eufy Security Smart Lock E31 Fingerprint Review (2026): A Spec-Based Look
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This eufy security smart lock e31 review focuses on the specs that matter most for daily use. The eufy Security Smart Lock E31 is a keyless entry deadbolt designed for modern homes. It stands out for two main reasons: its 10,000mAh rechargeable battery, which offers up to 14 months of power, and its ultra-fast fingerprint recognition that unlocks in under 0.3 seconds. You can also control it via Apple Home, Google Home, or Alexa. This lock supports multiple access methods, including a keypad, app, voice commands, and a physical key. It is built for families who need reliable, quick entry without carrying traditional keys.
What stands out
- Unlocks in less than 0.3 seconds using fingerprint technology.
- Features a 10,000mAh rechargeable battery with up to 14 months of life.
- Integrates directly with Apple Home, Google Home, and Alexa.
- Supports five access methods: fingerprint, app, keypad, key, and voice.
- Offers 15-minute installation without drilling.
Who it fits
Good fit for
This lock suits families who want fast, keyless entry. The 0.3-second fingerprint unlock is ideal for busy mornings. If you use Apple Home, Google Home, or Alexa, you get seamless remote control and real-time notifications. The 14-month battery life means less frequent charging, which helps if you forget maintenance. The 15-minute no-drill installation is perfect for renters or homeowners who want a quick upgrade without major tools. It also works well if you need multiple access options for different family members.
Who should skip it
You might look elsewhere if you need a lock with a traditional key-only option as the primary method. This model relies heavily on digital access, including fingerprint and app control. If you prefer a lock with a more traditional aesthetic, note that this model comes in a modern style. Also, if you do not have a compatible smart home hub like Apple Home or Alexa, you may miss out on remote features. The lock requires a rechargeable battery, so you cannot use standard disposable batteries for long-term use.
Verdict: The eufy Security Smart Lock E31 offers fast fingerprint entry and long battery life for smart home users. It is a practical choice for families seeking keyless convenience and easy installation.
Key specs for this lock
Access Methods: Fingerprint, app, keypad, key, voice
You have five ways to enter. The fingerprint unlocks in under 0.3 seconds. You can also use the app, keypad, physical key, or voice commands via Siri, Alexa, or Google Assistant. This variety suits families with different preferences. It ensures you can always enter, even if one method fails or the battery dies. Compare this versatility with locks that offer fewer options.
Smart Home Compatibility: Apple Home, Google Home, Alexa
The lock integrates directly with major smart home hubs. You can control it remotely via Apple Home or other apps. Features include access management, real-time notifications, and event logs. This allows you to grant temporary access to guests or service providers. It fits well into existing ecosystems. Check if your current hub supports these platforms before buying.
Battery: 10,000mAh rechargeable
This large rechargeable battery typically lasts up to 14 months. The estimate assumes an average of 10 unlocks per day. You receive alerts at 20% charge. A power save mode extends usage by one more month. If the battery dies completely, you can use a portable charger to unlock the door. This reduces the frequency of charging compared to smaller batteries.
Installation: 15-minute, no drilling
You can install this deadbolt in about 15 minutes without drilling new holes. This simplifies the process for renters or those who want to preserve existing door hardware. It avoids the need for professional installation services. The design supports easy setup. This convenience is a significant advantage over locks requiring complex modifications or professional fitting.
Design and build details
The eufy Security Smart Lock E31 features a modern style in a black finish. According to the listing, the unit measures 7.7 inches in width, 8.1 inches in length, and 4.4 inches in height. This compact footprint allows it to fit standard door preparations without requiring major modifications. The model number is T85F0, and variations exist in traditional shapes as well. You get a sleek exterior that blends with contemporary entryways.
The lock body houses the fingerprint sensor, keypad, and internal mechanisms within this single housing. The design prioritizes a streamlined look over exposed hardware. You do not need to drill new holes for installation, as the listing notes a 15-minute setup process. This suggests a straightforward swap with your existing deadbolt. The black color hides minor scuffs better than lighter finishes, which helps maintain appearance over time.
Power comes from a 10,000mAh rechargeable battery pack inside the unit. This internal placement keeps the exterior clean and weather-resistant. You receive low battery alerts at 20% charge. If the power dies, you can use a portable charger to unlock the door. The 18-month electronic protection and 36-month mechanical coverage are part of the build warranty. These specs indicate a focus on durability and long-term reliability for daily family use.
Setup and everyday use details
The listing states that installation takes approximately 15 minutes and requires no drilling. This suggests a straightforward process for replacing an existing deadbolt. You can manage the device through the eufy app or compatible smart home hubs. The lock supports Apple Home, Google Home, and Alexa. You can also integrate it with SmartThings. This allows you to control the lock remotely or via voice commands. For Apple users, a HomePod or other hub enables remote operation. You receive real-time notifications and can view event logs through these apps. Access management is handled digitally, letting you grant or revoke entry for family members. The fingerprint sensor recognizes users in under 0.3 seconds. It improves its recognition accuracy with each use. You have five ways to enter: fingerprint, app, keypad, physical key, or voice. The 10,000mAh rechargeable battery provides up to 14 months of power, assuming an average of 10 unlocks per day. Low battery alerts trigger at 20% charge. A power save mode extends usage by one additional month. If the battery dies completely, you can use a portable charger to unlock the door. The device includes 18 months of electronic protection and 36 months of mechanical coverage. Customer support is available 24/7. These specs indicate a focus on convenience and reliability for daily entry.
Before You Buy This Lock
You should verify that your home hub supports Apple Home, Google Home, or Alexa before purchasing. The listing notes that remote control requires a compatible hub like an Apple HomePod. Without one, you may need to install an additional device to manage access remotely. You also need to ensure your door thickness matches the lock’s dimensions. The unit measures 7.7 inches wide, 8.1 inches long, and 4.4 inches high. This modern design fits most standard residential doors. You should check if your existing deadbolt hole aligns with the new strike plate to avoid drilling. Battery care is simple, but you should keep a portable charger nearby. The lock uses a 10,000mAh battery. If it dies, you can still unlock the door manually. This lock competes well with other keyless entry options. It offers five access methods. The fingerprint sensor is fast. You should compare it with other smart locks that offer similar battery life and app integration. The choice depends on your current smart home setup.
Check before you buy
- Check if your hub supports Apple Home, Google Home, or Alexa.
- Measure your door thickness to ensure the lock fits properly.
- Verify existing deadbolt holes align with the new strike plate.
- Keep a portable charger ready for emergency manual unlocking.
The product at a glance
eufy Security Smart Lock E31 Fingerprint Deadbolt
Best for: Apple Home users needing fast fingerprint entry
- Access Methods
- Fingerprint, app, keypad, physical key
- Connectivity
- Built-in Wi-Fi, Matter
- Smart Home Compatibility
- Apple Home, Google, Alexa, SmartThings
- Power Source
- Battery Powered
- Color
- Black
- Application
- Home, Front Door
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The eufy Security Smart Lock E31 offers keyless entry with fingerprint, app, keypad, physical key, and voice access. It integrates with Apple Home, Google Home, and Alexa. The 10,000mAh battery provides up to 14 months of use. It features fast unlocking under 0.3 seconds and remote control via hubs. This modern black lock suits families needing versatile entry options.
Pros
- Supports Apple Home, Google Home, and Alexa
- Unlocks in under 0.3 seconds via fingerprint
- 10,000mAh battery lasts up to 14 months
- Includes physical key and keypad entry
Cons
- Large dimensions at 7.7 x 8.1 x 4.4 inches
- Requires a hub for remote control features
- No Bluetooth direct connection mentioned in data
Good fit if
- You want seamless Apple Home integration
- You need multiple unlock methods for family members
- You prefer long battery life between charges
Skip if
- You require direct Bluetooth control without a hub
- You have limited space for a bulky lock
- You only use Google Home without other hubs
Verdict: eufy Security E31 Smart Lock fits users who need reliable multi-method entry and Apple Home compatibility. It is ideal for households valuing long battery life and fast fingerprint recognition.
Specifications side by side
| Spec | eufy Security Smart Lock E31 Fingerprint Deadbolt |
|---|---|
| Access Methods | Fingerprint, app, keypad, physical key |
| Connectivity | Built-in Wi-Fi, Matter |
| Smart Home Compatibility | Apple Home, Google, Alexa, SmartThings |
| Power Source | Battery Powered |
| Access Method | Fingerprint, App Control |
| Color | Black |
| Application | Home, Front Door |
| Style | Modern |
| Special Features | Auto Lock |
| Dimensions | 8.1 × 7.7 × 4.4 inches |
| Size | 7.7 inches x 8.1 inches x 4.4 inches |
| Model | T85F0 |
Frequently asked questions
Does the eufy Security Smart Lock E31 work with Apple Home?
Yes, this lock is compatible with Apple Home. The product data identifies it as ideal for Apple Home users needing fast fingerprint entry. You can use voice commands via Siri to control the lock. This integration allows for seamless operation within the Apple ecosystem without requiring additional hubs for basic functionality.
How large is the eufy Security Smart Lock E31 deadbolt?
The unit measures 7.7 inches in width, 8.1 inches in length, and 4.4 inches in height. These dimensions are based on the published specifications for model T85F0. The compact footprint is designed to fit standard door frames while maintaining a modern aesthetic. You should verify your door thickness before installation.
What access methods does the E31 fingerprint lock support?
You have five ways to enter: fingerprint, app, keypad, physical key, and voice commands. The fingerprint sensor unlocks in under 0.3 seconds according to the specs. You can also control the lock remotely via the eufy app or through voice assistants like Siri, Alexa, or Google Assistant.
Is the eufy Security Smart Lock E31 available in other colors?
The listing specifies the color as Black. The style is described as Modern. No other color options are mentioned in the provided product data. You should check the retailer for current inventory, as availability may vary by region or stock.
Can I use voice control with the E31 smart lock?
Yes, you can use voice commands via Siri, Alexa, or Google Assistant. This feature allows you to lock or unlock the door hands-free. The lock supports integration with major smart home platforms. You need to ensure your hub is compatible for full functionality.
What is the model number for this eufy security smart lock?
The model number is T85F0. This identifier corresponds to the eufy Security Smart Lock E31 Fingerprint Deadbolt. You can use this number to verify compatibility with existing hardware or to find replacement parts. It distinguishes this specific black, modern-style unit from other variants.