








🔐 Upgrade your front door to the future of smart security—because your home deserves the best.
The Sifely Model O Deadbolt is a weather-resistant, biometric smart lock combining fingerprint, keypad, and app control for versatile keyless entry. Designed for easy installation on any door, it supports over 100 user codes and fingerprints, offers advanced security features like auto-lock and anti-peep password, and integrates with Alexa and Google Assistant for seamless smart home connectivity.







| Brand | Sifely |
| Special Feature | Weather Resistant, Fingerprint, Fob Unlock, Passcode Unlock, Auto-Lock, One-Touch Lock, Touchscreen, Anti-Peeping Password, Back-Lit Keypad |
| Lock Type | Biometric, Combination Lock, Deadbolt, Keypad |
| Item dimensions L x W x H | 6.3 x 2.6 x 1.9 inches |
| Material | Aluminum, Zinc |
| Recommended Uses For Product | Front Door, Home, Apartment, Office, Rental Property, Airbnb / Short-Term Rental, Bedroom, Garage Entry |
| Style | Fingerprint |
| Color | Black |
| Number of Pieces | 14 |
| Included Components | Front Panel, Back Panel, Mounting Plate, Manuals, Installation Screws, 2 Keys, 2 Cards |
| Controller Type | Amazon Alexa, Android, Google Assistant, iOS, iPadOS, Touch, Hand Control |
| Item Weight | 2 Pounds |
| Control Method | App, Remote, Touch, Voice |
| Connectivity Protocol | Bluetooth, Wi-Fi |
| Model Name | Sifely Model O Deadbolt |
| Manufacturer | Sifely |
| Item Weight | 2 pounds |
| Product Dimensions | 6.3 x 2.6 x 1.9 inches |
| Item model number | Sifely Model O Deadbolt |
| Size | Deadbolt |
| Special Features | Weather Resistant, Fingerprint, Fob Unlock, Passcode Unlock, Auto-Lock, One-Touch Lock, Touchscreen, Anti-Peeping Password, Back-Lit Keypad |
| Batteries Included? | No |
| Batteries Required? | Yes |
R**E
Fast, Secure, and Easy to Use Smart Lock
Super impressed with the Sifely Model O Smart Lock. Installation was quick with just a screwdriver, and the lock feels sturdy and well-made. The fingerprint reader works fast and accurately, the keypad is bright at night, and I love being able to send temporary codes to family or guests through the app. Auto-lock gives me peace of mind, and the design looks sleek on my door. Overall, a great mix of security and convenience—highly recommend!
P**S
Good and affordable lock
This is my second Sifely. I recently installed the Door Lock on my front door and have been very impressed with its functionality and value for the price. Here's a breakdown of my experience:**Pros:*Easy to install: The lock comes with clear instructions and minimal tools required, making it a great DIY option for most homeowners. No drilling is needed for the standard installation.*Multiple unlocking options: The 5-in-1 keyless entry is a great feature. I can unlock the door with my fingerprint, code, fob, smartphone app (with an additional gateway), or even a physical key for backup. This provides flexibility and convenience for different situations.*Affordable: Compared to other smart locks on the market, the Sifely offers a comparable feature set at a competitive price point.*Auto-lock function: I never have to worry about forgetting to lock the door, as the auto-lock function ensures it's secure after I close it.**Cons:*Remote access: If you want remote access features like locking/unlocking your door through your smartphone from afar, you'll need to purchase an additional gateway.*Fingerprint: sometimes I have to put my finger twice, since is not recognizing at the first attempt.**Overall:If you're looking for a budget-friendly smart lock with core functionalities, the Sifely is a great option to consider.
J**O
Great keypad deadbolt
Product is easy to install due to the detailed instructions and video clips.Pros: installation and initial setup; several options for unlockingCons: finger print reader has failed setup on numerous attempts; sound options controls both voice and keypad clicks. I would like to have the ability to hear the key clicks but not the door locking status messages being announced.I would definitely recommend the lock.Update: the finger print reader works perfectly. After reviewing the instructions, I did not follow the recommended steps which caused my initial issue with setup.
M**R
We Love the Functionality and Ease of Installation
This lock was a perfect solution for our new home. My husband installed it in less than thirty minutes and programming it after was half that. It looks wonderful and we really like the number of ways to access the functions through the app , keys, codes, fobs, and fingerprints.
K**A
Electronic Door Lock worth the price of Admission!
I like that the door latch is finger touch rather than push button. Very easy to install in an existing door frame ( we replaced our electronic push button lock that was failing due to repeated use)!I also like that the battery component can be opened from inside the house without uninstalling the whole inside mechanismThe instructions are easy to follow and with the interior fastening plate the lock is securely fastened to the door.The finger tip touch mechanism works great but the current instructions do not tell you how to set up on the App. You need to use the Guest mode found on the lower left of the app and add the finger prints. It functions very much like setting up finger tip security on some cell phonesWe were able to add multiple fingertip settings for family members and it works very well .The lock also comes with some key fobs that can be added to a key ring however they are so large that I would rather just carry a key.
S**E
Great Lock - Great Security!
So far, I’m very impressed with this lock! It was super easy to install and the setup through the app was easy as well! Very easy to add additional codes, set up finger print access and more! The app walks through the set up of these step by step!
A**R
Works Perfectly you would be disappointed
I highly recommend the Sifely deadbolt fingerprint door lock. I have a total of seven locks in my home only one deadbolt, it super simple to install and setup and works everytime. I had another Brand of fingerprint lock on my front door only because at the time Sifely did not offer a deadbolt. That lock locked me and my dog out three times. Finally I had enough and found Sifley had a deadbolt I couldn't order it fast enough. One thing I did not like was the deadbolt would extend while door was left open and an alarm would come on. I called Sifely and they told me I need a door sensor it still did not work, so I called them again. Sifely's customer service kept texting and emailing me until they reached me and instructed me on what to do to get the door working how I wanted it to work. Since then my dauther has bought 2 and my cousin bought 2. This is a super good lock and I highly recommend it to Everyone, no need for keys, and you can give people a timed code or just open the door while they are there and you are somewhere else, it sends you a message whenever someone goes in or out great lock and the customer service is excellent.
N**N
Good product and good sale price
Works well. Sometimes it takes a few tries to get a fingerprint recognized but that’s probably human error. It was a good price and my friend had no trouble installing
Trustpilot
3 weeks ago
2 months ago