OPPO Enco Free4
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Revision as of 09:17, 24 September 2025 by LiuJiaxin (talk | contribs) (Created page with "{{Classification |name=OPPO Enco Free 4 |brand=OPPO |website=https://www.oppo.com/ |release_date=2025-04-10 |generation=Enco Free series 4th generation |model=OPPO Enco Free 4...")
Classification
| OPPO Enco Free4 | |
|---|---|
| Classification | |
| Grade | B |
| Calculator version | [[:Category:Calculator v|]] |
| Classification date | |
| Information | |
| Name | OPPO Enco Free 4 |
| Brand | OPPO |
| Generation | Enco Free series 4th generation |
| Model(s) | OPPO Enco Free 4 |
| Release date | 2025-04-10 |
| Type/Category | True Wireless Stereo (TWS) Earbuds |
| Website | [1] |
| Status | In sale |
| More | |
| Dimensions | 20×18×21mm |
| Mass | 4.5g |
| Operating system | |
| Companion App | HeyMelody |
| CPU | |
| GPU | |
| Memory | |
| Storage | |
| Battery | Single earbud battery: 41mAh; Charging case battery: 580mAh |
| Power | |
| Charging | |
| Display | |
| Camera | |
| Sound | |
| Connectivity | Bluetooth 5.4, supports dual-device connection |
| Device | |||
|---|---|---|---|
| Criterion | Value | Proof(s) | Comment |
| Known hardware tampering | None | [2] | OPPO's true wireless earbuds, like OPPO Enco Free 4, have strict quality control and official channels for maintenance, so unauthorized hardware tampering is rare. |
| Known vulnerabilities | Rare | [3] | OPPO regularly addresses security issues, so known vulnerabilities in its earbuds are not widespread. |
| Prior attacks | Rare | [4] | There are relatively few publicly known prior attacks specifically targeting OPPO's true wireless earbuds. |
| Updatability | Very common | [5] | OPPO provides regular firmware updates for its true wireless earbuds to enhance performance and security. |
| Category score | 2 | ||
| System | |||
|---|---|---|---|
| Criterion | Value | Proof(s) | Comment |
| Authentication with other systems | Partial | [6] | Can authenticate with some OPPO - related systems, but not all external systems. |
| Communications | Encrypted with up-to-date encryption | [7] | Uses modern encryption protocols like Bluetooth's secure protocols for communication. |
| Storage | Encrypted with up-to-date encryption | [8] | Employs up - to - date encryption for any stored data (like pairing information). |
| Category score | 2 | ||
| User Authentication | |||
|---|---|---|---|
| Criterion | Value | Proof(s) | Comment |
| Account management | Basic | [9] | Offers basic account - related functions for device pairing and simple settings. |
| Authentication | Secure | [10] | Uses secure methods like Bluetooth pairing with encryption for authentication. |
| Brute-force protection | Exist | [11] | Has mechanisms to detect and prevent brute - force attempts during pairing. |
| Event logging | Access event logged | [12] | Logs access events related to device pairing and connection. |
| Passwords | Default/Common/Easy to guess | [13] | Typically uses default or simple pairing codes that are easy to use but not highly complex. |
| Category score | 2 | ||
| Grade | B |
|---|
