Harfo Smart Door Lock, Heavy Duty 5 in 1 Keyless Entry Door Lock, Full App Control Digital Keypad Lock, Reversible Handle with Fingerprints and Passcodes for Family/Office/Apartment (Aged Bronze)

This lock is great. It has lots of features and everything works well.Installation was simple. A template for hole is provided for hole cutouts if you are installing it on a new door.I bought it for my bedroom door, and the main requirement was that it have a good fingerprint reader, so that I could get in quickly without needing a key or to punch in a code. The reader works very well and very fast, I'd say less than half a second to open. One thing I love about it is that the reader is angled at roughly a 45 degree angle, which makes putting a finger on it (I typically use my thumb) more comfortable than most fingerprint locks, which have vertical fingerprint readers. That may seem like a little thing, but it just feels like a more natural and ergonomic position.You can set up numerical codes (I think between 4 and 10 digits), and they can be permanent, one time use, or time-based. So, for example, you can set up a code that works from 4pm on Friday until noon on Sunday, so it's perfect for an AirBnB, houseguest, maid, etc. The code entry also worked flawlessly.Three keycards are included. You just put the keycard up against the keypad and the lock opens instantly. Honestly, I don't really foresee using them - as great as they work, I'll just use the fingerprint reader and avoid having to take anything out of my pocket.The backup keys provided in case of power failure (i.e., dead batteries) work fine. One minor nitpick is that the keyhole is hidden behind the face of the front handle, accessed by pushing on one end of the handle. It works fine, but my question is, will I remember 5 years from now (or whenever) how to access the keyhole?The TTLock app is really good too. That was a bit surprising to me, since a lot of apps for these kinds of things seem like afterthoughts. This one is intuitive and easy to use.If you have the gateway for the lock (purchased separately), it connects to the internet though your WiFi, and then you can even open the lock remotely. That's a feature I'm not planning to purchase, but I can see how it could come in handy for some people.There are a couple of features that I had not read about that I like. One is that the time that the door stays unlocked after being opened is very customizable (default is 5 seconds) through the app. Another is that you can set a daily period of time during which the door will stay unlocked, and then lock automatically. So, for example, you could leave it unlocked at night so that if the kids get scared, they can come in without them having to knock and you having to go open the door.The 4 AA batteries are easily installed. You need to remove one screw to access the batteries.A couple of minor niggles: I got the lock in aged bronze, which looks great, but the latch bolt and strike plate are both silver - would be nice if they were also aged bronze to match. Also, one thing I could do without is the voice saying "unlocked" when the door is unlocked and "locked" when it automatically locks again. You can control the volume of the voice by a setting in the app, but can't turn it off entirely. I think it's unnecessary, as there is a light that briefly turns green when the lock unlocks, and you can hear the it unlock and lock, so to me the voice confirmation isn't needed.But overall, this is as perfect an electronic lock as I've found. I can't vouch for its durability, since I've only recently installed it, but I'm very happy with this purchase, and I'm thinking about buying one for my garage.

I couldn't be happier with my VV Smart Lock! Installation was straightforward, and the design is sleek and modern, fits perfectly with my door. The app integration is smooth, and I love being able to lock and unlock from anywhere. The fingerprint recognition is fast and accurate, and temporary codes for guests are a huge bonus. Battery life is impressive too. This smart lock gives me peace of mind and convenience all in one. Highly recommend to anyone upgrading their home security!

After my 24 hours of use, I am updating this post from 1 to 4 stars.It looks beautiful, n took 20 minutes to intall. VERY easy, perfect fit in standard US door. I even lost a screw & they give a spare bag so that's a nice touch!Spent an HOUR trying to get APP to work.. uggg.. "bad location" & "error failed", so be patient there.I learned the unit must be awake to communicate with door, except for APP lock & unlock.Subscription required to do things like add large numbers, remote use, etc at $65 for 2 years.Fingerprint is supper fast RFID a second or two, no bigs. APP gives you battery status, which is nice, but remote notifications requires a subscription. The ONY thing that's missing is an unlock mode where you can leave it unlocked for easy pass through without unlocking. Unloading groceries for example or in and out for a day... you can set a time, but no manual way to leave it open.. only via the APP. You CAN change pin codes after you add one they generate, use it once, then can change in the APP. The APP communication with the lock is sluggish but there's not much to do after it's setup, so not going to stress on that.

I bought and installed 3 of these locks back in July 2024 for an apartment building we purchased. My contractor misplaced the full programming instructions which caused us many problems. We were unable to program them. Once we found the instructions i was able to figure them out and love, love, love how sophisticated these locks are. I wrote -- and now corrected -- my unfairly critical review. I hope these locks last a long time as they are amazing - though not perfect. Programming them is not intuitive. You need to carefully read and follow the instructions. The instructions could also be clearer and customer service could not be found when we lost the instructions. (Someone contacted me after i wrote the bad Amazon review). I have yet to try to program the little electronic squares that came with the locks. But i was able to generate -- and then change -- the long (10 digit) permanent passcodes for all three and get them all set up to work on the app on my phone. You've got to accept and use the very long passcode generated once and then you can easily change it to something smaller and unique. I was also able to set up the fingerprint keypad on one of them (which is a crazy cool feature). I just touch the pad and the lock unlocks. But I had a problem with setting up the second one to read my fingerprint. Despite any shortcomings, I'm going to buy twelve or more of these locks to replace all of the locks in the place (it's an 8 plex). For the power of these locks the price is amazing. It's strange to be excited about a lock but these things are truly great (so far at least). Once you figure out how to program them (which, again is not that difficult in fact with proper instructions). One other suggestion: i have not yet found any way for the tenant/occupant to keep the lock unlocked; it always seems to lock automatically. There's probably a way to do this using the app (don't know yet) but there should be a button on the lock itself since the tenants will not have the app. Also, i dont know whether there is a way to copy the single, special key that came with each lock. Doubt it. Pretty certain that this key could never be copied by any regular locksmith so if you lost this one key you could be screwed. Now that I know how to program the locks however I'm not as concerned about this risk. Love these locks overall.