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eufy Security

eufy Security Smart Lock E31, Fingerprint Keyless Entry Door Lock

  • Based on 274 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Oct 25 – Oct 26
Order within 2 hours and 21 minutes
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Item Shape: Modern


Features

  • Apple Home Support: The eufy Smart Lock E31 is designed to work directly with your existing hub, offering seamless integration with Apple Home, Google Home, Alexa, and SmartThings.
  • Unlock for the Whole Family's Needs: Unlock in less than 0.3 seconds using the fingerprint, APP control, the keypad, physical key, or voice commands via Siri, Alexa or Google Assistant. Experience an ultra-fast and effortless unlocking process that continuously improves its fingerprint recognition with each use, ensuring quick and hassle-free entry for all family members.
  • Up to 14 Months Battery Life: Powered by 10,000mAh rechargeable batteries, the eufy Smart Lock typically lasts up to 14 months, depending on usage frequency (based on an average of 10 unlocks per day). Receive low battery alerts at 20% charge, with power save mode lasting up to one more month. Use a portable charger to unlock your Smart Lock if the battery dies.
  • Remote Control via Homepod or Other Hubs: Easily control your Smart Lock remotely with Apple Home or other apps. Features include simple setup, access management, real-time notifications, event logs, and remote unlocking. Note: For more details, please refer to the Q&A and Rich Context sections.
  • Easy Installation and Excellent Customer Service: Our smart lock offers easy 15-minute installation without drilling. Enjoy peace of mind with 18 months of electronic protection and 36 months of mechanical coverage, backed by our reliable after-sales service and professional 24/7 customer support.

Description

eufy Smart Lock E31 eufy Smart Lock E40 eufy Smart Lock E32 eufy Indoor Lock C32 eufy FamiLock S3 Max Smart Lock C220 eufy FamiLock E34 Is this Smart Lock compatible with eufy ecosystem, Apple Home, SmartThings, Google home, Amazon Alexa? Yes, this smart lock is compatible Matter over thread. For instance, you can use your iPhone, iPad to lock and unlock your device (HomeKey is not supported). Additionally, you can set up home automation to simplify your life. Does this smart lock require a hub to connect to Apple Home, Google Home, Amazon Alexa, Samsung SmartThings？ A hub that supports Matter is required for this device to connect to the third-party ecosystem (Apple Home, Google Home, Amazon Alexa, Samsung SmartThings). This is a necessary condition for all matter devices to integrate with these platforms. How many fingerprints and passcodes can the eufy Smart Lock E30 store? Up to 50 fingerprints and 100 different passcodes. Whats the requirement for installation? Any door with a wood or metal construction could be suitable Dimensions required: Crossbore diameter: 1 1/2 in or 2 1/8 in. Backset: 2 3/8 in or 2 3/4 in. A hole: 1 in. Door thickness: 1 3/8 in - 2 1/6 in. Location of handleset greater than 1 4/5 in. Anker is a global leader in tech lifestyle, spanning charging, power, smart home, creative tools, and audio & video. As part of One Anker brand upgrade, eufy is now unified as Anker: same products, same quality. In the smart home, Anker eufy offers whole-home security, health-first deep cleaning, and trusted care for families. Our technology brings you expert protection and wellness for body and mind. Everything is built with care for you.

Brand: eufy Security


Special Feature: Auto-Lock


Lock Type: Deadbolt


Item dimensions L x W x H: 8.1 x 7.7 x 4.4 inches


Material: Aluminum


Brand Name: eufy Security


Recommended Uses For Product: Residential Doors


Number of Pieces: 1


Included Components: 10,000mAh Rechargeable Battery, Deadbolt, Pysical Keys


Model Number: T85F0


UPC: 194644227340


Model Name: T85F0J11


Number of Items: 1


Manufacturer: Anker


Number of Packs: 1


Unit Count: 1 Count


Manufacturer Part Number: T85F0


Additional Features: Auto-Lock


Lock Type: Deadbolt


Control Method: App, Remote, Touch, Voice


Connectivity Protocol: Bluetooth, Matter, Wi-Fi


Style Name: Matter + WiFi + Fingerprint + 10000mAh battery


Color: Black


Shape: Modern


Material Type: Aluminum


Item Dimensions: 8.1 x 7.7 x 4.4 inches


Item Highlight: 10000mAh Battery, Built-in Wi-Fi, App Control, Supports Matter, Apple Home, Alexa, Auto Lock, Front Door Smart Lock Deadbolt


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 25 – Oct 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great lock for the price
Style: Matter + WiFi + Fingerprint + 10000mAh b...
Installation is very easy, it takes no more than 15 minutes if the door has the correct hole size. Quality is very good, it looks very good installed on the door. Not so bulky. Functionality is great, unfortunately it can't be connected with Home Assistant. Configuring finger prints is very straight forward and the touch pad works super fast. ... show more
Reviewed in the United States on November 24, 2025 by Eugenio Bosatta
    • Works well, attractive
Style: Matter + WiFi + Fingerprint + 10000mAh b...
Straightforward Instalation instructions. Previous Kwikset Halo about 4 years old, and never been able to update firmware. Batteries required changing about every two months. Never again. Eufy E31 has a specific dead bolt configuration so necessary to remove previous bolt mechanism. All installation a breeze. Recognized WiFi network quickly and logged in seamlessly. Added to Alexa devices and can now voice control with code request. So far perfect replacement. Supplied rechargeable battery module pack with emergency USB power. A different excellent experience. I’ve been battling quick set and happy this lock is performing as it should. Competitive pricing a real plus. ... show more
Reviewed in the United States on December 12, 2025 by Jeff B
    • Great smart lock
I have been using smart locks for years, and this is my third. The Eufy replaced an August lock, so that will be the direct comparison. The August just replaced the inside portion, so reused the deadbolt mechanism. This Eufy replaces the entire unit, which has both advantages and disadvantages. If you're a renter, or want/need to maintain the existing key, leaving the existing deadbolt is preferred. However, replacing the entire mechanism, like the Eufy does, allows for more features, like the included keypad and fingerprint reader. For the August, the keypad was an add on. The Eufy also included wifi built-in, where with the August it was a separate component that was plugged in near the lock. While that requires more batteries for the Eufy, I prefer the all-in-one solution. The other advantage of the Eufy replacing the entire mechanism is how much more positive and direct the lock feels when locking/unlocking it manually. The August would sometimes get out of sync, and when turning the lock knob by hand, it would engage the motor and you would be turning that, too. The motorized locking is also more precise, and quieter, on the Eufy. The last advantage is really only for those already using Eufy. Having it integrated with the camera app is great. If you have a camera at the entry, you can locl/unlock the door from the same screen as viewing the camera. The fingerprint scanner works great, and is faster and easier than using a code. The one complaint I have is in the app. If you add codes for people like pet sitters, cleaning people, etc., you are limited in terms of how you allow them to use the lock. It's either always or scheduled. And you can't change that without removing the code and adding it back. You also can turn a code on and off. You have to remove it and add it. That's annoying and an inexcusable oversight. Hopefully that will be addressed at some point, but I don't have high hopes. ... show more
Reviewed in the United States on March 2, 2025 by Doug Hill
    • Great smart lock.
Style: Matter + WiFi + Fingerprint + 10000mAh b...
OK, I really like this smart lock. Physical installation was mechanical plug and play... took 5 minutes, literally... swapping from my old Quikset Kevo 1st gen dead bolt, which just ate batteries and worked maybe 10% of the time. Good riddance to that. The logial part of the installation was also very easy and fast. Keypad and fingerprint reader work perfectly and I had no issues with wifi, the Eufy app, or intergration with Matter partners Alexa and Apple Home (more on Apple Home later). Alexa voice control works great, however did lose its connection once where commands failed and Alexa said "there is something wrong with the Front Door (my name for the device). I had Alexa re-poll all my devices and it is back, and so far so good. I don't know if this was a one time thing or something that might become a problem. As for Apple Home, connecting the E31 to that was also simple and the Home app and Siri both controlled the lock perfectly. But as soon as the phones' screen goes off, Apple Home and Siri no longer work the next time. I get "command sent" then command failed messages and then that the device needs to have connection an Apple Home edge router or device like a HomePod, which I don't have. I may get a Mini just so I can use Siri for this lock since it is way more convenient than Alexa that needs a voice security code to unlock. The other negative is that I had all my exterior doors on one key and now I need to carry another one for this. But I knew that going in. I wish every lock maker would license QuikSet's anykey technology which makes re-keying dead simple and quick. Oh, well. The other potentially great thing about this lock is the large rechargeable battery. This looks to be a game changer, even if it gets only about half of the advertised life. No more tossing dozens of AA batteries into the trash or recycling. And hopefully much more life than the 6 weeks I used to get on the batteries for my Kevo POS. I would probably ahve given it 5 stars instead of 4 except this is day one and I have no idea how reliable this thing will prove to be or how the battery performs in the real world. Time will tell. ... show more
Reviewed in the United States on February 2, 2026 by Raybert
    • Easy and convenient
Style: Matter + WiFi + Fingerprint + 10000mAh b...
Absolutely love it. Super easy to install, app is crazy easy, works great for short term rentals. Will be buying more for all of my properties.
Reviewed in the United States on February 16, 2026 by Camygo

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