Huawei Watch GT 3 (MIL-B19)

Huawei Watch GT 3 (MIL-B19)
Security Grade B Calculator v	Huawei Watch GT 3 Brand: Huawei (Parent: Huawei Technologies Co., Ltd.) Category: Wearable • Model / Gen: MIL-B19 Release Date: 2021-11-17 • Status: In sale Classification Date: • Official Website

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	None	—
Known vulnerabilities	Rare	🔗 Proof
Prior attacks	Rare	🔗 Proof
Updatability	Very common	—
Category Score	Score: 2 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	—
Communications	Encrypted with up-to-date encryption	—
Storage	Encrypted with up-to-date encryption	—
Category Score	Score: 2 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Basic	—
Authentication	Secure	—
Brute-force protection	Exist	—
Event logging	Partial logging	—
Passwords	Default/Common/Easy to guess	—
Category Score	Score: 2 / 3

Technical Specifications

Property	Details
Operating System & App	Harmony OS (Companion App: )
Hardware (CPU / GPU)	CPU: Huawei Kirin A1 • GPU:
Memory & Storage	Memory: 32 MB RAM • Storage: 4GB
Power, Battery & Charging	Battery: Li-ion, 455 mAh • Power: • Charging:
Display & Camera	Display: 1.43 inch AMOLED • Camera:
Sound & Connectivity	Sound: • Connectivity: Bluetooth 5.2, NFC
Physical (Dimensions & Mass)	Dimensions: • Mass:

This smartwatch runs HarmonyOS and is affected by CVE-2023-22779, a vulnerability in the LiteOS component of some Huawei devices (CVSS 6.5, Medium) that can lead to information leakage. In addition, research has shown that Huawei wearable devices may not properly validate Bluetooth pairing requests, which allows a nearby attacker to intercept data such as step counts and heart rate. The watch stores health data and connects to the phone by Bluetooth, so a compromise can expose personal health information. Huawei provides regular firmware updates, which reduces the risk.