a Single Charge

50%
More Capacity Than Previous Video Smart Lock

Note: Based on eufy lab data with 10 daily unlocks.

Reliable Power ,
Always

Backup AAA Batteries

Features a 15,000mAh rechargeable lithium battery and 4 AAA batteries for backup to keep your lock running smoothly during recharges.

Note: When using backup power, palm vein and camera functions are disabled to save battery. Please unlock with your password instead.

Smarter Power,
Longer Life

Energy-Saving Sleep
Mode

Automatically minimizes power usage, extending battery life by an additional 20%. (This feature is not yet available but will be provided via an OTA update by the end of June.)

Note: Based on eufy laboratory data.

Real-Time Power
Monitoring

Go to Power Manager in the app to check the status of lithium and AAA batteries anytime, keeping you in control.

Always Secure,
Never Locked Out

Emergency Power
Options

Stay worry-free with a physical key backup and an emergency power interface for ultimate reliability.

Note:For emergency power supply only. It is not intended for charging the battery and does not have a communication circuit for data transfer.

AI-Powered Security for
Total Peace of Mind

Dual Motion Sensors

Monitors up to 6 meters (19.6 ft) with a 95% reduction in
false alarms for true security.

95%

Reduction in
False Alerts

Stay Informed

Real-time notifications* on every door activity, all accessible in the event history, keep you connected for total peace of mind.

Loitering Detection

Detects and notifies you of any suspicious activity around your property.

Leaving and Returning Alerts*

Stay informed with instant notifications when anyone leaves or returns home.

*Push notifications with thumbnail previews require thumbnail preview images to be temporarily stored in the cloud.

Smarter Integration with Matter and Apple Home

Universal
Compatibility

Seamlessly integrates with Apple Home, Google Home, Alexa, and SmartThings. Matter support ensures cross-platform compatibility, while Matter over Wi-Fi provides faster, more reliable connections.

Enhance with the eufy Ecosystem

Pair with eufy HomeBase 3 for advanced AI that detects people, vehicles, pets, and more, along with secure local storage* for access logs and video footage, enhancing privacy and automation.

Human
Recognition

Human
Detection

Vehicle
Detection

Pet
Detection

All Other
Motions

*If you choose to use cloud-based features such as cloud storage or push notifications with thumbnail previews, videos or thumbnail previews will be sent to the cloud as needed to provide your selected features.

Advanced Security for Your Family’s Peace of Mind

Smart Auto-Locking

Automatically locks the door as soon as it’s closed, offering convenience and security without a second thought.

Wi-Fi 6 Connectivity

Enjoy faster, more secure connections for real-time responsiveness and seamless control.

EMP Resistance

Your lock stays functional and keeps you protected when you need it most—even during electromagnetic disruptions.

ANSI/BHMA Grade 1

With top-tier ANSI/BHMA Grade 1 certification, this smart lock meets rigorous safety standards to ensure maximum home protection.

Ready for All Weather

Works from -22°F to 158°F (-30°C - 70°C), and the IP65 rating keeps your home secure, whatever the weather.

Find the Perfect Fit for Your Home

eufy FamiLock Series

S3 Max

Beta User Feedback

Beta User

First impressions: I appreciated the camera clarity and the ability to see head to toe. I am extremely intrigued by the palm sensor, especially if it works for young school-aged kids as mine had issues with the fingerprint sensors.

Beta User

It's a pretty solid product. For my family, the palm vein scanning is accurate and fast.

Beta User.

I find it really convenient having both batteries and the rechargeable battery.