IDC said the total shipment volume of wearable devices reached 19.7 million units in the first quarter of 2016, an increase of 67.2 per cent from the 11.8 million units shipped in the first quarter of 2015. The research company noted that the wearables market has continued to mature and expand, but is also becoming more crowded. However, smart watches and basic wearables such as fitness bands, connected clothing or "hearables" continue to show strong growth. Fitbit remained the number one wearables vendor, while Xiaomi replaced Apple in the number two spot. Garmin was ranked third, and Samsung and BBK were in joint fifth position. Report