






🔐 Unlock the future of smart security—because your door deserves the smartest welcome.
The Aqara Smart Lock U300 is a premium biometric and keypad smart lock featuring Apple Home Keys integration and Matter over Thread connectivity for seamless multi-platform smart home control. It supports up to 25 fingerprints, multiple unlocking methods, and customizable security modes, all housed in a durable, water-resistant zinc alloy body with AES encryption and up to 10 months of battery life. Designed for modern homes, it offers both convenience and robust security with emergency USB-C charging and broad ecosystem compatibility.



































| ASIN | B0D496H9YV |
| Additional Features | Fingerprint |
| Best Sellers Rank | #238,969 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #715 in Deadbolts |
| Brand | Aqara |
| Brand Name | Aqara |
| Color | Black |
| Connectivity Protocol | Thread |
| Control Method | App, Remote, Touch |
| Controller Type | Apple HomeKit |
| Customer Reviews | 3.6 out of 5 stars 368 Reviews |
| Finish Types | Painted |
| Included Components | Smart lock unit, Mounting hardware, USB-C cable (for backup power) |
| Item Dimensions | 5.51 x 2.99 x 2.8 inches |
| Item Weight | 2.5 kg |
| Item dimensions L x W x H | 5.51 x 2.99 x 2.8 inches |
| Lock Type | Biometric, Keypad |
| Manufacturer | Lumi United Technology Co., Ltd |
| Manufacturer Part Number | AD030USG02 |
| Material | Zinc |
| Material Type | Zinc |
| Model Name | Smart Lock U300 |
| Model Number | DL-D02D |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Recommended Uses For Product | doors |
| Shape | Oval |
| Special Feature | Fingerprint |
| Style Name | Contemporary |
| UPC | 192784001639 |
| Unit Count | 1 Count |
J**N
Just great. Really happy.
We got a bunch of U100 and U200 locks previously and Aqara lying to us! The batteries last a lot longer than they say! And I pass through our doors a lot more often than the average person. And yes, I'm in a cold climate in both Detroit where we lived and now in the mountains of West Virginia. For the house in WV I ordered six of these and installed one to date. Did so right at the beginning on the cold. When I installed the lock it was 70º, sunny and beautiful. By the time we left it was 24º and the lock was crusted over in a thick layer of ice. Get this! The lock read my thumb print through the nice - no problem! And the keypad also worked brilliantly. I've got to say Aqara, at least with their lock products, seems to have an "under promise and over deliver" policy and I love it! I don't like to mention competing products in reviews but I've got to say: I removed our top-of-the-line Level Lock Plus in favor of an Aqara lock. They're more responsive, less troublesome, and far more trustworthy as devices go. You get the sense from their marketing that Level is the top of the heap but they're not. If you're running an Apple Home these are the ones you want. Turn on Express Passage and your door unlocks the first time you raise your device to it - every time, though you'll never use the feature with these as the thumb print is so much more convenient. I don't work for them. I didn't receive a test product. I'm just a really, really impressed and extremely happy customer. Aqara did it again with the U300. It's about as perfect as lock as you could hope for if you're needing a smart knob-replacement lock that truly supports your chosen ecosystem. Go on and buy with confidence. These things are dope. ❤️💋 Regarding some of the issues reported by users here and in other places: 1) Communication issues are likely environmental in my experience. Make sure you have an AppleTV, HomePod, or HomePod mini within 30ft of your lock. Make sure there's no brick and very little plaster and lathe between your lock and your HomeKit or Aqara hub. 2) Apple Home, HomeKey and other issues: Just remember you don't actually need the Aqara App if you're using HomeKit. It's a good idea to use the app so the lock is associated with you through their app and your account, but the app itself has nothing at all to do with HomeKit. In fact, anything you do through HomeKit is written to the lock separately. They're two different worlds and Aqara was wise to keep them separate. 3) If you're thinking about a smart lock have a look at your door first. If your closure is weird or unreliable, if after your close your door you notice there's a lot of pressure on the knob latch, or if your door frame has simply relinquished "square", this or any other smart lock is likely going to be problematic. Manual locks on doors that require fidgeting to make work are generally fine because they're manual. But those same doors are likely to introduce problems as most smart locks are made for new doors, or at least doors that close and rest properly. Be sure to assess your door first, If it has problems get those addressed BEFORE trying to install any smart lock. A bad closure will see your locks fail, not last, batteries may die faster...
K**N
Not suitable for advertised outdoor use.
According to the Aqara website the U300 is: “Rated IPX4” and “is ideal for outdoor use, operating down to -22°F and in rainy conditions.” Well, yeah, not really. I love the lock and had waited for its release since Aqara first mentioned that it was under development last year. When it became available I ordered two. The features are terrific and it’s easy to install and set up plus the build quality feels nice and solid and the display is excellent even in full sunlight. Unfortunately, after only a few months I started to see the display face separating or delaminating around the edges and it’s only gotten worse as you can see in the photographs and no, this isn’t the plastic film used to protect the face during shipping, this is the actual glass plate itself. Both of the locks are showing this problem, one much worse than the other. Overall I love the lock but absolutely cannot recommend buying it at this time especially for outdoor use. Hopefully Aqara will correct this issue because the lock features are great but this faceplate is simply unacceptable. Update #1. After contacting Aqara customer support they requested some information on the local environmental conditions which I sent them. I have currently agreed to accepting two replacements but, given that both of my locks have delaminated, Aqara has only mentioned that they are investigating the problems not that they have solved it so I expect that these replacements will not be any better.This appears to be a fundamental engineering issue which Aqara will need to solve but will I update this review once I see how the replacements perform. Update #2. Aqara sent me two replacements but, unfortunately, both have delaminated again in the exact same manner as the first two. While it’s great that Aqara responded by replacing the original locks it hasn’t fixed the fundamental problem with the display face. As I said, it’s unfortunate as I really like the looks and function of the locks, but I simply cannot recommend them for use in exposed outdoor locations which is, of course, their fundamental purpose.
R**R
Does it’s job very well with home kit.
Very pleased just wish it would stay unlocked longer it’s an interior garage dood. Works great though with home kit. We. Have 9 exterior doors and 3 stories that’s a lot of stairs if you forget if you locked the door ah no longer
R**D
Fantastic Door Lock with horrible installation instructions that lead to potential issues
I consider it a miracle that I was able to successfully install this Aqara U300 lock on the first try. Others may not be so lucky. I am a bit of a novice when it comes to changing our door handles and locks. I have done it in the past with success but with the advent of smart locks, the process has become steadily more difficult. The problem here is that Aqara gives you a large handful of different-sized screws and tells you nothing about which ones to use at various points. Being a Chinese company, the included paper instructions are a mass of small text, no diagrams, and of little use. Using the installation video on the Aqara app or, in my case, YouTube, offered some help but gave no indication regarding the usage of included screws. Additionally, one is supposed to measure the edge of the door to the middle of the handle hole to determine the latch setting, but one needs to convert inches to metric to figure out the proper setting. The installation was a complete guessing game based on poor instructions. I had to guess which strike plate size to use (they are very similar). The video shows an additional inner strike plate install whose part is not included, so I skipped installing it. It took some testing to figure out which screws to use. In the end, it somehow came together. Then there was the connecting of the lock to Apple Home. Initial tries failed. Doing some Internet research, I found that you need to open the Apple Home app, add an accessory, and manually type in the matter code located on the side of the lock. Scanning the QR code does not work. Of course, why would Aqara not properly detail this? The entire installation process involved having to Google why this and that wasn't working and finding real-world users answering while confirming that Aqara's instructions were useless. All that aside, let me talk about the lock itself... This is a beautiful well-constructed lock. The quality is fantastic. It's very solid and it looks like a premium product. That being said, Aqara cut corners by adding plastic pieces that easily broke. For instance, one of the locking clips on the plate that goes over the lock (covering the battery) got damaged during installation. It was just flimsy. I have to contact Aqara to get a replacement, though the plate is still usable. The instructions poorly detail how to add a fingerprint to the lock. Once I found out all that could be done through the Aqara app, the process was simple. I have another matter door lock (Schlage Encode) in my home, and I was pleased that the passcode from that lock and its custom automation were automatically transferred to this Aqara lock through Apple Home during installation. The lock works wonderfully, I can walk up to the door and have it read my fingerprint to open. I can use a passcode. I can place my iPhone or Apple Watch directly against the keypad. All those methods unlock the door. However, here is the other huge issue... There is no way that you can disable the auto lock and keep your door unlocked during the day. That's a huge problem that to date, the company has not addressed. The door will lock every time it is closed. There is a "passage mode" that allegedly allows you to keep the door unlocked for a certain period, but research I did shows that users are complaining that it's cumbersome to use and that the door should have a simple setting to keep itself unlocked until programmed otherwise. I hate to give 3 stars to this lock. It's a 5-star lock, no doubt. I highly recommend it. However, the paper and video instructions are so poorly detailed that novices are going to have a tough time. Those who have more experience with these kinds of things will probably breeze through installation. There is also the issue of not being able to keep the door unlocked during the day. In the end, I would still recommend this door lock. I think its the best of its kind, but there are some serious issues that Aqara needs to address.
D**Y
Excellent Apple Home and Thread network integration. iPhone and Apple Watch compatibility.
What is not to like here? Physical installation was a breeze. I took out a U-tech lever lock, which never really worked through its bluetooth WIFI dongle for remote access. I didn't want to try a WI-FI lock from them because thread radios are lower power, which should be better for extending battery life. This lock can open remotely through Apple Home (remotely over cellular, hotel WI-FI, etc. if you are out of town). You do NOT need Aqara's M3 hub to make this work. Just an Apple TV, or some else to serve as a thread border router. This lock's thread node shows up in the Eve app: I have several Eve smart switches scattered around the house to build out my thread mesh radio network. Their app, as an additional feature, provides insight into thread device status.(Install an Eve switch or outlet just for this feature alone) This lock joined the thread network without a problem. The lock is heavy, substantial, and well-made as well. Keypad code entry and programming for guests is easy in both in Aqara's app, or Apple Home. Fingerprint programming is through the Aqara app. Both methods worked flawlessly. Same comment regarding opening the lock with an iPhone or Apple Watch. I am VERY particular about the home automation products I install. This lock, at least so far, has been flawless. I recommend it whole-heartedly.
B**I
Good Lock. Zero live Technical support. Poor App
I bought this lock mainly to be controlled by Apple Home kit's home key. The set up is convoluted. It took multiple attempts of resetting and researching on my own finally to add to my Apple home, but the Aqara app can't connect to my matter Apple TV. I tried multiple times but it won't pair HomeKit with Aqara through matter. There is no phone number to call for support. You have to send an email and wait days for an answer which basically was the same jargon if you googled the issue. So now I can control the lock with home kit and home key OR the Aqara app (but only if you're in bluetooth range). I guess they want you to buy their own Hub for an extra $150. Having said that the fingerprint reader is amazing and most of the time you don’t need the home key anyways. They should have a customer service person you can talk to. I will email them again and give it a couple of more days but if it doesn't connect properly, I may return it. I have a Schlage encode plus on another door, install and HomeKit setup was seamless and took literally 5 minutes with no issues.
R**N
Lasted 9 months
Worked for 9 months, then handle fell off, severing fingerprint scanner cord. I had to uninstall and dismantle to find the screws that had come loose (these were not installation screws, but internal screws that held the handle to the rest of the unit) and after an hour of reassembling and reinstalling, it functions but only via key or keypad — the fingerprint scanner no longer functions. I tried contacting the Aqara customer support but seems to be a black hole. Buyer beware!
W**B
Great lock for Apple Home
I've only had this a couple of weeks, so I can't speak to reliability or battery life. Physical installation was almost as easy as a basic door handle -- about as simple as something like this could be. Physical operation is smooth and solid. Initial configuration was slightly confusing at first since it is not initially obvious which steps (in Aqara app) require an Aqara bridge (which I do not have), but after initial setup in Aqara app (with first fingerprint, etc.) I added the device to Home app, and the Home Key appeared in the Wallet app automatically. Other home members were prompted to create a Home Key as well -- easy! Operation of the "Passage Mode" button on the inside is perfect. When you press the button a voice says "To enable Passage Mode, verify with fingerprint, NFC, or passcode" then if you do one of those it says "Passage Mode Enabled". Then when you press the button again to turn it off it says "Passage Mode disabled". What could be more clear than that!? I can add a a user (in Aqara app) and give them a passcode ahead-of-time, then can add a fingerprint to their User ID later (if desired). I can unlock the door from anywhere in the world using the Home app on my phone (since the lock is within range of my AppleTV, which is my home hub). Even without an Aqara hub this lock works great. Good job, Aqara!
A**Z
Todo perfecto
Todo ha sido perfecto: el envío, el producto y la entrega se ha realizado antes de lo previsto.
M**L
Excelente producto
Excelente calidad, funciona muy bien
K**M
You get what you pay for, so far it's a decent lock
I used to have different locks on Amazon which died after 6 months and I decided to go with more well-known brand. If you have any existing locks, it's very easy to install. I only use Fingerprint to unlock the door and so far, this is the smoothest lock that I ever had. Few downsides which don't reflect for me to degrade my rating. 1. For additional features, you absolutely need Aqara hub, or things that support matter over thread like Echo. If you have no hub, you cannot unlock from remotely and many missing features. I Will update my review when I get the hub. 2. Tha hassle part was setting up a connection via app. it seems like Canada is not an officially supported device so to find U300 on Aqara app, I had to switch to a different country. 3. It's only supporting with Aqara NFC tag. Even though I couldn't test more features as I'm only able to connect through Bluetooth, this is so far the best lock that I have and it's worth its price.
C**E
Funciona perfectamente
Funciona perfectamente, la instalación es fácil siguiendo las instrucciones además se puede usar Apple Homekey
V**C
mala compra por pésimo servicio post venta
tenía un cable suelto dentro del aparato y dejó de funcionar a las pocas semanas. el problema principal es que NO TIENE NINGUNA GARANTÏA. Ni el vendedor ni el fabricante se quisieron hacer cargo
Trustpilot
2 weeks ago
3 days ago