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Sifely S Smart Lock Review

The Sifely S is a smart door lock designed for keyless home entry, combining fingerprint access, keypad entry, app control and physical backup options. It stands out for easy installation and flexible access management for families and rental properties. Its main drawback is mixed long-term reliability, especially around fingerprint consistency and some reported lock failures.
Expert reviewed
76
Overall score
Data-driven scoring Expert reviewed Updated analysis

Why we ranked it highly

The Sifely S is a smart deadbolt-style door lock aimed at households that want to reduce dependence on physical keys. It supports several ways to unlock, including fingerprint, passcode, app control, key cards, FOB access and traditional keys, which gives it a broad day-to-day use case for family homes, apartments and managed properties. The product is also positioned toward Airbnb hosts and rental managers through temporary code creation and access logging. In practical terms, this is a home security and smart access product rather than a full security system. Its appeal comes from flexible entry options, straightforward DIY installation on many standard doors and optional smart home support through a separate WiFi Gateway. Reviews suggest setup is simple for many buyers, but they also point to some reliability concerns and uneven fingerprint performance that potential buyers should weigh carefully.
90-day review Expert reviewed User feedback Data scoring

Key specs

Item details

Brand Name
Sifely
Recommended Uses For Product
Front Door, Home Entry, Kids Access, Elderly & Family Use, Airbnb Guest Access, Rental Property Management, Office Door Control, Apartment & Vacation Rental
Number of Pieces
16
Included Components
Mounting Plate, Rubber Gasket, Face Plate, Back Plate, Bolt Assembly, 2X Keys, 2X Key Cards
Model Number
Sifely S
UPC
748528493019 767501154556
Model Name
Sifely S
Global Trade Identification Number
00748528493019
Manufacturer
Sifely
Unit Count
1 Pack
Manufacturer Part Number
Sifely Smart Lock
Item Type Name
Smart Lock

Features & Specs

Additional Features
Weather Resistant, Fingerprint, Fob Unlock, Passcode Unlock, Auto-Lock, One-Touch Lock, Touchscreen, Anti-Peeping Password, Back-Lit Keypad
Lock Type
Deadbolt
Controller Type
Remote Control
Control Method
App, Remote, Touch, Voice
Connectivity Protocol
Bluetooth, Wi-Fi
Smart Home Compatibility
Smart Home Compatible

Style

Style Name
Fingerprint
Color
Silver
Shape
Oval

Materials & Care

Material Type
Zinc
Finish Types
Satin Nickel

Measurements

Item Dimensions
7 x 3 x 1.12 inches
Item Weight
3.6 Pounds

Scores breakdown

82 /100

Performance

88 /100

Features

77 /100

Safety

78 /100

Comfort

86 /100

Ease of use

84 /100

Space efficiency

62 /100

Noise

80 /100

Design

Strengths

  • Multiple entry methods including fingerprint, keypad, app, key cards, FOB support and physical keys.
  • Generally easy DIY installation on standard doors with reversible handle design.
  • Useful for family access, guest codes, Airbnb use and rental management.
  • App-based user management and access records add practical day-to-day control.
  • Auto-lock, one-touch lock and anti-peeping password improve everyday convenience.
  • Strong buyer feedback on setup simplicity, programming and overall usability.

Limitations

  • Fingerprint performance is mixed, with some users reporting inconsistent recognition.
  • Remote unlocking and Alexa or Google support require the optional WiFi Gateway.
  • Reliability feedback is mixed, including reports of locks stopping working completely.
  • Door compatibility should be checked carefully, as some doors may need extra drilling or modification.
  • Some users reported a lock state issue where access was accepted but the door still would not open.
  • Privacy-conscious buyers may prefer to avoid added cloud-connected gateway features.

Ideal user profiles

  • Families who want keyless access for children, parents or older relatives.
  • Airbnb hosts and rental property managers who need temporary access codes.
  • Homeowners replacing a standard lock with a more flexible entry system.
  • Users who want app control and access logs without a complex smart home setup.

Use cases

  • Managing front door access for family members without spare keys.
  • Creating temporary codes for guests, cleaners, pet sitters or contractors.
  • Adding keyless entry to an Airbnb or short-term rental property.
  • Using fingerprint entry when arriving with bags or groceries.
  • Checking access records through the app for shared home entry points.
  • Auto-locking the door after entry to reduce missed lockups.

Fit and positioning

Who this works for

Category positioning

The Sifely S sits in the smart lock category as a home entry and access control device. Its main role is to make front door access more flexible by replacing or reducing the need for spare keys, while also adding app-based management and temporary code sharing. In a household routine, that makes it more about convenience and controlled entry than full-scale security monitoring. It is especially relevant for family homes, apartments and short-term rental setups where different users need different access methods.

Best for

This lock is best suited to households that want several convenient ways to unlock a front door without making installation overly complicated. Families with children, older relatives or frequent visitors may benefit from the fingerprint reader, keypad and app-based user control. It also fits Airbnb and rental use reasonably well, especially for owners who are willing to add the optional gateway for wider remote management.

Not best for

It may be less suitable for buyers who want fully dependable fingerprint access as their main unlock method, since reviews are mixed on scanner consistency. It is also not the strongest fit for anyone expecting remote access and Alexa or Google support straight out of the box, because those features rely on an added gateway. Buyers with non-standard doors should also check fitment carefully before ordering.

Home use

For everyday home use, the Sifely S is built around reducing the friction of getting in and out of the house. It can help families avoid spare key handoffs, make it easier to let in trusted visitors and lower the chance of leaving the door unlocked thanks to auto-lock support. The mix of fingerprint, keypad, app and physical key access gives it practical flexibility for busy entry points.

Performance analysis

How it performs in practice

Each scoring dimension is separated into a compact card so the strengths and tradeoffs are easier to compare without reading one long block.

Performance analysis

The Sifely S appears to perform well when judged by its core purpose: giving users flexible keyless entry at the front door. Reviews regularly praise the range of unlock methods, simple access management and the convenience of fingerprint or keypad access when carrying bags or hosting guests. Auto-lock also adds practical day-to-day usefulness. Performance is less consistent when looking specifically at fingerprint recognition and lock response under all conditions, as some buyers report scanner inconsistency or cases where the lock accepted an input but did not open properly. Overall, it looks capable and convenient, but not completely free of real-world performance concerns.

Feature analysis

The feature set is one of the stronger parts of this lock. It offers fingerprint entry, keypad access, app control, FOB and card support, physical keys, auto-lock, one-touch locking, anti-peeping password input and a back-lit keypad. Access logs and code management widen its usefulness for rentals and shared households. The main limitation is that remote access and voice assistant support depend on a separate gateway rather than being included as standard.

Safety

From a household safety perspective, the most relevant points are secure locking behaviour and reliable operation. Auto-lock and one-touch locking can help reduce accidental unlocked doors, and physical keys provide an important fallback if electronic access is unavailable. At the same time, reports of accepted credentials without successful opening raise practical concerns, especially in urgent entry situations. The lock is also weather resistant according to the provided data, but buyers should still focus on proper installation and door compatibility to reduce avoidable access problems.

Comfort

In household comfort terms, the lock adds convenience more than physical comfort. Not needing to carry keys, being able to use fingerprints when hands are full and relying on auto-lock can make daily entry smoother for families and shared homes. This is especially useful for children, older relatives or frequent visitors. The main comfort trade-off is that scanner inconsistency for some users may reduce that convenience in practice.

How it compares

Within its category, the Sifely S appears stronger than many basic smart locks on access flexibility and setup simplicity. The combination of fingerprint entry, keypad, app management, cards and physical key backup gives it a broader everyday use case than simpler keypad-only options. It also compares well on value and family or rental practicality. Where it looks less convincing is long-term confidence: compared with stronger premium smart lock profiles, it shows more mixed feedback on reliability and connected functionality, especially because some headline remote features depend on extra hardware. It is therefore more compelling as a practical convenience upgrade than as a top-tier, high-confidence smart security choice.

Ranking summary

The Sifely S ranks as a strong mid-to-upper option in the smart lock category because it combines a broad feature set with straightforward installation and practical everyday usefulness. It is especially appealing for families, rentals and shared-entry households that want more flexibility than a standard keypad lock. Its position is held back by mixed reliability and fingerprint consistency, along with the fact that some of its more attractive connected features require an extra gateway purchase. In ranking terms, it stands out more for convenience, access options and value than for absolute dependability, which keeps it competitive but not among the most reassuring choices for risk-averse buyers.

Buying advice

Consider the Sifely S if you want a relatively affordable smart lock with several entry methods, straightforward DIY setup and practical access management for family members, guests or short-term rentals. It makes the most sense for standard doors and for buyers who value convenience over deep smart home integration. Avoid it if you need highly dependable fingerprint performance as your main entry method or if you want full remote control and voice support without extra purchases. Before buying, check your door compatibility carefully, decide whether the optional gateway is necessary for your setup and make sure you are comfortable relying on backup entry methods if fingerprint or lock behaviour becomes inconsistent.
76
Overall score

Final verdict

The Sifely S is a strong everyday smart lock option for buyers who want flexible keyless entry, easy setup and useful access management without paying far more for a premium model. Its main strength is convenience: multiple unlock methods, simple app control and good suitability for families and rental use. Its main limitation is confidence in consistency, with mixed reports around fingerprint performance and overall reliability. Taken as a whole, it is a capable and good-value smart lock for many homes, but it is best bought by users who understand the optional gateway requirement and are comfortable keeping backup access methods in regular use.
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Key topics

sifely smart door lock review, fingerprint smart lock with keypad, sifely s smart lock, smart lock for airbnb, keyless entry door lock, bluetooth smart lock, alexa compatible smart lock, google compatible door lock, rental property smart lock, front door fingerprint lock

Frequently asked questions

Is the Sifely S smart lock good for Airbnb and rental properties?
It appears well suited to Airbnb and rental use because it supports app-based code creation, access records and multiple unlock methods. That said, remote management away from the property depends on the optional WiFi Gateway, so hosts should include that extra cost when planning a setup.
Is the Sifely S easy to install?
Buyer feedback is largely positive on installation, and the lock is designed for DIY fitting on most standard doors without extra drilling. Some reviews do mention compatibility issues on certain doors, including cases where extra cutting or drilling was needed, so measuring first is important.
How reliable is the fingerprint reader on the Sifely S?
The fingerprint reader gets mixed feedback. Some owners say it is quick and convenient for daily entry, while others report inconsistent performance or cases where fingerprints do not work properly. It looks useful as a primary method for some users, but backup entry options are important.
Does the Sifely S work with Alexa and Google Assistant?
Yes, but the voice control features depend on the separate Sifely WiFi Gateway. Without that add-on, the lock mainly works over Bluetooth when you are near the door. Buyers expecting full remote smart home use should factor in the gateway from the start.
Can you control the Sifely S remotely when away from home?
Remote unlocking and broader remote management require the optional WiFi Gateway. On its own, the lock uses Bluetooth for nearby control and setup. This makes a difference for rental hosts, second homes and anyone who wants to let someone in while not at the property.
What are the main drawbacks of the Sifely S smart lock?
The main concerns are mixed reliability, inconsistent fingerprint performance for some users and the need to buy an extra gateway for remote and voice features. A few reviews also raise concerns about certain door compatibility issues and isolated cases where the lock accepted entry but failed to open.
Is the Sifely S good value for money?
It offers a broad set of access methods and smart lock convenience at a relatively accessible price, which helps its value case. However, the total cost can rise if you need the WiFi Gateway for remote access or smart assistant support, so value depends on how much of the feature set you plan to use.
Is the Sifely S suitable for families?
Yes, the feature set is clearly family-oriented. Fingerprint, keypad, key card and app access can reduce the need for physical keys, and reviews highlight convenience for children, older relatives and busy households. Still, families should keep backup methods ready because fingerprint performance is not equally consistent for everyone.

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