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Aqara UWB Smart Lock U400, Matter Over Thread, Apple Home Key, Fingerprint Keyless Entry Deadbolt,Touchscreen Keypad, Rechargeable Battery, Supports
87% of respondents would recommend this to a friend
TMT 1204
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Experience a new era of smart access — UWB detects your incoming presence, direction, and intent to unlock automatically as you approach.
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What Stands Out
Product Details
- True Hands-Free Unlocking with UWB Technology: Experience a new era of smart access — UWB (Ultra-Wideband) detects your incoming presence, direction, and intent to unlock automatically as you approach. It provides a faster, more convenient, and highly secure way to enter your home without touching the lock. Perfect when your hands are full, you're wearing gloves, or arriving in the rain. (Note: UWB unlocking requires a Thread-enabled Apple Home hub and is supported on Apple Watch Series 6 or later (excluding SE) running watchOS 11.5+ and iPhone 11 or later (excluding iPhone SE & iPhone 16e) running iOS 18.5+.)
- All-in-One Unlocking Options: Enjoy Apple home key tap-to-unlock (requires an Apple Thread-enabled Matter controller: HomePod 2nd Gen, HomePod mini, or Apple TV 4K 2021/2022), plus fingerprint, touchscreen passcode, voice assistant control, app remote access, NFC card support (card sold separately), and a physical key, giving you flexible, reliable ways to enter your home in any situation.
- Matter Over Thread for Multi-Ecosystem Compatibility: Built with Matter over Thread, the U400 can connect to multiple smart home platforms simultaneously, allowing you to enjoy the unique features of each ecosystem. Thread offers faster response, more stable connectivity, lower power consumption, and secure data transmission. Note: A Thread-enabled Matter controller from each ecosystem is required for its respective platform.
- Convenient Rechargeable Power System: Powered by a rechargeable and removable lithium battery that lasts up to 6 months per charge. Use the lock's USB-C port to recharge without taking the lock offline, or remove the battery and charge it separately. A low-battery voice alert will notify you when the battery drops below 20%, ensuring you never get caught off guard.
- Certified Security & Outdoor Durability: BHMA-certified for proven protection, mechanical strength, and long-term reliability. The IP65-rated exterior guards against dust and water for dependable outdoor performance. Plus, the rekeyable design allows you to change the physical key without replacing the entire lock cylinder.
- Unlock More Features with the Aqara App: Customize your security with Auto Lock, Night Latch Mode (only admins and physical keys can unlock at night), and Do Not Disturb Mode. Integrates seamlessly with Aqara cameras like the G5 Pro and G410 doorbell, allowing you to view visitors and unlock directly via live video interaction.
| Brand Name | Aqara |
| Recommended Uses For Product | Watch the complete video for installation, app pairing, and operation. |
| Number of Pieces | 1 |
| Included Components | outer panel, inner panel, deadbolt, installation diagram, user manual, strike plate kit, mounting plate, adapter ring, mechanical key, mounting plate screwkit |
| Model Number | DL-D06E |
| UPC | 192784002131 |
| Model Name | U400 |
| Manufacturer | Lumi United Technology Co., Ltd |
| Unit Count | 1.0 Count |
| Additional Features | UWB True Hands-Free Unlock |
| Lock Type | Deadbolt |
| Controller Type | Amazon Alexa, Apple HomeKit, Google Assistant, Home Assistant, SmartThings |
| Control Method | App |
| Connectivity Protocol | Matter |
| Smart Home Compatibility | Smart Home Compatible |
| Color | Black |
| Shape | Rectangular |
| Material Type | Aluminum |
| Item Dimensions | 3 x 4.2 x 7 inches (7.6 x 10.7 x 17.8 cm) |
| Brand | Aqara |
| Special Feature | UWB True Hands-Free Unlock |
| Item dimensions L x W x H | 3 x 4.2 x 7 inches (7.6 x 10.7 x 17.8 cm) |
| Material | Aluminum |
| Package Weight | 3.9 Pound |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
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Tech-Savvy Users
Users who enjoy the latest technology will appreciate the advanced features and integrations with smart home systems.
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Frequent Travelers
Those who travel often can benefit from keyless entry options for easy access to their homes without physical keys.
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Smart Home Enthusiasts
Individuals integrating various devices in a connected home will find the Matter support and compatibility with HomeKit appealing.
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Budget-Conscious Consumers
Users looking for lower-cost options may find this smart lock more expensive than traditional lock alternatives.
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Low-Tech Individuals
Those who prefer traditional locks may find the features overwhelming and challenging to set up or use.
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Non-Smart Home Users
Individuals not using smart home systems will not fully utilize all features and integrations offered by this lock.
Product Description
Related Searches
Customer Questions & Answers
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Question:
What is the Aqara UWB Smart Lock U400?
Answer: The Aqara UWB Smart Lock U400 is a state-of-the-art smart deadbolt designed for keyless entry. It features ultra-wideband (UWB) technology for enhanced security and convenience. With multiple unlock options including fingerprint recognition, a touchscreen keypad, and Apple Home Key support, users can enjoy flexible access methods. Ideal for modern smart homes, it seamlessly integrates with Matter over Thread, ensuring robust connectivity with various smart home devices. -
Question:
How does the fingerprint entry work?
Answer: The fingerprint entry feature of the Aqara UWB Smart Lock U400 utilizes advanced biometric technology to quickly recognize registered fingerprints. Once you set up your fingerprint in the mobile app, simply place your finger on the designated sensor to unlock the door. This feature is incredibly useful for users who prefer a hands-free access method or have multiple family members who need entry without carrying keys. -
Question:
Can I control the Aqara UWB Smart Lock U400 remotely?
Answer: Yes, the Aqara UWB Smart Lock U400 can be controlled remotely through the Aqara app on your smartphone. Users can lock or unlock their door, check access logs, and manage user permissions from anywhere. This remote accessibility is particularly beneficial for homeowners who want to grant temporary access to guests, service personnel, or family members without being physically present. -
Question:
What is Matter over Thread technology?
Answer: Matter over Thread technology ensures seamless and reliable connectivity between the Aqara UWB Smart Lock U400 and other Matter-supported smart home devices. This means that the lock can communicate with a plethora of smart devices efficiently, enhancing control and automation throughout your home. Users appreciate this because it fosters an integrated smart home experience, allowing different devices to work together harmoniously. -
Question:
How long does the battery last on the Aqara UWB Smart Lock U400?
Answer: The Aqara UWB Smart Lock U400 is equipped with a rechargeable battery that is designed to last for an extended period under normal usage conditions. Depending on usage frequency, the battery can last several months on a single charge. The convenience of a rechargeable battery means you won't have to frequently replace batteries, making it both cost-effective and environmentally friendly. -
Question:
Can I integrate this lock with Apple HomeKit?
Answer: Absolutely! The Aqara UWB Smart Lock U400 supports Apple Home Key, allowing users to easily integrate it with the Apple HomeKit ecosystem. This integration enables users to control the lock through Siri and other Apple Home applications, enhancing convenience and control within the Apple device ecosystem, making it a perfect fit for iPhone and iPad users. -
Question:
Is the Aqara UWB Smart Lock U400 easy to install?
Answer: The installation process for the Aqara UWB Smart Lock U400 is straightforward and typically doesn't require professional help. The package includes all necessary hardware and detailed instructions. Many users find that they can replace their existing deadbolt lock with the U400 in just a few simple steps, making upgrading to a smart lock quite accessible. -
Question:
Does the lock offer any emergency features?
Answer: Yes, the Aqara UWB Smart Lock U400 is designed with safety in mind. It includes an emergency key override feature that allows users to access the lock using a traditional key in case of power failure or battery depletion. This is particularly useful for those who want extra peace of mind in case of unforeseen circumstances, ensuring you can always access your home. -
Question:
Where can I buy the Aqara UWB Smart Lock U400?
Answer: You can purchase the Aqara UWB Smart Lock U400 from Ubuy in Turkmenistan. Ubuy offers a streamlined shopping experience with a wide array of electronic products. By purchasing through Ubuy, you can check out with confidence, as they provide a robust platform for ensuring product authenticity and customer satisfaction.
Aqara Deadbolts DL-D06E Editorial Review
The Aqara UWB Smart Lock U400 has generally received positive feedback from users, with many praising its advanced technology and user-friendly features. The lock’s ultra-wideband (UWB) unlocking is highlighted as a standout feature, providing speed and efficiency when entering. Reviewers were notably impressed by how automatic unlocking becomes a conversational piece for guests, underlining the lock's modern appeal. Customers appreciate the swift locking and unlocking mechanisms facilitated by an upgraded motor, which delivers a noticeable improvement in responsiveness compared to the previous U100 model. The design, marked by its sleek rounded edges and an innovative anti-peep keypad, adds a sense of luxury to the product. The rechargeable battery has also been well-received, offering convenience with the option to hot-charge during use, a Considerable upgrade over traditional disposable batteries. Feature-wise, the U400 encompasses a broad range of functionalities including facial recognition, fingerprint scanning, NFC cards, automations, USB access, remote controls, and traditional physical keys. Many users found managing access for various users straightforward, emphasizing the product's versatility. However, there are some recurring issues that customers have pointed out, particularly related to initial setup and software connectivity. Some users faced difficulties with binding the lock to their Aqara hub and experienced frustrations with Bluetooth stability. Additionally, inConsistencies with battery percentage indicators and the lock's calibration were noted. While the design and core functions of the lock are generally applauded, these technical hiccups may return to haunt the overall user experience. In conclusion, the Aqara UWB Smart Lock U400 appears to stand as a top contender in the smart lock market, combining high-tech features with a desirable aesthetic. Nevertheless, potential buyers should be mindful of the initial setup challenges that might come with this innovative device. **
Customer Reviews & Ratings
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5 Star
67%
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4 Star
14%
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3 Star
6%
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2 Star
3%
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1 Star
10%
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Pros
- Ultra-wideband (UWB) unlocking is fast and seamless.
- Upgraded motor provides quicker locking/unlocking.
- Sleek design with modern finishes and an anti-peep keypad.
- Convenient rechargeable battery with hot-charging capabilities.
- Comprehensive features including fingerprint scanning, facial recognition, and remote access.
Cons
- Bluetooth disconnection problems noted by some users.
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
TMT 1204
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Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Features & Benefits
- True hands-free unlocking with UWB technology for effortless access.
- Multiple unlocking methods: Apple Home key, fingerprint, touchscreen, and voice assistant.
- Compatible with various smart home ecosystems via Matter over Thread.
- Rechargeable battery lasting up to 6 months with a convenient USB-C charging option.
- Certified for security and durability, with IP65 rating for outdoor use.
- Customize features through the Aqara app for enhanced security.

































