Story

There are quite a few wearable fitness gadgets (see http://www.hongkiat.com/blog/fitness-gadgets/, http://www.sporttechie.com/2014/03/11/bsx-insight-new-fitness-wearable-provides-athletes-with-real-time-training-feedback/ ), so it seems like the trend for these kind of gadgets is bubbling up.

Why is it happening now? I suspect that its due to having easy access to funding (through crowd sourcing) makes it so that small teams feel that they can deliver on their gadget. Now that the 'cloud' is accepted by so many people, everyone can just send their data to the cloud to be processed (which means they don't have to develop desktop applications which need to run on multiple platforms, or worry about the algorithm being disassembled from the application). They can jump from idea, to prototype, integrate it with their 'cloud', develop iOS and Android apps, then be ready for final production run.