Comparing a non-smartphone to a smartphone will obviously bias the case. But the key issue is that smartphone battery capacities have gone dramatically up while their sizes have gone down over the past decade.
The significance of this is Elon Musk, who is the self-driving Uber of dot.com billionaires and is the hero of our times.
Well, I knew Steve Jobs well enough, and have met a few civilian astronauts and a bunch of other rich people. None of the others seem to have done so much for the long-term future of the human race as Musk has in leading the path to more affordable spaceflight.
Seriously, we need people actively looking into making those new type of batteries instead of just researching them and never do anything with the research, like we've seen for the past 5 to 10 years.
That's right! That's why my cell phone which uses more power than my cell phone of 10 years ago with a battery less than a third the size lasts significantly longer - because everyone's been "never doing anything with the research", right?
Good research results make news. Their employment in commercial products generally doesn't.
Beware of all enterprises that require new clothes, and not rather a new wearer of clothes. -- Henry David Thoreau