Have a colleague doing this. His rationale is that the phone is for synchronous communication only. All the rest lives in the tablet and is both more practical

Have a colleague doing this. His rationale is that the phone is for synchronous communication only. All the rest lives in the tablet and is both more practical and more cumbersome enough that it is used as a tool and not addictive/wasteful of his concentration. The tablet doesn’t fit in his pockets.