Aqara Smart Lock U100 Review | Fingerprint, Apple Home Key

Smart locks are quickly becoming essential for modern homes, blending convenience, security, and smart integration. The Aqara Smart Lock U100 stands out in this space with its fingerprint recognition, Apple Home Key compatibility, touchscreen keypad, Bluetooth deadbolt, and IP65 weatherproof rating. Designed for seamless integration with Apple HomeKit, Alexa, Google Assistant, and IFTTT, it provides homeowners with advanced security and flexibility in one stylish package.

In this review, we’ll cover the design, installation, unlocking methods, smart integrations, durability, and overall value of the Aqara Smart Lock U100 to see why it’s a solid upgrade for your home security system.

Aqara Smart Lock U100, Fingerprint Keyless Entry Door Lock with Apple…

【Apple Home and Home Key Support】The U100 is a smart door lock that is fully integrated into Apple Home. It can be unlocked with the Apple home keys by simply tapping an iPhone or Apple Watch, even when the iPhone or Apple Watch is out of power. Moreover, you can manage and share door access for your guests in Apple Home.

Sleek & Modern Design

The Aqara Smart Lock U100 has a premium and minimalist look that complements most door styles. Its matte gray finish feels modern while maintaining a subtle appearance that doesn’t scream “tech gadget” from your front door.

The touchscreen keypad is illuminated for easy visibility at night, and the discreet fingerprint sensor is positioned for quick access. Unlike bulky smart locks, the U100 maintains a streamlined design that blends form and function.

Multiple Unlocking Methods

One of the biggest strengths of the Aqara U100 is its versatility in entry methods. You can unlock your door in several ways, making it convenient for family members, guests, or even service providers.

Unlocking Options:

Fingerprint recognition – Quick, reliable, and secure. Works in less than a second.
Apple Home Key – Tap your iPhone or Apple Watch to unlock, just like Apple Pay.
Touchscreen keypad – Enter custom PIN codes, ideal for guests or kids.
Bluetooth via Aqara Home App – Unlock from your phone when nearby.
Voice Assistants – Works with Alexa, Google Assistant, and Siri.
Physical keys – Backup option for emergencies.

Having multiple options ensures you’re never locked out, even if your phone is dead or Wi-Fi is down.

Fingerprint Recognition

The fingerprint scanner is one of the most reliable features on this lock. It supports multiple stored prints, so each family member can have their own. Recognition is fast, with less than a second to unlock, and the sensor is designed to work even in different weather conditions.

For everyday use, this is the most convenient method—you don’t need to carry keys or pull out your phone.

Apple Home Key Support

For Apple users, the Apple Home Key feature is a game-changer. Simply tap your iPhone or Apple Watch near the lock to unlock. This works even if your phone battery is critically low, thanks to Apple’s Power Reserve mode.

Integration with the Apple Home app also means you can check lock status remotely, set automations, and include the lock in smart routines like “Goodnight” or “Away” modes.

Touchscreen Keypad

The illuminated touchscreen keypad lets you set unique PIN codes for different people. For example:

Permanent codes for family members.
Temporary codes for guests or Airbnb renters.
One-time codes for deliveries or service workers.

This flexibility enhances convenience without compromising security.

Smart Home Integration

The Aqara U100 supports a wide range of ecosystems:

Apple HomeKit – Full integration with automations and Siri.
Amazon Alexa – Voice control and remote lock/unlock.
Google Assistant – Works with Google Home for voice and routines.
IFTTT – Advanced custom automations across devices.

This makes it one of the most versatile smart locks available, fitting into almost any smart home setup.

Bluetooth Deadbolt & Local Control

The lock connects via Bluetooth, which ensures local control without relying on cloud services. This improves reliability and ensures the lock continues working even if Wi-Fi goes down.

For remote access, you can pair it with an Aqara Hub or compatible Apple Home Hub (HomePod or Apple TV). This allows you to check lock status, unlock from anywhere, and integrate it into more advanced automations.

IP65 Weatherproof Rating

Outdoor smart locks need durability, and the U100 delivers with an IP65 weatherproof rating. This means it’s resistant to dust, rain, and extreme temperatures, making it suitable for front doors, back doors, or side entrances.

The keypad and fingerprint sensor are also designed to remain responsive in wet or cold conditions.

Battery Life & Power Options

The Aqara U100 is powered by AA batteries, which typically last up to 8 months depending on usage. The lock notifies you when batteries run low, and in emergencies, you can use a USB-C power bank to temporarily power the lock and gain entry.

This design ensures you’re never locked out due to dead batteries.

Installation Process

Installing the Aqara U100 is relatively straightforward for anyone familiar with standard deadbolts. It’s designed to fit most U.S. single-cylinder doors without requiring major modifications.

The box includes all the necessary hardware, and the step-by-step guide in the Aqara app simplifies the process. For those less experienced with DIY, a locksmith can handle installation in under an hour.

Security Features

Beyond convenience, the U100 prioritizes security:

AES encryption ensures communication between the lock and app is secure.
Auto-lock function can be enabled to lock the door after a set time.
Tamper alarms trigger if forced entry is detected.
Custom PIN settings prevent repeated incorrect attempts.

Combined with strong smart integrations, these features provide a solid layer of protection for your home.

Daily Performance

In real-world use, the Aqara U100 proves fast, reliable, and convenient:

Fingerprint unlock works instantly.
Apple Home Key integration is seamless.
The keypad is responsive day and night.
Voice commands via Alexa and Google are accurate.
The lock feels sturdy and dependable during everyday use.

Homeowners upgrading from traditional deadbolts or basic smart locks will notice the difference immediately in both convenience and smart functionality.

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Pros & Cons

Pros:

Multiple unlocking methods (fingerprint, Apple Home Key, keypad, app, voice, key).
Apple HomeKit, Alexa, Google Assistant, and IFTTT support.
IP65 weatherproof rating for outdoor durability.
Easy installation with most U.S. doors.
Auto-lock and tamper detection for added security.
Long battery life with USB-C backup power option.
Sleek, modern design with illuminated keypad.

Cons:

Requires hub for full remote access features.
AA batteries need replacing every 6–8 months.
Apple Home Key is most beneficial for iPhone/Apple Watch users.

Who Should Buy the Aqara Smart Lock U100?

This smart lock is perfect for:

Apple ecosystem users who want seamless Home Key support.
Smart home enthusiasts seeking Alexa, Google, or IFTTT compatibility.
Families who want multiple entry methods for convenience.
Airbnb or rental hosts who need temporary codes for guests.
Homeowners in tough climates needing weatherproof security.

It may not be the cheapest option, but for its range of features, durability, and smart compatibility, it’s an excellent value.

Final Verdict

The Aqara Smart Lock U100 is one of the most versatile and reliable smart locks available in 2025. With fingerprint recognition, Apple Home Key, touchscreen keypad, Bluetooth control, and IP65 weatherproofing, it balances security and convenience in one elegant package.

For families, Apple users, and smart home enthusiasts, it delivers seamless integration, durable build quality, and multiple unlocking methods that fit into modern lifestyles.

If you’re looking to upgrade your home security with a future-ready smart lock, the Aqara U100 is a top-tier choice.

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