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1,850
4.2 out of 5 stars

S230 Keyless Fingerprint Smart Lock

$85.99
$199.99 57% off Reference Price
Condition: New
Color: Black
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Top positive review
9 people found this helpful
The smart lock that does it all!
By Amazon Customer on Reviewed in the United States on January 13, 2021
I started looking for smart door locks for our new place after getting tired of fumbling with different keys for the front and garage door locks. I could have gotten the locks rekeyed, but I decided to install smart locks on the two doors and get rid of keys altogether. After getting used to fingerprints to unlock and log into most apps on my phone, I just couldn't get myself to buy a smart lock without fingerprint support. The Eufy touch lock seemed to be one of few fingerprint smart locks out there backed by a well known brand, but it didn't come with wifi support. I heard the wifi version was coming, so I decided to wait a couple of months and finally took delivery of the updated locks last week. The locks are pretty easy to install, and come with good instructions and well labeled/organized parts. The locks took about 15 mins each to install. The app is also pretty easy to set up, and I can log into the app with fingerprints on my android phone. The one setup quirk I had to deal with is that selecting the "touch lock with wifi" when adding a new lock to the app didn't work. The QR code scan wasn't doing anything. I noticed that the product code on the lock was not 8520, but 8510, which is the same code as the non wifi Eufy touch lock, so I decided to add the non wifi touch lock to the app. This time, the QR code worked, and I was able to add the included wifi bridge separately and pair it with the lock. This should be good news for those of you who have the regular touch lock, as it indicates that you will be able to add Wifi support when/if Eufy starts selling the wifi bridge separately. I programmed each lock to unlock with three different fingerprints, and have been very happy with the responsiveness of the fingerprint scanner. It seems to be faster than the under screen fingerprint scanner on my Samsung Note 10+. The unlocking process with fingerprints is extremely quick and seamless. I also added my wife as a separate user, so she was also able to register her fingerprints with each lock. Each user also gets to select a 4 to 8 digit pin code (different code for each user). The app lets you customize a lot of things, including auto lock functionality (lock after duration, auto lock schedule with start/end time), wrong attempt timeouts, lock sounds, scramble pass code (add random numbers before and after your actual pin to hide it from prying eyes), etc. I've only had the locks for a few hours, but I have been very pleased with how well they work so far. The only minor annoyance is that one wifi bridge cannot connect to more than one lock, so if you have two locks like I do, you will have to have two wifi bridges operational. It would have been nice if the wifi bridges supported multiple locks, but it's not a deal breaker.
Top critical review
4 people found this helpful
Cannot recommend. Read the review before you choose to buy.
By TRK on Reviewed in the United States on August 3, 2025
Buyer beware. Buy these eufy locks for manual use or bluetooh use only. The Wi-fi in these locks constantly lose connection with your network and the phone app. The phone app constantly hangs for can't connect to the lock, though you may be able to lock and unlock it over wifi. When researching the Internet, this has been a known problem for years. The eufy support is responsive enough, however, they have no fix and there doesn't appear to be a fix in sight. Easy to install, and when it works it's great. It just doesn't work, for anybody, consistently for for very long. You will see the image I have attached, more than you will be able to use the locks over wifi. Two stars. One because it is very easy to install and one because the physical deadbolt works. If you're looking to use and control this over Wi-Fi, look elsewhere. **Update 8/6/25** Updating review to update rating from 2 to 3 stars as the eufy technical team continues to try to resolve the issues including releasing new firmware that has improved connectivity. I will continue to update the review based on the long-term effectiveness of the bug fixes. **Update 8/7/25** Firmware bug fix has be me up overnight. That has never happened before so I'm going from 3 to 4 stars. Excellent technical support response. Maybe it wasn't ready for Wi-Fi 7. But I'm happy to be able to now use wi-fi. If this remains stable for a few months, I'll happily edit one more time to give it 5 stars. **Final Update 8/8/25** Connectivity over Wi-Fi lost again. Yet the $7 Wi-Fi Lightbulb above the door has remained connecting and functional for over a year. I'm not going to factory reset and try again and wait for more fixes or upload more logs. I'm going to look for an alternative product. I cannot recommend and leave this with 1-star. Now I wonder if I'll be able to rely on eufy's security cameras.

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