Xiaomi has expanded its flagship smart home security hardware with the official pre-order opening of the Xiaomi Smart Lock 5 Max in China, priced at $495 (3,529 yuan). Aimed at eliminating the friction of misread fingerprints and awkward physical keypads, the high-end digital lock introduces contact-free palm vein scanning alongside structured 3D face recognition to streamline front-door access for multi-generational households.
Beyond its core bio-authentication system, the hardware serves as a full-fledged smart doorbell and monitoring station. It combines an ultra-wide 192-degree 2K camera with an internal 5-inch color display, giving homeowners a clear real-time feed of their threshold while utilizing local artificial intelligence to distinguish routine foot traffic from delivered packages.
Contactless Bio-Authentication for Every Generation
Standard capacitive fingerprint scanners frequently struggle with worn prints on elderly family members or small, rapidly growing hands on young children. To solve this everyday frustration, the Smart Lock 5 Max incorporates 12 distinct unlocking methods, anchored by palm vein recognition and 3D light face scanning.
The palm vein system reads subcutaneous blood vessel patterns from a distance of 10 to 20 centimeters. This offers a reliable, touch-free option for children over 1.1 meters tall and older relatives who often face high rejection rates on standard sensors. For quick entry, the 3D face recognition module operates in approximately one second and covers household members ranging between 1.2 and 2.0 meters in height, removing the need to bend down or stand on tiptoes.
AI Vision and Ecosystem Integration
Positioned on the exterior bridge-style panel is an ultra-wide 192-degree camera recording in 2K resolution. Equipped with dynamic night vision, the lens streams live footage directly to the 5-inch monitor mounted on the interior door assembly, allowing residents to screen visitors before unlocking.
Rather than relying on basic motion triggers that create nuisance notifications from passing neighbors, Xiaomi integrated a large AI vision model directly into the camera workflow. The system accurately differentiates between pedestrians moving past the doorway, guests standing at the entrance, and delivery personnel dropping off packages. If a box is left at the door, the lock issues a immediate notification via the companion app. Real-time security alerts also trigger if the door is left ajar or if structural tampering is detected.
Dual-Battery Architecture and Power Efficiency
High-power smart locks with active displays and high-resolution video feeds often suffer from rapid battery drain. Xiaomi addresses this hardware compromise with a dual 8,000mAh battery setup, providing up to 11 months of standard operating time on a full charge.
When total charge drops below 10%, the lock automatically shifts into a low-power safety reserve mode. This backup state keeps basic biometric unlocking functional for an additional 2.5 months, ensuring homeowners are not locked out while waiting to recharge the primary battery packs. The device also integrates into Xiaomi's broader smart home ecosystem, supporting two-way voice intercoms across linked smart displays and tablets.
The Xiaomi Smart Lock 5 Max is currently available for pre-order in mainland China for 3,529 yuan (approximately $495). Global release details and international pricing have not yet been announced by the manufacturer.
