"A new study of media and attention by Nielsen Co. confirms what has now become conventional wisdom: Smartphones are winning and traditional television is losing..." Fortune, 2015Not exactly.
Nielsen's Total Audience Report for the 4th quarter of 2016 just arrived and it has some interesting stuff in it. First have a look at this chart.
While time spent with Smart Phones has more than doubled in 2 years, time spent with TV, DVR's and Radio is remarkably stable. (You'd never know it if you read horseshit like this 2 years ago.)
Observation tells us that a lot of time spent on cell phones is done during commutes, in restaurants, or standing around waiting for the fat guy to finish up in the men's room. It is not replacing other media occasions, it is inventing new ones.
Smart phones seem to be a last choice for viewing video. Here's a chart I put together from Nielsen's figures illustrating how people watched video last quarter.
Viewing of live TV still dwarfs all other types of video consumption combined.