Device.hwv

The hardware version of the device, as a string, used to tell apart generations that share a model name. Added in OpenRTB 2.3.

CurrentstringOptionalSince 2.3

Field facts

Formats vary by seller: some send a marketing generation such as "13 Pro" and others an internal identifier. Publish which form you use.

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

{
  "id": "req-1",
  "device": {
    "hwv": "13 Pro"
  }
}

Added in OpenRTB 2.3, 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
2.3 to 2.3.1	string	No	No
2.4	string	No	No
2.5 to 2.6-202606	string	No	No