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Customer reviews for eufy E31 Keyless Entry Smart Lock with Fingerprint Reader for
eufy E31 Keyless Entry Smart Lock with Fingerprint Reader
4.7 out of 5 stars
stars17 ratings17 reviews
  1. 5 stars71% (12)
  2. 4 stars29% (5)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
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Showing 1-10 of 17 reviews
Jul 30, 2025
Kyle
5 out of 5 stars review

Great lock with HomeKit functionality

In short, this is a great product, exceptionally easy to install and functions well enough that we decided to purchase a second. After choosing to go with Eufy's camera products for our new home, we opted to add this smart lock to our back door given that it's the one we use the most. We were also intrigued/hopeful about the fingerprint reader - with a toddler, fumbling with keys trying to get in, especially if carrying groceries, is a tedious process, and we wanted this to make life easier. Ultimately, it has done just that while providing peace of mind at all hours. The installation process is remarkably simple and the app walks you through it step by step. We found the provided strikeplate to not fit on our doorframe correctly so we left the existing plate, which caused no issues. I would absolutely recommend using the Eufy app rather than relying on Home alone (or any other Matter-connected system). The app provides far more options to customize to your needs/wants, including adding numerous entry codes and fingerprints, as well as guest-specific codes. Adding fingerprints is quite simple and closely resembles the process from older iPhone fingerprint scanning. However, keep in mind how you expect to actually scan your finger when (un)locking. The scanner works well and does learn better over time, but it is still a bit sensitive so if I try to put my thumb over it sideways or upside down, it often rejects the read because I scanned it upward originally. An easy workaround is simply adding additional prints for those respective fingers from different angles. However, it's more important for security purposes to use the app simultaneously with Home/Matter because the app is more reliable and consistent. I have never had the device disconnect from Home or not be reachable/usable, but I don't always get notifications when the door (un)locks from Home. The Eufy app is more reliable in this way, not only pushing alerts immediately but also notifying who is doing it when it happens from outside (by fingerprint) or how it failed. I believe some of their newer premium locks perform better with Matter in this way, but ultimately it's not a deterrent for me given that Home still consistently shows the status and allows me to (un)lock the door directly, and I use the app already for the other Eufy products. In all, although not always flawless in execution, the lock works really well. The battery is long lasting still showing full bars of charge after two full months of use, and the fingerprint reader is a nice addition that works on first try the majority of the time but the personalized codes are a phenomenal backup with a key as a tertiary option. We purchased a second lock recently for our other door simply to add the peace of mind knowing when the doors are locked, as well as being able to autolock at night. I'd highly recommend, ESPECIALLY if you're already bought into the Eufy system.

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Dec 4, 2025
anisai_8343
5 out of 5 stars review

Great product

[This review was collected as part of a promotion.] Great product the battery life has been good and we have never had an issue. Installation was simple too! Very happy with it overall and highly recommend it.

Review from influenster.com
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Mar 25, 2025
rachelrae7_4999
5 out of 5 stars review

Game changer

[This review was collected as part of a promotion.] The home system I never knew I needed! I am currently redoing my mudroom and a new smart lock was a perfect addition! Very similar to the key less locks used at Air BnB’s, and easy to install. I love the feature of having an app on your phone to be able to unlock your door. Hands full of groceries? Unlock your door from your car! My only concern would be that the battery life only lasts for a certain amount of time. I believe a little over a year so after a year, you would have to change the battery I believe.

Review from influenster.com
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Mar 8, 2025
gillyweiss_8705
5 out of 5 stars review

Great Smart Lock!

[This review was collected as part of a promotion.] We love our new Eufy smart lock! It was easy to install, even on our older door. It gives us peace of mind to be able to lock the door through the app. I’m someone always wondering, “did I remember to lock the door?” And this solves that worry! We are looking forward to being able to remotely lock and unlock the door for family and friends. It looks sleek and the buttons are easy to push. This is a product we are so happy to have!

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Feb 7, 2025
kimberleyhdd14_6932
5 out of 5 stars review

Has both physical keys and can be unlocked digital

[This review was collected as part of a promotion.] This product is exactly as pictured. It is easy to install. Not sure of battery life yet, but if I have issues I will contact the company. I like that you can unlock it with your phone,(apple), or with a physical key. It alerts you when the door has been unlocked. I would recommend this product. Great quality and easy install.

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Mar 11, 2025
likirin_846
5 out of 5 stars review

Safe and comfortable

[This review was collected as part of a promotion.] I haven’t had a Smart Lock before. At first, the kit included everything you need to install the lock. Also there is kit of keys for the lock if you want to use it on the old man. It’s easy to install. I like that I can give access to my house remotely and I still don’t have to carry those keys from the kitchen. Can’t say anything about the battery life yet except that it’s here. I think the price to quality ratio of this lock is excellent

Review from influenster.com
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Mar 20, 2025
syingst_6106
5 out of 5 stars review

Love the easy installation and the ease of use!

[This review was collected as part of a promotion.] Wow! This is an amazing smart lock. It was super easy to install and is easily one of the best smart locks for the value. I’m not sure if it’s much more secure than a normal lock - I guess the fingerprint would make it harder to bypass though. Can’t say much about the battery power at this point. It’s been a couple of weeks and it’s still going strong for now, but we will see if that changes. I do think this is worth the price, especially for the ease of use. It also looks really cool once installed, dresses up the door and makes it look like we are putting a lot of effort into security (even if it’s just a lock).

Review from influenster.com
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Nov 21, 2025
Storm
4 out of 5 stars review

Worthy

So far so good. The battery did not last one year. Installed it in July and battery was drained by October. We charged it and it worked. While charging we just used the keys that came with it. Finger print is good. Code is good as well. We used temporary codes for the in-laws. Good product.

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reply from Eufy Team

So glad you love the product! Thank you for your support. We are super excited to provide something that betters your life. We promise to continue striving to exceed your expectations! <br /><br />Remember your device comes with the manufacturer warranty, and anytime you need help just let us know. <br />Email: support&#64;eufy.com<br />Phone number: &#43;1 (800) 988-7973

Mar 24, 2025
mirandabrown4c45278_6781
4 out of 5 stars review

Safety bonus

[This review was collected as part of a promotion.] Works perfect and easy to install! I have not had any issues with battery life yet it says a 14 month battery life and I’ve had it installed for about 2 weeks so I can’t say too much on battery life. The app is easy to use very simple straight forward. Comes with everything you need for quick easy installation. It auto locks if you forget.

Review from influenster.com
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Mar 10, 2025
helloaryk_2418
4 out of 5 stars review

eufy Smart Lock

[This review was collected as part of a promotion.] This smart lock was easy to install and it paired well with the App. I had no issues with removing my old lock and installing this new lock which was a pleasant surprise. It's great for feeling secure in the house and also when leaving so it gives a sense of extra protection. It works well with the app and it's a plus when I have friends/family that come over because I can give them a code to come in, instead of finding a spare house key.

Review from influenster.com
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