HIDALIFE 310FL 4-in-1 Smart Door Lock with Fingerprint & Bluetooth Keyless Entry

4-in-1 Smart Access

Choose from Bluetooth, Gateway, Fingerprint, or Mechanical Key to unlock your door. Set the auto-lock timer from 2–99 seconds to match your routine. With the app, you can share, pause, or remove access permissions and check door lock activity logs anytime.

Fast & Reliable Fingerprint Access

Unlock your door in just 0.3 seconds with the advanced fingerprint sensor, featuring 99%+ recognition accuracy for fast, reliable entry. Store up to 50 fingerprints, making it a convenient choice for families, rental properties, and small offices.

Stay Powered When You Need It

A low-battery alert lets you know when it’s time to replace the batteries, helping prevent unexpected lockouts. If the batteries run out, use the USB-C emergency power port with a compatible power bank, phone, or laptop to temporarily power the lock and unlock the door—no long wait required.

One-Touch Passage Mode

Switch between Auto-Lock and Passage Mode with a simple physical button—no complicated programming required. Press the button to keep the door unlocked when needed, or switch back to auto-lock for everyday security. Easy, instant control whenever you need it.

Fits Most Standard U.S. Doors

Designed for most standard U.S. door setups with a 2-1/8" bore hole, 2-3/8" or 2-3/4" backset, and 1.37"–2" door thickness. Installation is quick and DIY-friendly—just use a screwdriver and install it in about 15 minutes, with no locksmith needed.

Tips for Reliable Fingerprint Access

For children, seniors, or anyone whose fingerprints may change or wear down over time, we recommend re-enrolling fingerprints every few months for more reliable access. For seniors or users with worn fingerprints, registering multiple fingers can provide more options and improve everyday unlocking convenience.