best smart door lock for home

Redefining Keyless Entry: This 3-in-1 smart lock integrates a security camera, two-way audio doorbell, and a smart deadbolt. Make calling, verifying, and unlocking a seamless, keyless entry process entirely under your control.
Versatile Keyless Entry: Experience professional-grade convenience with multiple unlocking options. This smart lock supports APP control, fingerprint, PIN codes, voice, and physical backup keys.
App Management & Control – Smart & Simple: Go beyond just unlocking and video. Centrally manage users, review access logs, and configure all smart lock and video doorbell settings effortlessly within the dedicated app.
More Than a Lock: Your Online Security Camera. With built-in Wi-Fi(Just connect to 2.4GHz WiFi), you can monitor your doorstep in real-time via the app. Equipped with infrared + radar sensors for motion detection and automatic recording (32GB built-in storage for loop recording; cloud storage upgrade available).
Powerful Video Doorbell Camera: Features a wide 172° vertical field-of-view lens for complete coverage – check the video doorbell feed before answering. Advanced night vision ensures clear visitor identification, even in total darkness.
Built Tough: Rated IP65 for water resistance and operates reliably in extreme temperatures (-4°F to 140°F / -20°C to 60°C). Backed by the durability of BHMA Grade 3 certification.
Quick 15-Minute Installation: Simple setup for your new smart lock. Pre-Installation Tip: Measure your door before making a purchase.(Size requirements: ① Lock hole diameter 38~54mm, ② The hole center to the door edge is 60 or 70mm, ③ Door thickness 35 mm- 55 mm.)
Powerful Year-Long Battery: Equipped with a massive 10,000mAh rechargeable battery delivering up to a year of service. Receive low-battery alerts and warnings. Even when powered off, use the Type-C emergency power port to temporarily unlock your door. This keyless entry system ensures you’re never locked out.(Note: The emergency port is for temporary power only and does not support battery charging.)
Exceptional Support & Assurance：Our dedicated support team is available 24/7 after-sales email service to assist you. LNDU offers a 30-day money-back and 18-month assurance, and lifetime technical support, Please do not hesitate to tell us if you need our help. Our system is currently upgrading the Android app, if you are an Android customer, please contact customer service who will send you a QR code to download.

✔ Fast Fingerprint Recognition – Unlocks in seconds with high-precision biometric technology.
✔ Multiple Unlocking Methods – Access via fingerprint, passcode, RFID card, or backup mechanical
✔ Auto-Locking & Security Alerts – Automatically locks after use
✔ User Management System – Register multiple fingerprints & passcodes for family members or employees.
✔ Sleek & Durable Design – Premium metal build with a modern aesthetic.
✔ Low Battery Alert & Emergency Power: Get notified when the battery is low, and use a USB power bank for emergency unlocking.
✔ Easy DIY Installation – Fits most standard doors with a simple setup process.

Smart digital lock with advanced encryption technology
Multiple access options including PIN, card, and fingerprint
Durable construction designed for long-term security
Stylish and modern design suitable for all interiors
Perfect for enhancing home and office safety