Sony makes a good case for sticking a fitness trainer right in your ear

We know that fitness trackers are a thing, and headphones are certainly a huge thing, but are fitness-tracking headphones a thing?

Sony wants to believe this is a new category, which is why it debuted the Smart B-Trainer back in January. It wasn’t the first manufacturer to build fitness-tracking tech into headphones (that was probably LG, a year earlier), but it built on something Sony had been doing for a while: Headphones that did a lot more than just relay sound.

Wireless headphones came in the late 2000s. The Walkman headphones, which include storage for music, debuted in 2011 and Sony made an underwater version — yes, underwater, not just waterproof — in 2013. Read more...