Device.os
The device operating system, as a string such as "iOS", "Android", or "Windows".
Field facts
- Path
device.os- Object
- Device
- Type
- string
- Requirement
- Optional
- Added
- OpenRTB 2.0
- Spec section
- 3.2.18
How it is used
AdCOM 1.0 has an Operating Systems list, but OpenRTB 2.x keeps this field a free-text string, so sellers send names rather than list codes and buyers normalize spelling per exchange.
Example
Where the field sits in a payload, with everything else left out:
{
"id": "req-1",
"device": {
"os": "Android"
}
}Common mistakes
- Sending an AdCOM Operating Systems integer instead of a name.
Version history
Added in OpenRTB 2.0, 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 |
|---|---|---|---|
| 2.0 to 2.2 | string | No | No |
| 2.3 to 2.3.1 | string | No | No |
| 2.4 | string | No | No |
| 2.5 to 2.6-202606 | string | No | No |