[arthurfm]

The Pixel 3/3 XL (and several other Android smartphones) can run both a hotspot and Wi-Fi simultaneously. [1]

I could be wrong, but I am fairly sure these phones only have a single Wi-Fi module.

[1] https://www.androidpolice.com/2018/11/03/pixel-3-3-xl-suppor...

[gregmac]

My first thought was perhaps this could be done using 2.4 for one and 5ghz for the other, but while I was trying to find an example of configuring the radios independently, I came across DD-Wrt "Repeater Bridge" mode [1] so I don't see why that wouldn't be what the Pixel is doing.

[1] https://wiki.dd-wrt.com/wiki/index.php/Repeater_Bridge

[oneplane]

Probably a special chipset or driver that is not freely available.