eufy Security FamiLock S3 Palm Vein Smart Lock — Keyless Front Door, 2K HDR Doorbell, Built‑in Storage, No Monthly Fee

Upgrade your entryway with a palm-vein smart lock

The eufy Security FamiLock S3 blends a palm vein recognition system with a built‑in 2K HDR doorbell camera for a keyless, privacy‑mensed entry. Designed for front doors, it combines robust access control with clear visibility, thoughtful storage, and simple smart home compatibility—all without ongoing fees.

On‑device security and speed: Palm vein recognition delivers fast access in about 0.6 seconds, with data stored locally on the device to safeguard privacy while keeping entry seamless for trusted users. The system is paired with a BHMA Grade 1 hardware standard for dependable, durable performance at the door.

Crystal vision at the threshold: The integrated 2K HD camera uses an f/1.6 lens and HDR to capture vivid detail, even when lighting changes. Its ultra‑wide coverage (150° vertical, 150° horizontal, 180° diagonal) minimizes blind spots so you can see visitors and packages clearly from the doorstep to the sidewalk. Built‑in 16 GB storage keeps clips on‑device for quick review without cloud dependence.

Power that keeps you protected: A 15,000 mAh rechargeable battery supports months of operation, and four AAA backup cells extend uptime by roughly another month in a power outage. This dual power setup is designed to reduce downtime and maintain continuous security at the door.

Smart detection with fewer false alarms: Dual sensors (PIR and radar) work together to deliver faster access events while reducing false alerts, helping you focus on real activity at your entryway.

Future‑ready, privacy‑first connectivity: Seamless integration with Matter and Apple Home, Google Home, Alexa, and SmartThings is supported via the eufy ecosystem. Note: Matter cannot stream camera video yet; for the fullest experience, use the eufy App. Matter is compatible with HomeBase 3 for broader device pairing.

Whether you’re greeting a neighbor, approving a delivery, or granting access to a trusted service, the FamiLock S3 offers a confident, convenient solution for modern home entry—without monthly fees.