It looks like it goes away (I went into the settings for one contact, where there’s a toggle to switch back to SMS/MMS).
Unfortunately, I can’t figure out how to change it back to RCS for that conversation now.
Also, on a more personal note: the baby blue background is ugly AF. Like actually just heinous. I’d rather it wasn’t there, you get a perfectly good indicator RIGHT ABOVE THE TEXT INPUT FIELD what it’s about to send.
What sets some of Boox’s models apart from the other e-readers is they’re full Android devices; you can install most apps from the Play Store. Perhaps not as great for battery life, but a world apart so far as functionality goes (and you can even install the other e-book vendors’ apps if you have existing purchased content).
In the “pocketable” size category, Palma which is a phone form-factor device (I have one of these, has been great), the Page looks very much inspired by the design of the Kindle Oasis, or the Tab Mini C has a colour e-ink display.