The Nice Smart K8 is a mortise-type smart door lock with palm vein recognition, dual camera 3D face recognition, and semiconductor fingerprint sensor — delivering triple biometric access in a single lock. Also supports PIN code, 13.56MHz IC card, and mechanical key backup. Aluminium alloy and ABS with tempered glass panel. Powered by a 2500mAh lithium-ion rechargeable battery supporting approximately 10,000 operations with hidden USB-C charging. Tuya IoT and TTLock connectivity over Bluetooth with optional Wi-Fi and NFC. Human sensor auto-awake, safety lock, tamper alert, and battery alert. Working temperature -20°C to 60°C. Stores up to 100 palm/face profiles, 100 fingerprints, 100 PIN codes, and 100 IC cards. Silver and black. Compatible with wood and metal doors. OEM branding and ODM customization available.

Key Features
How It Works
| Specification | Details |
|---|---|
| Face ID / Palm ID Capacity | ≤100 |
| Fingerprint Capacity | ≤100 |
| Password Capacity | ≤100 |
| Card Capacity | ≤100 |
| Material | Aluminium Alloy + ABS + Tempered Glass |
| Power Supply | Lithium-Ion 2500mAh (Rechargeable via USB-C) |
| Battery Duration | Approx. 10,000 Unlocks |
| Door Opening Modes | Palm ID, Face ID, Fingerprint, PIN, IC Card, Mechanical Key |
| Connectivity | Bluetooth, Tuya/TTLock App, Wi-Fi/NFC (Optional) |
| Unlock Speed | ~0.5 Second |
| Working Temperature | -20℃ ~ 60℃ |
| Door Type | Wood, Metal |
| Biometric Methods | Palm Vein + Face Recognition + Fingerprint (Triple Biometric) |
| Security Features | Safety Lock, Tamper Alert, Hidden Backup Key, Battery Alert |
| Colors | Silver, Black |
What is palm vein recognition?
Palm vein recognition uses infrared sensors to scan the unique vein pattern beneath your skin. Unlike fingerprints, palm veins are internal and nearly impossible to replicate, making it one of the most secure biometric methods available.
Does palm recognition work with wet or dirty hands?
Yes. Because palm vein scanning reads internal vein patterns rather than surface prints, it works reliably regardless of skin condition — wet, dusty, or even lightly gloved hands.
How does the K8 compare to the X1?
Both feature face and palm recognition. The K8 is a compact handle-style mortise lock with a 2500mAh battery. The X1 is the premium model with a 4-inch IPS display, 4200mAh battery, and video conference capability.
Does the K8 have video intercom?
No. The K8 focuses on triple biometric authentication. For palm id with video intercom, see the X1 model.
Is the K8 available for OEM projects?
Yes. Full OEM/ODM customization with MOQ from 20 units. Ideal for executive offices, luxury residential, and high-security applications.