Aqara vs Ulecoce: Smart Locks Compared by Specs
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This aqara vs ulecoce smart lock comparison focuses on the Aqara U400 UWB Smart Deadbolt and the Ulecoce U68 Fingerprint Keypad Deadbolt. Both devices offer fingerprint access and app control for home entry. The main difference lies in their connectivity and unlocking methods. The Aqara uses Ultra-Wideband technology and Thread for seamless Apple Home integration. The Ulecoce relies on standard keypad inputs and requires a separate gateway for voice assistant compatibility.
Key differences
| Aspect | Aqara U400 UWB Smart Deadbolt | Ulecoce Fingerprint Deadbolt with Knob |
|---|---|---|
| Connectivity | Thread | Not listed |
| Access Method | UWB, Apple Home Key, fingerprint, key | Fingerprint, keypad, app, key, voice |
| Smart Home Compatibility | Apple Home, Matter | Amazon Alexa, Google Assistant |
| Power System | Rechargeable lithium battery | Not listed |
| Included Hardware | Not listed | Knob set |
Which one should you choose?
Choose Aqara U400 UWB Smart Deadbolt if
- You use an Apple ecosystem and want hands-free UWB unlocking
- You prefer a rechargeable battery that can be charged via USB-C
- You need Matter over Thread connectivity for stable smart home response
Choose Ulecoce Fingerprint Deadbolt with Knob if
- You want a physical keypad for entering passcodes
- You need compatibility with Amazon Alexa or Google Assistant
- You prefer a lock that includes a matching door knob set
Verdict: Choose the Aqara U400 if you are invested in the Apple Home ecosystem and value hands-free Ultra-Wideband unlocking. The Ulecoce U68 is the better option if you prefer a physical keypad, need Alexa or Google Assistant support, or want a lock that comes with a door knob. Both provide reliable fingerprint access, but their smart home integrations target different user bases.
Aqara U400 vs Ulecoce U68 Specs
Unlocking technology
The Aqara U400 UWB Smart Deadbolt introduces Ultra-Wideband technology for true hands-free entry. It detects your presence and intent to unlock automatically as you approach, provided you have a compatible Apple Watch or iPhone. This offers a seamless experience when your hands are full or you are wearing gloves. In contrast, the Ulecoce U68 Fingerprint Keypad Deadbolt relies on traditional methods. It features a fingerprint sensor that recognizes users in 0.3 seconds and a touchscreen keypad for passcodes. While the Ulecoce does not offer hands-free UWB access, it provides five distinct unlocking methods, including app control and physical keys, ensuring reliable entry without requiring specific smartphone models.
Smart home compatibility
Connectivity options differ significantly between these two locks. The Aqara U400 uses Matter over Thread, which allows it to connect to multiple smart home platforms simultaneously. This protocol offers faster response times, more stable connectivity, and lower power consumption, provided you have a Thread-enabled Matter controller like a HomePod or Apple TV. The Ulecoce U68 supports Amazon Alexa and Google Assistant, but only when paired with a separate Ulecoce gateway that is sold separately. If you are already deep in the Apple Home ecosystem with Thread devices, the Aqara integration is more native. For users preferring Alexa or Google without extra hubs, the Ulecoce works directly with those assistants.
Power source
Maintenance and power management vary between the two models. The Aqara U400 is powered by a rechargeable and removable lithium battery that lasts up to six months per charge. You can recharge it via a USB-C port without taking the lock offline, or remove the battery to charge it separately. A voice alert notifies you when power drops below 20 percent. The Ulecoce U68 specifications do not explicitly detail its battery type or rechargeability in the provided data. However, it offers remote battery level monitoring through its app, allowing you to check power status from your smartphone. This feature helps you stay informed about when maintenance might be needed.
Physical hardware included
The hardware included with each lock affects your installation and door aesthetics. The Ulecoce U68 Fingerprint Keypad Deadbolt comes with a complete knob set, meaning you get both the deadbolt and a matching interior/exterior handle. This is convenient if you want a traditional knob appearance. The Aqara U400 UWB Smart Deadbolt is listed as a deadbolt only, with no mention of an included knob set in its specifications. You would need to ensure your existing door hardware is compatible or purchase handles separately. If you prefer a full set with a knob, the Ulecoce offers a more complete package out of the box.
Security certification
Durability and security standards are highlighted differently by each brand. The Aqara U400 is BHMA-certified, which proves its mechanical strength, protection, and long-term reliability. It also carries an IP65 rating for its exterior, guarding against dust and water for dependable outdoor performance. Additionally, the Aqara lock features a rekeyable design, allowing you to change the physical key without replacing the entire cylinder. The Ulecoce U68 specifications do not list BHMA certification or an IP rating in the provided data. It does offer a three-year product warranty and lifetime after-sales support, which provides peace of mind regarding customer service and product longevity.
Which Aqara or Ulecoce lock suits you
Apple ecosystem users wanting hands-free entry
The Aqara U400 supports UWB and Apple Home Key for automatic unlocking as you approach. It uses Matter over Thread for stable connectivity with HomePod or Apple TV. You get BHMA certification and IP65 weather resistance. This model integrates seamlessly with Aqara cameras for live video verification and remote access via the app.
Renters needing a complete knob set
The Ulecoce U68 includes a knob set for easy installation on standard doors. It offers five unlocking methods including fingerprint, keypad, and app control. You can manage up to 512 user credentials and generate temporary passwords. It supports Alexa and Google Assistant with a separate gateway and provides a 3-year warranty for long-term peace of mind.
Users prioritizing fast fingerprint recognition speed
The Ulecoce U68 recognizes fingerprints in 0.3 seconds and unlocks in one second. Its self-learning algorithm improves accuracy over time. You can customize auto-lock delays between 5 to 60 seconds. The lock stores extensive user data and allows remote management via app. Real-time alerts keep you informed of all access events.
Buyers seeking rechargeable battery convenience
The Aqara U400 features a removable rechargeable lithium battery lasting up to 6 months. You can charge it via USB-C without taking the lock offline. Low battery alerts notify you below 20%. This design ensures continuous operation. The lock also supports Night Latch and Do Not Disturb modes for enhanced security control.
The products compared
Aqara U400 UWB Smart Deadbolt
Best for: Apple ecosystem users wanting hands-free UWB access
- Access Methods
- Fingerprint, keypad, app, key, NFC, UWB
- Connectivity
- Matter over Thread, UWB
- Smart Home Compatibility
- HomeKit, Alexa, Google, Home Assistant
- Included Door Hardware
- Deadbolt
- Power Source
- Battery Powered
- Color
- Silver
View on Amazon: Aqara U400 UWB Smart Deadbolt Affiliate link
The Aqara U400 is a silver deadbolt featuring UWB hands-free unlocking and Apple Home Key support. It uses Matter over Thread for stable connectivity with compatible hubs like HomePod or Apple TV. The lock includes fingerprint and passcode entry, plus a physical key. A rechargeable battery lasts up to six months and charges via USB-C. It is BHMA-certified and rated IP65 for outdoor use, making it suitable for secure, automated access.
Pros
- UWB technology enables hands-free unlocking as you approach
- Supports Apple Home Key for tap-to-unlock with compatible devices
- Matter over Thread ensures fast, stable smart home connectivity
- Rechargeable battery allows USB-C charging without removing the lock
- IP65 rating protects against dust and water for outdoor use
Cons
- NFC cards are sold separately
- UWB hands-free unlocking requires specific Apple Watch and iPhone models
- Requires a Thread-enabled Matter controller for full smart features
Good fit if
- You use an iPhone 11 or later with iOS 18.5+
- You have a Thread-enabled Apple Home hub
- You want hands-free entry when carrying items
Skip if
- You do not own a compatible Apple Watch
- You lack a Thread-enabled Matter controller
- You prefer non-rechargeable battery options
Verdict: Aqara U400 UWB Smart Lock is ideal for Apple users seeking hands-free convenience and robust security through UWB and Thread connectivity. It fits homes with compatible iOS devices and Matter hubs but excludes those without the required ecosystem hardware.
Ulecoce Fingerprint Deadbolt with Knob
Best for: fast fingerprint entry and app management
- Access Methods
- Fingerprint, keypad, app, key
- Smart Home Compatibility
- Alexa, Google Assistant
- Auto-Lock Delay
- 5 to 60 seconds
- Included Door Hardware
- Deadbolt with knob set
- Color
- Black
- Application
- Front Door
View on Amazon: Ulecoce Fingerprint Deadbolt with Knob Affiliate link
The Ulecoce U68 is a matte black deadbolt with an integrated knob set. It unlocks in 0.3 seconds via fingerprint or keypad. You can manage up to 512 fingerprints and passcodes through the app. Remote access works within a 5-meter range. It supports Alexa and Google Assistant when paired with a separate gateway. This lock suits users who want quick entry and app-based management for family members.
Pros
- 0.3-second fingerprint recognition speed
- Stores up to 512 fingerprints and passcodes
- App control for remote management and logs
- Compatible with Alexa and Google Assistant
Cons
- Gateway sold separately for voice control
- Remote app unlock limited to 5-meter range
- No built-in video camera or doorbell
Good fit if
- You want a 0.3-second unlock speed
- You need app-based temporary password sharing
- You prefer a knob set over a lever
Skip if
- You require voice control without extra hardware
- You need remote unlocking from outside your home
- You want a lock with a built-in camera
Verdict: Ulecoce U68 Matte Black Knob offers fast fingerprint access and app management. It fits users who value speed and remote code control over long-range unlocking.
Specifications side by side
| Spec | Aqara U400 UWB Smart Deadbolt | Ulecoce Fingerprint Deadbolt with Knob |
|---|---|---|
| Access Methods | Fingerprint, keypad, app, key, NFC, UWB | Fingerprint, keypad, app, key |
| Connectivity | Matter over Thread, UWB | not stated |
| Smart Home Compatibility | HomeKit, Alexa, Google, Home Assistant | Alexa, Google Assistant |
| Auto-Lock Delay | not stated | 5 to 60 seconds |
| Included Door Hardware | Deadbolt | Deadbolt with knob set |
| Power Source | Battery Powered | not stated |
| Access Method | Fingerprint, Key | Keypad, Fingerprint, App Control |
| Color | Silver | Black |
| Application | Home | Front Door |
| Included Hardware | not stated | Knob |
| Special Features | not stated | Auto Lock |
| Dimensions | 3 × 4.2 × 7 inches | 3.54 × 7.17 × 11 inches |
| Weight | not stated | 2 pounds |
| Model | DL-D16E | Ulecoce U68 |
| Size | not stated | / |
Frequently asked questions
Which smart lock supports Apple Home Key for hands-free entry?
The Aqara U400 UWB Smart Deadbolt supports Apple Home Key. It uses Ultra-Wideband technology to detect your iPhone or Apple Watch. This allows for automatic unlocking as you approach the door. The Ulecoce U68 does not offer this specific hands-free feature.
What access methods does the Ulecoce U68 provide?
The Ulecoce U68 Fingerprint Deadbolt with Knob uses a keypad and fingerprint scanner. It includes a standard knob for manual operation. The Aqara U400 uses a fingerprint sensor and a physical key. Neither lock lists voice control or facial recognition as an access method.
How do the dimensions of these two locks compare?
The Ulecoce U68 is larger, measuring 11 inches in height and 7.17 inches in width. The Aqara U400 is more compact at 7 inches high and 4.2 inches wide. Both locks have a similar depth, with the Ulecoce at 3.54 inches and the Aqara at 3 inches.
Does the Aqara U400 require a physical key?
Yes, the Aqara U400 UWB Smart Deadbolt includes a physical key as an access method. You can also use your fingerprint. The Ulecoce U68 relies on a keypad and fingerprint. It comes with a knob but does not list a physical key in its included hardware.
Which lock is better for users who want app management?
The Ulecoce U68 is described as ideal for users who value app management. It allows for remote code control. The Aqara U400 focuses on hands-free UWB access for Apple ecosystem users. It prioritizes automatic entry over manual app-based code management.
What colors are available for these smart deadbolts?
The Aqara U400 UWB Smart Deadbolt is available in Silver. The Ulecoce U68 Fingerprint Deadbolt comes in Matte Black. Both options are designed for home application. The choice depends on your preference for a lighter or darker finish on your entryway.
Is the Ulecoce U68 heavier than the Aqara U400?
The Ulecoce U68 weighs 3.45 pounds. The Aqara U400 does not list a weight in its specifications. Based on the available data, the Ulecoce model has a measurable weight. The Aqara model is smaller in physical dimensions, which may suggest a lighter build.
Can I use the Aqara U400 without an Apple device?
The Aqara U400 is ideal for Apple ecosystem users. It relies on UWB and Apple Home Key for hands-free entry. You need a compatible iOS device for this feature. You can still use the fingerprint sensor and physical key if you do not have an Apple device.

