I don't think I could.
Even if I did, I wouldn't choose to live like that, because of all the things I can do with smartphone and, above all, the internet.
Without them, I would have to:
- talk to the phone while I'm driving
- call people during their working or sleeping hours for something that can be solved with a message
- write traditional letters to customers (and wait for weeks) instead of sending emails
- wait for the printed versions of official announcements (and waste valuable time) instead of going to the official website
- go to bus-stops early and wait for a long time, instead of looking at tables online.
- guess the weather and carry/ not carry an umbrella
- lose half of my professional opportunities, which don't exist outside the internet
- stop lifelong learning, because it is a torture without internet
- rely on local stores for goods and hope they have variety and good prices
- stop a lot of activities that I am doing online and/or on a smartphone(e.g. watching foreign television, reading e-books, listening to music)
- spend a lot on communications instead of using free messaging options.
I'm sure there are dozens more things that I would miss, but I think the above are enough to make my point