The shipping end alone I can't imagine having to do it over the phone. When I first got into this stuff twenty years ago we still did that with UPS, had a big log book and freight was done on the phone. It was hell.
I think you didn't understand some of the big points. No one says you should be performing logistics and procurement primarily over the phone. However, the most important aspects of logistics and procurement such as price negotiation, getting the most favourable terms for demurrage/detention and solving the most complex paper work issues you might run with at customs often requires a combination of phone + e-mail/text. For example, when I had 70 tons of materials going into the DWS airport in UAE at 5am and it was subjected to a random search that required opening custom built protection on the shipment, I had to call carpenters from the factory to assist with their tools. Guess what, if I sent an e-mail/text at 5am, they are sleeping and would have never gotten to the airport on time and the entire airfreight could have been delayed, costing thousands of dollars of incurred costs.
In other words, you can gather all the data and keep track of data on a computer but the human factor of discussing/negotiating/problem-solving in person or over the phone often brings even better results.
I've worked in 3 different professional industries across 3 continents and so far in all of them, using a phone was a requirement and more so the higher up you move. I am well under 35. Interestingly enough, the social skills become even more integral should you happen to meet Directors, VPs, CFOs, CEOs and start being in charge of business development, etc. Usually the #1 complaint new businesses have is younger kids graduating today have very weak soft skills. You can be the smartest guy in the room but if you have horrible soft skills and can't be a leader, team-build and don't have excellent interpersonal and communication skills, it's very unlikely you'll get the promotion you think you deserve. Fact is, there should not even be a discussion
if you should or should not use the phone. An employee should use any device/means of communication that makes him/her more productive and if that happens to be a phone call, it should be exercised. I can't count the number of times phone calls saved time, money and far more effectively communicated the urgency of the situation than any e-mail or text could.
Not only that, but if you ever have a chance to work in a remote location where you might have a cell phone connection, but your Internet connection is simply awful, you will truly understand the value of a phone call. If you ever ask the guys who work for the U.S. DoD / in 3rd world countries, that happens a lot, which makes phone calling absolutely mandatory, no matter your age.
Anyway, back to the topic. What does an iWatch/smart-watch do that a smartphone can't that warrants a $400-500 purchase? I guess for young kids growing up that never had a traditional watch, the smart-watch will be the bare minimum standard.