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Smart Door Knob Fingerprint Door Lock 4-in-1 Keyless Entry (Fingerprint/App/Code/Key) with Auto-Lock Easy Install for Home/Bedroom/Office-Silver
Evanshow

Smart Door Knob Fingerprint Door Lock 4-in-1 Keyless Entry (Fingerprint/App/Code/Key) with Auto-Lock Easy Install for Home/Bedroom/Office-Silver

4.2(226 reviews, all variants)
Amazon's Choicebudget$0-$49200+ bought in past month
#4,532 in Tools & Home Improvement#30 in Door Knobs
smart
Smart
material
Zinc
lock type
Deadbolt Lock
special feature
Auto-Lock, Fingerprint, Passcode Unlock

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AI Verdict

A 4-in-1 smart door knob with fingerprint, app, code, and key entry, featuring local data storage and auto-lock, designed for budget-conscious home or office use.

Situational Fit

This smart door knob offers a compelling feature set for its budget price point, including multiple entry methods and local data storage. However, the lack of specified battery life and limited app functionality (Bluetooth-only without a gateway) make it a situational fit for those prioritizing cost and basic smart access over advanced remote features or long-term battery performance. The future availability date means real-world performance is unconfirmed.

If you need true remote access and broader smart home integration, look for models explicitly stating Wi-Fi connectivity or compatibility with major smart home platforms like Alexa or Google Home.

Regret Score™

Medium Risk

Lower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity

40/100
vs. 376 Security we've analyzedSafer than 35%
Hidden Defects
16/35

Issues discovered after purchase

Achilles' Heel
3/25

Critically weak dimension

Expectation Gap
8/20

Amazon rating vs actual quality

Fit Risk
13/20

Chance this product isn't for you

BuyChoice Score
2.8

Pros

  • Unlocks via fingerprint (99% recognition rate), Tuya app, anti-peeping keypad, or 2 emergency keys, offering four access methods.
  • Stores up to 100 fingerprints/codes/cards, accommodating multiple users.
  • Biometric data is stored 100% offline on an encrypted chip, preventing cloud vulnerabilities.
  • Auto-locks 5 seconds after closing and includes a silent mode for quiet operation.
  • Provides 0.5-second fingerprint recognition for quick entry.
  • Installs without drilling or wiring, fitting 1.18"-1.97" thick wooden doors, with video tutorials and tools included.

Cons

  • Tuya app control requires Bluetooth proximity to the lock, limiting remote management.
  • Emergency power is via a C-port, implying batteries are the primary power source and need monitoring.
  • Material is Zinc, which may not offer the same perceived durability as higher-end alloys.
  • Lacks integration with broader smart home ecosystems beyond the Tuya app.

Dimension Scores

Detection Accuracy8/10

The product claims a 99% fingerprint recognition rate and 0.5-second access, which, if accurate, is above average for budget smart locks.

Connectivity & Range4/10

Connectivity is limited to Bluetooth for app control, meaning remote access beyond local range is not natively supported without an unspecified gateway.

App & Integration5/10

It uses the Tuya app, which is a common smart home platform, but specific integrations with other ecosystems are not mentioned, making it average in terms of broader smart home compatibility.

Build & Weather Resistance5/10

Constructed from Zinc, which is a common material for door hardware, but no specific weather resistance ratings are provided, placing it at category average without further details.

Best For

  • Bedrooms or home offices needing keyless entry with multiple user access.
  • Families with children or elderly members who benefit from fingerprint access.
  • Rentals or shared spaces requiring easy code management and offline data security.
  • Anyone seeking a budget-friendly smart door knob for wooden doors 1.18"-1.97" thick.

Not Recommended For

  • Users requiring remote Wi-Fi control without Bluetooth range.
  • Exterior doors in harsh weather conditions, as weather resistance specifics are not detailed.
  • High-security applications where a dedicated deadbolt mechanism is preferred over a knob-style lock.
  • Smart home enthusiasts looking for broad ecosystem compatibility beyond Tuya.

Watch Out For

  • The product's 'Date First Available' is November 15, 2025, meaning there are no actual user reviews or complaints available yet to assess real-world performance or durability.
  • App control is limited to Bluetooth range; true remote access (e.g., from outside the home) would likely require an additional Wi-Fi gateway, which is not included or specified.
  • Battery life is not specified, which is a common concern for smart locks, potentially leading to unexpected lockouts if not regularly checked.
  • While it has a C-port for emergency power, this requires carrying a power bank or cable, which might be inconvenient if batteries die unexpectedly.

Full Specifications

ASINB0G2GQZNF4
SizeFingerprint door lock
BrandEvanshow
ColorQ1-Silver with App
StyleFingerprint
MaterialZinc
Lock TypeDeadbolt Lock
Item DepthLess than 1.18 inches
Unit Count1.0 Count
Item Weight1.9 pounds
Part NumberQ1TY
Manufacturerevanshow
Exterior FinishSilver
Number of Items1
Special FeatureAuto-Lock, Fingerprint, Passcode Unlock
Hand OrientationAmbidextrous
Number Of Pieces1
Special FeaturesAuto-Lock, Fingerprint, Passcode Unlock
Item model numberQ1TY
Product Dimensions1 x 1 x 1 inches
Batteries Required?No
Included Componentslock
Handle Attachment Mechanismsnap fit

What Buyers Say

Since this product has a 'Date First Available' of November 15, 2025, there are no actual user reviews or complaints available yet. Based on the specifications, this Evanshow smart door knob aims to offer a budget-friendly keyless entry solution with multiple access methods and a focus on local data security. It appears to be a straightforward replacement for a standard door knob, emphasizing ease of installation. Potential users might expect quick fingerprint recognition and the convenience of app and code access, but should be aware of the Bluetooth-only app control for remote functions.

“Man, I really want a smart lock that just works, but with no reviews yet and that future release date, I'm kinda nervous about being the first to try it out, especially if the batteries die fast.”

Common Praise

  • Potential for quick 0.5-second fingerprint recognition.
  • Four distinct unlocking methods (fingerprint, app, code, key) offer flexibility.
  • Local, encrypted storage of biometric data addresses privacy concerns.
  • Easy, no-drilling installation is a significant convenience.
  • Ability to store up to 100 unique fingerprints or codes for multiple users.

Common Complaints

  • Lack of true remote Wi-Fi access for app control without an additional gateway.
  • Unspecified battery life could lead to unexpected power depletion.
  • Material (Zinc) might not feel as robust as higher-end options.
  • No specific weather resistance rating, potentially limiting outdoor use.
  • Limited smart home ecosystem integration beyond the Tuya app.

Ownership Tips

  • Specific ownership notes are unavailable due to the product's future availability date.
  • Potential users would likely discover the actual battery longevity with daily use.
  • Real-world fingerprint recognition consistency across different users and conditions would be an important discovery.
  • The practical range and responsiveness of the Bluetooth app connection would become clear over time.
  • Durability of the zinc material and finish under regular handling would be observed after extended use.

Frequently Asked Questions

Does this lock require a Wi-Fi connection to function?

No, the lock operates via Bluetooth for app control and does not require a constant Wi-Fi connection. However, remote access from outside Bluetooth range would typically require a separate Wi-Fi gateway, which is not included or specified.

How many fingerprints can this door knob store?

The lock can store up to 100 fingerprints, codes, or cards, making it suitable for multiple users in a home or office setting.

What happens if the batteries die?

If the batteries run low, you can use the included emergency keys for entry. Additionally, there's a C-port for emergency power, allowing you to temporarily power the lock with a portable power bank.

Is the fingerprint data stored securely?

Yes, your biometric data is stored 100% offline on an encrypted chip within the door handle itself, which means it's not vulnerable to cloud-based hacking attempts.

Can this lock be installed on any door?

It's designed for wooden doors with a thickness between 1.18" and 1.97" and supports both left and right swing doors. It's an easy installation without drilling or wiring.

Buying Guide

When you're looking at smart door knobs, you need to think about how you actually want to get into your house. Do you just want a code, or do you want to use your finger? Also, consider if you need to unlock it when you're not home, because that usually means a Wi-Fi connection, which not all budget locks have built-in. Installation should be easy, but always double-check your door's thickness.

4-in-1 Keyless Entry

Local Data Storage

Auto-Lock

Door Thickness Compatibility

Alternatives

If this lock doesn't fit your needs, look for models with integrated Wi-Fi for remote access, higher-grade materials for increased durability, or specific weather resistance ratings for outdoor applications.

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