Standard lock body, King Lock body, Wangli lock body (with some requiring modification)
Installation Limitations
Not suitable if door panel width <110 mm, lock body eccentric distance (L1 or L2) <20 mm, or inner-outer door spacing <160 mm
AI 3D Facial Recognition with liveness detection
AI Palm Vein Recognition (contactless palm swipe)
Fingerprint Recognition
Mobile Phone Bluetooth Unlock
NFC Device Unlock
Long-term Password
Remote Unlock via App
Emergency Mechanical Key
Other biometric and remote unlocking options
Self-developed next-generation noise-reducing fully automatic lock body with integrated safety sensors
Built-in independent security chip encryption
Virtual password input to prevent password leakage
NFC device encryption to prevent simulation and duplication
Additional details
Multiple alarm notifications
panel tampering, door not closed, door ajar, low battery, duress fingerprint unlock, multiple failed attempts
C-level direct-insert lock cylinder penetrating the lock body for enhanced physical security
Multi-sensor monitoring with real-time alerts
Financial-grade hardware security chip
Communication encryption to prevent malicious attacks and hacking
Anti-black-box interference protection
Child lock and deadbolt functions
Dual-mode intelligent power system combining
One 5000mAh or 6870mAh lithium battery
Four AA alkaline batteries
Automatic switch to alkaline batteries when lithium battery is depleted
Indoor and outdoor Type-C ports for emergency power supply and charging
Wireless reverse emergency power supply via mobile phone outdoors
Additional details
Battery life
Approx. 4 months (lithium battery) and 6 months (alkaline batteries)
Low battery warning at ≤5% power
AI Smart Cat Eye with dual cameras (300MP + 200MP) and wide-angle lenses (120° and 152°)
Indoor 3.97-inch HD visual screen supporting cross-screen linkage with mobile phones, TVs, and other devices
Real-time video intercom and remote unlocking via Mi Home App and WeChat App
Long-duration abnormal stay recording and dynamic night vision imaging system with 4 high-energy fill light modules
Micro-light full-color night vision and infrared night vision modes
Visitor doorbell triggers automatic screen wake-up and pop-up notifications
Voice-changing intercom with multiple voice options (original, clown, uncle)
Multi-device linkage and remote management via Mi Home App
Supports Xiaomi HyperOS and Connect protocols
Customizable smart scenarios based on family habits
Cloud storage support and remote alarm notifications
Large HD indoor screen for visitor monitoring and door status
Supports remote video calls and unlocking via smartphone and smart devices
One-stop management through Mi Home App with shared device permissions
Supports WeChat video intercom for family members
Integrated die-cast body with matte finish for fingerprint resistance and stain protection
Symmetrical and minimalist design suitable for various door styles
Anti-pinch hand guard for safe door operation
Durable and reliable mechanical and electronic components
Product images, data, functions, performance, specifications, user interface, and other information are for reference only; actual product usage may vary.
The product supports extensive smart home device connectivity and integration.
Emergency mechanical key included.
Recommended to fully charge lithium battery before first use.
Xiaomi Smart Door Lock 4 Pro (or 4 Pro Dual-Camera Edition)
Emergency mechanical key
Installation accessories and user manual
Please refer to the actual product for detailed installation requirements and compatibility.
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