Apple Watch Series 2 (A1757)
From Wiki-IoT
Revision as of 07:46, 25 October 2026 by Mingxuan Shao (talk | contribs) (Initial security assessment of the discontinued Apple Watch Series 2, including hardware specifications, operating-system limitations, security classifications, and supporting references. Final ratings require verification against the WikiIoT methodology and relevant Apple security documentation.)
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Security Grade
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Apple Watch Series 2
Brand: Apple (Parent: Apple Inc.) Category: Smartwatch • Model / Gen: Apple Watch Series 2 A1757 Release Date: 2016-09-16 • Status: End of sale Classification Date: • Official Website | |
Contents
Security Evaluation
1. Device Security
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Known hardware tampering | Rare | 🔗 Proof | No model-specific evidence of widespread hardware tampering has been identified in the sources reviewed. This does not establish resistance to physical attacks. |
| Known vulnerabilities | Very common | 🔗 Proof | Apple documented a security vulnerability affecting Apple Watch Series 2 in watchOS 6.3. The device's limited operating-system support increases concern about exposure to subsequently discovered vulnerabilities. |
| Prior attacks | Rare | 🔗 Proof | No documented history of widespread attacks targeting this exact model has been established from the sources reviewed. This rating reflects limited evidence, not proof that attacks have never occurred. |
| Updatability | Rare | 🔗 Proof | Apple lists watchOS 6.3 as the latest supported version for Series 2. It cannot upgrade to current major watchOS versions, limiting access to newer security improvements. |
| Category Score | Score: 3 / 3 | ||
2. System Security
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Authentication with other systems | Partial | 🔗 Proof | The watch can pair with a compatible iPhone and use Apple's security features. Its older operating system limits compatibility with some newer devices and services. |
| Communications | Encrypted with obselete encryption | 🔗 Proof | Apple documents encryption for communications between Apple Watch and its paired iPhone. The encryption methods depend on the operating-system versions involved. Older devices and software may use different cryptographic suites from newer models. |
| Storage | Encrypted with up-to-date encryption | 🔗 Proof | Apple documents hardware-encrypted storage and data-protection mechanisms for Apple Watch. The exact protection applicable to Series 2 should be verified against its hardware and watchOS version. |
| Category Score | Score: 2 / 3 | ||
3. User Authentication
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Account management | Basic | 🔗 Proof | The watch can be managed through its paired iPhone and can use Activation Lock when supported and enabled. Account controls are primarily managed through Apple's ecosystem rather than directly on the watch. |
| Authentication | Secure | 🔗 Proof | The watch supports passcode-based access control and automatic locking when removed from the wrist if wrist detection is enabled. Security depends on the selected passcode and configuration. |
| Brute-force protection | Exist | 🔗 Proof | Apple documents an option to erase watch data after 10 consecutive unsuccessful passcode attempts. This feature must be enabled to use the automatic erase protection. |
| Event logging | Partial logging | 🔗 Proof | The watch and its paired iPhone may retain diagnostic information, but the availability of detailed security-event logs for independent auditing is limited. |
| Passwords | Default/Common/Easy to guess | 🔗 Proof | The watch uses a passcode, which may be a simple four-digit code if permitted by its configuration. Users can choose a stronger passcode, so the actual risk depends on the chosen settings. |
| Category Score | Score: 2 / 3 | ||
Technical Specifications
| Property | Details |
|---|---|
| Operating System & App | watchOS (Companion App: Apple Watch app) |
| Hardware (CPU / GPU) | CPU: Apple S2 SiP, dual-core processor • GPU: PowerVR G6200 GPU |
| Memory & Storage | Memory: 512 MB • Storage: 8 GB |
| Power, Battery & Charging | Battery: Built-in rechargeable lithium-ion battery • Power: USB power adapter • Charging: Apple Watch Magnetic Charging Cable |
| Display & Camera | Display: Second-generation OLED Retina display with Force Touch; maximum brightness of 1,000 nits; resolution of 272 × 340 pixels • Camera: No built-in camera |
| Sound & Connectivity | Sound: Built-in speaker and microphone • Connectivity: Wi-Fi 802.11b/g/n (2.4 GHz), Bluetooth 4.0, NFC, and built-in GPS/GLONASS |
| Physical (Dimensions & Mass) | Dimensions: 38.6 × 33.3 × 11.4 mm • Mass: 28.2 g |
