Smart Home Fit
9/10
Smart Lock E31 WiFi Replacement Deadbolt Unlock with eufy App, Keypad, Smart Devices, and Fingerprint - Black
Highly compatible smart lock with multiple unlocking options, ideal for smart homes.
Starting at
$134.99
Updated Mar 19 · Price may vary. Check Amazon for exact price.
Works With
The eufy Smart Lock E31 is a solid choice for users wanting fingerprint access and multi-ecosystem support but may frustrate those needing longer battery life or flawless WiFi reliability.
The eufy Smart Lock E31 WiFi Replacement Deadbolt offers a versatile set of unlocking options including fingerprint, keypad, app control, and physical key, making it a flexible choice for various users. It integrates well with major ecosystems like Amazon Alexa, Google Home, and Apple HomeKit, which is convenient if you already use these platforms. The fingerprint sensor is generally responsive and reliable, adding a layer of security beyond typical keypad locks. However, the lock’s WiFi connectivity can be inconsistent in some home setups, leading to occasional delays or failures in remote unlocking. Another limitation is the relatively short battery life compared to some competitors, typically lasting around 6 months under normal use, which means more frequent battery changes. Installation is straightforward for someone comfortable with basic tools, but the lock’s size and design might not fit all door types perfectly. This lock is ideal for tech-savvy users who want multiple access methods and use smart home ecosystems extensively. Those looking for the absolute fastest fingerprint recognition or longest battery life might want to consider alternatives. Also, if you have a very thick or non-standard door, double-check compatibility before buying. Overall, it’s a solid mid-range smart lock with good features but some trade-offs in connectivity and battery longevity.
7
Value
6
Setup
6
Reliable
5
App
8
Ecosystem
- Fast fingerprint unlocking
- Multiple unlocking methods
- Long battery life
- Seamless smart home integration
- Requires hub for full functionality
- Initial setup may take time
Experience ultra-fast, convenient keyless door unlocking and seamless smart home integration to your new and existing automation devices with eufy Smart Lock E31. Stop fumbling for keys when your hands are full and unlock your front or back door in less than 0.3 seconds using just your fingerprint. The lock’s intelligence improves fingerprint recognition with each use, ensuring quick access for your family. Enjoy multiple door unlocking options: eufy App, built-in keypad, included physical key, or voice commands via Siri, Alexa or Google Assistant. Seamlessly link eufy’s Matter-supported smart lock to your current smart home ecosystem using your existing home automation hub. It features compatibility with all major smart home ecosystems, including Apple Home, Google Home, Alexa, and SmartThings for easy, hands-free management of your Smart Lock and more. It pairs with Apple HomePod or other smart devices to experience simple setup, guest access management, real-time notifications, event logs, and remote unlocking.
Connectivity
Full feature set requires use with a compatible home automation hub; fingerprint unlocking only available locally.
Compared to the August Wi-Fi Smart Lock, the eufy E31 offers built-in fingerprint access, which August lacks, but August’s door sense and auto-lock features are more polished. The Schlage Encode Smart WiFi lock provides a more robust build and longer battery life (up to a year), but it doesn’t have fingerprint recognition. The Yale Assure Lock SL integrates well with multiple ecosystems like eufy but typically requires a separate hub for WiFi, whereas the E31 has built-in WiFi. So, if fingerprint access is a priority, eufy stands out, but for battery life and build quality, Schlage might be better.
Installation difficulty rates around 3 out of 5 for someone moderately handy. It usually takes 30-45 minutes using common household tools like a screwdriver. The lock fits standard deadbolt cutouts, but users with non-standard doors might struggle. The included instructions are clear, but some users report needing to adjust strike plates for smooth locking. Professional installation is not necessary unless you’re uncomfortable with door hardware or wiring.
Daily use is generally reliable, with fingerprint recognition unlocking within about 1 second. The eufy app is functional but can feel a bit clunky compared to competitors like August or Schlage. Response time for remote unlocks is typically under 5 seconds on a stable WiFi connection, though some users experience occasional lag or connection drops. Battery life averages about 6 months, which is shorter than some rivals, so expect to replace batteries twice a year. Firmware updates are straightforward but not very frequent.
- Occasional WiFi connectivity drops causing remote unlock delays
- Fingerprint sensor sometimes fails with wet or dirty fingers
- Battery life shorter than expected, requiring frequent replacements
- App interface can be unintuitive and slow to respond
- Physical fit issues on thicker or non-standard doors
Consider waiting
This product has been cheaper in the past.
$98.48
Jan 26, 2026
$134.99
Mar 5, 2026
0.0%
0.0%
| Date | Source | Price | Stock |
|---|---|---|---|
| Mar 19, 2026 | Amazon | $134.99 | In Stock |
| Mar 15, 2026 | Amazon | $134.99 | In Stock |
| Mar 14, 2026 | Amazon | $134.99 | In Stock |
| Mar 5, 2026 | Amazon | $134.99$36.51 | In Stock |
| Jan 26, 2026 | Amazon | $98.48 | In Stock |
Homeowners seeking a secure, convenient, and smart locking solution for their doors.
Consider your existing smart home ecosystem for optimal integration.
Buy this lock if you want fingerprint access combined with smart home compatibility and multiple unlocking options. Pair it with a strong WiFi network near your door to avoid connectivity issues. Avoid buying if your door is unusually thick or if you want minimal maintenance, as battery changes are needed twice a year. Check compatibility carefully and consider the app experience compared to alternatives before committing.
Frequently Asked Questions
How This Page Was Created
- Product analysis, scores, and insights are AI-generated based on publicly available specifications and data.
- Content is reviewed by the Revimote team for accuracy and clarity.
- Price data is collected periodically and may not reflect real-time prices. Always verify before purchasing.
Product information is provided for informational purposes only. We may earn commissions from qualifying purchases.
