This is a decent summary for the uninitiated by Forbes, on Big Data and it's application in Insurance. There have been more detailed and engaging debates, but the Forbes article is a good introduction.

IMHO, the interesting thing here is the overlap between Wearables and Big Data, which is much like the application of telematics.

Notwithstanding the exciting developments for Insurers, the health and lifestyle benefits for the Insured in adopting these technologies are very apparent.