Sifely O Fingerprint Keypad Smart Deadbolt

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Product guide

Sifely O Fingerprint Keypad Smart Deadbolt

The Sifely O smart deadbolt offers fingerprint, keypad, app, key fob, and mechanical-key access, with automatic locking and scheduled access codes. Remote app management and voice assistant control require a separately sold Wi-Fi Gateway, so Bluetooth app use and gateway-enabled features should not be conflated.

At a glance

Five listed entry methods: fingerprint, keypad passcode, app, key fob, and mechanical key.
The listing claims support for over 100 fingerprints and over 100 access codes.
App features include code creation, electronic key sharing, access logs, and scheduled permissions.
Auto-lock, one-touch locking, Privacy Mode, Passage Mode, anti-peep passcodes, and low-battery alerts are listed.
Remote management and Alexa or Google Assistant compatibility require the optional Sifely Wi-Fi Gateway.

Price

$67.99Save 24%

Reference price: ~~$89.99~~

Price checked: Nov 14, 2026

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Often bought together

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Pros and cons

Pros

Multiple unlocking methods include both biometric access and a mechanical-key backup.
Access codes and scheduled permissions can support household, guest, or tenant access management.
The listing describes DIY installation with a screwdriver on compatible standard doors and support for left- or right-handed configurations.

Cons

Remote app management and listed voice-assistant control depend on a separately sold Wi-Fi Gateway.

Technical specifications

8 specifications

Identity
Brand	Sifely
Model	Sifely O

Connectivity and controls
Wireless connection listed	Bluetooth, Wi-Fi
Control methods listed	App, Remote, Touch, Voice

Dimensions and installation
Form factor	Oval
Dimensions listed	6.3 x 2.6 x 1.9 inches
Weight listed	2 pounds

Materials and protection
Material listed	Zinc

What to know before buying

Remote management and Alexa or Google Assistant control require the optional Wi-Fi Gateway. The listing also describes Bluetooth app control, so confirm which app functions work without the gateway and check that the door meets the stated compatibility requirements.

What’s in the box

Included

Front plate
Back plate
Mounting plate
Screw package
User manual

Who is it for?

A good fit for

Households wanting fingerprint and passcode entry alongside a mechanical-key backup.
Hosts or property managers who need to create and schedule access codes, provided they account for the separately sold gateway for remote management.
Buyers seeking a keypad deadbolt with auto-lock and configurable passage or privacy modes.

Less suited to

Buyers who require remote management or voice control without purchasing a separate Wi-Fi Gateway.
Anyone who needs fingerprint recognition to be a guaranteed, consistently reliable sole entry method, given the mixed customer feedback.

Sifely O Fingerprint Keypad Smart Deadbolt · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 850 ratings

5 stars68%68%
4 stars14%14%
3 stars6%6%
2 stars4%4%
1 star8%8%

Customer feedback highlights perceived build quality, straightforward installation, appearance, and day-to-day convenience, including appreciation for multiple entry methods. Fingerprint recognition and connectivity receive mixed reports, with some describing reliable recognition and others finding it finicky. This matters if fingerprint access is your main entry method. The listing also makes clear that remote management requires an optional Wi-Fi Gateway, which is relevant to reports about needing Wi-Fi for fuller functionality.

Positive themes

Customers report good quality, easy installation with clear instructions, appealing appearance, and convenience from multiple entry methods.

Mixed feedback

Fingerprint recognition is described as consistent by some customers and finicky by others.
Connectivity experiences differ. Customer feedback notes that Wi-Fi is essential for full functionality, while the listing specifies that remote management requires the optional Wi-Fi Gateway.

Frequently asked questions

Can the Sifely O be managed remotely without extra equipment?

No. The listing says remote management requires the separately sold Sifely Wi-Fi Gateway. Confirm which app functions are available over Bluetooth alone.

What ways can the lock be opened?

The listing names fingerprint, keypad passcode, smartphone app, key fob, and backup mechanical key access.

Does the lock support automatic locking?

Yes. Auto-lock and one-touch locking are listed, along with Privacy Mode and Passage Mode.

Is a Wi-Fi Gateway included?

It is described as optional and sold separately for remote management and compatible Alexa or Google Assistant control.