Xiaomi Smart Lock 4 Pro

Security Grade

A-

Calculator v1

Xiaomi smartlock 4pro

   Brand: Xiaomi (Parent: Xiaomi Technology Co., LTD)

   Category: smartlock • Model / Gen: 4 Pro

   Release Date: 2023-08-14 • Status:

   Classification Date: 2025-10-15 • Official Website

Security Evaluation

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	🔗 Proof	No widespread hardware backdoor reports as a consumer product
Known vulnerabilities	None	—
Prior attacks	None	—
Updatability	Very common	🔗 Proof	Supports firmware OTA updates
Category Score	Score: 2 / 3

Criterion	Value	Proof	Comment
Authentication with other systems	Full	🔗 Proof	Full integration with Mi ecosystem
Communications	No encryption	—
Storage	Encrypted with up-to-date encryption	🔗 Proof	Official claims of encrypted data storage
Category Score	Score: 2 / 3

Criterion	Value	Proof	Comment
Account management	Full	🔗 Proof	Full account lifecycle management
Authentication	Secure	🔗 Proof	Supports fingerprint, password, temporary codes, etc.
Brute-force protection	Exist	🔗 Proof	Has abnormal attempt protection mechanism
Event logging	Access event logged	🔗 Proof	Logs all unlocking events
Passwords	Require change after setup with complexity requirements	🔗 Proof	Supports one-time passwords
Category Score	Score: 1 / 3

Property	Details
Operating System & App	(Companion App: Mi Home)
Hardware (CPU / GPU)	CPU: • GPU:
Memory & Storage	Memory: • Storage:
Power, Battery & Charging	Battery: Lithium battery power supply • Power: DC power supply • Charging: Type-C emergency power supply
Display & Camera	Display: AMOLED • Camera: 1080p HD camera
Sound & Connectivity	Sound: • Connectivity: Bluetooth
Physical (Dimensions & Mass)	Dimensions: • Mass: