| Fitbit Sense 3 | ||
|---|---|---|
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Security Grade
Calculator v
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Fitbit Sense 3
Category: Smartwatch • Model / Gen: 3rd Generation Sense 3 Release Date: 2025-08-20 • Status: Classification Date: • Official Website | |
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Known hardware tampering | Rare | — | Minor tampering risk |
| Known vulnerabilities | Rare | — | Rare security issues |
| Prior attacks | None | — | No prior attacks |
| Updatability | Very common | — | Frequent updates |
| Category Score | Score: 2 / 3 | ||
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Authentication with other systems | Full | — | Supports Google login |
| Communications | Encrypted with obselete encryption | — | Uses modern encryption |
| Storage | Encrypted with up-to-date encryption | — | Secure data storage |
| Category Score | Score: 2 / 3 | ||
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Account management | Full | — | Secure and easy management |
| Authentication | Secure | — | Secure account access |
| Brute-force protection | Exist | — | Effective brute-force prevention |
| Event logging | Access event logged | — | Detailed event logging |
| Passwords | Require change after setup with complexity requirements | — | Strong password policy |
| Category Score | Score: 1 / 3 | ||
| Property | Details |
|---|---|
| Operating System & App | Fitbit OS 5 (Companion App: Fitbit App) |
| Hardware (CPU / GPU) | CPU: ARM Cortex M4 • GPU: Adreno 405 |
| Memory & Storage | Memory: 1GB RAM • Storage: 16GB |
| Power, Battery & Charging | Battery: 6-day battery life • Power: 4W • Charging: Wireless charging |
| Display & Camera | Display: 1.58 inches, 336 x 336 pixels • Camera: |
| Sound & Connectivity | Sound: Dual speakers • Connectivity: Bluetooth 5.0, Wi-Fi |
| Physical (Dimensions & Mass) | Dimensions: 40mm • Mass: 33g |
