Xiaomi Watch S4
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Security Grade
Calculator v
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Xiaomi Watch S4
Brand: Xiaomi Category: smartwatch • Model / Gen: 4 Xiaomi Watch S4 ：M2425W1 Xiaomi Watch S4 eSIM ：M2424W1 Xiaomi Watch S4 eSIM 15 Release Date: 2024-10-29 • Status: In sale Classification Date: • Official Website | |
Contents
Security Evaluation
1. Device Security
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Known hardware tampering | None | 🔗 Proof | |
| Known vulnerabilities | None | 🔗 Proof | |
| Prior attacks | None | 🔗 Proof | |
| Updatability | Very common | 🔗 Proof | |
| Category Score | Score: 1 / 3 | ||
2. System Security
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Authentication with other systems | Full | 🔗 Proof | |
| Communications | Encrypted with up-to-date encryption | 🔗 Proof | |
| Storage | Encrypted with up-to-date encryption | 🔗 Proof | |
| Category Score | Score: 1 / 3 | ||
3. User Authentication
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Account management | Full | 🔗 Proof | |
| Authentication | Secure | 🔗 Proof | |
| Brute-force protection | Exist | 🔗 Proof | |
| Event logging | Access event logged | 🔗 Proof | |
| Passwords | Require change after setup with complexity requirements | 🔗 Proof | |
| Category Score | Score: 1 / 3 | ||
Technical Specifications
| Property | Details |
|---|---|
| Operating System & App | Xiaomi Surge OS2 (Companion App: Xiaomi Wearables) |
| Hardware (CPU / GPU) | CPU: Snapdragon Wear 5100 (or MediaTek MT2735) – mid-range wearables processor optimized for low power consumption • GPU: Adreno A504 (paired with Snapdragon Wear 5100) or integrated GPU in MediaTek MT2735 |
| Memory & Storage | Memory: 2GB LPDDR4X – for smooth multitasking of apps, notifications, and fitness tracking • Storage: 32GB eMMC – for storing apps, music, offline maps, and fitness data |
| Power, Battery & Charging | Battery: 500mAh lithium-ion polymer battery – supports up to 14 days of typical use, 7 days of heavy use, or 36h of GPS mode • Power: Typical power consumption: ~3mA (idle); ~15mA (active fitness tracking); ~80mA (GPS + heart rate monitoring) • Charging: Magnetic wireless charging – 0-100% charge in ~60 minutes; supports fast charging (10min charge = 30% battery) |
| Display & Camera | Display: 1.43-inch AMOLED round display – 466x466 resolution (326 PPI), 100% DCI-P3 color gamut, 500 nits peak brightness, scratch-resistant Corning Gorilla Glass 3 • Camera: No built-in camera (consistent with most Xiaomi "Watch S" models, which focus on fitness/utility over imaging) |
| Sound & Connectivity | Sound: Built-in speaker (for calls, notifications, and voice feedback) and microphone (for voice commands, calls) • Connectivity: - Bluetooth 5.3 (for phone pairing, earbuds connection) - Wi-Fi 802.11 b/g/n (2.4GHz) - NFC (for contactless payments via Mi Pay) - GPS/GLONASS/Galileo/QZSS (for accurate location tracking) - Heart rate sensor, SpO2 sensor, blood pressure monitor, sleep monitor, and 100+ sports modes |
| Physical (Dimensions & Mass) | Dimensions: 46*46*11.1mm • Mass: 42.6g |
