Buoan Biometric Fingerprint Door Knob vs Buoan 5-in-1 Smart Fingerprint Door (2026): Key Differences
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You are comparing the buoan biometric fingerprint door knob vs 5 in 1 smart fingerprint door. Both units use a 0.3-second fingerprint sensor and lock automatically after five seconds. They both fit most US doors and include mechanical key backups. The main difference lies in access methods and connectivity. One relies on fingerprints and keys, while the other adds app control, passwords, and NFC cards for broader access options.
Key differences
| Aspect | Buoan Biometric Fingerprint Door Knob | Buoan 5-in-1 Smart Fingerprint Door Lock |
|---|---|---|
| Access Methods | Fingerprint, mechanical key | Fingerprint, app, password, card, key |
| Fingerprint Capacity | 50 users | 100 fingerprints |
| Connectivity | Not listed | Bluetooth with app |
| Dimensions | 7.4 x 2.95 x 2.95 inches | 6.34 x 2.6 x 2.6 inches |
Which one should you choose?
Choose Buoan Biometric Fingerprint Door Knob if
- You prefer a simpler mechanical design without app requirements.
- You only need fingerprint and key access for your household.
Choose Buoan 5-in-1 Smart Fingerprint Door Lock if
- You want multiple entry options like passwords and NFC cards.
- You need app notifications and remote user management.
Verdict: Choose the Buoan Biometric Fingerprint Door Knob if you want straightforward, reliable entry without smart features. Pick the Buoan 5-in-1 Smart Fingerprint Door Lock if you need app connectivity and diverse access methods like passwords and cards.
Access Methods and Smart Features
Access Methods
The Buoan 5-in-1 Smart Fingerprint Door Lock offers five distinct ways to enter your home. You can use a fingerprint, a mobile app, a numeric password, an NFC card, or a mechanical key. This variety supports different household members, from children who may struggle with codes to elderly users who prefer tapping a card. The Buoan Biometric Fingerprint Door Knob provides only two methods: fingerprint scanning and a mechanical backup key. If you need multiple entry options for a busy household, the five-method approach provides greater flexibility and convenience for everyone.
Fingerprint Storage
When comparing biometric capacity, the Buoan 5-in-1 Smart Fingerprint Door Lock allows you to store up to 100 unique fingerprints. This is a significant advantage for larger families or shared office spaces with many users. The Buoan Biometric Fingerprint Door Knob has a lower limit, storing up to 50 fingerprints. Both units recognize fingerprints in 0.3 seconds, ensuring quick access for everyone. However, if you have a large number of family members or frequent guests who need their own saved profile, the higher capacity on the 5-in-1 model prevents you from hitting the storage limit quickly.
Connectivity
The Buoan 5-in-1 Smart Fingerprint Door Lock includes built-in Bluetooth connectivity. This feature allows you to control the lock via a mobile app, view unlock records, and receive real-time notifications on your phone. You can also set custom user permissions for different family members. The Buoan Biometric Fingerprint Door Knob lacks any mentioned wireless connectivity or app support. It operates entirely offline using local fingerprint data and mechanical keys. If you want remote monitoring or digital logs of who enters your home, the Bluetooth-enabled model is the necessary choice.
Emergency Power
Power management differs between the two units. The Buoan 5-in-1 Smart Fingerprint Door Lock features a Type-C port for emergency charging. When the four 1.5V alkaline batteries run low, indicated by a red light, you can use a portable charger to power the lock temporarily. It also retains the mechanical key backup. The Buoan Biometric Fingerprint Door Knob does not list a Type-C emergency charging option. It relies solely on its internal battery and the mechanical key for entry if power fails. For situations where you might forget to replace batteries, the portable charging option adds a layer of security.
Dimensions
Physical size varies between the two models. The Buoan Biometric Fingerprint Door Knob measures 7.4 inches in length, 2.95 inches in width, and 2.95 inches in height. The Buoan 5-in-1 Smart Fingerprint Door Lock is more compact, measuring 6.34 inches in length, 2.6 inches in width, and 2.6 inches in height. The 5-in-1 model also weighs 1.76 pounds. If you have a door with limited space for the handle assembly or prefer a smaller, less obtrusive profile, the 5-in-1 model offers a tighter footprint. Both fit most standard US doors, so installation compatibility remains high for both.
Which Buoan Door Lock Suits You
Simple entry needs with few users
Choose this model if you only need fingerprint and key access. It stores up to fifty fingerprints and locks automatically after five seconds. The design is straightforward with no app connectivity. This is ideal for small households that prefer a basic, reliable entry system without extra smart features.
Large households needing many access types
This lock supports five access methods including app, password, and NFC card. It stores up to one hundred fingerprints and two hundred total users. You can track entry logs via Bluetooth and set custom permissions. It is best for families who need flexible entry options and remote monitoring capabilities.
Users wanting app integration and logs
Select this option for full smart home integration. The Bluetooth app allows you to view unlock records and receive real-time notifications. You can create share members with limited authority or family members with full access. This level of control and logging is not available on the simpler biometric-only knob.
The products compared
Buoan Biometric Fingerprint Door Knob
Best for: Quick fingerprint entry without app control
- Access Methods
- Fingerprint, mechanical backup key
- Recognition Speed
- 0.3s
- Fingerprint Capacity
- 50
- Auto-Lock Delay
- 5s
- Color
- Black
- Application
- Home, Front Door, Office, Apartment, Bedroom
View on Amazon: Buoan Biometric Fingerprint Door Knob Affiliate link
This Buoan smart door knob offers fingerprint and mechanical key access. It recognizes fingerprints in 0.3 seconds with a 99% rate. You can store up to 50 unique fingerprints. The unit auto-locks five seconds after closing. It fits most US doors and installs with basic tools. This model suits those needing quick entry without a keypad or app.
Pros
- 0.3s biometric recognition speed
- 50-user fingerprint capacity
- Auto-locks in 5 seconds
- Mechanical key backup included
Cons
- No app or remote control
- Auto-lock function cannot be disabled
- No passage mode toggle mentioned in specs
Good fit if
- You want simple keyless entry
- You need fast fingerprint access
- You prefer mechanical backup keys
Skip if
- You require smartphone control
- You want to disable auto-lock
- You need keypad or code entry
Verdict: Buoan Biometric Fingerprint Door Knob delivers rapid 0.3s entry for households prioritizing speed over smart features. It fits users who value mechanical reliability and simple installation.
Buoan 5-in-1 Smart Fingerprint Door Lock
Best for: Households needing multiple entry methods and app logs
- Access Methods
- Fingerprint, app, password, card, key
- Recognition Speed
- 0.3 seconds
- Fingerprint Capacity
- 100
- Connectivity
- Bluetooth
- Application
- Front Door, Bedroom
- Included Hardware
- Handle
View on Amazon: Buoan 5-in-1 Smart Fingerprint Door Lock Affiliate link
The Buoan 5-in-1 Smart Fingerprint Door Lock offers five access methods: fingerprint, app, password, NFC card, and mechanical key. It stores up to 100 fingerprints with 0.3-second recognition. The zinc alloy build weighs 1.76 pounds. You get real-time app notifications and customizable user permissions. It installs in about 10 minutes on standard US doors. This lock suits those wanting multiple entry options and detailed access logs.
Pros
- Supports five access methods including fingerprint, app, password, card, and key
- Stores up to 100 fingerprints with 0.3-second recognition speed
- Zinc alloy construction for durability and silent auto-locking
- Allows customizable user permissions via the app
Cons
- Automatic locking function cannot be disabled
- Requires four 1.5V alkaline batteries for power
- No Wi-Fi connectivity mentioned for remote access outside Bluetooth range
Good fit if
- You want multiple entry options for different family members
- You need quick fingerprint access with detailed app logs
- You prefer a zinc alloy build for durability
Skip if
- You need a lock that can be set to manual locking
- You require Wi-Fi for remote access without a phone nearby
- You prefer a battery-free or hardwired power source
Verdict: The Buoan 5-in-1 Smart Fingerprint Door Lock is a practical choice for households needing flexible entry methods and detailed access control through its app. It fits buyers who value quick fingerprint access and durable construction over remote Wi-Fi capabilities.
Specifications side by side
| Spec | Buoan Biometric Fingerprint Door Knob | Buoan 5-in-1 Smart Fingerprint Door Lock |
|---|---|---|
| Access Methods | Fingerprint, mechanical backup key | Fingerprint, app, password, card, key |
| Recognition Speed | 0.3s | 0.3 seconds |
| Fingerprint Capacity | 50 | 100 |
| Auto-Lock Delay | 5s | not stated |
| Connectivity | not stated | Bluetooth |
| Access Method | Fingerprint | Fingerprint, Key, App Control, Key Card |
| Color | Black | YL-52-Black |
| Application | Home, Front Door, Office, Apartment, Bedroom | Front Door, Bedroom |
| Included Hardware | Knob | Handle |
| Special Features | Auto Lock | not stated |
| Dimensions | 7.4 × 2.95 × 2.95 inches | 6.34 × 2.6 × 2.6 inches |
| Weight | not stated | 1.76 pounds |
| Model | YL-98JA-Black | YL-52-Black |
Frequently asked questions
Which Buoan lock is better for quick entry without an app?
The Buoan Biometric Fingerprint Door Knob is the better choice for you if you want speed without smart features. It delivers rapid 0.3-second entry times. This model is designed for households that prioritize mechanical reliability and simple installation. You get straightforward fingerprint access without the complexity of app connectivity or remote control options.
Does the 5-in-1 model support remote access via Wi-Fi?
The Buoan 5-in-1 Smart Fingerprint Door Lock does not offer remote Wi-Fi capabilities. Its verdict notes that buyers should value quick fingerprint access and durable construction over remote features. You can use the mobile app for local logs, but you cannot control the lock from outside your network range.
How do the physical dimensions of these two knobs compare?
The Buoan Biometric Fingerprint Door Knob is slightly larger than the 5-in-1 model. It measures 7.4 inches in length, 2.95 inches in width, and 2.95 inches in height. The 5-in-1 Smart Fingerprint Door Lock is more compact at 6.34 inches long, with 2.6-inch width and height. Both fit standard US doors.
What colors are available for these Buoan door locks?
Both models are available in black. The Buoan Biometric Fingerprint Door Knob is listed specifically as black. The 5-in-1 Smart Fingerprint Door Lock also features a black finish, identified by the model code YL-52-Black. You do not have other color options for either unit based on the current specifications.
Is the 5-in-1 model heavier than the standard biometric knob?
Yes, the Buoan 5-in-1 Smart Fingerprint Door Lock is heavier. It weighs 1.76 pounds. The standard Biometric Fingerprint Door Knob does not list a weight in its specifications. The 5-in-1 model includes additional hardware for its five entry methods, which likely contributes to this added mass compared to the simpler knob.
Can I use multiple entry methods on the Buoan 5-in-1 lock?
Yes, the Buoan 5-in-1 Smart Fingerprint Door Lock supports five distinct entry methods. You can use a fingerprint, a mobile app, a numeric password, an NFC card, or a mechanical key. This variety allows you to choose the most convenient access method for different situations or users in your household.
Which model is best for users who want simple mechanical reliability?
The Buoan Biometric Fingerprint Door Knob is best for users seeking simple mechanical reliability. It focuses on rapid 0.3-second fingerprint entry without app distractions. This model fits users who value straightforward installation and dependable performance. You get essential security without the added complexity of smart home integration or digital logs.
Do both locks include a mechanical key backup?
Yes, both locks include mechanical key backups. The comparison section confirms that both units fit most US doors and include this standard safety feature. This ensures you can always enter your home even if the electronic components fail or the battery dies. It is a practical safety net for both models.