Electronic Fingerprint Smart Lock with Handle, Digital Passcode/Code Keypad, Keyless Entry, Bluetooth App, Remote Unlock, RFID Key Fob, Auto Lock, Knob for Front Door, Home, Apartment, Bedroom, Rental
The Sifely S is a budget-focused smart lock offering multiple entry methods including biometric and PIN access. It relies on local Bluetooth connectivity by default, requiring a separate gateway for remote smart home integration.
Research review based on an Amazon listing, recorded specifications and captured buyer ratings. Review record from Nov 8, 2026; price, rating and availability last checked Nov 9, 2026. It does not verify every maker claim. Not a hands-on test — see how we review.
Price
$66.29
Checked Nov 9, 2026
Amazon rating
4.3
★★★★★4.3
Ratings
9,314
Best for Budget-conscious interior door security
This is a generic, low-cost solution best suited for interior doors or rentals where advanced automation is not required. It relies on Bluetooth and proprietary apps, posing significant longevity and security questions.
Price, rating and availability as read from the listing on Nov 9, 2026; Amazon can change them at any time. We earn a commission on qualifying purchases.
Our scorecard
Research-based assessment
8.0out of 10
Overall
Build quality7.5
Zinc alloy chassis provides basic durability with an IP65 ingress rating.
Smart integration6.0
Lacks native Wi-Fi, Matter, or Thread; requires gateway for remote functions.
Local control9.0
Core features operate locally via Bluetooth, maintaining functionality without active internet.
Installation8.5
Standard form factor simplifies retrofitting into existing 2-1/8-inch door bores.
Value8.8
High feature-to-price ratio for property managers and budget-conscious users.
The full review
Design and Build
The Sifely S utilizes a zinc alloy construction with a reversible lever handle, ensuring compatibility with both left- and right-handed door configurations. The unit is rated IP65, meaning it offers sufficient protection against dust and water jets, suitable for many exterior applications. Installation is designed for standard US door thicknesses ranging from 1-3/8 to 2-1/4 inches. The lock accommodates standard backsets of 2-3/8 or 2-3/4 inches, though users must confirm their existing bore hole diameter is 2-1/8 inches before purchase. The hardware includes a physical key override, which is essential given the lock's reliance on four AA batteries. An integrated micro-USB port allows for temporary emergency power if the battery level reaches critical depletion while the user is locked out. The physical profile is standard for a residential handle set, aiming for a discreet installation that blends into modern or traditional door aesthetics.
Real-world Performance
Functionality is centered around five access methods: fingerprint biometric recognition, digital PIN, Bluetooth application control, RFID key fobs, and the physical backup key. Fingerprint authentication offers convenient daily entry, while the app facilitates user management and audit logs for homeowners. Because the Sifely S uses local Bluetooth communication, the lock maintains primary functions—such as unlocking the door—without a cloud connection or persistent internet service. This ensures the lock remains operational during network outages. However, remote features like internet-based unlocking, real-time access notifications, and voice assistant integration through Alexa or Google Home necessitate the purchase of a separate Sifely Wi-Fi Gateway. Without this bridge, the Sifely app can only manage the lock within Bluetooth range. Users should note that the system does not support Matter or Thread, limiting its role in broader, vendor-neutral smart home automation ecosystems.
Value for Money
Priced at $66.29, the Sifely S occupies an aggressive price point for an electronic lock equipped with biometrics. The cost includes the hardware necessary for local entry management, making it a viable option for rental properties where owners prefer avoiding recurring subscription fees for access control. By including features like one-time entry codes and time-limited access, the lock provides basic property management capabilities out of the box. While the lack of built-in Wi-Fi may seem like a limitation, it removes the overhead of maintaining a constant cloud-connected device, which can be a point of failure. Buyers seeking to add remote capabilities later can purchase the gateway separately, allowing for incremental investment. Given the one-year warranty and the robust set of local features provided at this price, the unit represents a practical, low-cost entry point for automated door security.
Who Should Skip It
This device is not suitable for users who require native smart home ecosystem integration, such as Apple HomeKit, Matter, or Thread support. Those who prioritize advanced automation or a seamless, unified smart home experience will find the Sifely S too restrictive due to its dependence on a proprietary, secondary gateway for cloud features. Furthermore, individuals living in regions with extreme temperature fluctuations should verify the operating temperature limits with the manufacturer, as battery performance can degrade significantly in harsh climates. If your security needs involve advanced alarm system integration or if you require a lock that handles sophisticated guest access scheduling via cloud-based platforms, you should consider higher-end alternatives. Finally, those who prefer not to manage the logistical requirement of replacing physical batteries should look for hardwired commercial lock sets, as this model depends entirely on periodic battery maintenance.
Specifications
Recorded from the listing
Included Components
Mounting Plate, Rubber Gasket, Face Plate, Back Plate, Bolt Assembly, 2X Keys, 2X Key Cards
Recommended Uses For Product
Front Door, Home Entry, Bedroom, Office, Apartment, Airbnb, Vacation Rental, Rental Property, Guest Room, Garage Entry, Family Access, Property Management
Number of Pieces
16
Model Number
Sifely S
Model Name
Sifely S
Number of Packs
1
Item Type Name
Smart Lock
Lock Type
Deadbolt
Brand Name
Sifely
Manufacturer Warranty Description
One Year Product Warranty
Number of Items
1
Manufacturer
Sifely
Unit Count
1 Count
Manufacturer Part Number
Sifely Smart Lock
What to confirm for this exact model
Potential fit
Budget-conscious interior door security. Confirm that the model and included equipment meet your intended use.
Trade-off to resolve
Lacks modern smart home integration Check whether this matters for your setup before ordering.
Included equipment and compatibility
Check the exact variant, quantity, dimensions, required accessories and any applicable power or connection requirements. A missing specification is unknown, not proof that a feature is absent.
Ownership and purchase terms
Verify seller, delivered price, return conditions and manufacturer warranty for your location. Check replacement parts and ongoing costs where applicable.
What the maker claims
—5 Ways to Unlock Choose fingerprint recognition, digital keypad PIN code, Bluetooth app, compatible RFID key fob, or backup mechanical key. A versatile electronic keyless entry door lock with handle for daily home access.
—Fingerprint Entry for Families Register fingerprints for trusted household members and unlock without typing a passcode or carrying keys. Convenient biometric access for kids, parents, and other authorized users.
—Custom Passcodes and Anti-Peeping Create permanent, timed, one-time, or recurring entry codes for family and guests. The digital keypad supports anti-peeping PIN entry to help protect your code when others are nearby.
—Rental Property and Guest Access Share time-limited codes with visitors, cleaners, or rental guests without making spare keys. A flexible smart door lock for compatible homes, apartments, bedrooms, and rental properties.
—Bluetooth App and Access History Lock or unlock with the Sifely app within Bluetooth range, manage users and eKeys, and sync entry records. Standard Model S uses local Bluetooth and does not have built-in Wi-Fi.
—Optional Wi-Fi and Voice Control Add a compatible Sifely Wi-Fi Gateway (sold separately) for remote locking, access records, notifications, and supported Alexa or Google Assistant features; remote internet control requires the gateway.
—Auto Lock, Passage and Privacy Modes Set automatic relocking for daily use, enable Passage Mode when frequent entry is needed, or use Privacy Mode to restrict code access. Adapt the electronic smart lock to different household routines.
—Reversible Handle and Durable Build This zinc alloy smart lock has a reversible lever handle for compatible left- or right-handed doors. Upgrade eligible traditional knob or lever locksets; IP65-rated protection adds durability.
—DIY Install and Door Compatibility Designed for compatible US doors 1-3/8 to 2-1/4 inches thick, with a 2-1/8-inch bore and 2-3/8- or 2-3/4-inch backset. Check dimensions before replacing an existing door knob or handle.
—AA Battery Power and Backup Entry Operates on four AA batteries (not included), with low-battery alerts and a physical backup key. A micro-USB emergency power port provides temporary power if the batteries run down.
Where it ranks
Same-type shortlists
Positions among smart home devices listings whose titles confirm the same product type, ordered by editorial score and then buyer rating. Budget positions use the recorded price ($66.29), which can change.
Alternatives are selected by recorded product-type relevance and price proximity. Confirm exact purpose and compatibility; a shared category does not guarantee interchangeability.
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Electronic Fingerprint Smart Lock with Handle, Digital (this one)
A dash means the value was not recorded, not that a feature is absent. Prices and ratings are captured snapshots; editorial scores are research assessments rather than measured performance.
Common questions
Does this lock require a Wi-Fi connection?
No. The lock operates locally via Bluetooth. You only need the optional Sifely Wi-Fi Gateway if you require remote access, push notifications, or voice assistant connectivity. Without the gateway, all management functions are performed locally while you are in range of the lock.
Does the Sifely S support Matter or Thread?
No. The Sifely S does not currently support Matter or Thread connectivity protocols. It is a closed system that relies on the proprietary Sifely app for Bluetooth-based management. Users looking for cross-ecosystem smart home compatibility should consider alternative products that explicitly list Matter or HomeKit support.
What happens if the batteries die completely?
The lock provides low-battery alerts. If the batteries fail, you can use the included physical backup keys to unlock the door manually. Alternatively, you can connect a portable power bank to the micro-USB port on the bottom of the lock to provide temporary power for electronic access.
Is there a subscription fee for the app?
No. The Sifely app is provided without a mandatory subscription for standard features. Basic management of users, entry logs, and temporary access codes is handled locally. Verify if any premium features are offered by the manufacturer, but the core security functions do not require ongoing monthly payments.
How we judge smart home devices
Rule 01
Check Matter compatibility and whether Thread requires a border router; ecosystem support and local-control features vary by device.
Rule 02
Prefer local control; cloud-only devices die with their service.
Rule 03
Read the subscription terms before buying any camera.
Sources and limits
This page summarizes our research reviews of Amazon listings, listed specifications and captured buyer ratings. It is not a hands-on test. Scores are editorial assessments, not measured performance; prices are recorded snapshots and may change. A category can include both main products and accessories, so its overall price range is not the cost of a complete setup.
Most recent product record update: November 8, 2026. Individual records may be older; this is not a verification date for every claim. Prices on this page were read from the listings Nov 9, 2026.
