Wearable sensors make up one of the fastest-growing technology markets. According to market research firm International Data Corporation, total global shipment volumes of wearables reached 19.7 million units in 1Q16, an increase of 67.2 percent from the 11.8 million units shipped in 1Q15. Wearable devices are rapidly advancing in terms of technology, functionality and size, with more real-time applications, especially for health monitoring.