However I did also see a news item based on some Harvard research that says smart phones reduce both your work productivity and enjoyment!  In this three year study various business groups were encouraged to turn their smart phones off after 6pm at least one day week - making for "predictable time off" or PTO.  Apparently the people who did this were more productive and enjoyed work more (as measured by responses to questions like "I feel excited at going to work in the morning"). The people who resisted the PTO had more irratnal responses to work - possibly as a result of heightened stress. And the benefits accrued even with only 1 evening a week as a PTO

So even as I say I am not a good model for this I do almost always ignore my work phone in the weekends and at least 1 day a week. So maybe I am a good example - just not today.