Xiaomi Smart Door Lock 4 Pro – recognizes the owner’s capillaries and analyzes them using AI, of course
25.08.25
Xiaomi has introduced a new flagship smart lock, the Smart Door Lock 4 Pro. Unlike previous models, it has a built-in wide-angle HD camera in the peephole and a large screen on the inside of the door, which allows you to see the visitor without using a smartphone.
Specifications of the Xiaomi Smart Door Lock 4 Pro
The lock supports several methods of owner identification:
- scanning the capillary pattern on the palm,
- 3D face recognition,
- fingerprint,
- entering a password,
- control via phone or smartwatch,
- using an NFC card, like in hotels.
The built-in camera records when a person appears at the door, color night vision works, and 24-GHz radar and AI algorithms analyze behavior and are able to sound an alarm even without an attempt to break in – for example, if someone suspiciously lingers near the entrance. According to the company, the system performs recognition in less than a second, and the error rate does not exceed 1%.
Xiaomi Smart Door Lock 4 Pro is equipped with a 5000 mAh battery, which is enough for up to 4 months of operation. Additionally, you can install AA batteries – they will provide about another six months of autonomy. The design is made with noise-absorbing elements, so the operation of the mechanism is almost inaudible. The novelty is already available in China at a price of about $345.
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