Fingerprint Door Lock & Biometric Door Knob with App – 3-in-1 Keyless Entry Smart Door Lock with Auto-Lock & Interior Lockable, Secure Your Home, Office, Bedroom & Apartment Black
Want the best price and purchase timing?
Our AI advisor analyzes real-time pricing across all channels to find you the best deal.
AI Verdict
A 3-in-1 aluminum fingerprint door knob with 0.3s recognition and app control, best for single-door keyless entry.
This lock offers convenient fingerprint and app access for interior doors or apartments, especially for those who prioritize keyless entry and basic smart features. However, its reliance on a separate gateway for full remote control and voice assistant integration means it's not a complete smart home solution out of the box.
If you need integrated Wi-Fi, robust security certifications, or advanced smart home compatibility without extra hardware, look for locks explicitly stating these features.
Regret Score™
High RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- 0.3s fingerprint recognition for quick entry
- Stores up to 100 fingerprints, suitable for multiple users
- App-activated interior lockable mode adds a layer of privacy
- Emergency Type-C port for temporary power prevents lockout
- Auto-lock delay (1–3 min) ensures automatic securing
- Operates for up to 12 months on 4 AAA batteries
Cons
- Remote control and voice assistant integration require a separately sold gateway
- App functionality and reliability can be inconsistent across different smart lock brands
- Battery life can be shorter than advertised depending on usage frequency
- No explicit mention of weather resistance, potentially limiting outdoor use
- Installation can be challenging for some users, requiring careful alignment
Dimension Scores
The 0.3s recognition speed for fingerprints is faster than average for budget locks.
Remote control and voice assistant integration require a separate, optional gateway, limiting out-of-the-box smart connectivity.
It uses the Tuya Smart App for user management and access logs, which is a common smart home platform.
Constructed from aluminum, but lacks specific weather resistance ratings, making its outdoor durability uncertain.
Best For
- Interior doors in homes or offices needing keyless access
- Bedrooms or apartments where privacy and quick entry are priorities
- Users who want basic smart lock features without a complex smart home setup
- Rental properties needing temporary access codes or monitoring
Not Recommended For
- Front doors requiring robust security ratings (e.g., BHMA Grade 2)
- Users who need integrated Wi-Fi and remote control without an extra purchase
- Environments with extreme weather conditions due to unstated weather resistance
Watch Out For
- The full smart features like remote control and voice unlock require buying a separate Gavdhe gateway
- Battery life can be significantly shorter than the advertised 12 months if the lock is used frequently or if connectivity issues arise
- App connectivity can be unreliable, with users reporting issues with Wi-Fi and Bluetooth connections on similar smart locks
- Installation may require more than a screwdriver for some, and careful alignment is crucial for smooth operation
- The auto-lock feature, while convenient, can accidentally lock you out during installation if not properly configured
Full Specifications
| ASIN | B0FPCY9X6C |
| Brand | Gavdhe |
| Color | Black |
| Style | 3-in-1 fingerprint door knob with APP |
| Finish | Polished |
| Material | Aluminum |
| Batteries | 4 AAA batteries required. |
| Finish Type | Polished |
| Item Weight | 1.75 pounds |
| Part Number | GDA01 Square |
| Manufacturer | Gavdhe |
| Battery Cell Type | Alkaline |
| Item model number | GDA01 Square |
| Product Dimensions | 5.6"L x 2.75"W |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Included Components | Package Included：1-Front Knob,1-Rear Knob,1-Adjustable Latch,1-Strike Plate and Reinforcer .2-Keys&1-Pin .1-Spindle .2-Threaded Pillar .6-Screws,1-Type-C Cable ,1-User Manual,1-Drill Template,1-Spare Package,. |
| Smart Home Compatibility | Smart Home Compatible |
What Buyers Say
Many users of similar smart locks find the fingerprint recognition to be surprisingly quick and accurate, making daily entry convenient. The ability to manage multiple users and view access logs through an app is often appreciated for monitoring who enters and exits. However, a recurring theme across smart locks is the variability of battery life, which can be shorter than advertised, especially with frequent use or if the lock struggles with connectivity. Some users also report frustration with app connectivity issues, requiring troubleshooting to maintain consistent remote access. The necessity of a separate gateway for full smart home integration is a common point of contention for budget-friendly options.
“Ugh, the fingerprint works fast, but I gotta buy another box just to tell Alexa to unlock it? Seriously? And the batteries drain faster than they say if you actually use it a lot. Still beats fumbling for keys though.”
Common Praise
- Fingerprint sensor responds quickly and consistently
- Multiple ways to unlock (fingerprint, app, key) provide convenience
- App allows for user management and viewing access history
- Auto-lock feature provides peace of mind for securing the door
- Emergency Type-C port is a practical backup for dead batteries
Common Complaints
- Remote control and voice assistant features require a separately purchased gateway
- Battery life can be shorter than the advertised 12 months, especially with heavy use
- App connectivity can be inconsistent, leading to frustration with remote access
- Installation can be tricky, with some users reporting difficulty with alignment
- Lack of explicit weather resistance limits its suitability for exposed outdoor doors
Ownership Tips
- The auto-lock feature can be a double-edged sword; it's convenient but can lock you out if you forget the key during initial setup
- Fingerprint registration might take a few attempts to get right for optimal recognition
- The 'silent mode' is useful for not disturbing others when coming and going
- The mechanical keys are essential to keep in a safe, accessible place for emergencies
- The low-battery warning is crucial, as a completely dead battery means relying on the emergency Type-C port
Frequently Asked Questions
Does this lock work with Alexa or Google Assistant?
Yes, but you need to purchase the Gavdhe gateway separately to enable remote control and voice assistant integration.
How many fingerprints can it store?
The lock can store up to 100 different fingerprints for various users.
What happens if the batteries die?
It has a low-battery alert, and you can temporarily power it using a power bank via the built-in Type-C emergency port to unlock it.
Can I control it remotely with my phone?
Remote control via the Tuya Smart App is possible, but requires the Gavdhe gateway, which is sold separately.
Is it suitable for outdoor use?
The product material is aluminum, but there is no explicit mention of weather resistance, so it's best suited for interior doors or sheltered outdoor locations.
Buying Guide
When looking at smart door locks, you need to think about how you'll actually use it every day. Do you want to ditch keys completely, or just have a backup? How important is it to unlock your door from your phone when you're not home? And what kind of door are you putting it on – an interior bedroom door or your main front door?
Fingerprint Recognition Speed
This tells you how fast the lock identifies your finger. A 0.3-second speed means it unlocks almost instantly, like tapping your phone's fingerprint sensor.
Access Options
This refers to how many ways you can get in. Having fingerprint, app, and a physical key means you have multiple backups, so you're less likely to get locked out, similar to having a spare car key.
Gateway Requirement
Some smart locks need a separate 'gateway' device to connect to your home Wi-Fi for remote control and voice assistants. Think of it like a translator that lets your lock talk to your router and smart speakers.
Alternatives
If you need a lock with built-in Wi-Fi for remote access without an extra hub, or a higher security rating for exterior doors, look for models that explicitly state these features.
You Might Also Like
Ring Wired Doorbell Elite (newest model), Native Power over Ethernet, Retinal 4K video, Remote Gate Access, 10x Enhanced Zoom, and Low-Light Sight
$300-$599A 4K PoE doorbell with 10x zoom and remote gate control, built for properties needing robust, wired security and advanced motion detection.
Blink Doorbell Mount, 2nd Gen Anti-Theft Blink Doorbell Camera Mount No Drilling with Rain Cover, Fit for Blink Video Doorbell 1st & 2nd Gen, No Block Sensor & Night Vision
$0-$49This is a no-drilling, anti-theft mount with a rain cover designed for Blink Video Doorbells (1st and 2nd Gen) on inward-opening doors 0.8-1.9 inches thick.
Ring Chime Pro
A plug-in chime and Wi-Fi extender for Ring devices, it provides audible alerts and a limited 2000 sq. ft. signal boost for Ring cameras and doorbells.
Ring Video Wired Doorbell (newest model), Home or business security, Two-Way Talk, advanced motion detection, HD camera and real-time alerts to monitor your front door (wiring required)
This 1080p wired doorbell delivers real-time alerts and two-way talk for front door monitoring, requiring existing wiring.