Aqara Smart Lock U400
From Wiki-IoT
Security Evaluation
1. Device Security
2. System Security
3. User Authentication
Technical Specifications
| Aqara Smart Lock U400 | ||
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Security Grade
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Aqara Smart Lock U400
Brand: Aqara (Parent: Lumi United Technology) Category: Smart Lock • Model / Gen: 1st Generation DL-D16E Release Date: 2026-01-06 • Status: In sale Classification Date: • Official Website | |
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Known hardware tampering | None | — | |
| Known vulnerabilities | Rare | — | |
| Prior attacks | None | — | |
| Updatability | Very common | — | |
| Category Score | Score: 2 / 3 | ||
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Authentication with other systems | Full | — | |
| Communications | Encrypted with up-to-date encryption | — | |
| Storage | Encrypted with up-to-date encryption | — | |
| Category Score | Score: 1 / 3 | ||
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Account management | Full | — | |
| Authentication | Secure | — | |
| Brute-force protection | Exist | — | |
| Event logging | Access event logged | — | |
| Passwords | Require change after setup | — | |
| Category Score | Score: 2 / 3 | ||
| Property | Details |
|---|---|
| Operating System & App | Proprietary RTOS (Aqara firmware) (Companion App: Aqara Home) |
| Hardware (CPU / GPU) | CPU: Not publicly disclosed • GPU: Not applicable |
| Memory & Storage | Memory: User capacity: up to 100 users, 75 PIN codes, 50 fingerprints, 35 NFC cards • Storage: On-device encrypted storage for user credentials; capacity not publicly disclosed |
| Power, Battery & Charging | Battery: 4880 mAh rechargeable Li-ion, removable, 7.3V; up to ~6 months per charge • Power: Battery-powered (7.3V Li-ion); USB-C emergency power (5V) available for dead-battery situations • Charging: USB-C port on battery; slow charging (~7 hours full charge, no fast charging) |
| Display & Camera | Display: Touchscreen keypad (for PIN code entry) • Camera: Not applicable |
| Sound & Connectivity | Sound: Built-in speaker for voice alerts (low-battery notifications, voice assistant control) • Connectivity: UWB, Thread (Matter over Thread), Bluetooth, NFC; No Wi-Fi radio (relies on Thread border router for remote access) |
| Physical (Dimensions & Mass) | Dimensions: 178 × 76 × 46.9 mm • Mass: Not publicly specified |