Berg Insight said shipments of connected wearables reached 72.5 million in 2015, up from 25.3 million devices in the previous year. Growing at a CAGR of 25.8 per cent, total shipments of smart watches, smart glasses, fitness and activity trackers, people monitoring and safety devices and medical devices as well as other wearable devices are forecast to reach 228.3 million units in 2020. Bluetooth is expected to remain the primary connectivity option in the coming years. A total of 17.8 million of the wearables sold in 2020 are tipped to incorporate embedded cellular connectivity, mainly in the smart watch, people monitoring and safety categories. Smart watch sales also picked up during 2015 and shipments are on track to reach 19.5 million units by the end of the year, a 353 per cent increase year-on-year. Release