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From the brand
At eufy we believe all great smart home products need to be thoughtfully built from the start. From whole-home security to smart cleaning solutions, eufy’s technology brings you expert protection and deep cleaning that’s tailored to your lifestyle and creates human-first technology that enlivens the lives of everyone around you.
Because care is what makes a house a home, everything we build is built with care for you.
eufy, Built with Care
NVR Security System S4 Max
eufy Security Camera
eufy Smart Lock
eufy Video Doorbell
eufy Doorbell
eufy Baby & Mom
eufy Smart Lights
eufy Alarm System and Tracker
Palm Vein Unlocking: Advanced Security with 99.9% Accuracy. Achieve recognition in just 0.6 seconds with cutting-edge, forgery-proof palm vein recognition. This next-gen security feature relies on the unique vein patterns in your palm, ensuring top-tier protection. Plus, your palm vein data is stored securely on the device, keeping your privacy intact.
This all-in-one device: A 2K HD camera with an f/1.6 lens for sharp, clear visibility—even at night. A video doorbell with a 150° Head-to-Toe wide-angle view that eliminates blind spots, perfect for monitoring packages or checking on visitors. A smart lock with real-time visitor alerts. Whether it’s ensuring your family’s safety or giving peace of mind when older people or children are home alone, the FamiLock S3 Max keeps you connected and reassured.
The Rear Lock Video Screen: The Rear Lock Video Screen allows you to effortlessly check the front door status anytime, without needing a smartphone app. Its simple, intuitive design makes it ideal for the elderly and children, offering a quick and hassle-free way to see who’s at the door. Perfect for households seeking an easy-to-use, app-free solution for monitoring the front entrance.
Dual Power Supply System: Stay powered with a rechargeable battery offering up to 4 months of full functionality, plus an emergency set of 4 AAA batteries for an extra month of essential functionality in case of power outages.
Seamless Home Automation with Matter & Apple Home: Easily integrate with the eufy Ecosystem & HomeBase 3 for advanced AI security features. Supports Matter for smooth, secure connections with Apple Home, Google Home, Alexa, and SmartThings—giving you a privacy-first, future-ready smart home experience. [Note: Camera streams are not supported via Matter due to current limitations. For full features and the best experience, please use the eufy App.] Matter is now compatible with HomeBase 3 for simultaneous use. This video lock is not compatible with HomeBase 2.
Nallely –
Super high tech and handy
Just installed the Eufy FamiLock S3 Max, and wow—this thing is like a smart lock on steroids. It works great. Waving my hand over it to unlock (thanks to the palm vein reader) feels like something out of a sci-fi movie—and once you get used to it, it’s pretty smooth. It functions like a video doorbell, smart lock, and a traditional key lock. The camera and tiny display inside let me see who’s at the door without even having to grab my phone. Installation was easier than I expected , and the lock feels solid and secure. The dual battery system rechargeable plus AAA backups is clever. I’m really enjoying it so far.
Mama Bear –
So Handy
While I do admit that it is sometimes a little finicky reading your palm, that’s usually error on my part (trying too hard to manipulate my hand or holding it too close). Aside that, this door lock is amazing. I love having the option to use codes as well as palm prints, and being able to set up multiple family members. It’s great for having people come to your home to care for pets, etc as well because you can assign codes that are person-specific, and make them one time use or remove them at any time. The camera is triggered when someone uses the lock, but it also logs the user’s name associated with that code/palm. You can also check and make sure you locked your door from the app, and remotely lock and unlock. My front door window is hard to see through, so I also really like having the option to press a button to look outside, especially for my daughter. It’s also been helpful to be able to look for packages without opening the door unnecessarily and then having to keep a dog or toddler inside.
An Explorer –
UPDATE: Turned out GREAT! You *CAN* duplicate keys and it offers so much smarts!
This product turned out to be ***really impressive**** and great!It’s a unique marvel of multiple products in one device: smart lock with keypad, palm reading, physical key, connected doorbell, digital peephole AND security camera with AI.If you struggle to record your hands, I have a suggestion. See video (uploaded low res for privacy). Start with your fingers on the sensor at the same angle of the palm reader (top of device) and slowly raise your hand while keeping the same angle vs the reader. At some point it will register/recognize it. This process became super simple for the whole family to register all hands. At the location it recognizes the palm you can then make a mark on the door frame with a pencil to help you remember the exact location and angle to use next time. Simple and easy.Also, I read information on the product page, and some reviews likely repeating the page info, that you cannot duplicate the keys “for security reasons”. ***BUT*** it turns out you can copy the keys as I did at the local hardware store, nothing different to other keys out there. This may seem like an issue but for us it was crucial to have the reassurance that we can each have a physical key to open the lock in an emergency if the battery or motor fails (it hasn’t). So yes you can easily copy the keys (they include 2 with the device).The smart notifications detecting people at the door and recordings you can watch from anywhere and the autolock, state update and temporal passwords are already worth the price.On my first review, I was distressed that it required calling customer support to get the round faceplate to install on the door and that the customer support was not easy to reach. However customer support did reach out and did all they could to help me get the round faceplates quickly. Kudos to the eufy team!I encourage eufy to improve the product and communication in a number ow ways to make it even more awesome:Have better information on keys being able to be duplicated if needed, nothing to fear as every other similar lock out there will let you do that and this is an asset that could turn customers away fearing only 2 keys are included. Also, try to include all the right hardware in the box to avoid the issue of extra calls. Finally better support training to resolve and escalate things quickly.Overall, a great impressive product and team and I look forward to keeping using this device and learning more about the ways Eufy innovates in this space.
Tyler B. –
Worth the buy
I don’t have a metta base, and have installed this with a storm door. I’m sure I’m losing some functionality, but this works perfect for what I was wanting to do with my home.Lock is perfect, battery life seems long, not complicated to remove it to charge. Palm recognition is sometimes complicate, but all my family members seem to get it.I plan to come up with the solution around the storm door, as I live in MO and it’s nice to have open breezes in the house when it’s cooler.
Amazon Customer –
It’s not perfect. The Palm reader can be slow at times, and it does not have open door detection. But I’m still going to give it 5 stars because it was simple to install, has a good battery life, and at its core works well. The pin takes seconds or we can unlock it as we pull up to the house from the app.
Amazon Customer –
This is a great lock. Easy to install and set up. It seems to work very well. Recognizes our family palms and not others that I’ve tested with.I like the auto lock after a certain amount of time and you can define a time frame to do this so throughout the day you are not constantly unlocking the door.It only uses the key it came with. Would be nice if it can be rekeyed to match the other house doors. I have not tried to get spare keys made yet so not sure that is an option.The button that covers the key hole and emergency power plug keeps falling open. This is also the doorbell button so it tends to be used regularly and just does not fit tight after you open it. DON’T OPEN IT IF YOU DONT HAVE TO! LOL
Joe A. –
So far I’m very impressed and it’s a very good product. The App was easy to setup . I had a bit of a problem with the key unlocking door but I think I got it sorted out.I haven’t set up the the palm entry yet, but soonI love the fact that it comes with a rechargeable battery and has a backup as well.I highly recommend this Lock.
Kristen –
Very disappointed in this lock. We had high hopes but it gives nothing but problems when anyone that doesn’t want to use their palm with a code tries to use it. It constantly gets stuck in “rain mode” despite being on a covered porch and never getting wet. It’s gotten to the point where anyone that has a code needs to wait for us to remotely let them in. We have contacted eufy support but it’s been slow and the last response was a week ago. We had very high hopes for this but unfortunately we can’t recommend it
Sam St. Jules –
Works really really well super easy to use I love you it’s better than the fingerprint