The latest word is that Microsoft is planning a wearable device that will be tightly integrated with the Xbox One, and it's hoping it launch it next year



From Techradar:

The news comes from Joe Officer, head of Xbox One component supplier Exertis, who told PCR: The wearable market is always growing and we can expect to see Microsoft rolling out a spate of devices next year in this space.Something up its sleeveHe went on: These will be linked to the Xbox One which has loads of health and fitness apps already in it. Add that to real time heart rate monitors, health bands, scales and video sensors and users will have day in, day out, real time monitoring of themselves.

  Microsoft is planning an Xbox One wearable for 2015