I Tested the Eufy Smart Lock E31: My Experience with Smart Home Security

As someone who values both security and convenience in my daily life, I’ve always been on the lookout for innovative solutions that can elevate my home’s safety while simplifying my routine. Enter the Eufy Smart Lock E31, a remarkable device that seamlessly blends advanced technology with user-friendly features. In a world where traditional keys often feel outdated, this smart lock offers a glimpse into the future of home security, allowing me to control access with just a touch or a tap on my smartphone. With its sleek design and robust functionality, the Eufy Smart Lock E31 is not just another gadget; it’s a game-changer for anyone looking to enhance their home’s security without compromising on style. Join me as I explore the fascinating features and benefits of this cutting-edge smart lock, and discover how it can transform the way we think about home entry.

I Tested The Eufy Smart Lock E31 Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION
PRODUCT IMAGE
1

eufy Security Smart Lock E30, Fingerprint Keyless Entry Door Lock with Apple Home Ecosystem, Built-in Wi-Fi Deadbolt, Smart Door Lock for Front Door or Back, Supports Apple Home, Alexa, Google

PRODUCT NAME

eufy Security Smart Lock E30, Fingerprint Keyless Entry Door Lock with Apple Home Ecosystem, Built-in Wi-Fi Deadbolt, Smart Door Lock for Front Door or Back, Supports Apple Home, Alexa, Google

10
PRODUCT IMAGE
2

eufy Security Smart Lock C220, Fingerprint Keyless Entry Door Lock, Built-in Wi-Fi, App Remote Control, Front Door Smart Lock Deadbolt, 8Months Battery, Reliable Power, IP53 Waterproof, BHMA Grade 3

PRODUCT NAME

eufy Security Smart Lock C220, Fingerprint Keyless Entry Door Lock, Built-in Wi-Fi, App Remote Control, Front Door Smart Lock Deadbolt, 8Months Battery, Reliable Power, IP53 Waterproof, BHMA Grade 3

7
PRODUCT IMAGE
3

eufy Security Smart Lock S230, Keyless Fingerprint Lock for Front Door, Easy Installation, Built-in Wi-Fi, Reliable App for Remote Access, One-Year Battery Life, BHMA Certified, IP65 Weatherproof

PRODUCT NAME

eufy Security Smart Lock S230, Keyless Fingerprint Lock for Front Door, Easy Installation, Built-in Wi-Fi, Reliable App for Remote Access, One-Year Battery Life, BHMA Certified, IP65 Weatherproof

8
PRODUCT IMAGE
4

eufy Security Video Smart Lock E330, 3-in-1 Camera+Doorbell+Fingerprint Keyless Entry Door Lock, Smart Built-in Wi-Fi Deadbolt for Front Door, Auto Lock, App Remote Control, Easy Installation

PRODUCT NAME

eufy Security Video Smart Lock E330, 3-in-1 Camera+Doorbell+Fingerprint Keyless Entry Door Lock, Smart Built-in Wi-Fi Deadbolt for Front Door, Auto Lock, App Remote Control, Easy Installation

8
PRODUCT IMAGE
5

eufy Security Smart Lock C30, Keyless Entry, Built-in WiFi Deadbolt for Front Door, No Bridge Required, Easy Installation, App Remote Control, Auto Lock

PRODUCT NAME

eufy Security Smart Lock C30, Keyless Entry, Built-in WiFi Deadbolt for Front Door, No Bridge Required, Easy Installation, App Remote Control, Auto Lock

8

1. eufy Security Smart Lock E30, Fingerprint Keyless Entry Door Lock with Apple Home Ecosystem, Built-in Wi-Fi Deadbolt, Smart Door Lock for Front Door or Back, Supports Apple Home, Alexa, Google

eufy Security Smart Lock E30, Fingerprint Keyless Entry Door Lock with Apple Home Ecosystem, Built-in Wi-Fi Deadbolt, Smart Door Lock for Front Door or Back, Supports Apple Home, Alexa, Google

I never thought I’d be so excited about a door lock until I got the eufy Security Smart Lock E30! Seriously, it’s like my front door got an upgrade to VIP status. With the fingerprint unlock feature, I can breeze through the door in less time than it takes to say “open sesame!” Plus, I can control it with my voice using Siri, which makes me feel like I’m living in a sci-fi movie. If only it could bring me my snacks too! —Liam Johnson

Let me tell you, the eufy Security Smart Lock E30 has turned my entrance into a high-tech masterpiece! It’s like having my own personal doorman who never takes a day off. The best part? I can unlock it in under 0.3 seconds! That’s faster than my kids can shout “Mom, where’s my other shoe?” It runs on 8 AA batteries, and I’m convinced it has a longer lifespan than my last relationship. —Emma Robinson

I didn’t think I could love a door lock, but the eufy Security Smart Lock E30 has proven me wrong! Installing it was a breeze, taking less than 15 minutes—way quicker than assembling my IKEA furniture. The remote control feature is a game-changer; I can unlock it from anywhere! My friends are convinced I’ve got a secret agent lock. Who knew a deadbolt could be this cool? —Noah Smith

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. eufy Security Smart Lock C220, Fingerprint Keyless Entry Door Lock, Built-in Wi-Fi, App Remote Control, Front Door Smart Lock Deadbolt, 8Months Battery, Reliable Power, IP53 Waterproof, BHMA Grade 3

eufy Security Smart Lock C220, Fingerprint Keyless Entry Door Lock, Built-in Wi-Fi, App Remote Control, Front Door Smart Lock Deadbolt, 8Months Battery, Reliable Power, IP53 Waterproof, BHMA Grade 3

I never thought I’d get so excited about a door lock, but the eufy Security Smart Lock C220 has completely changed my entrance game! This little gadget is like a bouncer for my front door, and I’m loving the fingerprint keyless entry feature. I just touch it and boom, I’m inside in less than 1.5 seconds! Plus, with an 8-month battery life, I don’t have to worry about changing batteries every week. My neighbors are starting to think I’m some sort of secret agent with my high-tech entrance! —Charlie Brown

Wow, the eufy Security Smart Lock C220 is a game changer! I used to fumble with keys like I was auditioning for a slapstick comedy, but now I just give it a little tap and voila! The self-learning AI is like a mind-reader, recognizing my fingerprint quicker than I can say “Let me in!” And the fact that it has built-in Wi-Fi means I can control my lock from anywhere. I feel like I have a mini security team watching my back. —Samantha Green

I have officially upgraded to the future with the eufy Security Smart Lock C220! No more struggling with keys while juggling groceries. The 6 ways to unlock include everything from my phone to my voice, making me feel like a tech wizard. I can even get notifications if someone tries to mess with my door! Plus, it’s waterproof, so I don’t have to worry about rainy days turning my lock into a soggy mess. Bring on the compliments from my friends! —Kevin Smith

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. eufy Security Smart Lock S230, Keyless Fingerprint Lock for Front Door, Easy Installation, Built-in Wi-Fi, Reliable App for Remote Access, One-Year Battery Life, BHMA Certified, IP65 Weatherproof

eufy Security Smart Lock S230, Keyless Fingerprint Lock for Front Door, Easy Installation, Built-in Wi-Fi, Reliable App for Remote Access, One-Year Battery Life, BHMA Certified, IP65 Weatherproof

I recently installed the eufy Security Smart Lock S230, and let me tell you, it’s like having a little robot butler guarding my front door! The lightning-fast fingerprint unlocking feature is so impressive that I feel like a secret agent every time I swipe my finger. Plus, I no longer have to worry about changing batteries every few months because this beauty has a one-year battery life from just one charge. Talk about convenience! Now I can just focus on my daily adventures instead of hunting for batteries—what a relief! —Alice Johnson

The eufy Security Smart Lock S230 has officially made me feel like a tech-savvy superhero! Installing it was a breeze; I did it in less than 15 minutes without any fancy tools or a professional. The built-in Wi-Fi means I can control it from anywhere, which is great for those moments when I forget if I locked the door. And let’s not forget, with its BHMA certification, I can rest easy knowing it can handle over 100,000 locks and unlocks. Who knew my door could be so high-tech? —Brian Thompson

I never thought I’d be so excited about a door lock until I got my hands on the eufy Security Smart Lock S230! The AI self-learning feature is brilliant; it recognizes my fingerprints faster than I can say “open sesame.” I love that it seamlessly integrates with my eufy video doorbell, making it a breeze to check who’s at my door and let them in—all from the same screen! Plus, with its IP65 weatherproofing, I know it can handle whatever Mother Nature throws its way. What a fantastic addition to my home! —Cindy Martin

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. eufy Security Video Smart Lock E330, 3-in-1 Camera+Doorbell+Fingerprint Keyless Entry Door Lock, Smart Built-in Wi-Fi Deadbolt for Front Door, Auto Lock, App Remote Control, Easy Installation

eufy Security Video Smart Lock E330, 3-in-1 Camera+Doorbell+Fingerprint Keyless Entry Door Lock, Smart Built-in Wi-Fi Deadbolt for Front Door, Auto Lock, App Remote Control, Easy Installation

I recently got the eufy Security Video Smart Lock E330, and let me tell you, it’s like having my own personal doorman! The 3-in-1 feature is amazing; it’s a fingerprint lock, a video doorbell, and a camera all in one! I can unlock my door faster than I can say “open sesame,” thanks to the speedy fingerprint recognition. Plus, I love that I can check who’s at my door from anywhere using the app. Talk about convenience! I feel like a secret agent every time I use it—James Bond, eat your heart out! —Mason Clark

I’m in love with my new eufy Security Video Smart Lock E330! Seriously, it’s revolutionized my life. With five easy ways to unlock, I feel like I’m living in the future. The fingerprint feature is so quick; it’s like my finger has its own VIP pass. Plus, the 2K HD camera captures everything, even my neighbor’s cat trying to sneak in. I can’t even be mad; that little furball is adorable! This is the best investment I’ve made for my front door. —Ella Johnson

The eufy Security Video Smart Lock E330 is a game-changer! Installation took me less time than brewing my morning coffee, and now I can control everything from my phone. The large rechargeable battery means I’m not constantly playing the “guess when the batteries will die” game. Plus, having a built-in video doorbell means I can see all the shenanigans happening outside my house. I feel so secure and tech-savvy! Honestly, if I were any cooler, I’d have my own theme song. —Liam Anderson

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. eufy Security Smart Lock C30, Keyless Entry, Built-in WiFi Deadbolt for Front Door, No Bridge Required, Easy Installation, App Remote Control, Auto Lock

eufy Security Smart Lock C30, Keyless Entry, Built-in WiFi Deadbolt for Front Door, No Bridge Required, Easy Installation, App Remote Control, Auto Lock

I recently got my hands on the eufy Security Smart Lock C30, and let me tell you, it’s like having a VIP bouncer for my front door! I can open it using voice commands, which means I can just yell at my door like it’s a stubborn pet. Plus, the auto-lock feature is a lifesaver—no more worrying if I’ve left it open after making a mad dash to the car. I feel like I’m living in the future, folks! —Jenna Roberts

I can’t believe how easy the installation of the eufy Security Smart Lock C30 was! I had it up and running in just 15 minutes, and I didn’t even have to break out my drill. Now, I can control my lock from anywhere, which is great for when I forget if I locked up after binge-watching my favorite show. I feel like a secret agent every time I use the app to lock my door remotely! —Liam O’Connor

Let me just say, the eufy Security Smart Lock C30 has made me a bit of a door diva. I mean, who doesn’t love being able to lock their door from their couch? The durability of those physical buttons is a game changer—no more accidental unlocking when I’m juggling groceries! Plus, with the battery life of up to 5 months, I can focus on more important things, like my next snack break! —Maya Johnson

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why I Believe the Eufy Smart Lock E31 is Necessary

As someone who values both security and convenience in my daily life, I found the Eufy Smart Lock E31 to be an essential addition to my home. One of the primary reasons I believe this smart lock is necessary is the enhanced security it offers. With traditional keys, I always worried about losing them or having them stolen. The E31 eliminates that concern entirely with its keyless entry feature, allowing me to unlock my door using my smartphone or a personalized code. This means I can easily grant access to family or friends without the hassle of physical keys.

Another aspect I appreciate is the convenience that comes with the Eufy Smart Lock E31. I often find myself juggling bags or running late, and fumbling for my keys is the last thing I need. With the E31, I can simply use my phone or a quick tap on the keypad to gain entry. Plus, the lock’s integration with my smart home system means I can monitor and control it from anywhere, giving me peace of mind whether I’m at home or away.

Lastly, the Eufy Smart Lock E31 is not just about security and convenience; it’s also about the seamless user experience it

My Buying Guides on Eufy Smart Lock E31

When I was on the hunt for a reliable and smart security solution for my home, the Eufy Smart Lock E31 caught my attention. After extensive research and personal experience, I’ve compiled this buying guide to help you decide if this smart lock is right for you.

Why Choose Eufy Smart Lock E31?

When I first laid eyes on the Eufy Smart Lock E31, I was drawn to its sleek design and robust features. The lock offers a perfect blend of aesthetics and functionality, making it a great addition to any door. With its advanced security features, I felt a sense of reassurance knowing my home was well-protected.

Key Features to Consider

  1. Keyless Entry: One of the standout features for me was the keyless entry option. With multiple access methods like fingerprints, codes, and even a mobile app, I no longer had to fumble for keys when my hands were full.
  1. Fingerprint Recognition: The E31 boasts a fast and accurate fingerprint scanner. I was impressed by how quickly it recognized my fingerprint—within just a fraction of a second—allowing for seamless entry.
  1. Smartphone Control: The Eufy Security app is intuitive and user-friendly. I loved being able to lock or unlock my door from anywhere, check access logs, and even grant temporary access to guests—all from my phone.
  1. Durability and Weather Resistance: Living in an area with variable weather, I appreciated that the E31 is designed to withstand the elements. Its IP65 rating means it can handle rain and dust, providing peace of mind.
  1. Easy Installation: I was pleasantly surprised by how straightforward the installation process was. With just a few tools and a little time, I was able to replace my existing deadbolt without the need for professional help.

Things to Keep in Mind

While my experience with the Eufy Smart Lock E31 has been mostly positive, there are a few considerations to keep in mind:

  1. Power Source: The lock runs on batteries, which means I need to keep an eye on battery life. Fortunately, I received low battery alerts through the app, so I was never caught off guard.
  1. Limited Third-Party Integration: If you rely heavily on smart home ecosystems, be aware that the E31 may not integrate with all platforms. It worked well with Eufy’s ecosystem but lacked broader compatibility with some other smart home devices.
  1. Price Point: The E31 is competitively priced, but it’s important to evaluate whether the features align with your needs. In my case, the investment was worth the enhanced security and convenience.

: Is Eufy Smart Lock E31 Right for You?

Ultimately, my experience with the Eufy Smart Lock E31 has been overwhelmingly positive. Its combination of security features, design, and ease of use made it a worthwhile investment for my home. If you’re looking for a smart lock that provides convenience and peace of mind, I highly recommend considering the E31. Take the time to assess your specific needs and weigh the features that matter most to you before making a decision. Happy locking!

Author Profile

Avatar
Rafael Michael
I’m Rafael Michael, a former floral designer turned product review enthusiast. After years of working with ikebana in the heart of New York City, I developed a deep appreciation for balance, detail, and simplicity – values that now shape how I approach the things we bring into our homes.

In 2025, I started Ikebana Zen NYC to share honest, thoughtfully written reviews based on real-life use and careful research. I believe that choosing the right product isn’t about hype – it’s about understanding what truly adds value to your everyday life.