We forecast that the installed base of M2M connected devices within the health sector will exceed 774 million by 2020. North America will be the largest region for the duration of the forecast, with a share of worldwide connected medical devices peaking at 54% and falling back to 42% by the end of the forecast period, as growth in Europe accelerates.Short range connectivity technologies dominate throughout the forecast due to the typical topology of M2M healthcare solutions: the majority of solutions are characterized by multiple devices, connected to a central hub or aggregation device. Accordingly, we expect that the overwhelming majority of M2M connected healthcare devices will be connected only indirectly to wide area networks.In terms of wide area mobile connectivity technologies, 3G dominates in the early years of the forecast, mostly transitioning to 4G over a four year period between 2012 and 2016. 2G finds relatively little application in the M2M connected healthcare market.Total traffic generated by M2M applications in the healthcare sector (and carried over wide area networks) will approach 78 petabytes by 2020, a CAGR of 75% from 2010's figure of 283 terabytes. The proportion of such traffic carried over mobile networks will remain relatively high throughout the forecast period, falling from 72% in 2010 to 43% in 2020. Total mobile network traffic generated by M2M solutions in the healthcare sector will exceed 33 petabytes by 2020, a CAGR of 66%.Overall, global network traffic revenues for mobile operators can be expected to exceed EUR3.1 billion in 2020. Revenue for M2M connected healthcare applications will total EUR 69 billion1 in 2020, with the North America region accounting for 37% of global revenues, Europe 31% and Developed Asia Pacific and Emerging Asia Pacific markets accounting for 12% and 11% of revenues, respectively.