Customer Ratings & Reviews

Good with latest technology and fine palm scanner.

Eufy FamiLock S3 Max is a 3-in-1 smart lock that features a video doorbell and palm scanner. This smart lock unlocks by scanning your palm veins. Eufy claims this technology works for anyone irrespective of their age or physical condition unlike a fingerprint scanner. The setup was easy, and the included quick start guide helps you with step-by-step instructions. The palm reader was easy to register too, and much better than the fingerprint capture. If you already have an Eufy lock, then the deadbolt works with this module. The package includes the interior and exterior smart lock module, assembly hardware, charging cable and the setup guide. The doorbell camera on the front of the module is a 2K HD camera that captures the entire picture with full angle viewing and clarity. The interior of the smart lock module has a 4-inch 1080p video screen that acts as a peephole with clear live footage. You can also use the Eufy app for live video intercom feature. This app also lets you customize additional settings like access codes, video captures, alerts, tracking areas, etc. The best part is there are no monthly fees to use any of these features. The smart lock is operated by the included 15,000 mAH rechargeable battery. A full charge of the battery is rated to last up to 5 months with full functionality. It takes 6 to 8 hours for the battery to be fully charged, and it needs to be taken out from the lock for recharging. But Eufy has included 4 AAA batteries as a backup, so the lock works even when you are charging the battery or during power outages. They provide up to a month of essential functionality. The only downside is the camera functions and palm scanner are disabled to save the AAA battery. In case of emergency, there is a physical key and USB C power interface on the front of the module behind the doorbell button. The video recordings are stored locally on the 16 GB included storage. I wish it was expandable. You can access these recordings via the Eufy app. If you are invested in the Eufy ecosystem, this smart lock is also compatible with HomeBase 3. This will also increase the local storage for the video recordings. The S3 Max seamlessly integrates with Apple Home, Google Home, Alexa, and SmartThings via Matter compatibility. Other features include auto locking when the door is closed, Wi-Fi 6 connectivity, all weather IP65 rating, ANSI/BHMA Grade 1 certification, EMP resistance. One thing to keep in mind, if you have a storm door for your entrance, this might not be the right smart lock for you as the storm door will probably block the camera. Overall, this is the latest all-in-one smart lock from Eufy that is solid and provides all the smart features without any subscription.

Palm works real good catches images very well. I love the product.

Easy to insgal and managing, some times the camera take some time to display what is recording

Great product so far, easy to setup, love the features and the palm recognition is really nice and accurate, I tried different people just to see if it actually works and it does.

I've gone through a lot of smart locks and this one is a winner. Only thing missing is AppleKey. With my doorbell off to one side this lock with a camera and doorbell work perfect for my needs with the camera point right down the approach to my front door.

I really wanted to love this lock—it’s convenient and works well overall. Unfortunately, it has one major drawback. Once installed, the interior door knob was so easy to turn that my dog, who had never opened a door before, was able to open it and run outside few times. I ended up having to return it for this reason.

This product is perfect for AirBnB. I can monitor who comes in and out, change passcode and best of all is the palm reading to gain access.

This is an amazing device, it has all you can need in one single device. Camera, doorlock and love the feature with the indoor screen

Its an good pruduct definatly feels new on development. but palm reader works good one thing is it doesn't work with home assistant yet so that is annoying eufy needs to get it up and running

Perfect and very Convenient. The palm reader works seamlessly!

This is an excellent product and was delivered on time with no issues.

The Eufy smart lock is a must have you want be disappointed

easy to install and provides peace of mind with ongoing monitoring

Great product, seamless palm readability with a convenient key hole.

I’ve owned a bunch of Eufy products from security cameras to doorbells to locks. The quality and innovation of Eufy smart products is second to none. I loved my fingerprint reading smart lock. I actually haven’t carried house keys in years. I have a Eufy lock on each exterior door on my house. When I heard about the Eufy FamiLock S3 Max with Palm Scanner I really wanted to get one. In the box you’ll find the inside panel, outside panel, battery, AAA batteries, a box of hardware, a Eufy security sticker, and a quickstart guide. My first impression was that the S3 was a solid piece of hardware and the battery is huge in comparison to my old lock. The battery is a 15,000mAH rechargeable battery which last 6 months on a charge. The quickstart guide directs you to get the app for setup and to a video for installation instructions. Having setup other Eufy locks previously I knew what I was doing but I used the step by step video anyway. I did find the video instructions somewhat annoying since you have to pause and start the video repeatedly to perform each step. I think a step by step instruction method like that used on other Eufy products would have been less frustrating. Installation was however a breeze. If you are upgrading from another Eufy lock the S3 slipped right in place using the prior locks door hardware and deadbolt so you can skip those steps just like I did. Basically you install the outside panel and run the cables through the door and connect to the inside panel. Secure the inside panel with screws and insert the battery and the backup AAA batteries and then your ready for setup within the Eufy app. The app setup was also a breeze. You simply select add device and follow the step by step instructions. Once added and connected to wifi you are prompted to add your palm. This was surprisingly a nearly instantaneous process. I added one hand and later added the other within the app after setup. I did sync the S3 Max with my HomeBase 3 for added storage and additional AI features and security. Once setup was complete there was a prompt to install a firmware update. This takes a few minutes and then you’re up and running. Of course my first inclination was to test the palm scanning unlocking capabilities. Wow, very impressive! Just hold up your open hand to the scanner and the door unlocks immediately. Make sure you add both hands so in the event that you’re carrying something you just use the opposite hand. Don’t forget the S3 isn’t just a lock. It performs triple duty as also a doorbell and as a 2K HD camera as well so it has you covered. The FamiLock S3 Max also has a screen on the inside panel which with the touch of a button shows you the view outside your door. I think this a great feature as a peephole function which allows you to see who is at the door prior to opening it or having to use the app to do the same. This is very convenient and a great added security feature. If you’ve never had a video doorbell you’ll love the ability to check your cam remotely and the motion notifications are fantastic for added security or just to know when the mailman comes or a package is delivered. If porch pirates are an issue in your area then the cam is a great deterrent too. They say the FamiLock S3 Max recognizes the unique vein pattern on your hand's palm in just .1 seconds with up to 99.99999% accuracy. From my experience so far this appears to be true. I’ve never had the door not recognize my palm scan and it activates instantly. This is definitely an improvement over my fingerprint reading smart lock which would often fail to read my fingerprint particularly if my hands were dirty or wet. The palm vein reading technology is not affected by dirty or wet hands or even skin conditions. The FamiLock S3 Max is a great product. Highly recommended.

It's very technological, and the fingerprint unlocking is very effective. But the camera quality is a bit poor

Dishonest pricing match policy. I had them price match this item with the same item on Amazon , backed up by the same item on the manufacturers website offering the same item for 100 less. They couldn’t match it… dishonest and deceptive price matching

eufy - FamiLock S3 Max Wi-Fi Replacement Deadbolt with 2K Video Doorbell and Palm Scanner Easy setup, however, no directions, and require use of the internet or prior install knowledge. We have (3) S230 Smart Locks with fingerprint reader, so the installation was quick, and setup was easy. We installed the S3 Max where a previous eufy deadbolt was installed, so we were able to use our existing deadbolt. There was no need to change it so the installation of the new eufy Familock S3 Max took approximately 5 minutes. We also have a eufy HomeBase S380 (HomeBase 3), the Familock S3 Max automatically added itself to the HomeBase S380. The HomeBase is not required to utilize the Familock S3 Max. You can connect the Familock S3 Max to your Wi-Fi and use the eufy app to control/operate your Familock S3 Max. To charge the main battery you will need a 5V / 2A power adapter and USB-C charging cable which is not supplied with the lock. Luckily, we already have one. If you have a storm door, the storm door will block much of the video availability. Installing the Familock S3 Max on the average door will show part of your door frame in the video, however, there does not appear to be a means to alleviate this. The Familock S3 Max is heavy duty and very well built. My only concern is the battery cover. The battery cover on our (2) S230 Smart Locks simply slip upward and off, so you have no resistance, and the battery cover works as well as the day we installed them. I’m concerned that the Familock S3 battery cover must be pried off, and with time this will wear on the battery cover. The (4) AAA batteries you install as a backup are a great feature. While charging the main battery, the backup batteries will keep the lock up and running, however, you can only use your PIN code access or key to lock/unlock, other functions are unavailable. Lots of neat features on Familock S3: From the interior of the door, you can press a button or turn the thumb turn to lock and unlock the Deadbolt. You can also press a button that turns on the 2K video, on the Familock S3, and view whom or what is on the outside of your door. This is a great feature and alternative to opening the door or attempting to see who’s at the door utilizing a peep hole. The camera will activate if someone presses the doorbell button on the lock. This gives you immediate video of who is at the door. From the exterior of the door, you can touch the to lock the deadbolt when you’re leaving or you can utilize your code or use the key. To unlock the Deadbolt you simply use, the Palm Vein reader located on the top of the lock, use the App, Voice Control, tap in your Password, or use the Keys. You cannot use the palm vein reader to lock the Familock S3 Deadbolt. Using the veins in your hand(s) to unlock your door is extremely quick and simple, yet secure. According to an article I read regarding palm veins, they are unique to each person, just like fingerprints, however, they remain stable over a person's lifetime. This makes palm vein patterns a reliable and secure biometric identifier. Apparently, even identical twins have different palm vein patterns. Palm vein recognition technology utilizes this uniqueness to verify identities, and it's considered a more secure method than other biometric identifiers like fingerprints, due to its resistance to forgery attempts. You can set locking priorities by utilizing the app. You can have the lock automatically lock, 5 seconds to 3 minutes after the door has been closed. You can also schedule a time for the lock to engage and disengage. Example: engage at a certain time in the evening and disengage at a certain time in the morning. Advantages and disadvantages, depending on your needs and door traffic. It would be more of an advantage to us if you could separate the engaging and disengaging time. We could set to automatically lock at a certain time in the evening, but we don’t necessarily want it to unlock in the morning. The 2K video is more than adequate for identifying who’s at your door, and again, you can press a button on the interior of the lock and view a video of who is on the outside, without having to use the eufy app. When attempting to set the “Screen Area Setting”, on the app, there seems to be a glitch, no matter where I move the box to adjust the display area of the screen, approximately ¼ of our video is consumed by door frame. I saved it, but it doesn’t change. I also don’t see any differences when changing the Screen Settings Display Mode between “Wide-Angle Mode” and “Full-Screen Mode”. You can integrate the eufy Familock S3 Max into your Alexa system/devices. We can ask our Alexa Show 10 to show us the door lock, and the door lock video is displayed on the Show 10. The ability to allow others to enter your home using the palm vein reader or a pass code beats having keys made and given out. We have found the palm reader to be a little stubborn at times. By utilizing the eufy app you can remove someone’s access at any time. The additional advantage is not having to keep up with keys that you have given to family, friends, or workers. You can remove someone’s access without worrying about getting a key back or having to worry about someone losing a key. For us, the eufy Familock S3 Max is a great addition to our home security.

I am writing this review for the eufy FamiLock S3 Max Deadbolt. The S3 Max Deadbolt comes with a built-in 2K video doorbell and palm scanner. This is one of the easiest reviews I have ever written. Why? Because this is absolutely one of the best, if not THE best product of its kind on the market, hands down. When I got home and picked up the package, I thought for sure I had received the wrong product. I mean, it was much heavier than I had imagined. So, I put everything else aside and opened up the box. To my surprise, it actually was the eufy S3. I was impressed by how well packaged the S3 came. The quality of the materials, the intuitive packaging…top notch all the way. As I familiarized myself with the contents, I noticed that the only instructions came in the form of a little folded Quick Start Guide. I looked it over and noticed there was a QR code to scan to access an online tutorial, and a rather short one at that. It all seemed so easy and simple. So I watched it a second time and felt confident enough to give it a shot. I was not prepared for the unbelievably easy and simple installation of the eufy S3! In a matter of about 10 minutes I had it completely installed. Not only installed, but ready to go, save for a few minutes connecting to wi-fi and setting up my eufy account. I don’t know that I have ever had such a non-stressful setup before. It was amazing! 10 minutes. As I was installing each component, I kept noticing just how well-built the S3 is. The materials, the design, the build…from top to bottom the S3 is pure quality. This is not some mass-produced-as-cheaply-as-possible piece of junk, this is a top-tier level product. And I became aware of why the box was so heavy when I picked it up. You won’t find even a trace of cheap plastic on the S3. I mean, everything about it is incredible. Back to the setup, I don’t know if I am just one of the fortunate, but my deadbolt hole was perfectly suited for the eufy right out of the box. The setup required no technical skills, no “bunch of tools,” and everything is designed to assemble without stress of any kind. Their research and development team really deserve a ton of kudos for making the installation fail-proof. Everything just went together so easily. The only tool I needed was a Phillips-head screwdriver. After installing, there is the usual connect-to-wi-fi, setting up an account, etc. And once that is all done, the eufy is ready to use. I wasn’t sure about the palm-scanner feature. To me it seemed a bit too good to be true, if you know what I mean. And way too futuristic. I honestly didn’t think it was going to perform well. I was wrong. To open the deadbolt, all you have to do is hold your palm a few inches away and almost immediately it unlocks. So to prove it’s trustworthiness, I had everyone try to open it with their palm. Worked perfectly. There is a very minor “learning curve” involved, as I needed to learn how to hold my palm so that the scanner could read it. The video doorbell feature is just as wonderful. Anytime someone rings the doorbell, I am immediately notified via the app notifications. Even if they just walk up on the porch. And this is where eufy deserves the most praise… they don’t require a subscription for the doorbell to send alerts and store photos! It’s free. The photos are high definition, and there is no trying to guess what you are seeing. The photos really are clear. Everything about the eufy FamiLock S3 Max Deadbolt/Video Doorbell is amazing. From the super high-resolution photos to the no-subscription-required to the top-notch palm scanner, this is top level! If you are really wanting to invest in an electronic deadbolt system with a video doorbell, please do yourself a favor and get the eufy FamiLock S3 Max Deadbolt!