Igeekphone News on November 21st: Xiaomi’s smart ecosystem officially announced that the smart door lock M40 has started pre-sale today. The official price is 3,299 yuan, and the pre-sale price is 2,804.15 yuan.
Overall, the Xiaomi smart door lock M40 is consistent with the recently launched M40 Pro in appearance and most of its configurations, except that it has reduced the palm vein unlocking method.
The M40 offers 11 unlocking methods, with the core including AI 3D structured light face recognition: it supports millimeter-level precision face drawing, 3D live anti-counterfeiting to resist photo and video attacks, and is compatible with heights ranging from 1.2 meters to 2 meters, automatically triggering unlocking within a distance of 0.4 meters to 0.8 meters.
In addition, it covers modes such as AI fingerprint recognition, long-term passwords, periodic/one-time temporary passwords, and mobile phone Bluetooth unlocking.
The door is equipped with an AI dual-camera panoramic peephole and a bottom blind spot monitoring camera, combined with a self-developed AI recognition algorithm. The door is equipped with a 5-inch high-definition large screen, with the visible area increased by approximately 40% compared to the previous generation. It is also equipped with 6 night vision supplementary lights.
The lock body adopts a straight-through C-level lock core design and is equipped with a self-developed noise-reducing fully automatic lock body, supporting automatic locking when the door is closed.
The battery life adopts a dual power supply solution of lithium battery and dry battery. The 8000mAh lithium battery lasts for 4.5 months, and the dry battery lasts for 6 months, with a total battery life of 10.5 months. When the lithium battery is exhausted, it will automatically switch to dry battery power supply.
Emergency support includes Type-C emergency power supply outside the door and wireless reverse charging for mobile phones.
It is worth noting that, like the M40 Pro, the M40 has added the function of long-term plug-in charging inside the door. If there is a suitable power supply position reserved inside, it can ensure that the power is never cut off, eliminating the trouble.