introduction
In today’s digital era, smart home security is growing rapidly, and Smartstone’s new 3D Face Recognition Door Lock brings an advanced innovation into this field. If you are looking for a smart lock for your home, office, hostel, or apartment — one that includes camera, doorbell, fingerprint, face recognition, and Wi-Fi control all in one device — then this product appears as the most complete solution in the market.
In this Smartstone 3D Face Recognition Door Lock Review, we will deeply explore this smart lock — features, installation, performance, battery life, security, pros & cons, and whether this product is the best option for you or not.
Let’s begin.
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What is Smartstone 3D Face Recognition Door Lock?
Smartstone’s smart lock is an all-in-one intelligent home security system that includes:
3D Face Recognition
Biometric Fingerprint Sensor
HD Camera with Night Vision
Smart Cat-Eye Viewer
Wi-Fi Smart Control (Tuya App)
IC Card Unlock
Password Unlock
Temporary Password
Physical Keys
Doorbell Included
Meaning you get everything in a single device — the same things people normally buy separately as multiple gadgets.
The main highlight of the Smartstone lock is the combination of 3D face detection + fingerprint, which takes both accuracy and security to the next level.
Smartstone 3D Face Recognition Door Lock Review – Key Features Explained
1. 3D Face Recognition Technology
Many smart locks on the market offer face recognition, but most of them use 2D images that can be bypassed easily. Smartstone solves this problem with 3D Face Mapping.
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What Does This Mean?
It scans your face’s depth, shape, and structure
It cannot be unlocked with a photo, video, or mask
It detects faces even in low-light or pitch-dark conditions
Works quickly for elderly people and children
If you want hands-free unlocking, face recognition is the most powerful feature of this smart lock.
2. Fingerprint Recognition – FPC Semiconductor Technology
The Smartstone fingerprint module uses FPC Semiconductor’s Live Fingerprint Capture Unit, which is known as an industry-grade high-accuracy scanner.
Advantages of Fingerprint Scanner
0.3–0.5 seconds unlock speed
Extremely low false acceptance rate
Moist, dusty, and oily fingers also read easily
Continuous learning: the more you use it, the better it becomes
Fingerprint unlocking is the best option for users of all ages.
3. HD Camera + Night Vision + Smart Cat-Eye
This lock includes a built-in 1080p HD camera that:
Shows live video when someone presses the doorbell
Sends alerts when motion is detected
Provides clear surveillance even in darkness with night vision
The indoor unit has a high-resolution color display, allowing family members to directly see who is outside the door. This feature is especially helpful for children and elderly at home.
4. Multiple Unlocking Methods (Total 9 Ways!)
Smartstone’s smart lock is one of the few devices in the market that offers 9 unlocking modes:
1. 3D Face Unlock
2. Fingerprint Unlock
3. IC Card Unlock
4. Password Unlock
5. Temporary Password Unlock
6. Tuya App Remote Unlock
7. WeChat Mini App Unlock
8. Mechanical Key
9. Emergency Outdoor Charging Unlock
Meaning no matter the situation — you will never get locked out.
5. Built-in Wi-Fi + Tuya Smart App Control
One of the biggest advantages of this smart lock is that Wi-Fi is already built-in. Many other smart locks require a separate gateway or bridge, which adds extra cost.
Features of Tuya App
Lock/unlock from anywhere
Real-time push notifications
Battery status monitoring
Visitor logs
Live camera view
Generate remote temporary passwords
If you are at work and a guest arrives, you can unlock the door directly through the app.
6. Powerful 4200mAh Battery
The battery capacity is long-lasting, and what makes it unique is:
Low Battery Mode
Even after the low-battery alert, the device can perform 100 unlock operations.
Emergency USB Charging Port
If the battery fully dies:
Connect a power bank to unlock the door easily
Mechanical Key
In the worst case, you can always use the physical key.
Installation – Is It Really Difficult? (Honest Review)
The product description clearly mentions:
"Installation is a little DIFFICULT. Mortise is not suitable for standard doors."
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And this is absolutely true.
Issues You May Face
Screws need adjustments
Some screws may require cutting
Alignment issues with standard wooden doors
Installation can be tricky for beginners
Recommendation
If you have never installed smart locks before:
✔ Hire a professional carpenter/technician
✔ Watch the installation video first
✔ Follow the manual step-by-step
Once installed, the device works perfectly smooth.
Security Features – Is It Truly Safe?
Smartstone’s smart lock is loaded with advanced security tools:
1. Anti-Peep Password
You can enter random numbers before or after the real password — the lock only detects the correct hidden pattern.
2. Intrusion Alarm
When someone tries wrong attempts repeatedly, you get both an alert and a siren.
3. Camera Recording
Motion detection activates automatic recording.
4. Auto-Locking System
As soon as the door closes, the lock automatically engages.
5. Real-Time Notifications
Any activity triggers instant app notifications.
This device is an excellent security partner for homes, flats, offices, and hostels.
Performance Review – Daily Life Experience
Face Unlock Performance
Fast
Reliable
99% accurate
Works consistently even in low light
Fingerprint Performance
Extremely fast
Sensor keeps improving with use
Comfortable for kids and elderly
Wi-Fi & App Control
Smooth connection
Strong range
User-friendly app interface
Camera Quality
Clear 1080p resolution
Excellent night vision
Visitors can be recognized easily
Battery Life
2–3 months per charge (depends on usage)
Pros & Cons
Pros
✔ 3D Face Recognition
✔ 9 unlocking methods
✔ 1080p HD camera + night vision
✔ Built-in Wi-Fi (no gateway needed)
✔ Tuya app remote control
✔ High-accuracy fingerprint sensor
✔ Indoor cat-eye display
✔ Strong battery + emergency charging
✔ Perfect for elderly and kids
✔ 24/7 monitoring + alerts
Cons
✘ Installation is difficult for beginners
✘ Mortise does not fit all doors
✘ Professional installation recommended
✘ Slightly more expensive than normal smart locks
Who Should Buy the Smartstone 3D Face Recognition Door Lock?
Ideal For:
Families
Apartments
Offices
Shops
Airbnb hosts
Hostels
Villas
Not Ideal For:
Very thin or non-standard doors
Renters (without landlord permission)
Smartstone 3D Face Recognition Door Lock – Final Verdict
If you are planning to buy a high-tech all-in-one smart lock that offers camera, doorbell, fingerprint, face recognition, and remote control all together, then Smartstone’s smart lock is the best all-rounder solution in the market.
Why It’s Worth Buying
Premium security
Convenient unlocking options
Comprehensive smart features
Strong build quality
Full surveillance system built-in
Excellent for modern smart homes
Despite the installation difficulty, its performance is top-notch.
Rating: ⭐⭐⭐⭐⭐ 4.9/5 – Highly Recommended!
FAQs – Smartstone 3D Face Recognition Door Lock
1. Does this lock recognize faces at night?
Yes, it includes an infrared night-vision sensor.
2. How do I open the door if the battery dies?
Use a power bank or the mechanical key.
3. Does it need a separate Wi-Fi gateway?
No. Wi-Fi is built-in.
4. How difficult is the installation?
It can be challenging for beginners. Professional installation is recommended.
5. Is it waterproof for outdoor use?
Yes, it supports outdoor weather resistance.
Conclusion
The Smartstone 3D Face Recognition Door Lock is a complete security package that goes far beyond traditional locks. If you want smart security, camera surveillance, remote control, and multiple unlock methods, this lock performs beyond expectations.
This review gives you a clear idea of its pros, cons, performance, and real-life usage.
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