USAISRAELI

The puritanism about smartphones is crazy. A true ben torah can take anything and use it to be mekadaish. It’s just a tool.
That’s the difference between being tahor and kadosh. Someone tahor will, indeed, not have a phone. A kadosh, otoh, will have one, and will use it for shem shamayim.
Now, you want to say, that a yeshiva bachur should not have anything to distract him at all, including phones? Fine. but not because of it being a smartphone, per se.