Welcome to WZHL ! 28-30 May, 2026 Wenzhou City, China 中文(简体)

Home / Press & Links /

What's New

Xiaomi's new generation flagship smart lock has officially gone on sale. What are the highlights?

On November 10th, Xiaomi Smart Ecology announced through its official Weibo account that its new flagship smart door lock, the Xiaomi Smart Door Lock M40 Pro, went on sale last night. The suggested retail price for this product is 3799 yuan, and during the initial launch period, users can enjoy a purchase price of 3229.15 yuan, which has attracted widespread attention.


It is reported that the Xiaomi Smart Door Lock M40 Pro has achieved a comprehensive upgrade in unlocking methods, supporting up to 12 unlocking modes, including AI palm vein recognition, AI 3D face recognition, AI fingerprint recognition, long-term password, cycle/one-time password, remote unlocking, mobile Bluetooth unlocking, and emergency mechanical keys. In addition, users can easily unlock the smart home ecosystem by pairing it with Xiaomi phones, watches, wristbands, or NFC door cards (which need to be purchased separately), further expanding the collaborative experience of the smart home ecosystem.


微信图片_2025-11-12_150132_769.jpg


As one of the technical highlights of this product, AI palm vein recognition technology is jointly developed by Xiaomi and Tencent Youtu Laboratory. This technology uses near-infrared light to scan the palm, deeply collecting vein and vascular feature information that is not easily stolen, and has the characteristics of high security and high accuracy. According to the official introduction, the palm vein recognition algorithm has passed the relevant safety standards tests of the Ministry of Public Security. The recognition distance is 9 to 20 centimeters, the recognition speed is less than 1 second, the rejection rate is less than 1.5%, and the false recognition rate is less than 0.0001%. It is especially suitable for elderly people with worn fingerprints and children with height restrictions, greatly improving the inclusiveness of home users.


In terms of AI 3D facial recognition, M40 Pro constructs a facial spectrum by simulating human eye disparity, and combines 3D liveness detection technology to effectively prevent malicious attacks such as photos and videos, further enhancing the security protection capability of door locks. In terms of structural design, the door lock is equipped with a self-developed noise reducing fully automatic lock body, which achieves automatic locking when the door is closed and significantly reduces the noise of opening and closing the door. The lock cylinder adopts a direct insertion C-level design, which runs through the entire lock body and meets the highest level of national anti-theft standards, further ensuring the safety of entry. In terms of visual and interactive aspects, the Xiaomi M40 Pro is equipped with a 5-inch display screen and an external AI dual camera panoramic cat eye. Users can view the situation outside the door without blind spots, achieving all-weather security monitoring.


The endurance performance is also excellent. The door lock adopts a dual battery power supply scheme, with a lithium battery life of about 4.5 months and a dry battery life of 6 months, resulting in an overall comprehensive life of up to 10.5 months. It is worth mentioning that the M40 Pro has added a "long-term plug-in charging inside the door" function. If the user has a suitable power supply interface reserved at home, the door lock can never be powered off, completely solving the problem of battery anxiety. The launch of the Xiaomi Smart Door Lock M40 Pro marks Xiaomi's further advancement in intelligent security and whole house intelligent ecological layout. The product will officially go on sale on Xiaomi's official channels and cooperative e-commerce platforms at 8 pm tonight, and is expected to become another popular choice for smart home users.