I'm not fan of carrying 2 phones all the time. Back in the days, while I was working in the previous company, they'd give us some cheap phone that we needed to carry with us all the time, in case the boss calls, or if HR need to reach out to us. But those days are long gone.
At home I have many devices, like 6-7 (android tablet/phone, iphone, ipad) for testing/development purposes.
When I go for a smoke break I usually take the Galaxy Tab, for browsing and testing, and after the first break I leave it there to wait me for the next break
