10 Things Wearables Have Taught Us About Ourselves

Tim Cook debuts the Apple Watch collection during an Apple special event on March 9, 2015 in San Francisco. What have wearables taught us, so far? Stephen Lam/Getty Images

Back in 1980, the height of nerdy chic was the Casio C-80 calculator watch. This boxy little bad boy had a stopwatch, a full numeric keyboard and dedicated buttons for all of your favorite basic mathematical functions (sorry trigonometry fans, no sin or cos). And it told time!

Fast forward to 2015. With all of the groundbreaking technological innovations we've witnessed in the past 35 years – including the advent of the Internet, e-mail, HDTVs, smartphones, touchscreens – the most hotly anticipated high-tech gadget of the year is ... a watch.

The Apple Watch, debuting in 2015, is the latest iteration of wearable technology, or "wearables" as the industry types say. In 2014, consumers worldwide bought around 21 million wearable devices for tracking their physical activity, monitoring their sleep, counting calories and generally making themselves feel superior to people without such gadgets [source: The Economist].

If the Apple Watch has the same effect on the wearables market as the iPhone and iPad had on smartphones and tablet computers, then wearable tech is set to explode. But what does our desire for gadgets like Fitbit or Nike+ FuelBand – and the reams of data they collect – tell us about ourselves? Here are 10 things we've learned so far.