I listen to music 14 hours a day if available. Keeps the jingles/earworms out of my head.
Not on the bike. I listen for cars. I can't use a mirror, it makes me seasick. Garmin Varia radar warned me of cars crossing a 4 way stop I passed 2 blocks ago, cars in the left turn lane 4 lanes left from the sidewalk I'm on, trucks on I65 300' to the side through a chain link fence, lawnmowers in yards, corn harvesters in fields. I deleted the display and use it as a taillight.
No smart phone either. I bought one last month. A samsung galaxy a6. The box was labled verizon which works at my summer property. When I charged it, It was really tracfone which doesn't. Back to the verizon flip phone; put a new battery in it.