Fitbit Charge 6

Fitbit Charge 6
Security Grade B Calculator v1	Fitbit Charge 6 Brand: Fitbit (Parent: Google) Category: Wearable Fitness Tracker • Model / Gen: Release Date: 2023-09-01 • Status: In sale Classification Date: 2026-10-25 • Official Website

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	—	Sealed wrist-worn device.
Known vulnerabilities	None	—
Prior attacks	Rare	—	No widespread attack campaigns.
Updatability	Very common	🔗 Proof	Firmware updates via Fitbit app.
Category Score	Score: 2 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	🔗 Proof	Requires Fitbit/Google account for app sync.
Communications	Encrypted with up-to-date encryption	—	Uses BLE and TLS for cloud sync.
Storage	Encrypted with up-to-date encryption	—	Health data synced and encrypted in cloud.
Category Score	Score: 2 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Basic	—	Managed through Fitbit/Google account.
Authentication	Secure	—	Google account supports 2FA.
Brute-force protection	Exist	—	Google account rate limiting and 2FA.
Event logging	Partial logging	—	Activity and sleep data logged in app.
Passwords	Require change after setup	—	Google account password requirements.
Category Score	Score: 2 / 3

Technical Specifications

Property	Details
Operating System & App	(Companion App: )
Hardware (CPU / GPU)	CPU: • GPU:
Memory & Storage	Memory: • Storage:
Power, Battery & Charging	Battery: • Power: • Charging:
Display & Camera	Display: • Camera:
Sound & Connectivity	Sound: • Connectivity:
Physical (Dimensions & Mass)	Dimensions: • Mass:

The Fitbit Charge 6 is a health and fitness wearable that syncs via Bluetooth to the Fitbit app. It is backed by Google account infrastructure with 2FA support. While it collects sensitive health data, it benefits from Google's security practices. Standard security management is recommended.