eufy Security FamiLock E34 Smart Lock, Palm Vein Recognition

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Product guide

eufy Security FamiLock E34 Smart Lock, Palm Vein Recognition

The eufy Security FamiLock E34 is a deadbolt smart lock with palm vein recognition and touchscreen controls. Its listing also describes built-in Wi-Fi, app-based remote access, and smart-home integration, while third-party ecosystem connections require a Matter-compatible hub.

At a glance

Palm vein entry is presented as an unlocking method, with up to 50 people’s palm information supported.
Built-in Wi-Fi is listed for app-based remote locking and unlocking without a bridge.
The listing describes control through Apple Home, Google Home, Alexa, and SmartThings using Matter, with a Matter-compatible hub required for third-party ecosystems.
The manufacturer claims up to 8 months of full functionality from the primary battery, with an integrated backup battery.

Price

$179.99Save 36%

Reference price: ~~$279.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Palm vein recognition provides a keyless unlocking option, and the listing says palm data is stored locally on the lock.
Built-in Wi-Fi supports remote control through the eufy app without a bridge.
The listing describes Matter integration with several major smart-home platforms, provided a compatible hub is available.
Manufacturer-stated installation compatibility covers most standard doors 35–55 mm thick.

Cons

The backup battery is described as maintaining palm and PIN-code access, not every lock function, when the main battery is low.

Technical specifications

8 specifications

Identity
Brand	eufy Security
Model	T85P0111
Lock type	Deadbolt
Color	Black

Unlocking and controls
Special features	Palm Vein, Touchscreen
Control methods listed	App, Gesture, Remote, Voice

Dimensions and installation
Dimensions listed	6.61 x 2.83 x 1.63 inches

Materials
Material listed	Metal

What to know before buying

The listing says palm vein recognition can unlock but cannot lock the door. Third-party smart-home connections require a Matter-compatible hub, and HomeKey is not supported. Check door thickness and clearance, especially if a storm door could block the reader. The stated battery runtime is a manufacturer claim, not a guaranteed duration.

What’s in the box

Included

Batteries
Lock

Who is it for?

A good fit for

Households seeking palm-vein unlocking alongside touchscreen access and app controls.
Buyers who want built-in Wi-Fi for remote app control without adding a bridge.
Smart-home users with a Matter-compatible hub who want to connect the lock to Apple Home, Google Home, Alexa, or SmartThings.

Less suited to

Buyers who require Apple HomeKey support.
Installations where a storm door may obstruct the palm reader or doors outside the stated 35–55 mm thickness range.

eufy Security FamiLock E34 Smart Lock, Palm Vein Recognition · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 239 ratings

5 stars66%66%
4 stars13%13%
3 stars10%10%
2 stars4%4%
1 star7%7%

Customer feedback describes the lock as functional and easy to install, with positive reports about palm recognition, battery life, convenience, and connectivity, including eufy camera compatibility. Speed experiences are mixed, and customers also report that the key-cover mechanism may not stay in place. For buyers choosing palm entry, feedback suggests considering both recognition speed and the reported cover concern alongside the listed app and biometric features.

Positive themes

Customers report straightforward installation and useful palm recognition.
Customers describe battery life and day-to-day convenience positively.
Some customers report positive connectivity, including compatibility with eufy cameras.

Negative themes

Customers report issues with the key-cover mechanism not staying in place.

Mixed feedback

Feedback on palm-reader speed varies, with reports ranging from fast recognition to slower-than-expected operation.

Frequently asked questions

Can palm vein recognition lock the door?

No. The listing says palm vein recognition is for unlocking only, not locking.

Does remote control require a separate bridge?

The listing describes built-in Wi-Fi for remote app control without a bridge. A Matter-compatible hub is required to connect to third-party smart-home ecosystems.

Does it support Apple HomeKey?

No. The listing explicitly says HomeKey is not supported.

What happens when the main battery is low?

The manufacturer describes an integrated backup battery that maintains palm and PIN-code access to unlock. It claims up to 8 months of full functionality from the primary battery, but that runtime is not a guarantee.

Will it fit my door?

The listing says it fits most standard doors 35–55 mm thick. It cautions against doors with a storm door in front if that blocks the reader.