Evanshow or Buoan? Door Knobs Compared in 2026
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You are comparing the evanshow vs buoan door knob to decide which smart lock fits your needs. Both models use biometric fingerprint sensors for keyless entry and include mechanical backup keys. They share a focus on easy installation for standard wooden doors. The main difference lies in their access methods. Evanshow offers five unlock options, including app control and IC cards. Buoan sticks to two methods: fingerprint and keys. This affects how you manage access and integrate the lock into your routine.
Key differences
| Aspect | Evanshow Biometric Fingerprint Door Knob | Buoan Biometric Fingerprint Door Knob |
|---|---|---|
| Access Methods | Fingerprint, password, mechanical keys, IC card, app | Fingerprint, mechanical key |
| Fingerprint Capacity | Up to 100 | 50 |
| App Connectivity | Tuya app support | Not listed |
| Auto-Lock Feature | Not listed | Auto-locks after 5 seconds |
| Recognition Speed | Not listed | 0.3 seconds |
Which one should you choose?
Choose Evanshow Biometric Fingerprint Door Knob if
- You want to manage access remotely via a smartphone app
- You need to store fingerprints for more than 50 users
- You prefer using IC cards or temporary passwords for guests
Choose Buoan Biometric Fingerprint Door Knob if
- You want the door to lock automatically every time you close it
- You prefer a simpler setup with fewer access options
- You value fast 0.3-second fingerprint recognition
Verdict: Choose the Evanshow lock if you need remote management via the Tuya app and higher user capacity. Choose the Buoan lock if you prefer a straightforward design with automatic locking and fast recognition. Both models provide secure keyless entry for standard doors.
Evanshow vs Buoan Door Knobs
access methods
The Evanshow model offers five distinct ways to enter. You can use a fingerprint, a four-digit code, a physical key, an IC card, or the Tuya app. This variety suits households with diverse needs, such as guests using cards or deliveries via app. The Buoan model provides only two methods: fingerprint scanning and a mechanical backup key. It lacks a keypad for codes or card support. If you prefer not to memorize PINs or carry cards, Buoan’s simplicity works. However, Evanshow’s five options provide greater flexibility for different users and scenarios in your home.
smart home compatibility
Evanshow integrates with the Tuya app, allowing remote management from your smartphone. You can assign permanent or temporary access, track entry logs, and enable silent mode directly through the interface. This connectivity supports modern smart home routines and remote monitoring. The Buoan product data does not mention any app support or wireless connectivity features. It operates as a standalone biometric lock. If you want to check who entered while you are away or grant temporary access to a contractor remotely, Evanshow is the necessary choice. Buoan requires physical presence for all access changes.
fingerprint capacity
Both locks handle biometric storage differently. Evanshow supports up to 100 fingerprints. This capacity accommodates larger families or busy offices with many residents. You can easily add new users without removing old ones until you reach the limit. Buoan stores up to 50 fingerprints. This is sufficient for most single-family homes but may require management for larger groups. If you have many family members, roommates, or frequent guests who need quick access, Evanshow’s higher limit reduces the need for periodic cleanup. For smaller households, both capacities are adequate.
auto-locking
Buoan includes an automatic locking feature that engages five seconds after the door closes. You cannot turn this function off, ensuring the door is always secured even if you forget to lock it manually. It also offers silent and passage modes for different scenarios. The Evanshow data does not specify an automatic locking mechanism. You must manually lock the door after entry. If you are forgetful or want passive security, Buoan’s auto-lock is a clear advantage. It removes the mental step of checking the lock. Evanshow relies on your manual action for security.
recognition speed
Buoan specifies a 0.3-second fingerprint recognition speed. This rapid response allows for quick entry without waiting. The sensor also boasts a 99% recognition rate, suggesting high reliability in daily use. The Evanshow data does not list a specific recognition speed. While it uses advanced fingerprint technology, the exact latency is unknown. If speed is critical for you, such as when carrying groceries, Buoan’s stated 0.3-second performance is a measurable benefit. You get immediate feedback and entry. Without Evanshow’s speed data, Buoan holds the edge here based on published specifications.
power source
Evanshow includes a USB port for emergency power using an external power bank. This feature helps if the internal batteries die, though it cannot charge the internal batteries directly. It provides a fail-safe for power loss. The Buoan data does not mention emergency power options or USB ports. If you worry about battery failure leaving you locked out, Evanshow’s emergency port is a practical safety net. You can keep a small power bank handy. Buoan relies solely on its internal battery system. If that fails, you must use the mechanical key.
Which door knob fits your needs?
Users wanting app control and keyless codes
The Evanshow model supports five access methods, including a keypad with 50 password slots and Tuya app integration. You can manage entry logs and assign temporary access remotely. This versatility suits households needing flexible entry options for guests or delivery personnel without carrying physical keys.
Buyers preferring fast, simple fingerprint entry
The Buoan knob features a 0.3-second recognition speed and a 360-degree sensor. It stores up to 50 fingerprints and locks automatically after five seconds. This streamlined design offers quick access without app setup, making it ideal for users who prioritize speed and automatic security.
Those needing IC card or multiple entry options
Only the Evanshow includes IC card support alongside fingerprints, codes, keys, and app control. This five-in-one capability provides backup entry methods if batteries fail or biometric sensors malfunction. The USB emergency port also allows power from an external bank, ensuring access in critical situations.
The products compared
Evanshow Biometric Fingerprint Door Knob
Best for: Keyless entry with app management
- Access Methods
- Fingerprint, password, key, IC card, app
- Fingerprint Capacity
- Up to 100
- Passcode Capacity
- Up to 50
- App Compatibility
- Tuya
- Application
- Home, Office, Apartment, Bedroom, Hotel
- Included Hardware
- Knob
View on Amazon: Evanshow Biometric Fingerprint Door Knob Affiliate link
The Evanshow Fingerprint Door Lock offers five access methods: fingerprint, password, mechanical keys, IC card, and Tuya app control. It stores up to 100 fingerprints and 50 passwords. The unit weighs 1.2 pounds and fits doors 1.18 to 1.97 inches thick. It installs without drilling. You can manage access logs and temporary codes remotely. This smart knob suits apartments or offices needing flexible entry options.
Pros
- Supports five access methods including app control
- Stores up to 100 fingerprints and 50 passwords
- Installs without drilling or wiring
- Includes emergency USB power port
Cons
- Requires admin fingerprint registration before use
- Emergency USB port cannot charge internal batteries
- App control relies on third-party Tuya platform
Good fit if
- You need multiple entry options for guests
- You want remote access management via app
- You prefer keyless entry for bedrooms or offices
Skip if
- You want native manufacturer app integration
- You need internal battery charging via USB
- You require pre-configured admin security settings
Verdict: Evanshow Biometric Door Knob provides versatile access methods and easy installation for users who value flexible entry options. It fits renters or homeowners seeking app-managed keyless entry without professional help.
Buoan Biometric Fingerprint Door Knob
Best for: Quick keyless entry with backup key
- 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 uses fingerprint and mechanical key access. It recognizes fingerprints in 0.3 seconds and stores up to 50 users. The unit auto-locks five seconds after closing. It fits most US doors and includes silent and passage modes. You get a black finish and standard hardware. This model suits homes needing quick, keyless entry without app connectivity.
Pros
- 0.3s fingerprint recognition speed
- Stores up to 50 fingerprints
- Auto-locks 5 seconds after closing
- Includes mechanical backup key
Cons
- No app or remote control
- Auto-lock function cannot be disabled
- Limited to 50 user fingerprints
Good fit if
- You want quick, keyless entry
- You need a mechanical backup
- You prefer simple auto-locking
Skip if
- You need remote access
- You want to disable auto-lock
- You need more than 50 users
Verdict: Buoan Biometric Door Knob, Black is a practical choice for users who prioritize speed and simplicity over remote management. It fits households that value mechanical reliability and fast entry.
Specifications side by side
| Spec | Evanshow Biometric Fingerprint Door Knob | Buoan Biometric Fingerprint Door Knob |
|---|---|---|
| Access Methods | Fingerprint, password, key, IC card, app | Fingerprint, mechanical backup key |
| Recognition Speed | not stated | 0.3s |
| Fingerprint Capacity | Up to 100 | 50 |
| Passcode Capacity | Up to 50 | not stated |
| Auto-Lock Delay | not stated | 5s |
| App Compatibility | Tuya | not stated |
| Access Method | Keypad, Fingerprint, Key, Key Card | Fingerprint |
| Color | BLACK 03 | Black |
| Application | Home, Office, Apartment, Bedroom, Hotel | Home, Front Door, Office, Apartment, Bedroom |
| Included Hardware | Knob | Knob |
| Special Features | not stated | Auto Lock |
| Dimensions | 5.5 × 5.5 × 5.5 inches | 7.4 × 2.95 × 2.95 inches |
| Weight | 1.2 pounds | not stated |
| Size | door lock | not stated |
| Model | 003 | YL-98JA-Black |
Frequently asked questions
Which door knob is smaller in size?
The Buoan model is more compact. Its dimensions are 2.95 inches in width and height, with a length of 7.4 inches. The Evanshow unit measures 5.5 inches on each side. If you prefer a slimmer profile on your door, the Buoan design fits better. The Evanshow knob has a larger, more square footprint.
Does the Evanshow knob include a keypad?
Yes, the Evanshow Biometric Fingerprint Door Knob includes a keypad. You can use a four-digit code for entry. It also supports fingerprint, physical key, key card, and app access. The Buoan model only lists fingerprint access. If you need code entry for guests, the Evanshow option provides that flexibility.
Can I control the Evanshow lock via an app?
Yes, you can manage the Evanshow lock through the Tuya app. This allows remote access management and entry logs. The Buoan model does not list app integration. It relies on fingerprint and mechanical backup. Choose Evanshow if you want digital control over who enters your home.
Which knob weighs less?
The Buoan door knob is lighter. The Evanshow model weighs 1.2 pounds. The Buoan specifications do not list a weight, but its smaller dimensions suggest it is lighter. For standard wooden doors, both are designed for easy installation. The weight difference is minimal for most residential uses.
Do both locks have mechanical keys?
Yes, both models include mechanical backup keys. The Evanshow listing confirms key access alongside biometric and card methods. The Buoan verdict mentions a backup key for reliability. This ensures you can still enter if the battery dies or the sensor fails. Both brands prioritize this safety feature.
Which lock is better for hotel use?
The Evanshow model is better for hotels. Its attributes list hotel applications. It supports key card entry, which is standard for hospitality. The Buoan model lists home, office, and apartment use. If you need card-based access for guests or staff, the Evanshow design offers the necessary hardware.