UserAgent.mobile

Whether the browser prefers mobile-optimized content, where 1 means it does and 0 means it prefers the desktop or full version, taken from the Sec-CH-UA-Mobile hint.

CurrentintegerOptionalSince 2.6-202204

Field facts

Path: device.sua.mobile
Object: UserAgent
Type: integer
Requirement: Optional
Added: OpenRTB 2.6-202204
Spec section: 3.2.29

How it is used

It describes a content preference, not the hardware, so a large tablet can report 0. Use device.devicetype for the device class.

Example

Where the field sits in a payload, with everything else left out:

{
  "id": "req-1",
  "device": {
    "sua": {
      "mobile": 1
    }
  }
}

Common mistakes

Sending true or false instead of 1 or 0.

Version history

Added in OpenRTB 2.6-202204, and present in the latest snapshot. The table shows how each version's spec text types the field.

Versions	Type in the spec	Required	Deprecated
2.6-202204	Added in the first 2.6 release, published without a structured text archive; the 2.6-202210 republication is the first tagged text.
2.6-202210 to 2.6-202606	integer	No	No

Related fields

Device.devicetype

Other UserAgent fields

For a walkthrough of the whole object, read User-agent client hints and sua.