The Vert 2 activity tracker knows if you're making the effort
 

The original Vert was all about the jumping. But it was also very accurate about the jumping. The wearable is getting a 2016 refresh, with an expanded repertoire of metrics that not only includes the frequency of intense movements (sensors are accele...

http://www.engadget.com/2016/01/04/v...ivity-tracker/