# Device

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**Status:** ![Development](https://img.shields.io/badge/-development-blue)

**type:** `device`

**Description:** The device on which the process represented by this resource is running.

| Attribute  | Type | Description  | Examples  | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`device.manufacturer`](/docs/registry/attributes/device.md) | string | The name of the device manufacturer [1] | `Apple`; `Samsung` | `Recommended` | ![Development](https://img.shields.io/badge/-development-blue) |
| [`device.model.identifier`](/docs/registry/attributes/device.md) | string | The model identifier for the device [2] | `iPhone3,4`; `SM-G920F` | `Recommended` | ![Development](https://img.shields.io/badge/-development-blue) |
| [`device.model.name`](/docs/registry/attributes/device.md) | string | The marketing name for the device model [3] | `iPhone 6s Plus`; `Samsung Galaxy S6` | `Recommended` | ![Development](https://img.shields.io/badge/-development-blue) |
| [`device.id`](/docs/registry/attributes/device.md) | string | A unique identifier representing the device [4] | `123456789012345`; `01:23:45:67:89:AB` | `Opt-In` | ![Development](https://img.shields.io/badge/-development-blue) |

**[1] `device.manufacturer`:** The Android OS provides this field via [Build](https://developer.android.com/reference/android/os/Build#MANUFACTURER). iOS apps SHOULD hardcode the value `Apple`.

**[2] `device.model.identifier`:** It's recommended this value represents a machine-readable version of the model identifier rather than the market or consumer-friendly name of the device.

**[3] `device.model.name`:** It's recommended this value represents a human-readable version of the device model rather than a machine-readable alternative.

**[4] `device.id`:** Its value SHOULD be identical for all apps on a device and it SHOULD NOT change if an app is uninstalled and re-installed.
However, it might be resettable by the user for all apps on a device.
Hardware IDs (e.g. vendor-specific serial number, IMEI or MAC address) MAY be used as values.

More information about Android identifier best practices can be found [here](https://developer.android.com/training/articles/user-data-ids).

> [!WARNING]
>
> This attribute may contain sensitive (PII) information. Caution should be taken when storing personal data or anything which can identify a user. GDPR and data protection laws may apply,
> ensure you do your own due diligence.
>
> Due to these reasons, this identifier is not recommended for consumer applications and will likely result in rejection from both Google Play and App Store.
> However, it may be appropriate for specific enterprise scenarios, such as kiosk devices or enterprise-managed devices, with appropriate compliance clearance.
> Any instrumentation providing this identifier MUST implement it as an opt-in feature.
>
> See [`app.installation.id`](/docs/registry/attributes/app.md#app-installation-id) for a more privacy-preserving alternative.

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