Xiaomi Watch S2
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Revision as of 08:27, 27 September 2025 by HuangHaikuo20222806 (talk | contribs) (The Xiaomi Watch S2 is an evolution of the S1, offering two size options and refined design. Like its predecessor, its security model is typical for wearables, relying heavily on the security of the paired smartphone and the Bluetooth connection. It lacks advanced standalone security features like robust encryption for local storage or detailed authentication logging. Security updates are delivered via the companion app. Overall, it is considered secure for its intended use case when paired w...)
Classification
| Xiaomi Watch S2 | |
|---|---|
| Classification | |
| Grade | B |
| Calculator version | [[:Category:Calculator v|]] |
| Classification date | |
| Information | |
| Name | Xiaomi Watch S2 |
| Brand by Parent | Xiaomi by Xiaomi Corporation |
| Generation | Second Generation (S Series) |
| Model(s) | M2225W1, M2226W1 |
| Release date | 2022-12-11 |
| Type/Category | Smartwatch |
| Website | [1] |
| Status | End of sale |
| More | |
| Dimensions | 42mm: 42.3 x 42.3 x 11.4 mm; 46mm: 46.5 x 46.5 x 11.4 mm |
| Mass | 42mm: ~37g (without strap); 46mm: ~52g (without strap) |
| Operating system | Proprietary RTOS (Managed by Xiaomi HyperOS ecosystem) |
| Companion App | Xiaomi Wear (Previously Mi Fitness) |
| CPU | BES2500BP |
| GPU | Integrated |
| Memory | 2GB RAM (approx.) |
| Storage | 32GB ROM (approx.) |
| Battery | 42mm: 305 mAh; 46mm: 500 mAh |
| Power | Magnetic charging puck |
| Charging | Wired magnetic charging, typical full charge in about 2 hours |
| Display | 1.32-inch (42mm) / 1.43-inch (46mm), AMOLED, 466 x 466 resolution, Always-On Display support |
| Camera | No |
| Sound | Built-in microphone and speaker |
| Connectivity | Bluetooth 5.2, NFC (region dependent) |
| Device | |||
|---|---|---|---|
| Criterion | Value | Proof(s) | Comment |
| Known hardware tampering | None | [] | |
| Known vulnerabilities | Rare | [General wearable security advisories] | Potential vulnerabilities typically related to Bluetooth pairing or companion app. |
| Prior attacks | None | [] | |
| Updatability | Very common | [Firmware updates via Xiaomi Wear app] | Receives firmware updates for features and security through the companion app. |
| Category score | 2 | ||
| System | |||
|---|---|---|---|
| Criterion | Value | Proof(s) | Comment |
| Authentication with other systems | Partial | [Xiaomi Wear app functionality] | Pairs with smartphone via Bluetooth for data sync and notifications |
| Communications | Encrypted with up-to-date encryption | [Uses standard Bluetooth encryption protocols] | |
| Storage | No encryption | [Nature of wearable device data storage] | Typically stores limited, non-sensitive data locally; sensitive data stored on paired phone. |
| Category score | 2 | ||
| User Authentication | |||
|---|---|---|---|
| Criterion | Value | Proof(s) | Comment |
| Account management | Basic | [Xiaomi account integration via app] | |
| Authentication | Basic | [Product manual] | Unlocks when paired/connected to phone. May offer simple screen lock pattern. |
| Brute-force protection | Basic | [Limited by simple interface] | Lacks sophisticated lockout mechanisms due to limited input methods. |
| Event logging | Access event logged | [Device interface and app] | No user-accessible event logging for authentication attempts on the watch itself. |
| Passwords | Default/Common/Easy to guess | [] | |
| Category score | 2 | ||
| Grade | B |
|---|
