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The Xiaomi Smart Door Lock 2 Pro is a China-market smart lock launched in August 2024 for 2,299 yuan. It combines AI 3D structured-light face recognition with an indoor display, a smart peephole camera and remote visitor features. Its specifications are ambitious, but the available launch information does not establish a U.S. release, U.S. warranty or compatibility with standard American deadbolts. For a buyer, checking the door and lock-body fit matters at least as much as the biometric features.
What launched—and what the Pro adds
This is a distinct product in Xiaomi’s Smart Door Lock 2 family, not simply a software update to the standard Smart Door Lock 2. Launch coverage describes a similar core smart-lock concept, with the Pro emphasizing an indoor high-definition display and AI smart peephole camera. The reports do not establish that its hardware is identical to another Xiaomi facial-recognition model.
The display is intended to let someone inside see who is at the door without opening it. Reported functions include waking the screen when a visitor presses the doorbell, touching the screen to check the exterior view, adjusting the view or framing, and using the Xiaomi Home/Mijia app for remote viewing and two-way visual communication. The camera is also reported to offer AI human detection, designed to reduce alerts from pets, and low-light full-color night vision. These are launch specifications, not independently measured performance claims. Launch coverage and specifications
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It helps to distinguish four jobs that can sound similar in a feature list:
#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.
- Local viewing: checking the visitor on the lock’s indoor screen.
- Remote viewing: opening a camera view in the app, which requires power, network access and a working account and service.
- Remote intercom: speaking with someone at the door through the app.
- Motion or person alerts: notifications triggered by camera detection, which may miss events or generate false alerts.
App, cloud and regional-service support can affect the latter three. The launch reports do not verify that all remote features work outside mainland China.
How the face unlocking is described
The lock uses AI 3D structured-light facial recognition. Xiaomi’s launch messaging presents it as a touch-free way to unlock when an authorized person approaches, with 3D liveness detection intended to resist attempts using photos or video. One launch report gives a recognition distance of about 0.4–0.8 metres and a supported user-height range of roughly 1.2–2 metres; treat those as reported specifications rather than independent test results. Reported recognition range and height
Those claims do not mean face unlocking is invulnerable. The available material does not include an independent security audit, attack testing, false-acceptance or false-rejection rates, or measurements for darkness, glare, backlighting, masks, glasses, hats or changes in appearance. Recognition may also be affected by a dirty or obstructed sensor, approach angle, low battery or software faults. Liveness detection is a security measure, not proof of zero risk.
Ten reported ways to unlock
Face recognition is only one access route. Launch coverage lists ten methods:
- Face recognition
- Fingerprint
- Permanent password
- Temporary password
- Bluetooth device
- Emergency key
- NFC door card
- Xiaomi phone
- Xiaomi watch
- Xiaomi band
That variety is useful if face recognition does not work: a fingerprint or password can serve as a routine alternative, while temporary passwords can help with guests or short-term access. The emergency key and external power are important recovery options. Phone, wearable, Bluetooth and NFC support should not be assumed to work with every device: compatibility may depend on the China-region lock, supported protocols, account region, firmware and device generation. Reported unlocking methods
Lock hardware and physical security
Launch coverage reports a straight-through C-level lock cylinder, a fully automatic, noise-reduced lock body, sensors intended to detect abnormal lock conditions, and Wi-Fi and Bluetooth connectivity. “C-level” is a Chinese lock-cylinder classification; it should not be treated as a universal certification or directly equated with a U.S. lock rating. Promotional claims about resisting technical opening or force should likewise not be read as independently proven guarantees. Sales-launch specifications
Rank #2
- 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).
A connected lock still has to fit and secure the physical door. Before buying, confirm the supplied lock body and mortise dimensions, door thickness, backset, strike-plate geometry and opening direction. Check clearance for the interior display and battery compartment, and establish whether professional installation is required or included. Compatibility with U.S. deadbolts and mortise hardware is not established by the launch coverage. An otherwise impressive lock is not a practical choice if it cannot be installed correctly or serviced locally.
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Reports say the lock uses a Mijia/Xiaomi security chip and stores facial, fingerprint and password data locally in encrypted form. Xiaomi’s claims about local biometric protection do not answer every privacy question. Biometric templates, camera footage, notifications, cloud-account data, remote-access credentials and household permissions are separate parts of the system, each with different risks and controls. Reported privacy and security features
The available launch material does not provide a complete current privacy policy, data-retention schedule, detailed encryption architecture, security-update commitment or independent audit. A door camera may also capture delivery workers, visitors, neighbours or shared hallway space. Buyers should review the applicable regional privacy terms and camera settings, consider who can view or manage the device, and share household permissions only with people who need them.
Power, connectivity and recovery if something fails
The reported power setup pairs a rechargeable lithium battery with dry-battery backup. Coverage says the lock enters a super power-saving mode when the lithium battery falls below 10%, can switch to dry-cell power when the rechargeable battery is depleted, and accepts USB-C emergency power from a power bank if its internal power is exhausted. An emergency key is another reported unlocking method. The reports do not establish battery capacity, runtime, charging time, dry-cell type or replacement interval, or exactly what is included in the box. Confirm those details with the seller rather than relying on assumptions. Reported battery fallback details
A power bank is an emergency supply for temporary operation, not a substitute for keeping the lock charged or for having a key. Owners still need to monitor the battery and keep an accessible recovery plan.
Wi-Fi and Bluetooth have different roles. Bluetooth access is local; camera viewing and remote intercom rely on network, account and app availability. A Wi-Fi outage may interrupt remote functions without necessarily preventing local unlocking through other supported methods. Account or cloud-service problems, regional app restrictions and firmware compatibility can also affect setup and remote access. The available reports do not establish support for Matter, Apple Home, Google Home, Alexa, Thread or Home Assistant.
Rank #3
- 【Advanced Palm Vein Lock 】Keyless Entry Door Lock for All. Move beyond fingerprint limitations with cutting-edge Palm Vein Technology. By scanning unique vascular patterns beneath the skin, this smart door lock ensures 99.999% high-precision access in just 0.3 seconds. It solves issues like worn prints or children’s developing fingers. Whether you have wet hands, carry heavy groceries, or face bright sunlight, enjoy seamless entry. Privacy first: all biometric data is stored locally
- 【Command Your Home, Even When You’re Away】 Liberate your hands while cooking, doing laundry, or relaxing on the couch. Fully compatible with Alexa and Google Assistant, you can lock, unlock, or check door status with a simple voice command. Heading to the office? Use the TCL Home App to grant guest access to neighbors, pet sitters, or cleaning services in real-time. Experience total control and peace of mind from anywhere in the world, knowing your front door is always under your command
- 【Heavy-Duty Reliability for Year-Round Security】 Forget frequent battery swaps. Powered by a massive 10,000mAh rechargeable battery, this smart lock provides up to 8 months of operation on a single charge. With proactive 20% low-power alerts and a USB-C emergency backup port, it is designed to prevent lockout scenarios. Engineered with premium alloy and IP55 weatherproofing, the front door lock set withstands everything from heavy blizzards and torrential rain to scorching desert heat, ideal for front entry
- 【Customized Access for Every Member of the Household】 We’ve designed a smart deadbolt lock that respects your lifestyle. Choose from six secure entry options: Advanced Palm Vein Scan, Touchscreen Passcode, TCL Home App, Voice Commands, NFC Card, or Physical Key. Easily generate temporary, time-sensitive codes for service providers or house cleaners, while providing physical keys for grandparents who prefer traditional access. ideal for busy families, professionals, property managers, and hosts
- 【Professional Security, DIY Simplicity】This smart door lock is designed for a 5-15 minute stress-free installation using only a standard screwdriver. It is universally compatible with standard US door thicknesses (1-3/8" to 2-1/8") and adjustable backsets (2-3/8" or 2-3/4"). Once installed, customize the Auto-Lock timer to ensure your house is secured the moment the door closes—giving you absolute peace of mind that your home stays secure even when you’re leaving in a rush
China launch price, not a current international price
Xiaomi opened preorders in China on August 13, 2024, at a reported 2,299 yuan, and official sales began August 20 at the same reported launch price. The coverage describes this as an effective launch or “到手价”; it is not necessarily a permanent list price, an international MSRP or the amount a buyer elsewhere would pay after shipping, tax and installation. Preorder and price report · Official-sales date
Later China promotions are historical examples, not a reliable current quote: a November 2025 offer reportedly brought the effective price to about 1,291 yuan after coupons, membership discounts and a regional subsidy; an April 15, 2026 report described a time-limited promotion around 963 yuan through a specific seller or channel. Neither establishes the current price. November 2025 promotion · April 2026 promotion report
The available sources establish a China launch, not an official U.S. product listing, U.S. warranty, local service arrangement or American door-hardware compatibility. Importers should verify those points with the seller and installer before paying; a China-market listing or discounted price is not evidence of local support.
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The Smart Door Lock 2 Pro is most plausible for someone in the China-market Xiaomi/Mijia ecosystem whose door fits the supplied hardware, who wants an indoor visitor screen and camera, and who has a reliable fallback plan. Xiaomi phone or wearable users may find the ecosystem access options especially useful.
It is a weaker fit for a U.S. buyer expecting a straightforward standard-deadbolt retrofit, local warranty and installation, or confirmed integration with Apple Home, Google Home, Alexa or Matter. It may also be the wrong choice for households that do not want a connected camera or biometric system, or that need independently verified security performance. In those cases, a locally supported fingerprint or keypad deadbolt, or a conventional smart lock paired with a separate video doorbell, may be easier to assess and service.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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