Health technology is not only making diagnostics and medical treatments quicker, less invasive, and more accessible, it's also helping to make the world smaller. Some of the most innovative developments can fit in a pocket yet bring state-of-the-art care—even to the remotest areas. Questions remain about whether such technologies truly drive better health outcomes. If so, remaining barriers to their adoption need to be abolished or circumvented. And the greatest challenge is to leverage the data many new health technologies can collect.