Unfortunately, 2.4ghz is still pretty much the only option for something like a smart lightbulb or smart plug. For the printer though, it seems like either the printer software or my router is smart enough to talk to it even though my PC is on the 5ghz SSID. But the same can't be said of the bulbs and plugs. I had to return a bunch and swap for Amazon echo smart plugs, which are also only 2.4ghz, but the echo itself is smart enough to work with them even though it too is on the 5ghz said.