so, the video about discusses "Google is rolling out a new service called RCS, or just "Chat," to replace SMS and possibly compete with iMessage..."
after some google searching, i keep seeing blurbs stating T-Mobile was the first to adopt this technology. however, i can't seem to find anything on T-Mobile's website. is this already a thing? am i using it and not knowing it? (i have 2 Galaxy S7's, 1 REVVL and an iPhone 5s) - if not, how do i enable it?
and, for devices, I found Advanced messaging: Samsung Galaxy S7
Didn't find anything for the REVVL. iOS is probably not supported at this time, as stated in the video, Apple would need to do something for it.
So, it's a combination of the network and devices.
Manage your T-Mobile account