> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v23** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/fields/latest/mobile_device_constant).

[<button style="margin-top:15px">Help me build a query</button>](https://developers.google.com/google-ads/api/fields/v23/mobile_device_constant_query_builder.md.txt) [<button style="margin-top:15px">Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)</button>](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v23/resources/mobile_device_constant.proto)

A mobile device constant.

## mobile_device_constant.id

Field descriptionOutput only. The ID of the mobile device constant.
Category`ATTRIBUTE` Data Type`INT64` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[campaign_criterion](https://developers.google.com/google-ads/api/fields/v23/campaign_criterion.md.txt) [mobile_device_constant](https://developers.google.com/google-ads/api/fields/v23/mobile_device_constant.md.txt)

## mobile_device_constant.manufacturer_name

Field descriptionOutput only. The manufacturer of the mobile device.
Category`ATTRIBUTE` Data Type`STRING` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[campaign_criterion](https://developers.google.com/google-ads/api/fields/v23/campaign_criterion.md.txt) [mobile_device_constant](https://developers.google.com/google-ads/api/fields/v23/mobile_device_constant.md.txt)

## mobile_device_constant.name

Field descriptionOutput only. The name of the mobile device.
Category`ATTRIBUTE` Data Type`STRING` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[campaign_criterion](https://developers.google.com/google-ads/api/fields/v23/campaign_criterion.md.txt) [mobile_device_constant](https://developers.google.com/google-ads/api/fields/v23/mobile_device_constant.md.txt)

## mobile_device_constant.operating_system_name

Field descriptionOutput only. The operating system of the mobile device.
Category`ATTRIBUTE` Data Type`STRING` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[campaign_criterion](https://developers.google.com/google-ads/api/fields/v23/campaign_criterion.md.txt) [mobile_device_constant](https://developers.google.com/google-ads/api/fields/v23/mobile_device_constant.md.txt)

## mobile_device_constant.resource_name

Field descriptionOutput only. The resource name of the mobile device constant.
Mobile device constant resource names have the form:

`mobileDeviceConstants/{criterion_id}`
Category`ATTRIBUTE` Data Type`RESOURCE_NAME` Type URL`N/A` FilterableTrue SelectableTrue SortableFalse RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[campaign_criterion](https://developers.google.com/google-ads/api/fields/v23/campaign_criterion.md.txt) [mobile_device_constant](https://developers.google.com/google-ads/api/fields/v23/mobile_device_constant.md.txt)

## mobile_device_constant.type

Field descriptionOutput only. The type of mobile device.
Category`ATTRIBUTE` Data Type `ENUM`
`MOBILE``TABLET``UNKNOWN``UNSPECIFIED` Type URL`google.ads.googleads.v23.enums.MobileDeviceTypeEnum.MobileDeviceType` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[campaign_criterion](https://developers.google.com/google-ads/api/fields/v23/campaign_criterion.md.txt) [mobile_device_constant](https://developers.google.com/google-ads/api/fields/v23/mobile_device_constant.md.txt)