Device.h

The physical height of the screen in pixels, as an integer. Added in OpenRTB 2.3 with w, ppi, and pxratio.

CurrentintegerOptionalSince 2.3

Field facts

Path: device.h
Object: Device
Type: integer
Requirement: Optional
Added: OpenRTB 2.3
Spec section: 3.2.18

How it is used

These are hardware pixels, not CSS or density-independent pixels; divide by device.pxratio to get the logical size. The value describes the whole screen. The ad slot size lives on the impression, for example in imp.banner.h.

Example

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

{
  "id": "req-1",
  "device": {
    "h": 2532
  }
}

Common mistakes

Sending the slot or viewport size instead of the screen size.

Version history

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	integer	No	No
2.4	integer	No	No
2.5 to 2.6-202606	integer	No	No