Super duper plug in code scanner w. WiFi?

Don't the videos you're watching say anything about the tools they're using? Seems like that would be the place to get an answer to your questions.

I have a few of the plug-in devices that use Blu-Tooth to communicate with the app on my Android phone. One is called "Torque" that I use a lot (I bought the "pro" no-ad version) and the other is "Car Scanner" which I haven't warmed up to as of yet but I did buy the no-ad version of that app also. They've help me diagnose problems that lit me "Service Engine Soon" light and reset it after I made repairs. Anyone that still does some of their own work should have one in their toolbox today.

yes, mine uses dash command

The "pro" level scanner do come with bluetooth dongles, but all of them seem to use a tablet size display unit, some smaller, some larger.

The pro ones require a subscription service for constant updates. This cost at least $100/mo.

I have one of those “cheap” plug in modules and use the Dash Command app on my iPad.
I can check and reset codes as you would expect but also look at and monitor critical engine functions.
I guess it all depends on what you are trying to accomplish.
For a <$20 investment, I am happy with what I have.

You can buy “Pro” level apps, but your gunna pay for it.