connectiontype 4 means Cellular Network - 2G
A second-generation cellular connection, too slow for most video.
When to send it
Send 4 when the device is on a 2G network such as GSM with GPRS or EDGE data. It survives mainly where newer networks are thin and on low-cost devices.
Buyers use 4 to suppress video and heavy rich media or to choose the lightest creative they have, and some will not bid on video at all. It is confused with 3 when the seller cannot read the generation; send 4 only when the platform reports a 2G radio technology.
Example
{
"device": {
"connectiontype": 4
}
}Fields that carry it
Other values in connection types
| Value | Name |
|---|---|
1 | Ethernet; Wired Connection |
2 | WIFI |
3 | Cellular Network - Unknown Generation |
5 | Cellular Network - 3G |
6 | Cellular Network - 4G |
7 | Cellular Network - 5G |
The connection types list page explains the whole list and its common mistakes.