I&#x27;ve worked in construction and I use a Nokia dumbphone. The reason for it is that I need to answer calls quickly while at work. So the phone has to be in a pocket close by. And it&#x27;s likely that most pockets &quot;close by&quot; also have some sand in them.<p>Nobody has money to buy new iPhone every two months. But it&#x27;s manageable to buy new dumbphone once a year.