Xiaomi launched the Smart Door Lock 2 Face Recognition Version in China in July 2024. The 1,899-yuan reported pre-sale model adds 3D structured-light face recognition, an AI-equipped smart peephole camera, automatic locking and Mijia/HyperOS Connect integration. It should not be confused with the standard Xiaomi Smart Door Lock 2 or the later Smart Door Lock 2 Pro.
What Xiaomi launched
The product is a face-recognition edition of Xiaomi’s Smart Door Lock 2 family, rather than evidence of a worldwide release. Launch coverage reported a Chinese pre-sale price of 1,899 yuan on July 9, 2024. Xiaomi’s China product listing identifies the model, but the available evidence does not establish a current U.S. price, international retail launch or local installation support.
The headline upgrades are contactless 3D face unlocking, a camera-equipped “smart cat eye,” a fully automatic lock body and Xiaomi smart-home automation.
3D face recognition: convenience, not a security guarantee
The lock uses reported 3D structured-light facial recognition. Invisible light is used to capture facial information, allowing a user to unlock the door without touching the reader. Xiaomi and launch coverage also describe 3D anti-spoofing protection intended to resist photo and video attacks.
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#1 Best Overall
- MORE WAYS TO ENTER: Hands full of groceries? This keyless entry door lock recognizes when you’re home and unlocks automatically. For everyone else, there’s a keypad, full smartphone and Apple Watch control, or a backup key if all else fails.
- CONTROL FROM ANYWHERE: This electronic door lock puts home security in your pocket - connecting directly to 2.4 or 5 GHz Wi-Fi without a hub or bridge. Lock up, let someone in, and get real-time alerts with the Yale Access app (US & Canada Only).
- UNLIMITED CODES, TOTAL CONTROL: No more hiding spare keys. Give the dog walker Tuesday access, your parents a permanent code, and your Airbnb guest entry that expires at checkout. Share, schedule, or revoke access in seconds.
- STOP WONDERING IF YOU LOCKED UP: DoorSense knows when your door is fully closed and Auto-Lock secures it for you. Head to bed, rush out the door, or chase after the kids — your smart front door lock handles the details so you don't have to worry.
- ENGINEERED FOR RELIABILITY: Grade 2 certified by BHMA, the industry standard for commercial-grade durability. Built to perform from -22°F winters to 140°F summer heat. Low-power alerts let you know when batteries are about to run out.
That claim should be treated as a manufacturer feature claim, not independent proof of biometric security. The available coverage does not provide false-acceptance or false-rejection rates, independent liveness testing, penetration testing or certification for this exact model. Structured light is a sensing method; it does not automatically guarantee that a lock is more secure than every fingerprint or keypad alternative.
Face unlocking may be particularly convenient for households with children or adults who find fingerprint readers difficult. It can also fail in practical situations, including masks, helmets, unusual lighting, incorrect positioning or significant changes in appearance. Keep another access method available.
AI smart peephole camera
The reported “smart cat eye” combines a 2.3-megapixel camera with a 160-degree viewing angle. Its stated capabilities include:
Rank #2
- MORE WAYS TO ENTER: Hands full of groceries? This keyless entry door lock recognizes when you’re home and unlocks automatically. For everyone else, there’s a keypad, full smartphone and Apple Watch control, or a backup key if all else fails.
- CONTROL FROM ANYWHERE: This electronic door lock puts home security in your pocket - connecting directly to 2.4 or 5 GHz Wi-Fi without a hub or bridge. Lock up, let someone in, and get real-time alerts with the Yale Access app (US & Canada Only).
- UNLIMITED CODES, TOTAL CONTROL: No more hiding spare keys. Give the dog walker Tuesday access, your parents a permanent code, and your Airbnb guest entry that expires at checkout. Share, schedule, or revoke access in seconds.
- STOP WONDERING IF YOU LOCKED UP: DoorSense knows when your door is fully closed and Auto-Lock secures it for you. Head to bed, rush out the door, or chase after the kids — your smart front door lock handles the details so you don't have to worry.
- ENGINEERED FOR RELIABILITY: Grade 2 certified by BHMA, the industry standard for commercial-grade durability. Built to perform from -22°F winters to 140°F summer heat. Low-power alerts let you know when batteries are about to run out.
- AI-based human detection;
- reduced false alarms caused by pet movement;
- micro-light full-color night vision; and
- remote visitor monitoring through Xiaomi’s app.
This camera can help a homeowner check who is outside, receive an alert when a person is detected and view the doorway in low light. Human detection is not the same as identity recognition: the camera classifies apparent human presence, while the separate facial-recognition system is used for unlocking. Pet filtering and night-vision performance should be regarded as reported capabilities rather than independently tested results.
Unlocking methods
According to launch coverage, the lock supports a broad set of entry options:
- 3D face recognition;
- fingerprint;
- fixed passwords;
- virtual-position passwords, which help conceal a code among extra digits;
- temporary passwords;
- cyclic or recurring passwords;
- Bluetooth;
- NFC card;
- a compatible Xiaomi phone;
- a Xiaomi watch or bracelet; and
- an emergency mechanical key.
Multiple methods matter more than the headline biometric feature. A fingerprint reader or face sensor may be unusable when a user is wearing protective equipment, the phone battery is dead or the sensor fails. Temporary and recurring passwords can be useful for guests, cleaners or contractors, but the owner should confirm how they are created and revoked in the applicable Mi Home app.
Rank #3
- 𝐅𝐥𝐞𝐱𝐢𝐛𝐥𝐞 𝐖𝐚𝐲𝐬 𝐭𝐨 𝐔𝐧𝐥𝐨𝐜𝐤: Unlock the way you want: app, passcode, fingerprint, physical key, or voice via Alexa/Google Assistant. Everyone in the family can choose what works best — convenience meets flexibility. Batteries are not included.
- 𝐔𝐧𝐥𝐨𝐜𝐤 𝐅𝐫𝐨𝐦 𝐀𝐧𝐲𝐰𝐡𝐞𝐫𝐞: Built-in Wi-Fi lets you lock and unlock your door remotely anytime, anywhere from your smartphone — no extra hub needed. Stay connected and in control, even when you’re at work or on vacation. Only support 2.4Ghz network. Keep the router and lock with 65ft for better remote control.
- 𝗩𝗼𝗶𝗰𝗲 𝗖𝗼𝗻𝘁𝗿𝗼𝗹 𝗥𝗲𝗮𝗱𝘆: Pair with Alexa or Google Assistant to unlock or lock with your voice. Great for when your hands are full or you're relaxing at home and still welcome who’s at the door. Note: Please log in to your own Google or Alexa account first before use Voice Control and make sure your network connection is stable.
- 𝗬𝗼𝘂𝗿 𝗙𝗶𝗻𝗴𝗲𝗿𝘀 𝗶𝘀 𝗬𝗼𝘂𝗿 𝗞𝗲𝘆: Just one touch unlocks the door instantly. No need to search for keys — Your fingers is your keys, perfect for busy mornings. Philips wifi lock store multiple prints for easy family access.
- 𝐂𝐨𝐝𝐞 𝐀𝐜𝐜𝐞𝐬𝐬 𝐌𝐚𝐝𝐞 𝐒𝐢𝐦𝐩𝐥𝐞: Create up to 100 custom passcodes for family, friends, or renters. Easily share unlimited one-time or scheduled codes to guests, cleaners, or deliveries— no need to be home to open the door.
Automatic locking and construction considerations
Xiaomi describes a self-developed, fully automatic lock body with noise-reduction features. The intended result is automatic locking when the door closes, reducing the chance that a household leaves the entrance unsecured.
Automatic locking is not suitable for every household. It can be inconvenient when people frequently carry materials through the doorway, move in and out during construction work or need the door to remain unlatched. It also makes accurate installation important: a warped door, poorly aligned strike plate or unsuitable mortise can prevent the bolt from extending correctly.
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Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Before importing or specifying the lock, verify:
- door thickness, material and opening direction;
- mortise and lock-body dimensions;
- strike-plate and cylinder compatibility;
- the local emergency-key standard;
- whether qualified installation is available; and
- warranty and return arrangements in the country of installation.
The standard 2023 Smart Door Lock 2 was reported to reduce operating noise by approximately 12–13 dB, but that figure should not be assigned to the Face Recognition Version without a matching specification.
Rank #4
- 7 in 1 Keyless Entry Door Lock: Fingerprint ID(stores up to 50 fingerprints) + Passcodes(up to 50) + Smartphone App(compatible with Android and iOS) + Web Portal + EKey / Code Sharing + Voice Control with Siri, Alexa or Google Assistant + 2 Mechanical Keys
- App Control via Built-in WiFi: Remotely lock, unlock, and manage your smart lock from anywhere. Share permanent, scheduled, or temporary eKeys and passcodes with family, guests, or service providers. Manage up to 50 fingerprints and 50 access codes, view activity history, and receive real-time notifications—all without a hub. Supports 2.4 GHz Wi-Fi only. For optimal connectivity, keep your router within 70 ft of the lock.
- Remote Access via Matter over Thread: Remotely lock, unlock, and manage your smart lock through Apple Home or other Matter-compatible apps. Enjoy simple setup, real-time notifications, event history, and secure access management—all from your smartphone. Requires a compatible Matter over Thread hub (Thread Border Router).
- Effortless Matter Smart Home Integration: Ultraloq matter smart lock seamlessly integrates with all matter-enabled ecosystems. Voice control with Siri, Alexa and Google Assistant. It can be used to automate your smart home by pairing multiple matter-enabled devices through the one app. No more compatibility headaches. Requires a compatible Matter over Thread hub (Thread Border Router).
- Reliable Connection: Enjoy fast, stable, and responsive communication with Matter over Thread. The self-healing mesh network automatically reroutes connections if a device becomes unavailable, helping keep your smart home connected with minimal interruptions. Requires a compatible Matter over Thread hub (Thread Border Router).
Wi-Fi, Bluetooth and HyperOS Connect
The Face Recognition Version is reported to support Wi-Fi and Bluetooth, with Mi Home/Mijia app functions for lock notifications and status management. HyperOS Connect can link door events to compatible Xiaomi automations—for example, switching on lights after unlocking or closing curtains when the homeowner leaves.
“HyperOS” here refers to ecosystem connectivity and automation. It does not mean the lock runs the same complete operating system as a Xiaomi phone. Xiaomi’s HyperConnect documentation says supported devices and functions can vary by region, device and software version. A China-market lock may require a China-region Mi Home account, Chinese-language firmware or China-based cloud services. Confirm those requirements before purchase.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Privacy and security questions
This product may involve facial-recognition data, fingerprint data, door-entry records, camera alerts and potentially stored video. Xiaomi’s Mijia privacy documentation describes data handling and privacy controls for relevant smart-home products, but the available launch material does not establish every detail for this exact model.
Best Value
- 𝐊𝐞𝐲𝐩𝐚𝐝 𝐃𝐨𝐨𝐫 𝐋𝐨𝐜𝐤 𝐰𝐢𝐭𝐡 𝐇𝐚𝐧𝐝𝐥𝐞𝐬: Upgrade your home with Philips keyless entry door lock with handles, which enhances both the functionality and style of your door. The handles are perfectly paired with the smart lock for seffortless use. Enjoy a sleek, coordinated look while benefiting from the convenience of this smart door lock set!
- 𝐂𝐨𝐧𝐭𝐫𝐨𝐥 𝐘𝐨𝐮𝐫 𝐃𝐨𝐨𝐫 𝐀𝐧𝐲𝐭𝐢𝐦𝐞, 𝐀𝐧𝐲𝐰𝐡𝐞𝐫𝐞: Stay in control no matter where you are. With our Wi-Fi Smart Lock, you can remotely manage your door via the Philips App. Lock, unlock, and monitor your door status effortlessly from your smartphone. Receive real-time notifications, access history, and easily manage permissions for family and guests.
- 𝐌𝐮𝐥𝐭𝐢 𝐔𝐧𝐥𝐨𝐜𝐤𝐢𝐧𝐠 𝐎𝐩𝐭𝐢𝐨𝐧𝐬 𝐟𝐨𝐫 𝐌𝐨𝐫𝐞 𝐅𝐥𝐞𝐱𝐢𝐛𝐢𝐥𝐢𝐭𝐲: Philips offers ultimate convenience with five unlocking methods: App, Fingerprints, PIN Codes, Keys, or voice commands via Amazon Alexa or Google Assistant. No matter your preference, unlocking your door has never been easier or more versatile.
- 𝐕𝐚𝐫𝐢𝐨𝐮𝐬 𝐏𝐈𝐍 𝐂𝐨𝐝𝐞𝐬 𝐀𝐜𝐜𝐞𝐬𝐬: Securely unlock your door with unlimited one-time PIN codes or up to 100 user codes. Temporary, Permenant, Recurring, or One-time PINs can be tailored to your needs. Once used, one-time codes expire instantly, providing a secure, flexible solution for guests, deliveries, and nanny.
- 𝐕𝐚𝐫𝐢𝐨𝐮𝐬 𝐏𝐈𝐍 𝐂𝐨𝐝𝐞𝐬 𝐀𝐜𝐜𝐞𝐬𝐬: Securely unlock your door with unlimited one-time PIN codes or up to 100 user codes. Temporary, Permenant, Recurring, or One-time PINs can be tailored to your needs. Once used, one-time codes expire instantly, providing a secure, flexible solution for guests, deliveries, and nanny.
Before installation, confirm:
- whether facial data is stored locally, in the cloud or both;
- whether face unlocking can be disabled while other methods remain active;
- how temporary passwords are revoked;
- who can access camera alerts;
- what still works during a Wi-Fi outage;
- whether remote monitoring or remote unlocking is supported;
- how long records are retained and in which jurisdiction; and
- whether recording a shared hallway complies with local privacy rules.
These questions are especially important in apartments, shared homes, rental properties and multi-tenant buildings. Obtain consent from household members before enrolling biometric data.
How it compares with other Xiaomi Smart Door Lock 2 models
| Feature | Smart Door Lock 2 | Face Recognition Version | Smart Door Lock 2 Pro |
|---|---|---|---|
| Main biometric | Fingerprint | 3D face recognition plus fingerprint | AI 3D face recognition plus fingerprint |
| Camera | Not established in the cited launch report | 2.3 MP, 160-degree AI camera reported | 160-degree camera and internal HD display reported |
| Reported pre-sale price | 1,299 yuan | 1,899 yuan | 2,299 yuan |
| Coverage timing | November 2023 | July 2024 | August 2024 |
| Main distinction | Fingerprint/keypad-oriented access | Face unlock and AI peephole | Face unlock with an internal display and expanded monitoring features |
The standard model’s historical price and reported noise-reduction figures come from coverage of the 2023 lock. The Pro is a separate model; its reported specifications should not be merged with the Face Recognition Version. See separate Pro coverage for that distinction.
Failure points to plan for
- Dead battery: The product is reported to include a mechanical emergency key, but the external emergency-power procedure for this exact version needs confirmation from the manual.
- Wi-Fi outage: Local entry methods may continue, while remote notifications and monitoring may not. Confirm the exact offline behavior.
- Bluetooth unavailable: Phone-based access can fail if Bluetooth is disabled, the phone is uncharged or authorization has been lost.
- Face-recognition failure: Use fingerprint, password, NFC or the mechanical key as backup.
- Automatic relocking: Door sag, warping or poor alignment can interfere with bolt operation.
- Regional lock-in: App, firmware, cloud, installation and warranty support may be China-specific.
Should you buy or import it?
The lock is most compelling for Xiaomi users in China who want touch-free entry, a built-in visitor camera and Mijia automation. It is less attractive when biometric privacy, straightforward local servicing or compatibility with an existing Apple Home, Google Home, Amazon Alexa or Matter installation is the priority; the supplied sources do not verify those integrations for this model.
For a U.S. or other international buyer, the 1,899-yuan figure is only the original reported Chinese pre-sale price—not a current U.S. price or confirmed global MSRP. Treat the official China listing as a product reference, not proof that the lock will fit a local deadbolt or work with a local Xiaomi account. Check door measurements, mortise format, installation, emergency access, app region, warranty, returns and privacy requirements before importing.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteSources: Gizmochina launch report; Xiaomi’s official product page; Xiaomi HyperConnect documentation; and Xiaomi’s Mijia privacy policy.
Quick Recap
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