Xiaomi Smart Door Lock M40 Pro Face Recognition Palm Vein Fingerprint Electronic Anti-theft Lock

Bluetooth 5.3

NFC (supports Xiaomi and REDMI brand devices with NFC)

Wi-Fi IEEE 802.11b/g/n/ax 2.4GHz

5-inch (4.94-inch) indoor screen with approximately 40% larger visible area than previous generation

AI Palm Vein Recognition (contactless, 9-20 cm distance)

AI 3D Structured Light Face Recognition (1.2-2 m distance)

AI Fingerprint Recognition (supports ages 7 to 70)

Long-term password

Periodic/one-time password

Remote unlocking via Xiaomi Mijia App

Mobile phone Bluetooth unlocking

Emergency mechanical key

NFC door card (requires separate purchase)

Additional unlocking devices (sold separately)

AI Palm Vein Recognition developed with Tencent Youtu Lab; uses near-infrared scanning for secure, contactless identification; false rejection rate <1.5%, false acceptance rate <0.0001%, recognition speed <1 second

AI 3D Structured Light Face Recognition with BCTC financial-grade security certification; supports dynamic face capture day and night; false rejection rate <2%, false acceptance rate <0.0001%

AI Fingerprint Recognition with learning algorithm improving over time; supports 7-70 years old; 200,000 durability tests on fingerprint sensor

AI Dual-Camera Panoramic Door Viewer

Bottom blind spot monitoring camera

AI algorithms for person, package, and child detection

Dynamic night vision imaging system with 6 night vision fill lights

Micro-light full-color night vision and infrared ultra-clear night vision modes

Real-time alerts for loitering, package changes, child leaving, and abnormal presence

Self-developed noise-reducing fully automatic lock body with multiple noise reduction designs; door closing noise reduced by 12dB, door opening noise reduced by 13dB compared to previous generation

Built-in sensors monitor lock status in real time (locked, unlocked, door not closed, door ajar, timeout)

C-level direct-insert lock cylinder penetrating the lock body for enhanced mechanical security

Anti-pry panel design and reinforced structure to resist tampering and forced entry

Dual-mode intelligent power supply system combining lithium batteries and alkaline batteries

Indoor and outdoor Type-C charging ports for flexible charging options

Low battery alerts at ≤5%

Automatic switch to alkaline battery power when lithium battery is depleted

Emergency power supply via power bank or wireless reverse charging supported (accessories not included)

Xiaomi HyperOS integration and Xiaomi SurgeLink ecosystem support for extensive smart home device connectivity and customized automation scenarios

Remote unlocking and video intercom via Mijia App; requires device software updates and same Xiaomi account family setup

WeChat audio-video intercom support (does not support remote unlocking)

Voice broadcast welcome message and automatic lighting and curtain control upon unlocking

Fingerprint sensor tested for 200,000 uses

Mechanical lock tested for 150,000 open/close cycles

Certified by CQC, SRRC, BSI Kitemark, EAL4+ financial-grade security, and other authoritative institutions

Front panel ×1

Rear panel ×1

Lock body ×1

Door strike plate ×1

User manual ×1

Countersunk screws ×8

Four AA alkaline batteries ×4

Two lithium batteries ×2

Installation template ×1

Accessory pack ×1

Lock cylinder key set ×1

NFC unlocking supports only Xiaomi and REDMI brand devices with NFC function; wearable devices require Mijia App version 3.37.0 or above and binding

Unlocking performance may vary due to environmental factors and user conditions; biometric recognition data are laboratory test results for reference only

Some unlocking devices and NFC cards require separate purchase

Installation service coverage varies by region; consult Xiaomi customer service for details

Product images, data, functions, and specifications are for reference only and subject to change without notice; actual product usage experience prevails